Journal articlePLoS Genet · January 2026
Transposable elements (TEs) are key agents of genome evolution across all domains of life. These mobile genetic elements can cause mutations through transposition or by promoting structural rearrangements. Stress conditions can amplify TE mobility, either ...
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Journal articleJ Infect Dis · December 20, 2025
Cryptococcus neoformans and Cryptococcus gattii are encapsulated yeasts that have become increasingly common central nervous system (CNS) pathogens within an enlarging populationof immunocompromised host. CNS disease represents a major interaction between ...
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Journal articleJ Fungi (Basel) · December 16, 2025
Infections with strains of the Cryptococcus neoformans species complex are responsible for over 100,000 deaths per year, predominantly due to meningitis in immunocompromised individuals. Despite much research, there are no licensed fungal vaccines availabl ...
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Journal articlePLoS Negl Trop Dis · December 2025
BACKGROUND: Talaromyces marneffei causes talaromycosis, a life-threatening fungal disease with limited treatment options. The standard treatment of amphotericin B (AmB) induction followed by itraconazole consolidation still results in 15% to 30% mortality. ...
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Journal articlemBio · October 8, 2025
Infections caused by fungal pathogens such as Candida and Cryptococcus are associated with high mortality rates, partly due to limitations in the current antifungal arsenal. This highlights the need for antifungal drug targets with novel mechanisms of acti ...
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Journal articleCell Rep · August 26, 2025
Opportunistic microbial pathogens that infect humans must adapt to radically different fitness landscapes as they transition from the external environment to the host niche. The nature, frequency, and magnitude of genomic changes that accompany adaptation ...
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Journal articleMed Mycol Case Rep · June 2025
Donor-derived invasive fungal infections among solid organ transplant recipients are rare but sometimes devastating events associated with notable morbidity and mortality. Here we describe two donor-derived fungal infections - one Candida parapsilosis comp ...
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Journal articleMicrobiol Mol Biol Rev · March 27, 2025
SUMMARYPathogens must acquire essential nutrients to successfully colonize and proliferate in host tissue. Additionally, nutrients provide signals that condition pathogen deployment of factors that promote disease. A series of transcriptomics experiments o ...
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Journal articleJ Fungi (Basel) · February 19, 2025
The burden of invasive fungal infections (IFIs) is increasing worldwide. National, regional, and local policies on IFI management should respond to the changing landscape. We assessed antifungal policies from five countries of varying size, IFI burden, and ...
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Journal articleMycopathologia · January 8, 2025
In the healthcare landscape, diseases such as cancer and HIV/AIDS have benefited from the patient's perspective. For fungal diseases, the patient voice remains absent in critical areas such as policy formulation, funding decisions, and research priorities. ...
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Journal articleAm J Transplant · December 2024
Mycoplasma hominis and Ureaplasma species are urogenital mollicutes that can cause serious donor-derived infections in lung transplant recipients. Best practices for mollicute screening remain unknown. We conducted a single-center prospective study analyzi ...
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Journal articlemBio · October 16, 2024
UNLABELLED: Cryptococcal meningitis causes an estimated 112,000 global deaths per annum. Genomic and phenotypic features of the infecting strain of Cryptococcus spp. have been associated with outcomes from cryptococcal meningitis. Additionally, population- ...
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Journal articleProc Natl Acad Sci U S A · August 6, 2024
Invasive fungal diseases are a major threat to human health, resulting in more than 1.5 million annual deaths worldwide. The arsenal of antifungal therapeutics remains limited and is in dire need of drugs that target additional biosynthetic pathways that a ...
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Journal articleLancet Infect Dis · August 2024
Cryptococcosis is a major worldwide disseminated invasive fungal infection. Cryptococcosis, particularly in its most lethal manifestation of cryptococcal meningitis, accounts for substantial mortality and morbidity. The breadth of the clinical cryptococcos ...
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Journal articleJ Fungi (Basel) · July 26, 2024
Cryptococcal meningitis (CM) causes significant global morbidity and mortality. Current therapeutic strategies rely on deoxycholated or liposomal forms of the polyene amphotericin B. Nystatin is also a polyene with broad-spectrum antimicrobial activity. Tr ...
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Journal articleOpen Forum Infect Dis · July 2024
The Mycoses Study Group Education and Research Consortium is a collective of clinicians, researchers, and educators with the common goal to advance awareness, diagnosis, and management of invasive fungal diseases. Clinical Mycology Today, the Mycoses Study ...
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Journal articleMed Mycol · June 27, 2024
Recognizing the growing global burden of fungal infections, the World Health Organization established a process to develop a priority list of fungal pathogens (FPPL). In this systematic review, we aimed to evaluate the epidemiology and impact of infections ...
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Journal articleMed Mycol · June 27, 2024
The World Health Organization, in response to the growing burden of fungal disease, established a process to develop a fungal priority pathogens list (FPPL). This systematic review aimed to evaluate the epidemiology and impact of invasive fungal disease du ...
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Journal articleMed Mycol · June 27, 2024
In response to the growing global threat of fungal infections, in 2020 the World Health Organisation (WHO) established an Expert Group to identify priority fungi and develop the first WHO fungal priority pathogen list (FPPL). The aim of this systematic rev ...
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Journal articleMed Mycol · June 27, 2024
Recognizing the growing global burden of fungal infections, the World Health Organization established a process to develop a priority list of fungal pathogens (FPPL). In this systematic review, we aimed to evaluate the epidemiology and impact of invasive i ...
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Journal articleMed Mycol · June 27, 2024
Cryptococcosis causes a high burden of disease worldwide. This systematic review summarizes the literature on Cryptococcus neoformans and C. gattii infections to inform the World Health Organization's first Fungal Priority Pathogen List. PubMed and Web of ...
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Journal articlemBio · May 8, 2024
Invasive fungal infections are a significant public health concern, with mortality rates ranging from 20% to 85% despite current treatments. Therefore, we examined whether a ketogenic diet could serve as a successful treatment intervention in murine models ...
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Journal articleAm J Transplant · April 2024
Mollicute infections, caused by Mycoplasma and Ureaplasma species, are serious complications after lung transplantation; however, understanding of the epidemiology and outcomes of these infections remains limited. We conducted a single-center retrospective ...
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Journal articleAntimicrob Agents Chemother · March 6, 2024
Invasive primary Candida surgical site infections (IP-SSIs) are a common complication of liver transplantation, and targeted antifungal prophylaxis is an efficient strategy to limit their occurrence. We performed a retrospective single-center cohort study ...
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Journal articleClin Infect Dis · February 17, 2024
BACKGROUND: Invasive fungal infections have been described throughout the COVID-19 pandemic. Cryptococcal disease after infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been reported in several isolated case reports and 1 lar ...
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Journal articleNat Commun · February 7, 2024
Transcriptional regulator MtrR inhibits the expression of the multidrug efflux pump operon mtrCDE in the pathogenic bacterium Neisseria gonorrhoeae. Here, we show that MtrR binds the hormonal steroids progesterone, β-estradiol, and testosterone, which are ...
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Journal articleMethods Mol Biol · 2024
Biolistic transformation of Cryptococcus neoformans is used as a molecular tool to genetically alter or delete targeted genes. The DNA is introduced into the yeast on DNA-coated gold beads by a helium shock wave produced using a biolistic particle system. ...
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Journal articleMethods Mol Biol · 2024
Cryptococcal meningitis (CM) is a fungal disease caused by the invasion of Cryptococcus yeast cells into the central nervous system. The organism is thought to enter the body through the lungs and then escape due to dysregulation of the immune response. Mu ...
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Journal articleFront Cell Infect Microbiol · 2024
Trehalose-6-phosphate synthase (TPS1) was identified as a virulence factor for Cryptococcus neoformans and a promising therapeutic target. This study reveals previously unknown roles of TPS1 in evasion of host defenses during pulmonary and disseminated pha ...
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Journal articleMed Mycol · December 1, 2023
Cryptococcal meningitis is the second most common cause of death in people living with HIV/AIDS, yet we have a limited understanding of how cryptococcal isolates change over the course of infection. Cryptococcal infections are environmentally acquired, and ...
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Journal articleMed Mycol · November 6, 2023
Antifungal drug resistance is an emerging cause of treatment failure in invasive fungal infections, and antifungal susceptibility testing (AFST) may inform treatment decisions. Currently, there are no established AFST guidelines for Talaromyces marneffei ( ...
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Journal articleLancet HIV · November 2023
The burden of invasive fungal infections associated with opportunistic fungal pathogens is a persistent challenge, particularly among people with advanced HIV disease. In October, 2022, WHO published the Fungal Priority Pathogens List (FPPL)-the first glob ...
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Journal articleAntimicrob Agents Chemother · October 18, 2023
Cryptococcal meningoencephalitis (CM) is a devastating fungal disease with high morbidity and mortality. The current regimen that is standard-of-care involves a combination of three different drugs administered for up to one year. There is a critical need ...
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Journal articleInfect Immun · August 16, 2023
Patients receiving the Bruton's tyrosine kinase (BTK) inhibitor ibrutinib have an increased likelihood of fungal infections. The objectives of this study were to determine if Cryptococcus neoformans infection severity was isolate dependent with BTK inhibit ...
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Journal articleCell · June 22, 2023
Systemic candidiasis is a common, high-mortality, nosocomial fungal infection. Unexpectedly, it has emerged as a complication of anti-complement C5-targeted monoclonal antibody treatment, indicating a critical niche for C5 in antifungal immunity. We identi ...
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Journal articlemBio · December 20, 2022
Cryptococcal Meningitis (CM) is uniformly fatal if not treated, and treatment options are limited. We previously reported on the activity of APX2096, the prodrug of the novel Gwt1 inhibitor APX2039, in a mouse model of CM. Here, we investigated the efficac ...
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Journal articlemBio · December 20, 2022
Cryptococcus neoformans is the causative agent of cryptococcosis, a disease with poor patient outcomes that accounts for approximately 180,000 deaths each year. Patient outcomes may be impacted by the underlying genetics of the infecting isolate; however, ...
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Journal articleExpert Opin Investig Drugs · August 2022
INTRODUCTION: The epidemiology of invasive Candida infections is evolving. Infections caused by non-albicans Candida spp. are increasing; however, the antifungal pipeline is more promising than ever and is enriched with repurposed drugs and agents that hav ...
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Journal articleLancet Microbe · July 2022
Reports of COVID-19-associated mucormycosis have been increasing in frequency since early 2021, particularly among patients with uncontrolled diabetes. Patients with diabetes and hyperglycaemia often have an inflammatory state that could be potentiated by ...
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Journal articleOpen Forum Infect Dis · June 2022
Invasive fungal infections continue to increase as at-risk populations expand. The high associated morbidity and mortality with fungal diseases mandate the continued investigation of novel antifungal agents and diagnostic strategies that include surrogate ...
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Journal articleMed Mycol Case Rep · June 2022
Cryptococcal meningitis is a fungal central nervous infection typically occurring in patients with severe immunocompromise. We present a case of cryptococcal meningitis occurring in a patient with active injection drug use (IDU) but no immunocompromising c ...
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Journal articleJ Fungi (Basel) · April 22, 2022
Many aspects of the host response to invasive cryptococcal infections remain poorly understood. In order to explore the pathobiology of infection with common clinical strains, we infected BALB/cJ mice with Cryptococcus neoformans, Cryptococcus gattii, or s ...
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Journal articleMed Mycol · March 22, 2022
UNLABELLED: The ability of medical centers in Eastern and South-Eastern Europe to diagnose and treat fungal infections remains unknown. In order to investigate that, here we conducted a cross-sectional online survey, released at both The International Soci ...
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Journal articleJ Fungi (Basel) · February 21, 2022
The administration of approved antifungals via unapproved formulations or administration routes (such as aerosol, direct injection, irrigation, topical formulation and antifungal-impregnated orthopedic beads or cement) may be resorted to in an attempt to o ...
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Journal articlemBio · December 21, 2021
The environmental yeast Cryptococcus neoformans is the most common cause of deadly fungal meningitis in primarily immunocompromised populations. A number of factors contribute to cryptococcal pathogenesis. Among them, inositol utilization has been shown to ...
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Journal articlemBio · December 21, 2021
Cryptococcus neoformans is a major human central nervous system (CNS) fungal pathogen causing considerable morbidity and mortality. In this study, we provide the widest view to date of the yeast transcriptome directly from the human subarachnoid space and ...
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Journal articleContemp Clin Trials Commun · December 2021
INTRODUCTION: Coccidioidomycosis is a fungal infection endemic in the southwestern United States (US). Primary pulmonary coccidioidomycosis (PPC) is a leading cause of community-acquired pneumonia (CAP) in this region, although its diagnosis is often delay ...
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Journal articleLancet Infect Dis · December 2021
Uncommon, or rare, yeast infections are on the rise given increasing numbers of patients who are immunocompromised or seriously ill. The major pathogens include those of the genera Geotrichum, Saprochaete, Magnusiomyces, and Trichosporon (ie, basidiomycete ...
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Journal articleLancet Glob Health · November 2021
Talaromycosis (penicilliosis) is an invasive mycosis that is endemic in tropical and subtropical Asia. Talaromycosis primarily affects individuals with advanced HIV disease and other immunosuppressive conditions, and the disease disproportionally affects p ...
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Journal articleOpen Forum Infect Dis · November 2021
We report the first case of Curvularia alcornii aortic pseudoaneurysm following bioprosthetic aortic valve replacement in an immunocompetent host. Infection was complicated by septic emboli to multiple organs. Despite aggressive surgical intervention and a ...
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Journal articlemBio · October 26, 2021
The Cryptococcus gattii species complex has often been referred to as a primary pathogen due to its high infection frequency among apparently immunocompetent patients. In order to scrutinize the immune status of patients and the lineages of etiologic agent ...
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Journal articleClin Infect Dis · October 5, 2021
BACKGROUND: Cryptococcosis due to Cryptococcus neoformans and Cryptococcus gattii varies with geographic region, populations affected, disease manifestations, and severity of infection, which impact treatment. METHODS: We developed a retrospective cohort o ...
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Journal articleLancet Infect Dis · September 2021
Cryptococcal meningoencephalitis was first described over a century ago. This fungal infection is preventable and treatable yet continues to be associated with excessive morbidity and mortality. The largest burden of disease resides in people living with H ...
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Journal articleMicrob Pathog · September 2021
The urease enzyme of Cryptococcus neoformans is linked to different metabolic pathways within the yeast cell, several of which are involved in polyamine metabolism. Cryptococcal biogenic amine production is, however, largely unexplored and is yet to be inv ...
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Journal articleMycoses · September 2021
Reports are increasing on the emergence of COVID-19-associated mucormycosis (CAM) globally, driven particularly by low- and middle-income countries. The recent unprecedented surge of CAM in India has drawn worldwide attention. More than 28,252 mucormycosis ...
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Journal articleClin Infect Dis · July 15, 2021
BACKGROUND: Talaromycosis is an invasive mycosis endemic in Southeast Asia and causes substantial morbidity and mortality in individuals with advanced human immunodeficiency virus (HIV) disease. Current diagnosis relies on isolating Talaromyces marneffei i ...
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Journal articleLancet Infect Dis · June 2021
Severe acute respiratory syndrome coronavirus 2 causes direct damage to the airway epithelium, enabling aspergillus invasion. Reports of COVID-19-associated pulmonary aspergillosis have raised concerns about it worsening the disease course of COVID-19 and ...
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Journal articleCell · May 27, 2021
Natural antibodies (Abs) can target host glycans on the surface of pathogens. We studied the evolution of glycan-reactive B cells of rhesus macaques and humans using glycosylated HIV-1 envelope (Env) as a model antigen. 2G12 is a broadly neutralizing Ab (b ...
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Journal articlemBio · April 27, 2021
Amoeboid predators, such as amoebae, are proposed to select for survival traits in soil microbes such as Cryptococcus neoformans; these traits can also function in animal virulence by defeating phagocytic immune cells, such as macrophages. Consistent with ...
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Journal articleClin Infect Dis · April 8, 2021
Cryptococcal antigen (CrAg) detection could direct the timely initiation of antifungal therapy. We searched MEDLINE and Embase for studies where CrAg detection in serum/cerebrospinal fluid (CSF) and CSF fungal culture were done on adults living with human ...
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Journal articleNeurol Clin Pract · April 2021
OBJECTIVE: To examine the longitudinal health care resource utilization, in-hospital mortality, and incidence of downstream complications of bacterial meningitis in the United States. METHODS: Using IBM MarketScan, we retrieved data on adult patients with ...
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Journal articleJ Fungi (Basel) · March 30, 2021
The genus Cryptococcus contains two primary species complexes that are significant opportunistic human fungal pathogens: C. neoformans and C. gattii. In humans, cryptococcosis can manifest in many ways, but most often results in either pulmonary or central ...
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Journal articleJ Med Microbiol · January 2021
Introduction. Paediatric bacterial meningitis remains a costly disease, both financially and clinically.Hypothesis/Gap Statement. Previous epidemiological and cost studies of bacterial meningitis (BM) have largely focused on adult populations or single pat ...
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Journal articleFront Cell Infect Microbiol · 2021
Cryptococcosis is an infectious disease of worldwide distribution, caused by encapsulated yeasts belonging to the phylum Basidiomycota. The genus Cryptococcus includes several species distributed around the world. The C. gattii/neoformans species complex i ...
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Journal articleInfect Dis Clin North Am · December 2020
Invasive fungal diseases continue to cause substantial mortality in the enlarging immunocompromised population. It is fortunate that the field has moved past amphotericin B deoxycholate as the only available antifungal drug but despite new classes of antif ...
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Journal articleMed Mycol · November 10, 2020
We previously observed a substantial burden of cryptococcal meningitis in Vietnam atypically arising in individuals who are uninfected with human immunodeficiency virus (HIV). This disease was associated with a single genotype of Cryptococcus neoformans (s ...
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Journal articleOpen Forum Infect Dis · November 2020
Talaromyces marneffei causes fatal invasive mycosis in Southeast Asia. Diagnosis by culture has limited sensitivity and can result in treatment delay. We describe the use of a novel Mp1p enzyme immunoassay (EIA) to identify blood culture-negative talaromyc ...
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Journal articleClin Infect Dis · September 12, 2020
BACKGROUND: Invasive fungal diseases (IFDs) remain important causes of morbidity and mortality. The consensus definitions of the Infectious Diseases Group of the European Organization for Research and Treatment of Cancer and the Mycoses Study Group have be ...
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Journal articleMed Mycol Case Rep · September 2020
We present a case of an invasive Curvularia infection in a patient who developed following bilateral orthotopic lung transplantation despite receiving post-transplant antifungal prophylaxis. This infection presented as mold colonies studding the interior s ...
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Journal articleJ Infect Dis · August 5, 2020
In recent years, the global public health community has increasingly recognized the importance of antimicrobial stewardship (AMS) in the fight to improve outcomes, decrease costs, and curb increases in antimicrobial resistance around the world. However, th ...
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Journal articleFEMS Yeast Res · June 1, 2020
Cryptococcal urease is believed to be important for the degradation of exogenous urea that the yeast encounters both in its natural environment and within the human host. Endogenous urea produced by the yeast's own metabolic reactions, however, may also se ...
