Journal ArticleBiol Psychiatry · November 15, 2025
BACKGROUND: Although childhood trauma is an important risk factor for various diseases, the underlying biological mechanisms remain insufficiently understood. To deepen this understanding, we investigated the wide-spectrum metabolomic signature of childhoo ...
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Journal ArticleInt J Obes (Lond) · October 3, 2025
BACKGROUND: With the increasing prevalence of obesity and its negative consequences on health, weight management emerges as a priority for public health, especially in older adults, in whom obesity is linked to increased risks of chronic diseases such as c ...
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Journal ArticleBrain Behav Immun · October 2025
Preclinical studies have revealed that the microbiome broadly affects immune responses and deposition and/or clearance of amyloid-beta (Aβ) in mouse models of Alzheimer's disease (AD), but whether, and how, the microbiome shapes central and peripheral immu ...
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Journal ArticleAlzheimers Dement · October 2025
INTRODUCTION: Higher adherence to the Mediterranean-DASH (Dietary Approaches to Stop Hypertension) Intervention for Neurodegenerative Delay (MIND) diet has been associated with reduced Alzheimer's disease (AD) risk. This study assessed the validity of a br ...
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Journal ArticleMol Neurodegener · September 2, 2025
UNLABELLED: Alzheimer’s disease (AD) risk and progression are significantly influenced by APOE genotype with APOE4 increasing and APOE2 decreasing susceptibility compared to APOE3. While the effect of those genotypes was extensively studied on blood metabo ...
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Journal ArticleEBioMedicine · August 2025
BACKGROUND: Comprehensive lipidomic studies have demonstrated strong cross-sectional associations between the blood lipidome and late-onset Alzheimer's disease (AD) dementia and its risk factors, yet the longitudinal relationship between lipidome changes a ...
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Journal ArticleJAMA Neurol · July 1, 2025
IMPORTANCE: While clinical disease stages remained largely unchanged in the 2024 update of the Alzheimer disease (AD) criteria, tau-positron emission tomography (PET) was introduced as a core biomarker and its spatial extent was incorporated into the revis ...
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Journal ArticleAlzheimers Dement · July