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Journal articleMed Mycol Case Rep · March 2020
Ibrutinib has revolutionized the treatment of chronic lymphoid malignancies. Despite its success, ibrutinib has been linked with several reports of invasive fungal infections. We present a case of CNS aspergillosis in a CLL patient on first line ibrutinib ...
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Journal articleCurrent Fungal Infection Reports · March 1, 2020
Purpose of the Review: The purpose of this review is to summarize and evaluate relevant literature on combination antifungal therapy for invasive fungal infections (IFIs). Recent Findings: Cryptococcal meningitis has the largest body and highest quality in ...
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Journal articleMed Mycol Case Rep · March 2020
Diagnosis of invasive fungal disease remains an ongoing challenge for clinicians, while continuously evolving treatment regimens increase patient risk for invasive infection. This case highlights how molecular testing led to the diagnosis of co-infection w ...
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Journal articleJ Med Microbiol · February 2020
Introduction. Previous studies of viral encephalitis have focused on acute costs, estimating incidence at 7.3 per 100 000 and total US annual charges at $2 billion in 2010.Aim. We aim to quantify the most updated longitudinal health economic impact of vira ...
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Journal articleMicrobiol Resour Announc · January 9, 2020
Talaromyces marneffei is a thermally dimorphic fungus endemic in China and Southeast Asia that causes fatal infections in immunocompromised individuals, particularly in patients with advanced HIV disease. Here, we report the complete genome sequences of tw ...
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Journal articleClin Infect Dis · January 1, 2020
BACKGROUND: Lung transplant recipients commonly develop invasive fungal infections (IFIs), but the most effective strategies to prevent IFIs following lung transplantation are not known. METHODS: We prospectively collected clinical data on all patients who ...
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Journal articleMicrobial genomics · January 2020
Cryptococcus neoformans is an opportunistic fungal pathogen that at its peak epidemic levels caused an estimated million cases of cryptococcal meningitis per year worldwide. This species can grow in diverse environmental (trees, soil and bird excret ...
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Journal articlemBio · December 3, 2019
Cryptococcal meningitis is a lethal disease with few therapeutic options. Induction therapy with fluconazole has been consistently demonstrated to be associated with suboptimal microbiological and clinical outcomes. Exposure to fluconazole causes dynamic c ...
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Journal articlemSphere · November 20, 2019
AP-1-like transcription factors play evolutionarily conserved roles as redox sensors in eukaryotic oxidative stress responses. In this study, we aimed to elucidate the regulatory mechanism of an atypical yeast AP-1-like protein, Yap1, in the stress respons ...
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Journal articleAntimicrob Agents Chemother · September 2019
Cryptococcus spp., important fungal pathogens, are the leading cause of fungus-related mortality in human immunodeficiency virus-infected patients, and new therapeutic options are desperately needed. Isavuconazonium sulfate, a newer triazole antifungal age ...
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Journal articleJ Infect Dis · July 31, 2019
BACKGROUND: Candidemia, one of the most common causes of fungal bloodstream infection, leads to mortality rates up to 40% in affected patients. Understanding genetic mechanisms for differential susceptibility to candidemia may aid in designing host-directe ...
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Journal articlePLoS Pathog · July 2019
Metabolically quiescent pathogens can persist in a viable non-replicating state for months or even years. For certain infectious diseases, such as tuberculosis, cryptococcosis, histoplasmosis, latent infection is a corollary of this dormant state, which ha ...
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Journal articleAnn Intern Med · June 18, 2019
BACKGROUND: Blood cultures, the gold standard for diagnosing bloodstream infections (BSIs), are insensitive and limited by prolonged time to results. The T2Bacteria Panel (T2 Biosystems) is a direct-from-blood, nonculture test that identifies the most comm ...
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Journal articleNat Commun · May 2, 2019
Cryptococcus neoformans (C. neoformans var. grubii) is an environmentally acquired pathogen causing 181,000 HIV-associated deaths each year. We sequenced 699 isolates, primarily C. neoformans from HIV-infected patients, from 5 countries in Asia and Africa. ...
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Journal articleClin Infect Dis · February 15, 2019
Mucormycosis outbreaks have been linked to contaminated linen. We performed fungal cultures on freshly-laundered linens at 15 transplant and cancer hospitals. At 33% of hospitals, the linens were visibly unclean. At 20%, Mucorales were recovered from >10% ...
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Journal articleAntimicrob Agents Chemother · February 2019
Amphotericin B deoxycholate (DAmB) is a first-line agent for the initial treatment of talaromycosis. However, little is known about the population pharmacokinetics and pharmacodynamics of DAmB for talaromycosis. Pharmacokinetic data were obtained from 78 p ...
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Journal articleJ Antimicrob Chemother · January 1, 2019
OBJECTIVES: Voriconazole, a triazole antifungal, is frequently prescribed in a complex patient population with comorbidities that require concomitant administration of QT interval-prolonging medications. We sought to evaluate QT interval prolongation in pa ...
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Journal articleEmerg Microbes Infect · 2019
Genotypic diversity and fluconazole susceptibility of 82 Cryptococcus neoformans and Cryptococcus gattii isolates from 60 renal transplant recipients in Brazil were characterized. Clinical characteristics of the patients and prognostic factors were analyse ...
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Journal articleBr J Anaesth · December 2018
BACKGROUND: The African Surgical Outcomes Study (ASOS) showed that surgical patients in Africa have a mortality twice the global average. Existing risk assessment tools are not valid for use in this population because the pattern of risk for poor outcomes ...
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Journal articlemBio · October 23, 2018
Pathogenic species of Cryptococcus cause hundreds of thousands of deaths annually. Considerable phenotypic variation is exhibited during infection, including increased capsule size, capsule shedding, giant cells (≥15 μm), and micro cells (≤1 μm). We examin ...
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Journal articleTranspl Infect Dis · October 2018
Invasive mold disease in thoracic organ transplant recipients is a well-recognized complication, but the long-term persistence of molds within the human body and evasion of host defenses has not been well-described. We present 2 cases of invasive mold dise ...
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Journal articleJ Infect Dis · August 24, 2018
Cryptococcal meningitis (CM) has emerged as the most common life-threatening fungal meningitis worldwide. Current management involves a sequential, longitudinal regimen of antifungals; despite a significant improvement in survival compared with uniform mor ...
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Journal articleMycoses · August 2018
Data regarding treatment of rare invasive fungal diseases (IFDs) are scarce. We documented the efficacy and safety of isavuconazole for treatment of uncommonly diagnosed IFDs. VITAL was a single-arm, international, open-label study evaluating the efficacy ...
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Journal articleTranspl Infect Dis · August 2018
BACKGROUND: Cryptococcosis is the second most common cause of invasive fungal infections in renal transplant recipients in many countries, and data on graft outcome after treatment for this infection is lacking in less-resourced health care settings. METHO ...
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Journal articleAntimicrob Agents Chemother · August 2018
Cryptococcal meningitis (CM), caused primarily by Cryptococcus neoformans, is uniformly fatal if not treated. Treatment options are limited, especially in resource-poor geographical regions, and mortality rates remain high despite current therapies. Here w ...
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Journal articleBMC Infect Dis · July 18, 2018
BACKGROUND: Blastomycosis is an endemic mycosis in North America that is caused by the dimorphic fungus Blastomyces dermatitidis. The illness is a systemic disease with a wide variety of pulmonary and extra-pulmonary manifestations. The initial presentatio ...
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Journal articleJ Fungi (Basel) · July 3, 2018
Cryptococcal infections burden the immunocompromised population with unacceptably high morbidity and mortality. This population includes HIV-infected individuals and those undergoing organ transplants, as well as seemingly immunocompetent patients (non-HIV ...
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Journal articleMycoses · July 2018
Invasive fungal disease (IFD) confers a substantial risk for morbidity and mortality to immunocompromised patients. Invasive aspergillosis (IA) is the most common IFD caused by moulds but the prevalence of other rare mould diseases, such as mucormycosis, h ...
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Journal articleMycoses · July 2018
The optimal approach to treat invasive fungal disease (IFD) caused by more than one fungal species is unknown. We documented the efficacy and safety of isavuconazole for treatment of IFDs caused by more than one fungal species. VITAL was a single-arm, inte ...
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Journal articleBiofouling · July 2018
Candida albicans is a leading cause of catheter-associated urinary tract infections and elimination of these biofilm-based infections without antifungal agents would constitute a significant medical advance. A novel urinary catheter prototype that utilizes ...
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Journal articleMol Microbiol · June 2018
The ability of the human fungal pathogen Cryptococcus neoformans to adapt to variable copper (Cu) environments within the host is key for successful dissemination and colonization. During pulmonary infection, host alveolar macrophages compartmentalize Cu i ...
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Journal articlePLoS Pathog · May 2018
The pathogenic fungus Cryptococcus neoformans exhibits morphological changes in cell size during lung infection, producing both typical size 5 to 7 μm cells and large titan cells (> 10 μm and up to 100 μm). We found and optimized in vitro conditions that p ...
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Journal articleClin Infect Dis · March 5, 2018
We report the presentation and management of 17 cases of Exophiala dermatitidis and Rhodotorula mucilaginosa bloodstream infections caused by a compounded parenteral medication at an oncology clinic. Twelve patients were asymptomatic. All central venous ca ...
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Journal articleJ Med Microbiol · February 2018
PURPOSE: Previous epidemiological and cost studies of fungal meningitis have largely focused on single pathogens, leading to a poor understanding of the disease in general. We studied the largest and most diverse group of fungal meningitis patients to date ...
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Journal articleJ Antimicrob Chemother · January 1, 2018
The tolerability of available antifungal agents is essential to the final outcome of the management of invasive mycoses. There are limited classes of antifungal agents for use, and they can have serious direct toxicities and/or drug-drug interactions. In t ...
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Journal articleMem Inst Oswaldo Cruz · 2018
Cryptococcal meningitis is the most common central nervous system infection in the world today. It occurs primarily, but not exclusively, in immunocompromised individuals and despite substantial improvement in management of clinical events like AIDS, the n ...
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Journal articleNat Rev Drug Discov · September 2017
Invasive fungal infections continue to appear in record numbers as the immunocompromised population of the world increases, owing partially to the increased number of individuals who are infected with HIV and partially to the successful treatment of seriou ...
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Journal articleClin Chest Med · September 2017
Immunocompromised patients are at high risk for invasive fungal infections (IFIs); although Aspergillus remains the most common IFI caused by molds, other fungi, such as Mucorales, dematiaceous molds, and Fusarium spp, are being seen with increasing freque ...
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Journal articleGenetics · September 2017
Cryptococcus neoformans var. grubii is the causative agent of cryptococcal meningitis, a significant source of mortality in immunocompromised individuals, typically human immunodeficiency virus/AIDS patients from developing countries. Despite the worldwide ...
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Journal articleJ Infect Dis · August 15, 2017
The emergence of drug-resistant fungi poses a major threat to human health. Despite advances in preventive, diagnostic, and therapeutic interventions, resistant fungal infections continue to cause significant morbidity and mortality in patients with compro ...
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Journal articlemBio · July 25, 2017
The disaccharide trehalose is critical to the survival of pathogenic fungi in their human host. Trehalose-6-phosphate synthase (Tps1) catalyzes the first step of trehalose biosynthesis in fungi. Here, we report the first structures of eukaryotic Tps1s in c ...
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Journal articleGenome Res · July 2017
Cryptococcus neoformans is an opportunistic fungal pathogen that causes approximately 625,000 deaths per year from nervous system infections. Here, we leveraged a unique, genetically diverse population of C. neoformans from sub-Saharan Africa, commonly iso ...
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Journal articleMicrobiol Mol Biol Rev · June 2017
Invasive fungal infections cause significant morbidity and mortality in part due to a limited antifungal drug arsenal. One therapeutic challenge faced by clinicians is the significant host toxicity associated with antifungal drugs. Another challenge is the ...
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Journal articleAntimicrob Agents Chemother · June 2017
Cryptococcal meningoencephalitis is a rapidly lethal infection in immunocompromised patients. Induction regimens are usually administered for 2 weeks. The shortest effective period of induction therapy with liposomal amphotericin B (LAMB) is unknown. The p ...
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Journal articleMicrobiol Spectr · June 2017
Fungi must meet four criteria to infect humans: growth at human body temperatures, circumvention or penetration of surface barriers, lysis and absorption of tissue, and resistance to immune defenses, including elevated body temperatures. Morphogenesis betw ...
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Journal articleCurrent Clinical Microbiology Reports · June 1, 2017
Purpose of Review: In this review, we discuss the old and new tools available to the clinical mycology laboratory, the “growing pains” in their use, and how they impact patient care and aim to recommend what clinical mycology laboratories need to do to suc ...
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Journal articlemBio · March 7, 2017
The pathogenic species of Cryptococcus are a major cause of mortality owing to severe infections in immunocompromised as well as immunocompetent individuals. Although antifungal treatment is usually effective, many patients relapse after treatment, and in ...
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Journal articleVirulence · February 17, 2017
With an increasing immunocompromised population which is linked to invasive fungal infections, it is clear that our present 3 classes of antifungal agents may not be sufficient to provide optimal management to these fragile patients. Furthermore, with wide ...
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Journal articleJ Clin Neurosci · February 2017
Intraspinal abscesses (ISAs) are rare lesions that are often neurologically devastating. Current treatment paradigms vary widely including early surgical decompression, drainage, and systemic antibiotics, delayed surgery, and sole medical management. The N ...
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Journal articleJ Perinatol · February 2017
OBJECTIVE: The aim of this study was to identify risk factors for early-onset group B Streptococcus (EOGBS) disease in neonates of mothers with negative antenatal screening. STUDY DESIGN: We performed a retrospective cohort study of neonates born to mother ...
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Journal articleMethods Mol Biol · 2017
Multilocus sequence typing (MLST) has become the preferred method for genotyping many biological species. It can be used to identify major phylogenetic clades, molecular groups, or subpopulations of a species, as well as individual strains or clones. Howev ...
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Journal articleOpen Forum Infect Dis · 2017
We report 2 cases of disseminated cryptococcosis with central nervous system involvement in patients with chronic lymphoid malignancies occurring within 1 month of starting on ibrutinib. Characteristically, in both cases, no inflammation was seen in the ce ...
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Journal articlemSphere · 2017
Cryptococcosis is a potentially lethal disease of humans/animals caused by Cryptococcus neoformans and Cryptococcus gattii. Distinction between the two species is based on phenotypic and genotypic characteristics. Recently, it was proposed that C. neoforma ...
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Journal articleOpen Forum Infectious Diseases · January 1, 2017
We report 2 cases of disseminated cryptococcosis with central nervous system involvement in patients with chronic lymphoid malignancies occurring within 1 month of starting on ibrutinib. Characteristically, in both cases, no inflammation was seen in the ce ...
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Journal articlePLoS One · 2017
Candidaemia is a bloodstream infection caused by Candida species that primarily affects specific groups of at-risk patients. Because only small candidaemia patient cohorts are available, classical genome wide association cannot be used to identify Candida ...
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Journal articleBioconjug Chem · December 21, 2016
A strategy has been devised for increasing the cellular selectivity of membrane-disrupting antibiotics based on the attachment of a facially amphiphilic sterol. Using Amphotericin B (AmB) as a prototype, covalent attachment of cholic acid bound to a series ...
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Journal articleCell Rep · December 6, 2016
Fungal infections are major causes of morbidity and mortality, especially in immunocompromised individuals. The innate immune system senses fungal pathogens through Syk-coupled C-type lectin receptors (CLRs), which signal through the conserved immune adapt ...
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Journal articleCurr Opin Infect Dis · December 2016
PURPOSE OF REVIEW: Overall, 50-70% of patients with cryptococcal meningitis have raised intracranial pressure (ICP). Multiple international treatment guidelines recommend repeated therapeutic lumbar punctures as adjunctive management. Here, we review the r ...
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Journal articleMedical Mycology Case Reports · December 1, 2016
Cryptococcosis is a fungal disease which has been characterized by its identified risk groups. There are many risk factors identified. We present a surprising four cases of disseminated cryptococcosis in intravenous drug abuse (IVDA) patients in a short pe ...
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Journal articleJ Antimicrob Chemother · November 2016
Compared with major invasive mycoses such as aspergillosis and candidiasis, the antifungal stewardship management strategies of other fungal diseases have different opportunities and considerations. Cryptococcosis, fusariosis and mucormycosis are globally ...
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Journal articleJ Antimicrob Chemother · October 2016
BACKGROUND: Although echinocandins are generally well tolerated, there is little information on the frequency with which renal and hepatic adverse effects occur during use of micafungin or other parenteral antifungal (PAF) agents in clinical practice. METH ...
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Journal articleCrit Care Nurse · October 2016
HIV infection has progressed from an acute, terminal disease to a chronic illness with cardiovascular disease as the leading cause of death among persons living with HIV. As persons living with HIV infection continue to become older, traditional risk facto ...
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Journal articleBMC Genomics · September 2, 2016
BACKGROUND: Copy number variants (CNVs) are a class of structural variants (SVs) and are defined as fragments of DNA that are present at variable copy number in comparison with a reference genome. Recent advances in bioinformatics methodologies and sequenc ...
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Journal articleClin Infect Dis · August 1, 2016
BACKGROUND: Invasive fungal diseases (IFD) caused by Cryptococcus and dimorphic fungi are associated with significant morbidity and mortality. Isavuconazole (ISAV) is a novel, broad-spectrum, triazole antifungal agent (IV and by mouth [PO]) developed for t ...
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Journal articleLancet Infect Dis · July 2016
BACKGROUND: Mucormycosis is an uncommon invasive fungal disease with high mortality and few treatment options. Isavuconazole is a triazole active in vitro and in animal models against moulds of the order Mucorales. We assessed the efficacy and safety of is ...
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Journal articleProc Natl Acad Sci U S A · June 28, 2016
Trehalose is a disaccharide essential for the survival and virulence of pathogenic fungi. The biosynthesis of trehalose requires trehalose-6-phosphate synthase, Tps1, and trehalose-6-phosphate phosphatase, Tps2. Here, we report the structures of the N-term ...
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Journal articleCell Host Microbe · June 8, 2016
Quorum sensing (QS) is a bacterial communication mechanism in which secreted signaling molecules impact population function and gene expression. QS-like phenomena have been reported in eukaryotes with largely unknown contributing molecules, functions, and ...
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Journal articleCurr Clin Microbiol Rep · June 2016
The development of severe fungal infections has long been associated with traditional risk factors such as profound immunosuppression, yet it remains challenging to understand why under similar conditions only some patients will develop these infections wh ...
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Journal articleInfect Dis Clin North Am · March 2016
Cryptococcosis is an invasive mycosis caused by pathogenic encapsulated yeasts in the genus Cryptococcus. Cryptococcus gained prominence as a pathogen capable of widespread disease outbreaks in vulnerable populations. We have gained insight into the pathob ...
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Journal articleSci Transl Med · January 20, 2016
Systemic Candida albicans infection causes high morbidity and mortality and is now the leading cause of nosocomial bloodstream infection in the United States. Neutropenia is a major risk factor for poor outcome in infected patients; however, the molecular ...
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Journal articlemSphere · 2016
The opportunistic pathogen Cryptococcus neoformans causes fungal meningoencephalitis in immunocompromised individuals. In previous studies, we found that the Hap complex in this pathogen represses genes encoding mitochondrial respiratory functions and tric ...
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Journal articleCase Rep Infect Dis · 2016
A 45-year-old male with a prosthetic aortic valve presented to the hospital with several months of generalized malaise. On admission, he was noted to have anemia of unclear etiology and subsequently became febrile with multiple blood cultures growing Lacto ...
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Journal articleBioconjug Chem · October 21, 2015
A strategy is introduced for enhancing the cellular selectivity of Amphotericin B (AmB) and other classes of membrane-disrupting agents. This strategy involves attaching the agent to a molecular umbrella to minimize the disruptive power of aggregated forms ...
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Journal articlemBio · September 29, 2015
UNLABELLED: The human fungal pathogen Cryptococcus neoformans is capable of infecting a broad range of hosts, from invertebrates like amoebas and nematodes to standard vertebrate models such as mice and rabbits. Here we have taken advantage of a zebrafish ...
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Journal articleMed Mycol Case Rep · September 2015
Scedosporium apiospermum is an increasingly appreciated pathogen in immunosuppressed patients. We present a case of S. apiospermum endocarditis in a 70-year-old male who had undergone orthotopic heart transplant. Echocardiogram demonstrated a 1.4 cm tricus ...
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Journal articleMol Ecol · July 2015
Cryptococcus neoformans var. grubii (Cng) is the most common cause of fungal meningitis, and its prevalence is highest in sub-Saharan Africa. Patients become infected by inhaling airborne spores or desiccated yeast cells from the environment, where the fun ...
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Journal articleTrials · June 17, 2015
BACKGROUND: Cryptococcal meningitis (CM) is a leading cause of mortality among HIV-infected individuals in Africa. Poor outcomes from conventional antifungal therapies, unavailability of flucytosine, and difficulties administering 14 days of amphotericin B ...
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Journal articleExpert Rev Anti Infect Ther · June 2015
Prior to 1981, treatment options for invasive fungal infections were limited and associated with significant toxicities. The introduction of ketoconazole marked the beginning of an era of dramatic improvements over previous therapies for non-life-threateni ...
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Journal articleFungal Genet Biol · May 2015
Cryptococcosis has evolved into a major invasive fungal disease over the last century. Its primary epidemiology has been focused on three major outbreaks of disease that reflects both changing environmental exposures and growth of host risk factors. The mo ...
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Journal articleEur J Clin Microbiol Infect Dis · May 2015
The induction of host defense against Candida species is initiated by recognition of the fungi by pattern recognition receptors and activation of downstream pathways that produce inflammatory mediators essential for infection clearance. In this study, we p ...
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Journal articleJ Pediatr Hematol Oncol · April 2015
We present the case of an adolescent with mucor rhinosinusitis diagnosed concomitantly with acute lymphoblastic leukemia at a hospital in Tegucigalpa, Honduras. We also discuss the challenges faced in the dual management of hematologic malignancies and inv ...
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Journal articleAntimicrob Agents Chemother · April 2015
Candida infective endocarditis is a rare disease with a high mortality rate. Our understanding of this infection is derived from case series, case reports, and small prospective cohorts. The purpose of this study was to evaluate the clinical features and u ...
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Journal articleJ Clin Microbiol · April 2015
Recent changes in the Fungal Code of Nomenclature and developments in molecular phylogeny are about to lead to dramatic changes in the naming of medically important molds and yeasts. In this article, we present a widely supported and simple proposal to pre ...
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Journal articlePharmacotherapy · April 2015
The American College of Clinical Pharmacy (ACCP) previously published position statements on collaborative drug therapy management (CDTM) in 1997 and 2003. Since 2003, significant federal and state legislation addressing CDTM has evolved and expanded throu ...
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Journal articleInfectious Diseases in Clinical Practice · March 12, 2015
Background Cryptococcus gattii is an environmental pathogenic yeast that produces disease in the skin, the respiratory tract, and the central nervous system of both immunocompromised and immunocompetent hosts. The incidence of C. gattii disease is increasi ...
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Journal articleFungal Genet Biol · February 2015
Multilocus sequence typing (MLST) has become the preferred method for genotyping many biological species, and it is especially useful for analyzing haploid eukaryotes. MLST is rigorous, reproducible, and informative, and MLST genotyping has been shown to i ...
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Journal articleBMC Immunol · November 19, 2014
BACKGROUND: The extracellular domains of cytokine receptors are released during inflammation, but little is known about the shedding of Toll-like receptors (TLR) and whether they can be used as diagnostic biomarkers. METHODS: The release of sTLR2 and sTLR4 ...
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Journal articleClin Infect Dis · November 15, 2014
Changes in antineoplastic treatments and transplant practices are driving shifts in the epidemiology of invasive fungal diseases (IFDs). Patients with acute myelogenous leukemia (AML) and those undergoing bone marrow transplant (BMT) are at greatest risk f ...
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Journal articleCold Spring Harb Perspect Med · November 10, 2014
A review is given of melanized fungi involved in human infection, including species forming budding cells and strictly filamentous representatives. Classically, they are known as "phaeoid" or "dematiaceous" fungi, and, today, agents are recognized to belon ...
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Journal articleCold Spring Harb Perspect Med · November 3, 2014
Few among the millions of fungal species fulfill four basic conditions necessary to infect humans: high temperature tolerance, ability to invade the human host, lysis and absorption of human tissue, and resistance to the human immune system. In previously ...
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Journal articleAntimicrob Agents Chemother · October 2014
Posaconazole tablets, a new oral formulation of posaconazole, can be effective when given as antifungal prophylaxis to neutropenic patients at high risk for invasive fungal infection (e.g., those with acute myelogenous leukemia or myelodysplastic syndrome) ...
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Journal articleAntimicrobial Agents and Chemotherapy · October 1, 2014
Posaconazole tablets, a new oral formulation of posaconazole, can be effective when given as antifungal prophylaxis to neutropenic patients at high risk for invasive fungal infection (e.g., those with acute myelogenous leukemia or myelodysplastic syndrome) ...
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Journal articleNat Commun · September 8, 2014
Candidaemia is the fourth most common cause of bloodstream infection, with a high mortality rate of up to 40%. Identification of host genetic factors that confer susceptibility to candidaemia may aid in designing adjunctive immunotherapeutic strategies. He ...
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Journal articleBioconjug Chem · August 20, 2014
A tetrawalled and an octawalled molecular umbrella conjugate of amphotericin B (AmB) have been synthesized. Both conjugates exhibit high water solubility, a low tendency to aggregate, negligible hemolytic activity at 100 μM, and an ability to release a der ...
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Journal articleClin Infect Dis · August 15, 2014
BACKGROUND: Vitamin D deficiency is associated with impaired immune responses and increased susceptibility to a number of intracellular pathogens in individuals infected with human immunodeficiency virus (HIV). It is not known whether such an association e ...
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Journal articlePharmacotherapy · July 2014
Antifungal catheter lock therapy (AfLT) with liposomal amphotericin B has been used in the treatment of pediatric central line infections caused by Candida species; however, reports describing the use of liposomal amphotericin B lock therapy in the adult h ...
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Journal articleCancer Med · June 2014
In preventing invasive fungal disease (IFD) in patients with acute myelogenous leukemia (AML) or myelodysplastic syndrome (MDS), clinical trials demonstrated efficacy of posaconazole over fluconazole and itraconazole. However, effectiveness of posaconazole ...
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Journal articleMed Mycol · May 2014
Candida albicans can cause candidemia in neutropenic and critically ill patients and oropharyngeal candidiasis in human immunodeficiency virus (HIV)-positive patients with low CD4(+) counts. Because all patients at risk do not develop Candida infections, i ...
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Journal articleJ Clin Invest · May 2014
The increase in immunosuppressed patient populations has correlated with a rise in clinical fungal infections, including cryptococcosis. Patient outcome following Cryptococcus infection is linked to initial fungal burden in cerebrospinal fluid (CSF) and fu ...
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Journal articleEur J Clin Microbiol Infect Dis · May 2014
Autophagy has been demonstrated to play an important role in the immunity against intracellular pathogens, but very little is known about its role in the host defense against fungal pathogens such as Candida albicans. Therefore, the role of autophagy for t ...
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Journal articleProc Natl Acad Sci U S A · April 8, 2014
Endotoxemia is caused by excessive inflammation, but the immune system has various mechanisms to avoid collateral organ damage in endotoxemia. A handful of reports have shown that innate immune responses are suppressed by the adaptive immune system. Howeve ...
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Journal articleInt J Infect Dis · April 2014
OBJECTIVES: To assess the epidemiological pattern of Candida bloodstream infection (BSI) over an 8-year period (2002-2009) in King Abdulaziz Medical City, western Saudi Arabia. METHOD: A retrospective chart review was performed. RESULTS: A total of 258 BSI ...
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Journal articlePLoS Genet · April 2014
Cryptococcus neoformans is a pathogenic basidiomycetous yeast responsible for more than 600,000 deaths each year. It occurs as two serotypes (A and D) representing two varieties (i.e. grubii and neoformans, respectively). Here, we sequenced the genome and ...
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Journal articlemBio · February 4, 2014
UNLABELLED: Cryptococcus neoformans is the leading cause of fungal meningitis worldwide. Previous studies have characterized the cryptococcal transcriptome under various stress conditions, but a comprehensive profile of the C. neoformans transcriptome in t ...
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Journal articleMbio · February 4, 2014
Cryptococcus neoformans is the leading cause of fungal meningitis worldwide. Previous studies have characterized the cryptococcal transcriptome under various stress conditions, but a comprehensive profile of the C. neoformans transcriptome in the human hos ...
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Journal articleInfect Immun · February 2014
Cryptococcus neoformans is an opportunistic fungal pathogen that initiates infection following inhalation. As a result, the pulmonary immune response provides a first line of defense against C. neoformans. Surfactant protein D (SP-D) is an important regula ...
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Journal articlemBio · January 28, 2014
UNLABELLED: Cryptococcal meningoencephalitis is an urgent global health problem. Induction regimens using 14 days of amphotericin B deoxycholate (dAmB) are considered the standard of care but may not be suitable for resource-poor settings. We investigated ...
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Journal articleMbio · January 28, 2014
Cryptococcal meningoencephalitis is an urgent global health problem. Induction regimens using 14 days of amphotericin B deoxycholate (dAmB) are considered the standard of care but may not be suitable for resource-poor settings. We investigated the efficacy ...
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Journal articleExpert Opinion on Orphan Drugs · January 1, 2014
Introduction: Cryptococcal meningoencephalitis (CM) is a rare infection in pediatric patients, which is associated with substantial morbidity and mortality. Since symptoms of this infection are nonspecific, the diagnosis relies on risk assessment and labor ...
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Journal article · January 1, 2014
Fungal infections of the central nervous system (CNS) are life-threatening conditions that generally involve an immunosuppressive event. Many of these infections occur sporadically in the course of a serious underlying disease. However, outbreaks of CNS fu ...
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Journal articleEur J Clin Microbiol Infect Dis · December 2013
Recent studies point to a dual role for galectin-3 as both a circulating damage-associated molecular pattern and a cell membrane-associated pattern recognition receptor. The aim of this study was to assess the potential of circulating galectin-3 for discri ...
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Journal articleExpert Opin Pharmacother · December 2013
INTRODUCTION: Invasive fungal infections (IFIs) pose significant morbidity and are often life-threatening to many high-risk patients. Timely diagnosis and treatment of these infections with optimal therapy is imperative. AREAS COVERED: Advances have been m ...
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Journal articleJ Clin Invest · December 2013
Systemic Candida albicans infection causes high morbidity and mortality and is associated with neutropenia; however, the roles of other innate immune cells in pathogenesis are poorly defined. Here, using a mouse model of systemic candidiasis, we found that ...
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Journal articleEukaryot Cell · November 2013
Cryptococcus neoformans and C. gattii cause meningoencephalitis and are an increasing human health threat. These pathogenic Cryptococcus species are neurotropic and persist in the cerebrospinal fluid (CSF) of the mammalian host during infection. In order t ...
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Journal articleTranspl Infect Dis · August 2013
We describe a case of pericarditis and large pericardial effusion in a 63-year-old African-American man undergoing autologous hematopoietic stem cell transplant for multiple myeloma. Pericardial tissue biopsy demonstrated fibrinous pericarditis, and immuno ...
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Journal articleJ Infect Dis · July 15, 2013
BACKGROUND: Cryptococcal meningoencephalitis is a lethal infection with relatively few therapeutic options. The optimal dosage of liposomal amphotericin B (LAmB) alone or in combination with flucytosine is not known. METHODS: A murine model of cryptococcal ...
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Journal articleClin Infect Dis · June 2013
BACKGROUND: Fluconazole (FLC) resistance is common in C. glabrata and echinocandins are often used as first-line therapy. Resistance to echinocandin therapy has been associated with FKS1 and FKS2 gene alterations. METHODS: We reviewed records of all patien ...
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Journal articleAntimicrob Agents Chemother · June 2013
The goal of this study was to determine the degree to which the persistence of cryptococcosis, overall 1-year mortality, and 1-year mortality due to cryptococcosis were influenced by initial antifungal treatment regimen in a cohort of adults with cryptococ ...
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Journal articleAntimicrob Agents Chemother · June 2013
Fluconazole is frequently the only antifungal agent that is available for induction therapy for cryptococcal meningitis. There is relatively little understanding of the pharmacokinetics and pharmacodynamics (PK-PD) of fluconazole in this setting. PK-PD rel ...
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Journal articleCrit Care Nurse · April 2013
According to estimates, 1.2 million Americans are infected with human immuno deficiency virus (HIV). Because of antiretroviral therapy, persons who have HIV infection or have progressed to AIDS are living longer. As a result, the likelihood that they will ...
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Journal articleJOM · April 1, 2013
The delivery of amphotericin B, a pharmacologic agent with activity against a broad spectrum of fungi as well as against parasitic protozoa, has been complicated by the fact that amphotericin B exhibits poor solubility in aqueous solutions at physiologic p ...
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Journal articleCurr Med Res Opin · April 2013
BACKGROUND: Morbidity and mortality remain high for patients with invasive fungal infections (IFIs) despite an increasing number of antifungals and other treatments. Many studies indicate that delayed or inaccurate diagnosis and treatment are major causes ...
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Journal articleCurr Med Res Opin · January 22, 2013
Program overview The clinical care of seriously ill patients can often be complicated by invasive fungal infections that substantially increase morbidity and mortality. Early identification of these infections is paramount to successful clinical outcomes. ...
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Journal articleOphthalmic Plast Reconstr Surg · 2013
An 85-year-old, immunocompetent man was referred to the authors due to the presence of an enlarging, pigmented mass of the conjunctiva concerning for a conjunctival melanoma. Wide excision of the mass revealed a pigmented or "dematiaceous" fungus. He was t ...
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Journal articleNat Commun · 2013
Candida albicans is the most common human fungal pathogen causing mucosal and systemic infections. However, human antifungal immunity remains poorly defined. Here by integrating transcriptional analysis and functional genomics, we identified Candida-specif ...
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Journal articlePLoS One · 2013
The object of this study was to test whether posaconazole, a broad-spectrum antifungal agent inhibiting ergosterol biosynthesis, exhibits synergy with the β-1,3 glucan synthase inhibitor caspofungin or the calcineurin inhibitor FK506 against the human fung ...
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Journal articlePLoS Pathog · 2013
Cryptococcus neoformans is the most common cause of fungal meningitis, with high mortality and morbidity. The reason for the frequent occurrence of Cryptococcus infection in the central nervous system (CNS) is poorly understood. The facts that human and an ...
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Journal articleMed Mycol · November 2012
Infections with Candida spp. have different manifestations in humans, ranging from mucosal to bloodstream and deep-seated disseminated infections. Immunocompromised patients have increased susceptibility to these types of infections, due to reduced capacit ...
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Journal articlePharmacotherapy · October 2012
STUDY OBJECTIVE: To determine the true institutional cost of treating invasive fungal infections in light of recent advances in diagnostic techniques and antifungal therapies for both treatment and prophylaxis of these infections. DESIGN: Economic analysis ...
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Journal articleCell Microbiol · October 2012
Cryptococcus neoformans penetration into the central nervous system (CNS) requires traversal of the blood-brain barrier that is composed of a single layer of human brain microvascular endothelial cells (HBMEC), but the underlying mechanisms of C. neoforman ...
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Journal articleAm J Pathol · October 2012
Deletions of cryptococcal PIK1, RUB1, and ENA1 genes independently rendered defects in yeast survival in human CSF and within macrophages. We evaluated virulence potential of these genes by comparing wild-type Cryptococcus neoformans strain H99 with deleta ...
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Journal articleEur J Clin Microbiol Infect Dis · September 2012
Species of Candida frequently cause life-threatening infections in neonates, transplant and intensive care unit (ICU) patients, and others with compromised host defenses. The successful management of systemic candidiasis depends upon early, rapid diagnosis ...
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Journal articleMed Mycol · August 2012
Optimal clinical care and clinical investigation of patients with mucormycosis are limited by absence of controlled trials, and absence of well-defined predictors of mortality or clinical response. The Deferasirox-AmBisome Therapy for mucormycosis (DEFEAT ...
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Journal articleInfect Immun · July 2012
Concurrent with the global escalation of the AIDS pandemic, cryptococcal infections are increasing and are of significant medical importance. Furthermore, Cryptococcus neoformans has become a primary human pathogen, causing infection in seemingly healthy i ...
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Journal articleMycopathologia · June 2012
Cryptococcologists meet every 3 years to present their new research data and discuss the current state of cryptococcosis therapy at the International Conference on Cryptococcus and Cryptococcosis (ICCC). The ICCC has served as a unique forum where mycologi ...
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Journal articleJ Infect Dis · March 15, 2012
BACKGROUND: Candidemia is a severe invasive fungal infection with high mortality. Recognition of Candida species is mediated through pattern recognition receptors such as Toll-like receptors (TLRs). This study assessed whether genetic variation in TLR sign ...
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Journal articleEur J Clin Microbiol Infect Dis · March 2012
Candida is one of the leading causes of sepsis, and an effective host immune response to Candida critically depends on the cytokines IL-1β and IL-18, which need caspase-1 cleavage to become bioactive. Caspase-12 has been suggested to inhibit caspase-1 acti ...
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Journal articleCurrent Fungal Infection Reports · March 1, 2012
Restoration of pathogen-specific immunity as a result of highly active antiretroviral therapy or reduction of immunosuppression in solid-organ transplant recipients can result in a destructive inflammatory response known as the immune reconstitution inflam ...
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Journal articleJ Antimicrob Chemother · March 2012
OBJECTIVES: Host iron availability is fundamental to mucormycosis pathogenesis. The combination of liposomal amphotericin B (LAmB) and deferasirox iron chelation therapy synergistically improved survival in diabetic mice with mucormycosis. To determine the ...
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Journal articleClin Infect Dis · February 15, 2012
BACKGROUND: Candida bloodstream infections cause significant morbidity and mortality among hospitalized patients. Although clinical and microbiological factors affecting prognosis have been identified, the impact of genetic variation in the innate immune ...
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Journal articleAm J Health Syst Pharm · January 15, 2012
PURPOSE: The results of a pharmacoeconomic study of the cost-effectiveness of posaconazole versus fluconazole in preventing invasive fungal infections (IFIs) in patients with graft-versus-host disease (GVHD) are reported. METHODS: The results of a randomiz ...
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Journal articlePLoS One · 2012
BACKGROUND: Invasive candidiasis (IC) is a devastating disease. While prompt antifungal therapy improves outcomes, empiric treatment based on the presence of fever has little clinical impact. Β-D-Glucan (BDG) is a fungal cell wall component detectable in t ...
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Journal articlePLoS One · 2012
The molecular chaperone Hsp90 orchestrates regulatory circuitry governing fungal morphogenesis, biofilm development, drug resistance, and virulence. Hsp90 functions in concert with co-chaperones to regulate stability and activation of client proteins, many ...
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Journal articlePLoS One · 2012
BACKGROUND: A mouse brain transmigration assessment (MBTA) was created to investigate the central nervous system (CNS) pathogenesis of cryptococcal meningoencephalitis. METHODOLOGY/PRINCIPAL FINDINGS: Two cryptococcal mutants were identified from a pool of ...
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Journal articlePLoS One · 2012
BACKGROUND: The Infectious Disease Society of America (IDSA) 2010 Clinical Practice Guidelines for the management of cryptococcosis outlined three key populations at risk of disease: (1) HIV-infected, (2) transplant recipient, and (3) HIV-negative/non-tran ...
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Journal articlemBio · 2012
Cryptococcosis is the leading invasive fungal infection in the world today. Over the past century, the causative agents, Cryptococcus neoformans and Cryptococcus gattii, have risen from the status of medical curiosities to common but life-threatening centr ...
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Journal articlePLoS One · 2012
Ubiquitination is a reversible protein modification that influences various cellular processes in eukaryotic cells. Deubiquitinating enzymes remove ubiquitin, maintain ubiquitin homeostasis and regulate protein degradation via the ubiquitination pathway. C ...
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Journal articleAm J Med · January 2012
Outcomes of fungal infections in immunocompromised individuals depend on a complex interplay between host and pathogen factors, as well as treatment modalities. Problems occur when host responses to an infection are either too weak to effectively help erad ...
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Journal articlePediatr Infect Dis J · December 2011
Cryptococcus gattii is a known, emerging infectious disease pathogen predominantly in the Pacific Northwest, the United States, and British Columbia, Canada. We report a case of an immunocompetent adolescent from New England who had severe pulmonary and ce ...
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Journal articleBMC Res Notes · November 2, 2011
BACKGROUND: Ertapenem is a once-daily broad spectrum carbapenem that is increasingly used to treat polymicrobial osteomyelitis due to diabetic foot and traumatic wound infections. However, limited data exists on ertapenem use for osteomyelitis. This study ...
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Journal articlePLoS Pathog · November 2011
Apoptosis is a form of programmed cell death critical for development and homeostasis in multicellular organisms. Apoptosis-like cell death (ALCD) has been described in several fungi, including the opportunistic human pathogen Cryptococcus neoformans. In a ...
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Journal articleBMC Genomics · October 27, 2011
BACKGROUND: The adaptation of pathogenic fungi to the host environment via large-scale genomic changes is a poorly characterized phenomenon. Cryptococcus neoformans is the leading cause of fungal meningoencephalitis in HIV/AIDS patients, and we recently di ...
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Journal articleJ Infect Dis · October 1, 2011
BACKGROUND: Candidemia is an important cause of morbidity and mortality in critically ill patients or patients undergoing invasive treatments. Dectin-1 is the main β-glucan receptor, and patients with a complete deficiency of either dectin-1 or its adaptor ...
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Journal articleMicrobes Infect · October 2011
Infectious fungi are among a broad group of microbial pathogens that has and continues to emerge concomitantly due to the global AIDS pandemic as well as an overall increase of patients with compromised immune systems. In addition, many pathogens have been ...
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Journal articleInvest Ophthalmol Vis Sci · September 21, 2011
PURPOSE: To establish polyhexamethylene biguanide (PHMB) as an effective treatment for Aspergillus keratitis in a novel murine model. To determine the ability of the calcineurin inhibitors tacrolimus (FK506) and cyclosporine A (CSA) to enhance the activity ...
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Journal articleExpert Opin Emerg Drugs · September 2011
Introduction: Morbidity and mortality associated with invasive fungal infections (IFIs) remains unacceptably high. Such diseases represent a substantial burden to the healthcare system. New options are needed to address antifungal resistance in existing an ...
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Journal articleJ Clin Microbiol · August 2011
One potential limitation of DNA-based molecular diagnostic tests for Candida bloodstream infection (BSI) is organism burden, which is not sufficiently characterized. We hypothesized that the number of CFU per milliliter (CFU/ml) present in an episode of Ca ...
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Journal articleCurrent Opinion in Infectious Diseases · August 1, 2011
Purpose of review Azoles are among the oldest class of antifungals, and they continue to be integral to the treatment of invasive fungal infections. This review examines the place of azoles in the treatment of invasive candidiasis and aspergillosis, and th ...
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Journal articleMycoses · May 2011
Immune reconstitution syndrome (IRS) is an increasingly common condition that has been described in immunosuppressed individuals once immune function is restored. In this case, we describe a patient who had a renal transplant and subsequently developed pul ...
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Journal articleAm J Infect Control · May 2011
BACKGROUND: Patients with a solid organ transplant (SOTs) and hematopoietic stem cell or bone marrow transplants (HSC/BMTs) are at risk of contracting invasive fungal infections (IFIs). Data on the economic burden of IFIs in the United States are sparse. M ...
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Journal articleMed Mycol · February 2011
Invasive candidiasis is associated with high mortality, particularly in adults. Retrospective studies show that shorter times to treatment are correlated with a lower risk of death. A number of factors can be used to predict which patients would benefit fr ...
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Journal articleExpert Opin Pharmacother · February 2011
INTRODUCTION: Invasive fungal infections continue to cause significant morbidity and mortality in immunocompromised hosts. From more than half a million deaths from cryptococcosis in sub-Saharan Africa to an unchanging death rate from invasive candidiasis, ...
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Journal articlePLoS One · January 13, 2011
Human and animal cryptococcosis due to an unusual molecular type of Cryptococcus gattii (VGII) emerged recently on Vancouver Island, Canada. Unlike C. neoformans, C. gattii causes disease mainly in immunocompetent hosts, despite producing a similar suite o ...
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Journal article · January 1, 2011
Invasive fungal infections continue to cause significant morbidity and mortality among hospitalized patients. In particular, recent studies indicate an increase in the incidence of mould infections among transplant recipients, and Candida species have rise ...
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Journal articlemBio · 2011
Cryptococcus neoformans is an important fungal pathogen of immunocompromised individuals, with a close relative, Cryptococcus gattii, emerging as a serious threat for the immunocompetent. During initial infection, C. neoformans colonizes the airspaces of t ...
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Journal articleImmunol Invest · 2011
The interaction of pathogenic Cryptococcus species with their various hosts is somewhat unique compared to other fungal pathogens such as Aspergillus fumigatus and Candida albicans. Cryptococcus shares an intimate association with host immune cells, leadin ...
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Journal articleMbio · January 1, 2011
Cryptococcus neoformans is an important fungal pathogen of immunocompromised individuals, with a close relative, Cryptococcus gattii, emerging as a serious threat for the immunocompetent. During initial infection, C. neoformans colonizes the airspaces of t ...
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Journal articleAm J Respir Crit Care Med · January 1, 2011
With increasing numbers of immune-compromised patients with malignancy, hematologic disease, and HIV, as well as those receiving immunosupressive drug regimens for the management of organ transplantation or autoimmune inflammatory conditions, the incidence ...
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Journal article · December 1, 2010
This chapter focuses on host genomics, highlighting examples of studies aimed at unraveling the complex nature of immune response to infection. Bacterial pathogens are known to cause infectious diseases in humans. Many of these pathogens are commensal orga ...
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Journal articleJ Clin Microbiol · November 2010
The Fungitell assay for (1,3)β-D-glucan (BG) detection in serum has been evaluated in patients with invasive fungal infections (IFIs) and healthy controls and for the early diagnosis of IFI in cancer patients. We evaluated the BG assay for the detection of ...
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Journal articleInfect Immun · October 2010
Cryptococcus neoformans is a fungal pathogen that encounters various microenvironments during growth in the mammalian host, including intracellular vacuoles, blood, and cerebrospinal fluid (CSF). Because the CSF is isolated by the blood-brain barrier, we h ...
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Journal articlePLoS Pathog · August 26, 2010
Fungal pathogens exploit diverse mechanisms to survive exposure to antifungal drugs. This poses concern given the limited number of clinically useful antifungals and the growing population of immunocompromised individuals vulnerable to life-threatening fun ...
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Journal articleMol Microbiol · August 2010
The trehalose biosynthesis pathway is critical for virulence in human and plant fungal pathogens. In this study, we tested the hypothesis that trehalose 6-phosphate phosphatase (T6PP) is required for Aspergillus fumigatus virulence. A mutant of the A. fumi ...
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Journal articleJ Clin Microbiol · July 2010
For Candida species, a bimodal wild-type MIC distribution for echinocandins exists, but resistance to echinocandins is rare. We characterized isolates from patients with invasive candidiasis (IC) breaking through >or=3 doses of micafungin therapy during th ...
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Journal articleDiagn Microbiol Infect Dis · May 2010
Rapid, accurate diagnosis of community-acquired pneumonia (CAP) due to Mycoplasma pneumoniae is compromised by low sensitivity of culture and serology. Polymerase chain reaction (PCR) has emerged as a sensitive method to detect M. pneumoniae DNA in clinica ...
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Journal articleCurr Fungal Infect Rep · May 1, 2010
Given the substantial morbidity and mortality related to invasive fungal infections, treatment with a combination of antifungal agents is often considered. A growing body of literature from in vitro studies, animal models, and clinical experience provides ...
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Journal articleAntimicrob Agents Chemother · April 2010
Attenuated activity of echinocandin antifungals at high concentrations, known as the "paradoxical effect," is a well-established phenomenon in Candida albicans and Aspergillus fumigatus. In the yeast C. albicans, upregulation of chitin biosynthesis via the ...
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Journal articleSci Transl Med · March 3, 2010
Candidemia is the fourth most common bloodstream infection, with Candida albicans being the most common causative species. Success in reducing the associated morbidity and mortality has been limited by the inadequacy and time delay of currently available d ...
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Journal articleClin Infect Dis · February 1, 2010
Cryptococcosis is a global invasive mycosis associated with significant morbidity and mortality. These guidelines for its management have been built on the previous Infectious Diseases Society of America guidelines from 2000 and include new sections. There ...
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Journal articleAIDS Res Treat · 2010
Introduction. Hepatotoxicity is a concern in HIV/hepatitis C virus (HCV) coinfected patients due to their underlying liver disease. This study assessed the incidence of hepatotoxicity in HIV/HCV co-infected patients in two outpatient infectious diseases cl ...
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Journal articleMycopathologia · December 2009
Invasive fungal diseases (IFDs) remain a major cause of morbidity and mortality in allogeneic stem cell transplant (SCT) recipients. While the most common pathogens are Candida spp. and Aspergillus spp., the incidence of infections caused by non-albicans C ...
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Journal articleN Engl J Med · October 29, 2009
Mucocutaneous fungal infections are typically found in patients who have no known immune defects. We describe a family in which four women who were affected by either recurrent vulvovaginal candidiasis or onychomycosis had the early-stop-codon mutation Tyr ...
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Journal articleAm J Health Syst Pharm · October 1, 2009
PURPOSE: The mortality, length of hospitalization, and costs associated with invasive fungal infections (IFIs) in hospitalized patients were studied. METHODS: This retrospective database study used data from the 2004 Healthcare Cost and Utilization Project ...
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Journal articleInfect Immun · October 2009
The trehalose pathway is essential for stress tolerance and virulence in fungi. We investigated the importance of this pathway for virulence of the pathogenic yeast Cryptococcus gattii using the highly virulent Vancouver Island, Canada, outbreak strain R26 ...
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Journal articlePLoS Pathog · July 2009
Candida albicans is the leading fungal pathogen of humans, causing life-threatening disease in immunocompromised individuals. Treatment of candidiasis is hampered by the limited number of antifungal drugs whose efficacy is compromised by host toxicity, fun ...
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Journal articleInfect Immun · July 2009
Cryptococcus neoformans is a facultative intracellular opportunistic pathogen and the leading cause of fungal meningitis in humans. In the absence of a protective cellular immune response, the inhalation of C. neoformans cells or spores results in pulmonar ...
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Journal articleAntimicrob Agents Chemother · July 2009
The use of a nasogastric tube is one means of administering antifungal therapy to critically ill patients unable to receive medication via the oral route. This was a phase 1, open-label, single-center, randomized, crossover study of posaconazole administer ...
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Journal articlePLoS One · June 10, 2009
In 2007, the first confirmed case of Cryptococcus gattii was reported in the state of North Carolina, USA. An otherwise healthy HIV negative male patient presented with a large upper thigh cryptococcoma in February, which was surgically removed and the pat ...
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Journal articleCurrent Fungal Infection Reports · June 1, 2009
The genomic era offers a multitude of new technologies that may make the promise of personalized medicine a reality for patients in this century. Numerous new antifungal agents have been developed over the past two decades, but use of these agents requires ...
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Journal articleClin Chest Med · June 2009
Emerging fungi previously thought to be nonpathogenic are now recognized as playing a significant role in the increased incidence of invasive fungal disease. This change in the epidemiology of invasive fungal infections (IFIs) has occurred in the era of ag ...
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Journal articleCurr Biol · April 28, 2009
BACKGROUND: Hsp90 is an environmentally contingent molecular chaperone that influences the form and function of diverse regulators of cellular signaling. Hsp90 potentiates the evolution of fungal drug resistance by enabling crucial cellular stress response ...
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Journal articleEukaryot Cell · April 2009
Calcineurin is a conserved protein phosphatase that plays a critical role in Ca(2+) signaling and stress responses. Previously, a new class of conserved calcineurin-binding proteins, the calcipressins, was identified. However, the role of these proteins re ...
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Journal articleApplied Surface Science · March 15, 2009
The electronic and chemical properties of semiconductor materials may be useful in preventing growth of microorganisms. In this article, in vitro methods for assessing microbial growth on semiconductor materials will be presented. The structural and biolog ...
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Journal articleAm J Infect Control · March 2009
BACKGROUND: This study examined predictors of in-hospital mortality and time to extubation among patients with acute, severe hospital-acquired pneumonia (HAP) managed in the intensive care unit (ICU). METHODS: Patients with HAP prospectively identified bet ...
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Journal articleJ Cataract Refract Surg · March 2009
We report a case of Candida glabrata endophthalmitis following penetrating keratoplasty in a 57-year-old man. The infection was thought to be treated successfully with intravitreal amphotericin B but flared 7 months later following cataract extraction and ...
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Journal articleExpert Rev Anti Infect Ther · March 2009
Owing to the morbidity and mortality associated with invasive fungal infections, particularly in the immunocompromised host, development of new agents for both prevention and treatment is essential. Posaconazole is a recently approved extended-spectrum tri ...
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Journal articleCurrent Fungal Infection Reports · March 1, 2009
The diagnosis of Candida pneumonia is a difficult one to make, and some experts often question whether the entity truly exists. This article assimilates the information currently available regarding Candida pulmonary infection to elucidate the presentation ...
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Journal articleProc Natl Acad Sci U S A · February 24, 2009
Invasive fungal infections are a leading cause of mortality among immunocompromised individuals. Treatment is notoriously difficult with the limited armamentarium of antifungal drugs, whose efficacy is compromised by host toxicity, a limited activity spect ...
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Journal articleAntimicrob Agents Chemother · February 2009
Aspergillus fumigatus must be able to properly form hyphae and maintain cell wall integrity in order to establish invasive disease. Ras proteins and calcineurin each have been implicated as having roles in these processes. Here, we further delineate the ro ...
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Journal articleValue Health · 2009
OBJECTIVES: Clinical trial data indicate that posaconazole is superior to fluconazole (FLU) or itraconazole (ITRA) in preventing invasive fungal infections (IFIs) among neutropenic patients. Our objective was to assess the cost-effectiveness of posaconazol ...
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Journal articleMed Mycol · 2009
Systemic fungal infections remain a significant cause of mortality in neutropenic and immunocompromised patients, despite advances in their diagnosis and treatment. The incidence of such infections is rising due to the use of intensive chemotherapy regimen ...
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Journal articleJ Antimicrob Chemother · December 2008
OBJECTIVES: The aim of this study is to determine the efficacy and safety of posaconazole in patients with underlying renal impairment. Patients and methods We analysed the efficacy and safety of posaconazole in patients with renal impairment in a post hoc ...
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Journal articleClin Infect Dis · November 15, 2008
Cryptococcosis remains a significant opportunistic infection in solid organ transplant recipients. Disease presentation and outcomes may be affected by, among other factors, the use of calcineurin inhibitor immunosuppressive agents. It is being increasingl ...
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Journal articleEur J Clin Microbiol Infect Dis · October 2008
Cryptococcus neoformans is an uncommonly recognized cause of pneumonia in HIV-negative patients. Because of its propensity to disseminate to the meninges and other sites, a lumbar puncture is recommended for patients with pulmonary cryptococcosis, regardle ...
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Journal articleTransplantation · September 27, 2008
BACKGROUND: The incidence of invasive fungal infections (IFIs) in solid organ transplant (SOT) recipients has increased during the past 20 years and is associated with significant morbidity and mortality. In this post hoc analysis of a large, open-label, m ...
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Journal articleMol Microbiol · September 2008
The pathogenic fungus Cryptococcus neoformans generally initiates infection in mammalian lung tissue and subsequently disseminates to the brain. We performed serial analysis of gene expression (SAGE) on C. neoformans cells recovered from the lungs of mice ...
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Journal articleClin Infect Dis · September 1, 2008
Invasive fungal diseases (IFDs) have become major causes of morbidity and mortality among highly immunocompromised patients. Authoritative consensus criteria to diagnose IFD have been useful in establishing eligibility criteria for antifungal trials. There ...
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Journal articleEukaryot Cell · July 2008
The calcineurin pathway is a critical signal transduction pathway in fungi that mediates growth, morphology, stress responses, and pathogenicity. The importance of the calcineurin pathway in fungal physiology creates an opportunity for the development of n ...
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Journal articlePLoS Genet · June 20, 2008
Invasive aspergillosis (IA) is a common and life-threatening infection in immunocompromised individuals. A number of environmental and epidemiologic risk factors for developing IA have been identified. However, genetic factors that affect risk for developi ...
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Journal articleClin Infect Dis · June 15, 2008
BACKGROUND: Invasive fungal diseases are important causes of morbidity and mortality. Clarity and uniformity in defining these infections are important factors in improving the quality of clinical studies. A standard set of definitions strengthens the cons ...
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Journal articlePharmacotherapy · May 2008
Infections caused by yeasts and molds continue to be associated with high rates of morbidity and mortality in both immunocompromised and immunocompetent patients. Many antifungal drugs have been developed over the past 15 years to aid in the management of ...
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Journal articleClin Infect Dis · May 1, 2008
The prognosis for persons with invasive fungal infections has improved over the past 2 decades because of the development of new diagnostic tools, a better understanding of the epidemiology and prognostic factors of these infections, and the availability o ...
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Journal articleSemin Respir Crit Care Med · April 2008
The frequency and diversity of serious fungal infections are increasing. Persons who are severely immunocompromised are particularly vulnerable to infection from unusual molds and yeasts that are often found naturally in the environment. Clinical manifesta ...
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Journal articleScand J Infect Dis · 2008
Unit-specific antibiograms serve as useful guides to clinicians and infection control personnel. We compared trends in antimicrobial resistance in intensive care units using traditional 2-y unit-specific antibiogram data and 3 y of data. Three-y unit-speci ...
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Journal articleClin Infect Dis · January 1, 2008
Despite advances in preventive, diagnostic, and therapeutic interventions, invasive fungal infections cause significant morbidity and mortality in immunocompromised patients. The burden of antifungal resistance in such high-risk patients is becoming a majo ...
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Journal articlePLoS One · December 26, 2007
Initiation of a protective immune response to infection by the pathogenic fungus Cryptococcus neoformans is mediated in part by host factors that promote interactions between immune cells and C. neoformans yeast. Surfactant protein A (SP-A) contributes pos ...
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Journal articleInt J STD AIDS · December 2007
This retrospective cohort study conducted at the Durham Veterans Affairs Medical Center evaluated the effectiveness and safety of lipid-lowering therapy (LLT) in a HIV-infected population as compared with a general population with hyperlipidaemia. Fifty-th ...
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Journal articleClin Infect Dis · November 1, 2007
Pregnancy is a state of subtle immunosuppression characterized by physiologic suppression of proinflammatory host responses that are meant to promote embryonic implantation. Rapid reversal of these changes and a rebound of inflammatory responses during the ...
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Journal articleCurr Infect Dis Rep · October 2007
Osteoarticular complications may occur with a variety of invasive fungal infections, and seem to be increasing with growing use of prosthetic joints and as the immunosuppressed patient population increases. Epidemiology, pathogenesis, presentation, and man ...
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Journal articleAntimicrob Agents Chemother · October 2007
Fluconazole-FK506 or fluconazole-cyclosporine drug combinations were tested in an ex vivo Trichophyton mentagrophytes human skin infection model. Conidia colonization was monitored by scanning electron microscopy over a 7-day treatment period. The fluconaz ...
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Journal articleAntimicrob Agents Chemother · October 2007
Fatty acid synthase in the yeast Cryptococcus neoformans is composed of two subunits encoded by FAS1 and FAS2 genes. We inserted a copper-regulated promoter (P(CTR4-2)) to regulate FAS1 and FAS2 expression in Cryptococcus neoformans (strains P(CTR4-2)/FAS1 ...
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Journal articleAntimicrob Agents Chemother · August 2007
Calcineurin mutation or inhibition enhanced the antifungal morphological effect of cell wall inhibitors caspofungin or nikkomycin Z against Aspergillus fumigatus. Quantification of 1,3-beta-d-glucan revealed decreased amounts in the calcineurin A (Deltacna ...
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Journal articleBone Marrow Transplant · August 2007
Invasive fungal infections are associated with significant morbidity and mortality among immunocompromised patients. Recent advances in antifungal development have afforded us more pharmacologic compounds to choose from when managing these fungal infection ...
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Journal articlePediatr Infect Dis J · July 2007
BACKGROUND: The galactomannan (GM) assay is an approved noninvasive test for detection of invasive aspergillosis (IA) that has been validated in adult patients with hematologic malignancies who are undergoing bone marrow transplantation. There have been fe ...
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Journal articleClin Vaccine Immunol · July 2007
1,3-Beta-D-Glucan serum levels have demonstrated good diagnostic sensitivity and specificity for the diagnosis of candidiasis in adult patients, but normal levels for children have not been established. We found higher 1,3-beta-D-glucan levels in children ...
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Journal articleNat Rev Microbiol · June 2007
The number of immunocompromised patients with invasive fungal infections continues to increase and new antifungal therapies are not keeping pace with the growing incidence of these infections and their associated mortality. Calcineurin inhibition is curren ...
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Journal articleLancet Infect Dis · June 2007
Host immunity is essential in facilitating the eradication of infection. However, immunological recovery and an imbalance characterised by either suboptimum or excessive expression of immune responses can also be harmful to the host. Inflammatory responses ...
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Journal articleInfections in Medicine · April 1, 2007
Since endemic mycoses can be contracted during a brief travel exposure, it is important to inquire about travel when a patient presents with symptoms of a respiratory infection. Most patients with blastomycosis present in the chronic phase, with cough, wei ...
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Journal articleAntimicrob Agents Chemother · March 2007
Voriconazole is a triazole antifungal agent used to treat serious, invasive fungal infections including aspergillosis and candidemia. Limitations with existing formulations of voriconazole including restricted utility in patients with renal dysfunction (in ...
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Journal articleInfect Immun · March 2007
We evaluated cell-mediated immune (CMI) responses in mice given a pulmonary infection with a Cryptococcus neoformans strain engineered to produce the Th1-type cytokine gamma interferon (IFN-gamma). Mice given a pulmonary infection with an IFN-gamma-produci ...
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Journal articleJ Clin Microbiol · March 2007
To assess their utility for antifungal susceptibility testing in our clinical laboratory, the Etest and Sensititre methods were compared with the Clinical and Laboratory Standards Institute (CLSI) M27-A2 reference broth microdilution method. Fluconazole (F ...
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Journal articleJ Perinatol · February 2007
Candidemia is common in extremely low birth weight infants and is associated with substantial mortality and morbidity. Treatment options have traditionally been limited to amphotericin B deoxycholate or fluconazole. We present a case of a premature infant ...
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Journal articlePLoS Med · February 2007
Perfect discusses the implications of a national prospective study (the "CryptoA/D" study) of the factors influencing clinical presentation and outcome of patients with cryptococcosis. ...
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Journal articleClin Infect Dis · February 1, 2007
Invasive fungal infection (IFI) is a leading cause of infection-related mortality among patients with cancer and prolonged neutropenia and among allogeneic hematopoietic stem cell transplant recipients with graft-versus-host disease. Invasive candidiasis w ...
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Journal articleN Engl J Med · January 25, 2007
BACKGROUND: Patients with neutropenia resulting from chemotherapy for acute myelogenous leukemia or the myelodysplastic syndrome are at high risk for difficult-to-treat and often fatal invasive fungal infections. METHODS: In this randomized, multicenter st ...
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Journal articleEukaryot Cell · January 2007
The function of the peroxisomes was examined in the pathogenic basidiomycete Cryptococcus neoformans. Recent studies reveal the glyoxylate pathway is required for virulence of diverse microbial pathogens of plants and animals. One exception is C. neoforman ...
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Journal articleClin Infect Dis · January 1, 2007
BACKGROUND: Invasive aspergillosis is an important cause of morbidity and mortality in immunocompromised patients. Current treatments provide limited benefit. Posaconazole is an extended-spectrum triazole with in vitro and in vivo activity against Aspergil ...
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Journal articleGene · November 15, 2006
Fungi from the genus Aspergillus are important saprophytes and opportunistic human fungal pathogens that contribute in these and other diverse ways to human well-being. Part of their impact on human well-being stems from the production of small molecular w ...
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Journal articleAm J Med · November 2006
BACKGROUND: Caspofungin is emerging as first-line therapy for invasive candidiasis. Data on the use of caspofungin for treatment for invasive candidiasis are limited to clinical trials and case reports. We report a single-center experience with 104 consecu ...
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Journal articleInfect Immun · October 2006
The disaccharide trehalose has been found to play diverse roles, from energy source to stress protectant, and this sugar is found in organisms as diverse as bacteria, fungi, plants, and invertebrates but not in mammals. Recent studies in the pathobiology o ...
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Journal articleEukaryot Cell · September 2006
In the present study, we sought to elucidate the contribution of the Cryptococcus neoformans catalase gene family to antioxidant defense. We employed bioinformatics techniques to identify four members of the C. neoformans catalase gene family and created m ...
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Journal articleInfect Dis Clin North Am · September 2006
In the past 2 decades, Cryptococcus has emerged in its clinical significance and as a model yeast for understanding molecular pathogenesis. C neoformans and C gattii are currently considered major primary and secondary pathogens in a wide array of hosts th ...
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Journal articleEukaryot Cell · July 2006
Calcineurin is implicated in a myriad of human diseases as well as homeostasis and virulence in several major human pathogenic microorganisms. The fungus Aspergillus fumigatus is a leading cause of infectious death in the rapidly expanding immunocompromise ...
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Journal articleClin Infect Dis · June 15, 2006
BACKGROUND: Invasive fungal infections are found most frequently in immunosuppressed and critically ill hospitalized patients. Antifungal therapy is often required for long periods. Safety data from the clinical development program of the triazole antifung ...
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Journal articleEukaryot Cell · June 2006
The fungal secondary metabolite gliotoxin produced by Aspergillus fumigatus has been hypothesized to be important in the development of invasive aspergillosis. In this study, we addressed this hypothesis by disrupting a nonribosomal peptide synthetase (NRP ...
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Journal articleFEMS Yeast Res · June 2006
The ability of fungi to grow well at mammalian body temperatures is a fundamental characteristic of invasive human fungal pathogens. Cryptococcus neoformans, with its genetics, molecular biology, robust animal models and clinical importance, has become a p ...
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Journal articleExpert Opin Emerg Drugs · May 2006
The echinocandins are a new class of antifungals, developed in response to the need for safe and effective antifungals for the treatment of invasive fungal infections. These agents work by inhibiting 1,3-beta-d-glucan synthase, an enzyme essential for prod ...
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Journal articleEur J Clin Microbiol Infect Dis · April 2006
Invasive fungal infections are major medical complications in immunocompromised patients. The recent rise in the incidence of cancer and the increased use of newer medical treatment modalities, including organ transplantations, have resulted in growing num ...
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Journal articleTranspl Infect Dis · March 2006
Allogeneic hematopoietic stem cell transplant (HSCT) recipients are at increased risk for invasive fungal infections (IFIs) over prolonged periods of time. Aerosolized amphotericin B lipid complex (ABLC) has shown promise in lung transplant recipients as a ...
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Journal articlePharmacotherapy · December 2005
Approximately 10% of adult patients with human immunodeficiency virus (HIV) infection have HIV-associated nephropathy (HIVAN). This condition, a leading cause of renal failure, is characterized by damage to specific areas of the renal filtration system. It ...
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Journal articleExpert Opin Pharmacother · December 2005
The frequency and severity of invasive fungal infections have been increasingly recognised and new antifungal therapies have expanded the therapeutic armamentarium available to manage such infections. Antifungal agents comprise a significant portion of ant ...
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Journal articleCurr Biol · November 22, 2005
The gas carbon dioxide (CO2) plays a critical role in microbial and mammalian respiration, photosynthesis in algae and plants, chemoreception in insects, and even global warming . However, how CO2 is transported, sensed, and metabolized by microorganisms i ...
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Journal articleMed Mycol · November 2005
We conducted a study to determine the antifungal susceptibility of vaginal Candida isolates from HIV-infected Brazilian women. Among 127 women enrolled, positive cultures for yeast were obtained from 31 of 38 (81%) women with symptomatic vulvovaginitis, an ...
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Journal articleNature · October 27, 2005
Genealogy can illuminate the evolutionary path of important human pathogens. In some microbes, strict clonal reproduction predominates, as with the worldwide dissemination of Mycobacterium leprae, the cause of leprosy. In other pathogens, sexual reproducti ...
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Journal articleJ Infect · October 2005
OBJECTIVES: The optimal management of Candida infective endocarditis (IE) is unknown. METHODS: We reviewed all 879 cases of Candida IE reported from 1966-2002 in the peer-reviewed literature to better understand the role of medical and surgical therapies. ...
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Journal articleTransplantation · September 27, 2005
The clinical impact of voriconazole resistance in Candida glabrata is not well described. Five hematopoietic stem cell transplant recipients that developed breakthrough Candida glabrata bloodstream infections while receiving voriconazole are described and ...
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Journal articleFEMS Immunol Med Microbiol · September 1, 2005
Cryptococcus neoformans has become a common central nervous system pathogen as the immunocompromised populations enlarge world-wide. This encapsulated yeast has significant advantages for the study of fungal pathogenesis and these include: (1) a clinically ...
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Journal articleInfect Immun · August 2005
Cryptococcus neoformans is a fungal pathogen that has evolved over the past 40 million years into three distinct varieties or sibling species (gattii, grubii, and neoformans). Each variety manifests differences in epidemiology and disease, and var. grubii ...
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Journal articleInfect Immun · August 2005
Cryptococcus neoformans is an encapsulated fungal pathogen that primarily infects the central nervous system of immunocompromised individuals, causing life-threatening meningoencephalitis. The capacity of C. neoformans to subvert host defenses and dissemin ...
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Journal articleLaryngoscope · June 2005
OBJECTIVE: To describe an extremely rare fungal mastoiditis caused by Lecythophora hoffmannii, its recalcitrant behavior to therapy, and eventual successful treatment with adjunctive therapy using polyhexamethylene biguanide (a common swimming pool biocide ...
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Journal articleClin Infect Dis · May 15, 2005
In this article, we review the issues surrounding funguria and its management. With this background, the value of bladder irrigation with amphotericin B for the management of funguria is directly examined. Amphotericin B bladder irrigation is used frequent ...
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Journal articleClin Infect Dis · May 1, 2005
The efficacy and renal safety of amphotericin B lipid complex (ABLC) injection were assessed in 106 patients with cryptococcal infection. Eighty-three patients (78%) had a central nervous system (CNS) infection. Of these patients, 20 initiated azole therap ...
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Journal articleClin Infect Dis · May 1, 2005
An assessment was made of the efficacy and renal safety of amphotericin B lipid complex (ABLC) in the treatment of patients with invasive fungal infections caused by moulds other than Aspergillus species, on the basis of a retrospective analysis of data fr ...
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Journal articleMed Mycol · May 2005
Invasive aspergillosis (IA) is a serious complication of immunosuppression, and has become more widespread as the immunocompromised population has increased as a result of new treatment strategies and diseases. This paper identifies and discusses seven iss ...
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Journal articleExpert Rev Anti Infect Ther · April 2005
While amphotericin B deoxycholate (Fungizone, Apothecon Pharmaceuticals) has been considered by many to be the gold standard for the treatment for numerous invasive fungal infections for over 45 years, toxicities associated with its use often necessitate t ...
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Journal articleAntimicrob Agents Chemother · March 2005
A promising approach to improving outcomes in patients with cryptococcal meningitis is to use adjunctive passive immunotherapy with a monoclonal antibody (MAb) directed against the capsular polysaccharide of Cryptococcus neoformans. This is the first appli ...
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Journal articleMicrob Pathog · 2005
Cryptococcus neoformans is an opportunistic fungal pathogen that threatens individuals with impaired cell-mediated immunity (CMI). Presently, there are no standardized vaccines available to prevent cryptococcal infections and conventional anti-fungal drug ...
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Journal articleFungal Genet Biol · January 2005
Cryptococcus neoformans is an opportunistic pathogen and the leading cause of fungal meningitis. To survive within the host, this organism must be able to protect itself from oxidative stress. Cytochrome c peroxidase (Ccp1) is a mitochondrial antioxidant t ...
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Journal articleEukaryot Cell · January 2005
Manganese superoxide dismutase is an essential component of the mitochondrial antioxidant defense system of most eukaryotes. In the present study, we used a reverse-genetics approach to assess the contribution of the Cryptococcus neoformans manganese super ...
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Journal articleMethods Mol Med · 2005
Cryptococcus neoformans is an opportunistic fungal pathogen that may lead to life-threatening meningoencephalitis and pulmonary infections in immunosuppressed hosts. The lack of an effective fungicidal regimen and the development of antifungal resistant st ...
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Journal articleExpert Review of Anti-Infective Therapy · 2005
While amphotericin B deoxycholate (Fungizone®, Apothecon Pharmaceuticals) has been considered by many to be the gold standard for the treatment for numerous invasive fungal infections for over 45 years, toxicities associated with its use often necessitate ...
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Journal articleDermatol Ther · 2005
As the population of chronically immunosuppressed individuals continues to grow, the prevalence of fungal infections is increasing. Fungal infections in this patient population represent challenges in diagnosis and management. This article will review the ...
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Journal articleAntimicrob Agents Chemother · December 2004
We performed in vitro antifungal checkerboard testing on 12 Aspergillus fumigatus clinical isolates (6 transplant recipients and 6 nontransplant patients) with three antifungal agents (amphotericin B, voriconazole, and caspofungin) and three immunosuppress ...
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Journal articleInfect Immun · December 2004
In Candida albicans, calcineurin is essential for virulence and survival during membrane perturbation by azoles. Crz1 is a proposed downstream target of calcineurin based on studies of Saccharomyces cerevisiae. However, the in vitro phenotypes of C. albica ...
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Journal articleOncology (Williston Park) · December 2004
The emergence of resistance and changes in the spectrum of Candida infections have led to an increased interest in susceptibility testing of antifungal drugs. Such testing may be particularly useful in patients with invasive candidiasis who have been previ ...
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Journal articleOncology (Williston Park) · November 2004
Considering the significant morbidity and mortality associated with invasive fungal infections in immunocompromised patients, it is particularly important to make the diagnosis as early as possible and to make best use of the available antifungal drugs for ...
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Journal articleOncology (Williston Park) · November 2004
Candidiasis and aspergillosis are the most common fungal infections in hematopoietic stem cell transplant recipients and other hematology/oncology patients. Strategies for reducing the morbidity and mortality associated with these infections include antifu ...
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Journal articleClin Infect Dis · October 15, 2004
BACKGROUND: Emphasis has been placed on the need for antifungal prophylaxis when transplanted organs are directly exposed to the environment. In lung transplantation, one strategy for prevention has been aerosolization of polyenes into the lung. Despite wi ...
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Journal articleClin Infect Dis · October 1, 2004
Conventional antifungal therapy for fungal endocarditis has been associated with a poor cure rate. Therefore, combined medical and surgical therapy has been recommended. However, new potent antifungal agents, such as echinocandins, could increase the medic ...
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Journal articleMed Mycol · October 2004
Animal models of invasive aspergillosis have been used for virulence studies and antifungal efficacy evaluations but results have been inconsistent. In an attempt to reproduce human infection, many Aspergillus animal models have utilized a 'pulmonary route ...
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Journal articleEukaryot Cell · October 2004
The ability to survive and proliferate at 37 degrees C is an essential virulence attribute of pathogenic microorganisms. A partial-genome microarray was used to profile gene expression in the human-pathogenic fungus Cryptococcus neoformans during growth at ...
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Journal articleCurr Genet · October 2004
Cryptococcus neoformans is an encapsulated pathogenic yeast producing meningoencephalitis. Two primary strains in genetic studies, serotype A H99 and serotype D JEC21, possess dramatic differences in virulence. Since it has been shown that mitochondrial ge ...
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Journal articleExpert Opin Investig Drugs · August 2004
Administration of antifungals by routes other than that for which the agent was designed or approved have been utilised in attempts to provide directed therapy, reduce adverse effects and improve drug penetration into selected infection sites, such as the ...
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Journal articleEukaryot Cell · August 2004
In response to various extracellular signals, the morphology of the human fungal pathogen Candida albicans switches from yeast to hypha form. Here, we report that GPR1 encoding a putative G-protein-coupled receptor and GPA2 encoding a Galpha subunit are re ...
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Journal articleJ Clin Microbiol · August 2004
Seventeen laboratories participated in a study of interlaboratory reproducibility with caspofungin microdilution susceptibility testing against panels comprising 30 isolates of Candida spp. and 20 isolates of Aspergillus spp. The laboratories used material ...
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Journal articleClin Infect Dis · July 15, 2004
Current in vitro and in vivo data indicate that invasive aspergillosis due to Aspergillus terreus is resistant to treatment with amphotericin B. Because little clinical data are available to guide therapy, we performed a retrospective cohort study of cases ...
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Journal articleAntimicrob Agents Chemother · May 2004
The optimal treatment for invasive aspergillosis remains elusive, despite the increased efficacy of newer agents. The immunosuppressants cyclosporine (CY), tacrolimus (FK506), and sirolimus (formerly called rapamycin) exhibit in vitro and in vivo activity ...
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Journal articleAm J Pathol · May 2004
Our objective was to determine the role of the cryptococcal virulence factor urease in pulmonary-to-central nervous system, dissemination, invasion, and growth. C. neoformans H99, the urease knockout strain (ure1) derived from H99, and the urease restored ...
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Journal articleExpert Rev Anti Infect Ther · April 2004
Invasive fungal infections carry significant morbidity and mortality. Candida species have become one of the most frequent causes of bloodstream infections, and infections caused by molds such as Aspergillus are becoming more frequent in immunocompromised ...
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Journal articleAdvanced Studies in Medicine · April 1, 2004
This article provides an update on the current state of the art for treating invasive fungal infections, with insights, based on the experience of the author, into future directions for antifungal treatment strategies. Amphotericin B deoxycholate (amBd) is ...
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Journal articleJ Clin Microbiol · March 2004
A 64-year-old male with Aspergillus fumigatus infection that had disseminated from the lung to the ankle and adjacent bone was treated successfully with posaconazole after therapy with itraconazole and amphotericin B lipid complex failed. Marked clinical i ...
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Journal articleAntimicrob Agents Chemother · February 2004
The activity of albaconazole (UR-9825; J. Uriach & Cía. S.A., Barcelona, Spain) was compared to that of fluconazole against 12 isolates of Cryptococcus neoformans in vitro and against 1 isolate in vivo in a rabbit model of cryptococcal meningitis. Albacona ...
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Journal articleTransplantation · January 27, 2004
BACKGROUND: Aerosolized administrations of amphotericin B deoxycholate (AmBd) and amphotericin B lipid complex (ABLC) in lung transplant recipients were compared for safety and tolerability. The incidence of invasive fungal infections in patients receiving ...
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Journal articleScand J Infect Dis · 2004
Candida infective endocarditis (IE) is increasingly common, yet most reports have been single-center reviews. We evaluated 16 patients with Candida IE nested within a cohort of 2,022 patients with IE. Prosthetic valve IE was more common in patients with Ca ...
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Journal articleMed Mycol · December 2003
The number of immunocompromised patients and subsequent invasive fungal infections continues to rise. However, the education of future medical mycologists to engage this growing problem is diminishing. While there are an increasing number of publications a ...
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Journal articleEukaryot Cell · December 2003
Cryptococcus neoformans, an encapsulated basidiomycete fungus of medical importance, is capable of crossing the blood-brain barrier and causing meningitis in both immunocompetent and immunocompromised individuals. To gain insight into the adaptation of the ...
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Journal articleJ Clin Microbiol · November 2003
Rhodotorula infections occur among patients with immunosuppression and/or central venous catheters. Using standardized methods (NCCLS M27-A), we determined the antifungal susceptibilities of 10 Rhodotorula bloodstream infection isolates. Patient informatio ...
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Journal articleJ Chemother · November 2003
Scedosporium species are now increasingly isolated from immunocompromised and immunocompetent patients. Unfortunately, Scedosporium species infections are generally resistant to amphotericin B, and S. prolificans strains are particularly resistant to prese ...
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Journal articleJ Clin Invest · October 2003
Cryptococcus neoformans is a fungal pathogen that, after inhalation, can disseminate to the brain. Host alveolar macrophages (AMs) represent the first defense against the fungus. Once phagocytosed by AMs, fungal cells are killed by a concerted mechanism, i ...
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Journal articleInfect Immun · October 2003
We identified a homologue of the alternative oxidase gene in a screen to identify genes that are preferentially transcribed in response to a shift to 37 degrees C in the human-pathogenic yeast Cryptococcus neoformans. Alternative oxidases are nucleus-encod ...
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Journal articleJournal of Respiratory Diseases · October 1, 2003
Since endemic mycoses can be contracted during a brief travel exposure, it is important to inquire about travel when a patient presents with symptoms of a respiratory infection. Most patients with blastomycosis present in the chronic phase, with cough, wei ...
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Journal articleInfect Immun · September 2003
Cryptococcus neoformans is a human-pathogenic fungus that has evolved into three distinct varieties that infect most prominently the central nervous system. A sexual cycle involving haploid cells of a and alpha mating types has been reported for two variet ...
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Journal articleMed Mycol · August 2003
Cerebral phaeohyphomycosis is a rare fungal infection with a poor prognosis when using conventional antifungal therapy in the absence of neurosurgical intervention. We present a case of a pediatric patient with inoperable Cladophialophora bantiana cerebral ...
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Journal articleJ Clin Microbiol · August 2003
Scedosporium species are increasingly isolated from immunocompromised and immunocompetent patients. Unfortunately, Scedosporium infections are generally resistant to amphotericin B, and Scedosporium prolificans strains are particularly resistant to the ant ...
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Journal articleEur J Clin Microbiol Infect Dis · August 2003
In a randomized study, caspofungin was compared with amphotericin B for the treatment of invasive candidiasis in a total of 239 adults from 56 sites in 20 countries. This study provided a unique opportunity to assess the frequency and outcome of invasive c ...
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Journal articleMol Microbiol · July 2003
Cryptococcus neoformans is an opportunistic fungal pathogen with a defined sexual cycle in which the alpha allele of the mating type locus is linked to virulence and haploid differentiation. Here we analysed a conserved MAP kinase cascade composed of matin ...
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Journal articleCancer · July 1, 2003
BACKGROUND: Invasive fungal infections, including candidemia, pose a major threat to patients with impaired immune defenses, including bone marrow transplantation (BMT) recipients. During 1992-1997, 845 women with multiple lymph node positive or metastatic ...
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Journal articleEukaryot Cell · June 2003
Calcineurin is a calcium-activated protein phosphatase that is the target of the immunosuppressants cyclosporin A and FK506. In T cells, calcineurin controls nuclear import of the NF-AT transcription factor and gene activation. In plants and fungi, calcine ...
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Journal articleExpert Opin Pharmacother · May 2003
Caspofungin (Cancidas, Merck & Co. Inc.) is the first echinocandin antifungal agent to gain FDA-approval for use in the US. It has excellent clinical activity against Candida spp. and Aspergillus spp. but lacks significant activity against Cryptococcus neo ...
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Journal articleClin Infect Dis · May 1, 2003
Treatments for invasive fungal infections remain unsatisfactory. We evaluated the efficacy, tolerability, and safety of voriconazole as salvage treatment for 273 patients with refractory and intolerant-to-treatment fungal infections and as primary treatmen ...
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Journal articleMicrobiology (Reading) · April 2003
In the study of differential gene expression of Cryptococcus neoformans, a transcript of COX1 (cytochrome oxidase c subunit 1) was identified in a serotype A strain. The transcript was upregulated at 37 degrees C compared to 30 degrees C and expressed by y ...
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Journal articleInfect Immun · March 2003
Cryptococcal phospholipase (PLB1) is a secreted enzyme with lysophospholipase hydrolase and lysophospholipase transacylase activities. To investigate the role of PLB1 in the evasion of host immune responses, we characterized pulmonary immune responses to t ...
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Journal articleInt J Infect Dis · March 2003
As the number of immunocompromised patients increases, there is a concomitant increase in the number and diversity of fungal infections. Fungi that were once considered harmless or contaminants are now pathogenic in the immunocompromised host. Often these ...
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Journal articleCurr Opin Investig Drugs · February 2003
Invasive fungal infections are rising worldwide as the number of immunocompromised patients increases. Unfortunately, our armamentarium of antifungal drugs is limited. Although current therapies are effective in treating some of the most prevalent infectio ...
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Journal articleExpert Opin Pharmacother · February 2003
The incidence of invasive mould infections is increasing and is associated with significant morbidity and mortality. Among the most prevalent of these infections are those caused by Aspergillus and Fusarium species. Invasive disease caused by moulds freque ...
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Journal articleJ Antimicrob Chemother · February 2003
To determine the effect of omeprazole on peak serum concentrations (C(max)) of itraconazole oral solution (IOS), we carried out a randomized, open-label, prospective, crossover study. Fifteen healthy, non-pregnant adults received a single dose of IOS 400 m ...
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Journal articleInfect Immun · January 2003
Superoxide dismutase (SOD) is an enzyme that converts superoxide radicals into hydrogen peroxide and molecular oxygen and has been shown to contribute to the virulence of many human-pathogenic bacteria through its ability to neutralize toxic levels of reac ...
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Journal articleN Engl J Med · December 19, 2002
BACKGROUND: Caspofungin is an echinocandin agent with fungicidal activity against candida species. We performed a double-blind trial to compare caspofungin with amphotericin B deoxycholate for the primary treatment of invasive candidiasis. METHODS: We enro ...
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Journal articleInfect Dis Clin North Am · December 2002
Cryptococcus neoformans has risen to a worldwide highly recognizable major opportunistic pathogen with deadly consequences. It has become a model fungus to study a variety of paradigms in the host-fungus relationships. Genomic studies are advancing knowled ...
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Journal articleProc Natl Acad Sci U S A · November 26, 2002
We found that the well-studied nematode Caenorhabditis elegans can use various yeasts, including Cryptococcus laurentii and Cryptococcus kuetzingii, as a sole source of food, producing similar brood sizes compared with growth on its usual laboratory food s ...
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Journal articleInfect Immun · October 2002
Functional genomics has become a major focus in the study of microbial pathogenesis. This study used a functional genomic tool, differential display reverse transcription-PCR, to identify a transcriptional profile of Cryptococcus neoformans cells as they p ...
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Journal articlePediatr Infect Dis J · October 2002
BACKGROUND: Antibiotic-resistant Gram-positive pathogens are an increasingly common cause of serious pediatric infections. Although quinupristin/dalfopristin demonstrates favorable activity against resistant Gram-positive pathogens (including many vancomyc ...
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Journal articleAntimicrob Agents Chemother · August 2002
The steady-state pharmacokinetics of lamivudine were evaluated in 11 subjects with human immunodeficiency virus infection and end-stage renal disease, 9 of whom were receiving hemodialysis and 2 of whom were receiving chronic ambulatory peritoneal dialysis ...
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Journal articleSemin Respir Infect · June 2002
Treatment of fungal infections is an area of increasing concern. This is because of the complexity of underlying illness in affected patients as well as the limited number of antifungal agents available for use. Current strategies focus on prevention of th ...
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Journal articleEukaryot Cell · April 2002
Cryptococcus neoformans is an opportunistic fungal pathogen with a defined sexual cycle involving fusion of haploid MATalpha and MATa cells. Virulence has been linked to the mating type, and MATalpha cells are more virulent than congenic MATa cells. To stu ...
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Journal articleCurr Opin Infect Dis · April 2002
Although pneumonia caused by fungi is not a common occurrence in the general population, disease in an enlarging immunocompromised population is encountered with increasing frequency. Fungal pneumonias are most frequently caused by Aspergillus spp., dimorp ...
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Journal articlePediatr Infect Dis J · March 2002
OBJECTIVE: To describe the safety and efficacy of voriconazole in children treated within the compassionate release program. METHODS: Children received voriconazole on a compassionate basis for treatment of an invasive fungal infection if they were refract ...
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Journal articleEMBO J · February 15, 2002
The immunosuppressants cyclosporin A (CsA) and FK506 inhibit the protein phosphatase calcineurin and block T-cell activation and transplant rejection. Calcineurin is conserved in microorganisms and plays a general role in stress survival. CsA and FK506 are ...
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Journal articleMed Mycol · February 2002
Cryptococcosis, caused by an encapsulated fungus, Cryptococcus neoformans, has emerged as a life-threatening infection in HIV-positive individuals and other immunocompromised hosts. This report describes an unusual strain of C. neoformans isolated from an ...
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Journal articleEukaryot Cell · February 2002
The signaling molecule cyclic AMP (cAMP) is a ubiquitous second messenger that enables cells to detect and respond to extracellular signals. cAMP is generated by the enzyme adenylyl cyclase, which is activated or inhibited by the Galpha subunits of heterot ...
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Journal articleN Engl J Med · January 24, 2002
BACKGROUND: Patients with neutropenia and persistent fever are often treated empirically with amphotericin B or liposomal amphotericin B to prevent invasive fungal infections. Antifungal triazoles offer a potentially safer and effective alternative. METHOD ...
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Journal articleChest · January 2002
BACKGROUND: Lung transplantation has become an acceptable treatment option for many end-stage lung diseases. Pulmonary mycetomas are found in patients with end-stage lung diseases, especially sarcoidosis. The clinical course and long-term outcome of these ...
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Journal articleMicrobiology (Reading) · January 2002
Antisense repression was used as a method to alter gene function in the human-pathogenic fungus Cryptococcus neoformans. The calcineurin A gene (CNA1) and the laccase gene (LAC1) were targeted since disruption of these loci results in phenotypes that are e ...
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Journal articleMicrobiology · 2002
Antisense repression was used as a method to alter gene function in the human-pathogenic fungus Cryptococcus neoformans. The calcineurin A gene (CNA1) and the laccase gene (LAC1) were targeted since disruption of these loci results in phenotypes that are e ...
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Journal articleClin Infect Dis · December 1, 2001
The term "aspergillosis" comprises several categories of infection: invasive aspergillosis; chronic necrotizing aspergillosis; aspergilloma, or fungus ball; and allergic bronchopulmonary aspergillosis. In 24 medical centers, we examined the impact of a cul ...
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Journal articleAntimicrob Agents Chemother · November 2001
It has been postulated that phospholipases of fungal origin can affect in vitro susceptibility testing of amphotericin B lipid complex (ABLC). We used specific phospholipase-deficient mutants of Candida albicans and Cryptococcus neoformans in susceptibilit ...
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Journal articleAntimicrob Agents Chemother · November 2001
Candida albicans and Cryptococcus neoformans cause both superficial and disseminated infections in humans. Current antifungal therapies for deep-seated infections are limited to amphotericin B, flucytosine, and azoles. A limitation is that commonly used az ...
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Journal articleClin Infect Dis · September 1, 2001
We conducted a case study of human immunodeficiency virus (HIV)-negative patients with cryptococcosis at 15 United States medical centers from 1990 through 1996 to understand the demographics, therapeutic approach, and factors associated with poor prognosi ...
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Journal articleTransplantation · August 15, 2001
BACKGROUND: Fungal infections remain an important cause of morbidity and mortality in lung transplant recipients. Aerosolized amphotericin B lipid complex (ABLC) may be more efficacious than conventional amphotericin B in the prevention of fungal infection ...
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Journal articleEMBO Rep · June 2001
Cyclophilin A is the target of the immunosuppressant cyclosporin A (CsA) and is encoded by a single unique gene conserved from yeast to humans. In the pathogenic fungus Cryptococcus neoformans, two homologous linked genes, CPA1 and CPA2, were found to enco ...
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Journal articleJ Med Chem · May 24, 2001
Dicationic 2,5-bis(4-guanidinophenyl)furans 5a-5f, 2,5-bis[4-(arylimino)aminophenyl]furans 6a-6b and 6e-6k, and 2,5-bis[4-(alkylimino)aminophenyl]furans 6c-6d have been synthesized starting from 2,5-bis[tri-n-butylstannyl]furan. Thermal melting studies wit ...
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Journal articleMol Microbiol · May 2001
The polysaccharide capsule surrounding Cryptococcus neoformans comprises manose, xylose and glucuronic acid, of which mannose is the major constituent. The GDP-mannose biosynthesis pathway is highly conserved in fungi and consists of three key enzymes: pho ...
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Journal articleMol Cell Biol · May 2001
Cryptococcus neoformans is an opportunistic fungal pathogen that infects the human central nervous system. This pathogen elaborates two specialized virulence factors: the antioxidant melanin and an antiphagocytic immunosuppressive polysaccharide capsule. A ...
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Journal articleGenes Dev · January 15, 2001
Cryptococcus neoformans is a leading cause of life-threatening fungal infection in immunocompromised patients. Inositol-phosphoryl ceramide synthase 1 (Ipc1) is a fungus-specific enzyme, encoded by the essential IPC1 gene, that catalyzes the formation of c ...
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Journal articleMol Microbiol · January 2001
The human pathogenic fungus Cryptococcus neoformans secretes a phospholipase enzyme that demonstrates phospholipase B (PLB), lysophospholipase hydrolase and lysophospholipase transacylase activities. This enzyme has been postulated to be a cryptococcal vir ...
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Journal articleProc Natl Acad Sci U S A · December 19, 2000
Cryptococcus neoformans is an opportunistic fungal pathogen with a defined sexual cycle involving mating between haploid MATa and MATalpha cells. Here we describe the isolation of part of the MATa mating-type locus encoding a Ste20 kinase homolog, Ste20a. ...
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Journal articleJ Antimicrob Chemother · November 2000
Safety and efficacy of quinupristin-dalfopristin (an injectable streptogramin antibiotic) were evaluated in the treatment of a variety of infections due to methicillin-resistant Staphylococcus aureus (MRSA) in patients either intolerant of or failing prior ...
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Journal articlePharmacotherapy · November 2000
Invasive fungal infections are seen with growing frequency, likely due to increases in numbers of patients at risk of infection. Optimal selection and dosing of antifungal agents are important, as these infections are often refractory to available therapy. ...
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Journal articleClinical Microbiology Newsletter · August 15, 2000
With the molecular tools available for gene manipulation in pathogenic fungi and the rapid development of functional genomics and genome sequencing, the potential to understand the virulence composite of fungal pathogens has never been greater. Virulence g ...
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Journal articleClinical Microbiology Newsletter · August 1, 2000
In this first of a two-part article, the authors begin by discussing the general concepts of fungal virulence as well as host factors and fungal-specific factors that may contribute to the development of human disease. This discussion is followed by a desc ...
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Journal articleEMBO J · July 17, 2000
Calcineurin is the conserved target of the immunosuppressants cyclosporin A and FK506. Using the yeast two-hybrid system, we identified a novel calcineurin binding protein, CBP1, from the pathogenic fungus Cryptococcus neoformans. We show that CBP1 binds t ...
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Journal articleExpert Opinion on Therapeutic Targets · June 1, 2000
With the increasing number of immunocompromised hosts and advances in medical technology there has been a concomitant rise in the number of cases of invasive fungal infections. Novel approaches for the discovery of new antifungal targets and their inhibito ...
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Journal articleMol Microbiol · April 2000
Cryptococcus neoformans is a basidiomycete yeast and opportunistic human pathogen of increasing clinical importance due to the increasing population of immunocompromised patients. To further investigate signal transduction cascades regulating fungal pathog ...
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Journal articleOtolaryngol Clin North Am · April 2000
The incidence of fungal infections continues to rise as the population of immunocompromised individuals increases. Despite the enlarging numbers of infections, there are only a few antifungal agents for treatment of deep-seated, invasive infections. These ...
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Journal articleClin Infect Dis · April 2000
An 8-person subcommittee of the National Institute of Allergy and Infectious Diseases (NIAID) Mycoses Study Group evaluated available data on the treatment of cryptococcal disease. Opinion regarding optimal treatment was based on personal experience and in ...
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Journal articleAntimicrob Agents Chemother · March 2000
Cryptococcus neoformans is an opportunistic fungal pathogen that causes life-threatening infections of the central nervous system. Existing therapies include amphotericin B, fluconazole, and flucytosine, which are limited by toxic side effects and the emer ...
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Journal articleInfect Immun · February 2000
Urease catalyzes the hydrolysis of urea to ammonia and carbamate and has been found to be an important pathogenic factor for certain bacteria. Cryptococcus neoformans is a significant human pathogenic fungus that produces large amounts of urease; thus we w ...
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Journal articleAntimicrob Agents Chemother · January 2000
Cyclosporine (CsA) is an immunosuppressive and antimicrobial drug which, in complex with cyclophilin A, inhibits the protein phosphatase calcineurin. We recently found that Cryptococcus neoformans growth is resistant to CsA at 24 degrees C but sensitive at ...
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Journal articleMol Cell Biol · January 2000
Cryptococcus neoformans is an opportunistic fungal pathogen with a defined sexual cycle. The gene encoding a heterotrimeric G-protein beta subunit, GPB1, was cloned and disrupted. gpb1 mutant strains are sterile, indicating a role for this gene in mating. ...
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Journal articleAnn Transplant · 2000
OBJECTIVES: Anastomotic infections are an uncommon but potentially devastating complication after lung transplantation. The incidence, microbiology, predisposing factors, and clinical outcomes of anastomotic infections have not been well described. METHODS ...
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Journal articleMed Mycol · 2000
Infection models with animals whose immune systems have been selectively altered by neutralization of endogenous cytokines or by deletion of a gene have provided a valuable means to study the function of cells or cytokines in the context of complex multidi ...
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Journal articleSemin Neurol · 2000
Fungi provide many benefits to humans. However, some of these fungi have the ability to become human pathogens. All the major fungal pathogens can produce meningitis. From the common cryptococcal meningitis to the rare fungal meningitis caused by a dimorph ...
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Journal articleAIDS Res Hum Retroviruses · December 10, 1999
The high frequency of oropharyngeal candidiasis in immunocompromised patients has led many institutions to develop protocols to guide the use of antifungal agents in the treatment of this opportunistic infection. However, few specific recommendations have ...
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Journal articleAntimicrob Agents Chemother · December 1999
The activities of a series of camptothecin and nitidine derivatives that might interact with topoisomerase I were compared against yeast and cancer cell lines. Our findings reveal that structural modifications to camptothecin derivatives have profound effe ...
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Journal articleGenetics · December 1999
Cryptococcus neoformans is a fungal pathogen that causes meningitis in immunocompromised hosts. The organism has a known sexual cycle, and strains of the MATalpha mating type are more virulent than isogenic MATa strains in mice, and they are more common in ...
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Journal articleAIDS Res Hum Retroviruses · November 1, 1999
Oropharyngeal candidiasis is the most common opportunistic infection seen in patients infected with the human immunodeficiency virus (HIV). As HIV disease progresses and immunosuppression worsens, the incidence and severity of oropharyngeal candidiasis inc ...
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Journal articleClin Microbiol Rev · October 1999
Recent evolutionary studies reveal that microorganisms including yeasts and fungi are more closely related to mammals than was previously appreciated. Possibly as a consequence, many natural-product toxins that have antimicrobial activity are also toxic to ...
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Journal articleDrug Resist Updat · August 1999
Cryptococcus neoformans has become a major opportunistic fungal pathogen worldwide. Successful treatment of invasive disease with this fungus has used amphotericin B, flucytosine and various azoles. However, treatment failures continue to occur for a varie ...
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Journal articleJ Infect Dis · August 1999
The pathophysiology of oropharyngeal candidiasis in patients infected with human immunodeficiency virus (HIV) type 1 is poorly understood. Association between oropharyngeal yeast carriage and various clinical factors in HIV-1-infected patients was studied ...
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Journal articleJ Antimicrob Chemother · August 1999
We investigated the in-vitro activity of three selected dicationic aromatic compounds for nine clinical isolates of Cryptococcus neoformans and 93 clinical isolates of Candida spp., representing 12 different species, using a broth macrodilution method foll ...
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Journal articleMol Cell Biol · June 1999
Cryptococcus neoformans is a fungal pathogen that causes meningitis in patients immunocompromised by AIDS, chemotherapy, organ transplantation, or high-dose steroids. Current antifungal drug therapies are limited and suffer from toxic side effects and drug ...
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Journal articleGenetics · May 1999
Topisomerase I is the target of several toxins and chemotherapy agents, and the enzyme is essential for viability in some organisms, including mice and drosophila. We have cloned the TOP1 gene encoding topoisomerase I from the opportunistic fungal pathogen ...
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Journal articleAntimicrob Agents Chemother · May 1999
The sterol 14-demethylase P450 (CYP51) of a fluconazole-resistant isolate of Candida albicans, DUMC136, showed reduced susceptibility to this azole but with little change in its catalytic activity. Twelve nucleotide substitutions, resulting in four amino a ...
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Journal articleInfect Immun · April 1999
Synthetic green fluorescent protein (GFP) was used as a reporter to detect differential gene expression in the pathogenic fungus Cryptococcus neoformans. Promoters from the C. neoformans actin, GAL7, or mating-type alpha pheromone (MFalpha1) genes were fus ...
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Journal articleMycopathologia · 1999
Cryptococcus neoformans is a basidiomycete that can cause life-threatening meningoencephalitis in patients with and without impaired immune function. Cryptococcosis is usually an opportunistic infection in patients with compromised immunity as a consequenc ...
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Journal articleCurrent Opinion in Critical Care · January 1, 1999
Invasive fungal infections in severely ill hospitalized patients are increasing prevalent. Intense efforts are focused on the development of novel antifungal agents as well as improvements in the safety profile of pre-existing agents. New antifungal agents ...
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Journal articleJ Bacteriol · January 1999
Cryptococcal meningitis is a fungal infection, caused by Cryptococcus neoformans, which is prevalent in immunocompromised patient populations. Treatment failures of this disease are emerging in the clinic, usually associated with long-term treatment with e ...
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Journal articleJournal of Medical and Veterinary Mycology · December 1, 1998
Cryptococcus neoformans represents a model organism for the study of virulence and the host response. In this discussion, there is a focus on the genetic, molecular, and biochemical aspects of C. neoformans as it interacts with the host. Investigations int ...
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Journal articlePathology · November 1998
Over the past two decades there has been a remarkable increase in the incidence of invasive fungal infections. Molecular methods, such as karyotyping, restriction analysis and polymerase chain reaction (PCR), have now been applied to improve our current un ...
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Journal articleFungal Genet Biol · October 1998
The basidiomycetous yeast Cryptococcus neoformans is a human pathogen. Several phenotypes of this organism are defined as virulence traits including the polysaccharide capsule, melanin, and the ability to grow at 37 degreesC. The signaling pathways regulat ...
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Journal articleJ Heart Lung Transplant · October 1998
Anastomotic infection is an uncommon but potentially life-threatening complication after lung transplantation. We recently encountered three lung transplant recipients with invasive candidal anastomotic infection. Two patients were admitted with dyspnea an ...
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Journal articleAntimicrob Agents Chemother · October 1998
Multiple isolates of Cryptococcus neoformans, including those with fluconazole resistance, were tested to assess the in vitro activity of the new triazole TAK-187. MICs of TAK-187 were at least eightfold lower than those of fluconazole, and fungicidal conc ...
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Journal articleAntimicrob Agents Chemother · October 1998
Twenty analogues of pentamidine, 7 primary metabolites of pentamidine, and 30 dicationic substituted bis-benzimidazoles were screened for their inhibitory and fungicidal activities against Candida albicans and Cryptococcus neoformans. A majority of the com ...
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Journal articleAntimicrob Agents Chemother · October 1998
Aromatic dicationic compounds possess antimicrobial activity against a wide range of eucaryotic pathogens, and in the present study an examination of the structures-functions of a series of compounds against fungi was performed. Sixty-seven dicationic mole ...
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Journal articleClin Infect Dis · June 1998
The safety and antifungal efficacy of amphotericin B lipid complex (ABLC) were evaluated in 556 cases of invasive fungal infection treated through an open-label, single-patient, emergency-use study of patients who were refractory to or intolerant of conven ...
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Journal articleArch Biochem Biophys · March 1, 1998
Comparative studies of 5-aminoimidazole ribonucleotide (AIR) carboxylases from Escherichia coli and Gallus gallus have identified this central step in de novo purine biosynthesis as a case for unusual divergence in primary metabolism. Recent discoveries es ...
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Journal articleAm J Clin Pathol · January 1998
Nontraditional human pathogenic fungi, including Fusarium, Paecilomyces, and Acremonium species, have been increasingly documented as agents of infection in immunocompromised patients and, occasionally, in normal hosts. Although definitive identification o ...
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Journal articlePharmacotherapy · 1998
Liposomal formulations of amphotericin B are designed to maintain therapeutic efficacy of amphotericin B deoxycholate while reducing its associated toxicities. In three patients chest discomfort occurred during planned 1-hour infusions of liposomal amphote ...
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Journal articleMed Mycol · 1998
Cryptococcus neoformans represents a model organism for the study of virulence and the host response. In this discussion, there is a focus on the genetic, molecular, and biochemical aspects of C. neoformans as it interacts with the host. Investigations int ...
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Journal articleGenes Dev · December 1, 1997
This study explores signal transduction pathways that function during mating and infection in the opportunistic, human fungal pathogen Cryptococcus neoformans. The gene encoding a G-protein alpha subunit homolog, GPA1, was disrupted by homologous recombina ...
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Journal articleClinical Infectious Diseases · December 1, 1997
Cryptococcosis (crypto) is an important invasive fungal pathogen among HIV infected pts. Since the development of fluconazole (Flu) and itraconazole (Itra), the treatment of crypto has evolved, largely based on studies in these pts. In an effort to better ...
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Journal articleClinical Infectious Diseases · December 1, 1997
Virulence of the pathogenic fungus Cryptococcus neoformans is determined by several factors, including the production of a polysaccharide capsule, the elaboration of melanin within the cell wall, and growth at 37°. A gene encoding a cryptococcal G-protein ...
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Journal articleClinical Infectious Diseases · December 1, 1997
Lipid-based antifungal products have been developed, and some may reduce nephrotoxicily and infusion-related side-effects, compared to standard amphotericin B (AmB). However, questions remain about optimal daily and cumulative dosing strategies, and no pub ...
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Journal articleJournal of Medical and Veterinary Mycology · November 24, 1997
An expression plasmid carrying a heterologous gene fusion between the Cryptococcus neoformans actin promoter and the Escherichia coli reporter gene, LACZ, was constructed to study actin regulation in C. neoformans. Two randomly stable transformants, design ...
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Journal articleDrugs · November 1997
Medical advances have led to increased numbers of immunocompromised patients living longer. Coinciding with this increase in the immunocompromised patient population is an increase in the number of clinically significant fungal infections. Unfortunately, w ...
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Journal articleAntimicrob Agents Chemother · August 1997
The in vitro activity of the new antifungal drug pneumocandin L-743,872 against 55 isolates of clinically important molds was examined by an adapted macrobroth dilution method for yeasts. Pneumocandin L-743,872 exhibited in vitro antifungal activity agains ...
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Journal articleEMBO J · May 15, 1997
Cyclosporin A (CsA) and FK506 are antimicrobial, immunosuppressive natural products that inhibit signal transduction. In T cells and Saccharomyces cerevisiae, CsA and FK506 bind to the immunophilins cyclophilin A and FKBP12 and the resulting complexes inhi ...
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Journal articleAntimicrob Agents Chemother · January 1997
The immunosuppressant FK506 (tacrolimus) is an antifungal natural product macrolide that suppresses the immune system by blocking T-cell activation. In complex with the intracellular protein FKBP12, FK506 inhibits calcineurin, a Ca(2+)-calmodulin-dependent ...
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Journal articleSeminars in Respiratory and Critical Care Medicine · January 1, 1997
In this article we review the salient features of several invasive mycoses seen with increasing frequency in this age of immunocompromised hosts. Included are descriptions of zygomycosis, trichosporonosis, and fusariosis. Invasive disease due to the pigmen ...
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Journal articleJ Med Vet Mycol · 1997
An expression plasmid carrying a heterologous gene fusion between the Cryptococcus neoformans actin promoter and the Escherichia coli reporter gene, LACZ, was constructed to study actin regulation in C. neoformans. Two randomly stable transformants, design ...
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Journal articleJ Bacteriol · September 1996
The Mtl gene from Cryptococcus neoformans, which confers the ability of Saccharomyces cerevisiae Sc4l YJO to grow on mannitol with substantial NAD-dependent mannitol dehydrogenase activity, was identified. Purifications and characterizations of this enzyme ...
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Journal articleAntimicrob Agents Chemother · August 1996
Multiple isolates of Cryptococcus neoformans were tested to compare the in vitro activity of a new triazole, SCH56592, with those of amphotericin B, fluconazole, and itraconazole, MICs of each drug were determined, and minimum fungicidal concentrations of ...
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Journal articleJ Exp Med · August 1, 1996
To assess the relationship between melanin production by Cryptococcus neoformans and virulence on a molecular basis, we asked: (a) is CNLAC1, the laccase structural gene of C. neoformans, expressed in vivo?; (b) can mouse virulence be restored to cnlac1 (M ...
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Journal articleAntimicrob Agents Chemother · July 1996
Fungal virulence genes have now met the age of molecular pathogenesis. The definition of virulence genes needs to be broad so that it encompasses the focus on molecular antifungal targets and vaccine epitopes. However, in the broad but simple definition of ...
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Journal articlePlast Reconstr Surg · June 1996
Isolated fungal soft-tissue infections are uncommon but may cause severe morbidity or mortality among transplant recipients and other immunosuppressed patients. Twelve immunocompromised patients illustrating three patterns of infection were treated recentl ...
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Journal articleJ Hematother · June 1996
The use of hematopoietic support for patients receiving high-dose chemotherapy has increased over the past 10 years. Various quality controls are performed on the hematopoietic cells, including microbiologic cultures. There is considerable expense associat ...
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Journal articleMedicine (Baltimore) · May 1996
We reviewed the pattern and incidence of fungal infections in patients undergoing lung and heart-lung transplantation at Duke University Medical Center from September 1992 until August 1995, and present here 9 illustrative cases. Of the 73 lung and heart-l ...
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Journal articleClin Infect Dis · May 1996
Frequent and prolonged exposure of immunocompromised patients to a variety of environmental conditions has resulted in the recognition of infections with new fungal opportunists. Infections with fungi such as Fusarium species, Paecilomyces lilacinus, Acrem ...
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Journal articleJ Clin Microbiol · May 1996
Disseminated Acremonium strictum infection in a neutropenic patient is reported. Positive fecal cultures preceded positive cutaneous and blood cultures by 18 and 21 days, respectively, which suggests gastrointestinal colonization and invasion as initiating ...
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Journal articleAIDS · March 1996
OBJECTIVE: To examine the impact of continuous versus intermittent fluconazole therapy on fungal colonization and fluconazole resistance in the oropharynx of HIV-infected patients. DESIGN: Case-control study. SETTING: Duke University Adult Infectious Disea ...
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Journal articleJ Med Vet Mycol · 1996
Present transformation systems for Cryptococcus neoformans depend on complementation of auxotrophic mutants. We have developed a dominant selection system for transformation of wild-type strains of cryptococci in which resistance to the antibiotic hygromyc ...
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Journal articlePharmacotherapy · 1996
Enterococci are the second most common cause of hospital-acquired infections, and drug resistance among these organisms is a growing problem. Vancomycin-resistant enterococci (VRE) now account for 7.9% of the nosocomial enterococcal infections. There is no ...
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Journal articleClin Infect Dis · January 1996
Thirty patients with documented sporotrichosis were treated with 200-800 mg of fluconazole daily. Fourteen patients had lymphocutaneous infection; only five (36%) of these patients had any underlying illnesses. Sixteen patients had osteoarticular or viscer ...
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Journal articleJournal of Medical and Veterinary Mycology · January 1, 1996
Present transformation systems for Cryptococcus neoformans depend on complementation of auxotrophic mutants. We have developed a dominant selection system for transformation of wild-type strains of cryptococci in which resistance to the antibiotic hygromyc ...
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Journal articleCanadian Journal of Botany · December 31, 1995
Fungal infections in man and animals have a significant impact on health. However, there are only a few antifungal agents available for treatment of invasive mycoses. Further understanding of fungal molecular pathogenesis in collaboration with bioc ...
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Journal articleClin Microbiol Rev · October 1995
Although Cryptococcus neoformans and cryptococcosis have existed for several millennia, a century has passed since the discovery of this encapsulated yeast and its devastating disease. With the advent of the AIDS pandemic, cryptococcal meningitis has emerg ...
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Journal articleAnn Intern Med · September 1, 1995
OBJECTIVE: To describe the association between fluconazole and reversible alopecia. DESIGN: A retrospective survey of 1) patients enrolled in NIAID Mycoses Study Group (MSG) protocols involving the long-term use of fluconazole for treatment of endemic myco ...
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Journal articleJ Am Acad Dermatol · February 1995
A 75-year-old woman being treated with prednisone and methotrexate had a 5.5 x 2.2 cm ulcer on the leg. A biopsy specimen revealed suppurative, granulomatous dermal inflammation with necrotic areas of septate, branching hyphae containing brown pigment. Cul ...
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Journal articleJ Med Vet Mycol · 1995
Using heterologous probing of a genomic library, we have cloned and sequenced the actin gene from the pathogenic yeast Cryptococcus neoformans. The actin gene is 1371 bp in length, and exists as a single copy, as is the case for all fungi studied to date. ...
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Journal articleProc Natl Acad Sci U S A · December 6, 1994
Cryptococcus neoformans is a major cause of systemic fungal infection in immunocompromised patients. Myristoyl-CoA:protein N-myristoyltransferase (Nmt) catalyzes the transfer of myristate (C14:0) from myristoyl-CoA to the N-terminal glycine of a subset of ...
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Journal articleClin Infect Dis · November 1994
This report describes four skin-puncture accidents with needles that were heavily contaminated with Cryptococcus neoformans. In one accident, delayed administration of antifungal drugs resulted in a granuloma of the finger. In the other three accidents, no ...
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Journal articleJ Clin Microbiol · September 1994
Allergic fungal sinusitis is a common disease that results from a hypersensitivity reaction mounted by the host against fungi living in the paranasal sinuses. We have recently treated a patient with allergic fungal sinusitis due to a Nodulisporium species. ...
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Journal articleAm J Med · August 1994
BACKGROUND: Invasive aspergillosis is the most common invasive mould infection and a major cause of mortality in immunocompromised patients. Response to amphotericin B, the only antifungal agent licensed in the United States for the treatment of aspergillo ...
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Journal articleJ Clin Oncol · May 1994
PURPOSE: We studied the effectiveness of prophylactic oral ciprofloxacin and rifampin on fever prevention in patients undergoing autologous bone marrow transplantation (ABMT) for breast cancer. Furthermore, we evaluated the toxicity and efficacy of empiric ...
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Journal articleJ Antimicrob Chemother · January 1994
In the quest for safer and more effective antifungal agents, amphotericin B (AMB) has been placed in a variety of lipid preparations. In this study, we examined the efficacy of amphotericin B lipid complex (ABLC) on experimental cryptococcal meningitis and ...
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Journal articleJ Clin Microbiol · December 1993
Karyotyping of Cryptococcus neoformans var. neoformans can be used as an epidemiological tool for C. neoformans infections. In this study of over 40 isolates from both clinical and environmental sources, 90% had a unique chromosome banding by pulsed-field ...
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Journal articleInfect Control Hosp Epidemiol · December 1993
OBJECTIVE: To determine the cause of meningitis associated with Cryptococcus neoformans in two patients with recent ventricular-peritoneal (VP) shunt placement. DESIGN: A retrospective review of materials, records, and concurrent cases of VP shunt procedur ...
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Journal articleAntimicrob Agents Chemother · November 1993
Yeast strains isolated from the oropharynx of 87 consecutive patients infected with human immunodeficiency virus type 1 were examined for in vitro susceptibility to fluconazole. Candida albicans was isolated from 73 patients. Fifty-one patients had receive ...
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Journal articleInfect Immun · October 1993
A cryptococcal meningitis model in corticosteroid-treated rabbits was used to assess the requirement for the phosphoribosylaminoimidazole gene (ADE2) for virulence of Cryptococcus neoformans. A wild-type strain (H99), an ade2 auxotroph of H99 (M001), and a ...
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Journal articleAm J Med · September 1993
PURPOSE: To describe the clinical presentation and outcomes of treatment with itraconazole in patients with sporotrichosis. METHODS: A culture for Sporothrix schenckii or compatible histopathology was required for inclusion in the study. Patients with both ...
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Journal articleAntimicrob Agents Chemother · April 1993
Itraconazole is a broad-spectrum potent triazole antifungal agent. Its efficacy in treatment cannot always be explained by body fluid drug levels. In this study, itraconazole was shown to accumulate into host cells. Its intracellular accumulation in cells ...
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Journal articleJ Bacteriol · March 1993
A transformation scheme for Cryptococcus neoformans to yield high-frequency, integrative events was developed. Adenine auxotrophs from a clinical isolate of C. neoformans serotype A were complemented by the cryptococcal phosphoribosylaminoimidazole carboxy ...
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Journal articleCurrent Opinion in Infectious Diseases · January 1, 1993
Fungi are important infectious agents in the immunocompromised population. The increasing number of patients with fungal infections has led to a reevaluation of the epidemiology and treatment of these pathogens. Recently we have seen the emergence of sever ...
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Journal articleJ Med Vet Mycol · 1993
This communication lists fungi reported to cause invasive infection in patients with AIDS. It excludes the well known and common fungi that infect these patients such as Candida, Cryptococcus, Histoplasma, Coccidioides and Aspergillus. It is likely that th ...
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Journal articleGene · December 1, 1992
We have cloned the phosphoribosyl anthranilate isomerase (PRAI)-encoding gene (TRP1) of Cryptococcus neoformans by genetic complementation in Saccharomyces cerevisiae. Sequence analysis of this gene revealed it to be 939 bp in length, and without known pro ...
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Journal articleCurrent Opinion in Infectious Diseases · June 19, 1992
Fungal infections remain important opportunistic pathogens, particularly in immunocompromised individuals. A variety of fungal pathogens have been identified that cause infection in the growing population of immunocompromised patients. Over the last year, ...
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Journal articleJ Infect Dis · May 1992
This study assessed the efficacy, toxicity, and pharmacology of low-dose amphotericin B given prophylactically to patients (serum concentrations of 0.2-0.4 microgram/ml) undergoing bone marrow transplantation. Yeast isolates from patients' oropharyngeal ar ...
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Journal articleCornea · March 1992
We report the development of fungal scleritis in a 53-year-old man after uncomplicated cataract surgery. Histopathology and culture identified the organism as Aspergillus flavus. Clinically, the patient worsened on treatment with oral ketoconazole and topi ...
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Journal articleDrug Saf · 1992
Systemic administration of antifungal agents for invasive mycoses has dramatically increased over the past 10 years in many fields of medicine. The increase has been due both to an increasing immune compromised population and to potent antibacterial agents ...
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Journal articleJ Med Vet Mycol · 1992
Many hospitalized patients are at risk for fungal infections. In order to characterize present clinical laboratory experience and facilities for diagnosis and management of fungal infections, a nationwide survey of laboratory diagnostic methodologies was c ...
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Journal articleRev Infect Dis · 1991
The use of potent broad-spectrum antibacterial agents, the increasing number of immunocompromised hosts, and the use of invasive treatment modalities have exacerbated the problems involved in the management of nosocomial fungal infection. The hospital reco ...
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Journal articleJ Antimicrob Chemother · September 1990
We studied the pharmacokinetics and efficacy of BAY R3783, a new antifungal azole compound, in rabbits and compared it with fluconazole and itraconazole. BAY R3783 has at least two active metabolites, BAY U3624 and BAY U3625. We measured serum concentratio ...
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Journal articleInfect Immun · July 1990
The role of antibody in protection against infection with Cryptococcus neoformans is undefined. In this paper we describe the development of opsonic activity in the cerebrospinal fluid (CSF) of rabbits in response to cryptococcal meningitis. The opsonin ap ...
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Journal articleInfect Immun · June 1990
We studied the ability of Cryptococcus neoformans to produce the hexitol D-mannitol in vitro and in rabbits with experimental meningitis. Twelve of twelve human isolates of C. neoformans produced D-mannitol in yeast nitrogen base plus 1% glucose and releas ...
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Journal articleSurg Gynecol Obstet · 1990
Modern surgery continues to make significant therapeutic advances, and a major component in the adjunctive care allowing these improved procedures is the successful use of broad-spectrum antibacterials. However, the widespread administration of potent anti ...
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Journal articleRev Infect Dis · 1990
Fluconazole is a second-generation azole compound with broad-spectrum antifungal activity. It has been examined in several animal models emphasizing important clinical sites of infection with common yeast pathogens. The drug has an excellent pharmacokineti ...
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Journal articleJ Clin Invest · January 1990
L-arginine is required for the fungistatic action of murine macrophages in vitro. To further investigate this requirement, L-arginine metabolism by macrophages was measured under conditions where fungistasis either succeeded or failed. Macrophage fungistas ...
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Journal articleAntimicrob Agents Chemother · October 1989
We studied the pharmacokinetics and in vivo antifungal action of SCH39304, a new antifungal azole compound, in rabbits. It crossed the blood-cerebrospinal fluid barrier in the presence or absence of meningeal inflammation, reaching approximately 60% of the ...
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Journal articleAntimicrob Agents Chemother · October 1989
The efficacy of cilofungin treatment of experimental disseminated candidiasis in rabbits was examined. Cilofungin treatment reduced yeast counts, especially in the kidney, with activity comparable to that of amphotericin B. The peak level of cilofungin in ...
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Journal articleInfect Immun · September 1989
Chromosomes from Cryptococcus neoformans, an encapsulated yeast pathogen, were separated by contour-clamped homogeneous field gel electrophoresis. Seven strains representing all four serotypes were studied. It was found that each strain had a unique, repro ...
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Journal articleInfect Dis Clin North Am · March 1989
Cryptococcosis emphasizes the importance of the host-parasite interaction. C. neoformans has developed factors to invade the host but generally requires host immune dysfunction to establish infection. Cryptococcal infection has increased as our immunocompr ...
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Journal articleSouth Med J · February 1989
This report describes a case of Candida tropicalis intervertebral diskitis successfully treated with a brief course of amphotericin B followed by a longer course of ketoconazole. Candida tropicalis is an increasingly frequent pathogen in immunocompromised ...
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Journal articleRev Infect Dis · 1989
Actinobacillus actinomycetemcomitans is a small fastidious gram-negative coccobacillus that fails to grow on MacConkey's agar. Slow growth in broth may lead to delays in diagnosis. First described in 1912, A. actinomycetemcomitans has been recognized since ...
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Journal articleRev Infect Dis · 1989
Cyclosporine is a potent immunosuppressive agent that selectively impairs T cell function. The steady growth of its importance makes knowledge of its activity and effects clinically relevant. The intrinsic antibiotic activity of cyclosporine is limited; al ...
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Journal articleRev Infect Dis · 1989
We present four cases of disseminated zygomycosis that illustrate the characteristic clinical syndromes and natural history of this infection. The zygomycetes affect individuals immunosuppressed by age, drug therapy, or underlying disease. A previous splen ...
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Journal articleNeurosurgery · September 1988
We report successful treatment of a cryptococcal ventriculoatrial shunt infection with antifungal therapy without shunt removal. ...
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Journal articleInfect Immun · April 1988
The functional abilities of macrophages from cerebrospinal fluid (CSF) have so far been little studied. We examined the acquisition of activation characteristics by CSF macrophages during the course of experimental cryptococcal meningitis. CSF macrophages ...
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Journal articleJ Clin Invest · April 1988
The microbiostatic action of macrophages was studied in vitro employing peritoneal cytotoxic macrophages (CM) from mice acting against Cryptococcus neoformans cultured in Dulbecco's medium with 10% dialyzed fetal bovine serum. Fungistasis was measured usin ...
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Journal articleEur J Clin Microbiol Infect Dis · February 1988
LY121019 is a new semisynthetic lipopeptide antifungal agent with potent in vitro fungicidal activity against multiple clinical strains of Candida albicans and Candida tropicalis but is 10-100 fold less active against Torulopsis glabrata and Candida paraps ...
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Journal articleJ Electron Microsc Tech · January 1988
This review examines an important bacterial infection in acquired immunodeficiency syndrome (AIDS). Despite occasional infections with bacteria such as Streptococcus pneumoniae, Haemophilus influenzae, Salmonella, and Nocardia in patients with AIDS, the pr ...
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Journal articleJ Infect Dis · August 1987
The activated macrophage may play a central role in host effector mechanisms against invading fungi. Here we demonstrate the importance of the activation state of murine macrophages for both fungistatic and fungicidal activity. Host factors such as gamma i ...
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Journal articleAm J Hosp Pharm · June 1987
A retrospective review of amphotericin B use in a tertiary-care medical center was conducted, and use patterns were evaluated. The pharmacy department audited the medical records of all patients who received amphotericin B during 1983. Of 179 patients who ...
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Journal articleInfect Immun · May 1987
Naegleria fowleri meningoencephalitis is usually fatal in humans despite treatment. As a new approach, we tested intracisternal passive immune therapy in rabbits with amebic meningoencephalitis by using antinaegleria immune serum, an immunoglobulin G fract ...
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Journal articleAntimicrob Agents Chemother · January 1987
We studied the penetration of three azole compounds, ketoconazole, itraconazole, and fluconazole, into the ocular tissues and fluids of rabbits in the presence and absence of ocular inflammation. Drug concentrations were compared with those found in serum ...
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Journal articleJ Immunol · July 15, 1986
Peritoneal macrophages from Mycobacterium bovis- or Toxoplasma gondii-infected mice cultured in vitro in Dulbecco's medium containing 10% fetal bovine serum (FBS) and endotoxin stopped replication of Cryptococcus neoformans for 30 hr, whereas yeast cells c ...
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Journal articleAntimicrob Agents Chemother · April 1986
Itraconazole and fluconazole, two new triazoles, were examined for their antifungal activity in rabbits. Fluconazole easily crossed the blood-cerebrospinal fluid barrier, and active drug was eliminated in high concentrations in the urine. On the other hand ...
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Journal articleJ Immunol · January 1986
Macrophage cytotoxicity for Cryptococcus neoformans was investigated by culturing mouse peritoneal macrophages with a thin-capsuled clone of cryptococcus under conditions permitting efficient phagocytosis. Yeast replication was quantitated by electronic pa ...
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Journal articleAntimicrob Agents Chemother · December 1985
Amphotericin B and N-D-ornithyl amphotericin B methyl ester were compared for therapeutic efficacies against experimentally induced cryptococcal meningitis and Candida albicans endocarditis with pyelonephritis in rabbits. Antifungal activity of the two pol ...
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Journal articleInfect Immun · October 1985
We studied the effects of cyclosporine on experimental cryptococcal meningitis. Like cortisone, cyclosporine depressed the highly effective defense mechanisms of normal rabbits against inoculated Cryptococcus neoformans, causing them to develop progressive ...
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Journal articleJ Clin Invest · August 1985
Cryptococcus neoformans is variably encapsulated in vitro, whereas in tissues it develops a large capsule. We observed that cells of a strain with thin capsules, when growing in a standard fungal culture medium, became heavily encapsulated when incubated i ...
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Journal articleJ Antimicrob Chemother · July 1985
We studied the penetration of two imidazoles (ketoconazole and vibunazole) and two triazoles (itraconazole and UK-49,858) into cerebrospinal fluid (CSF) of rabbits with and without meningitis. There were wide differences in degree of penetration of these d ...
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Journal articleUrology · May 1985
A recurrence of cryptococcosis sixteen years after the primary infection as a penile ulcer is reported. The clinical manifestations of genitourinary and skin involvement by cryptococci are discussed. The epidemiology, pathogenesis, diagnosis, and treatment ...
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Journal articleSabouraudia · February 1985
Cerebrospinal fluid from rabbits with chronic cryptococcal meningitis was tested for its chemotactic activity towards polymorphonuclear cells and monocytes. CSF chemotactic activity was present; it peaked 5-8 days after infection, coinciding with the time ...
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Journal articleRev Infect Dis · 1984
The course and outcome of combined treatment with amphotericin B and 5-fluorocytosine were analyzed in 17 patients with candida meningitis. Eleven patients were twelve months of age or younger; seven of these were neonates. All but two patients had underly ...
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Journal articleAnn Intern Med · September 1983
Fungal peritonitis is a rare complication in patients on continuous ambulatory peritoneal dialysis. We report five recent cases and their management. The fungi isolated were Candida albicans, C. parapsilosis, Exophiala jeanselmei, Drechslera spicifera, and ...
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Journal articleJ Antimicrob Chemother · July 1983
We studied the pharmacokinetics of N-formimidoyl thienamycin with and without a renal dipeptidase inhibitor in plasma and cerebrospinal fluid (CSF) of rabbits. Thienamycin reached a maximal concentration of 0.6 +/- 0.06 mg/l in the CSF of normal rabbits. W ...
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Journal articleAm J Clin Pathol · June 1983
A brain abscess caused by a new variety of Cladosporium trichoides occurred in a previously healthy man. A reversed T-suppressor/helper cell ratio was noted as the only immunologic abnormality. He required three surgical procedures, the last an occipital l ...
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Journal articleMedicine (Baltimore) · March 1983
Previous reports have emphasized that cryptococcemia is almost uniformly fatal. To define the clinical course and prognostic and therapeutic implications of cryptococcemia, we studied 15 patients treated at this medical center over the past 7 years. Crypto ...
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Journal articleLab Anim Sci · December 1982
Cerebrospinal fluid leukocytes from 48 apparently healthy New Zealand white rabbits were examined to define the number and types of cells present. The cerebrospinal fluid contained 0 to 7 leukocytes/mm3 (median 3/mm3). This small pool of mononuclear cells ...
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Journal articleJ Infect Dis · September 1982
Ketoconazole, amphotericin B, 5-fluorocytosine, and combinations of these drugs were compared as therapy for chronic cryptococcal meningitis in steroid-treated rabbits. Two hours after treatment of rabbits with meningitis with single drugs the mean cerebro ...
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Journal articleMedical Mycology · January 1, 1982
A procedure is described for the purification of basidiospores of Filobasidiella neoformans. The method involves the use of flow cytometry, and yields a suspension containing approximately 4 × 104 infective particles ml-1, of which greater than 95% are bas ...
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Journal articleRev Infect Dis · 1982
When given in combination, both trimethoprim and sulfamethoxazole penetrated well into the cerebrospinal fluid of rabbits with experimental pneumococcal meningitis, reaching concentrations that should have been adequate for synergistic killing of Streptoco ...
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Journal articleBr J Exp Pathol · December 1981
A model for chronic Cryptococcus neoformans meningitis in corticosteroid-treated rabbits was used to determine the influence of pre-formed agglutinating antibody to cryptococcal polysaccharide on the progress of this infection. Immunized rabbits developed ...
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Journal articleDrugs · 1981
To assess the potential value of cefoperazone in treating bacterial meningitis, its pharmacokinetics in the cerebrospinal fluid of rabbits were studied. Cefoperazone penetrated poorly into the cerebrospinal fluid of rabbits with uninflamed meninges, but in ...
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Journal articleSouth Med J · October 1980
A patient with mediastinitis caused by Streptococcus pyogenes and/or Staphylococcus aureus responded to antibiotic therapy without surgical intervention, although fever was prolonged and recovery slow. The medical and surgical management of mediastinitis i ...
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Journal articleAm J Pathol · October 1980
This paper describes the salient features of a new model for chronic cryptococcal meningitis in cortisone-treated rabbits. Normal rabbits soon recovered after intracisternal inoculation of Cryptococcus neoformans, but cortisone-treated animals developed ch ...
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Journal articleAntimicrob Agents Chemother · January 1980
To evaluate cotrimoxazole in the treatment of bacterial meningitis, we compared its action with that of ampicillin and chloramphenicol in experimental Haemophilus influenzae type b meningitis. Both trimethoprim and sulfamethoxazole penetrated well into the ...
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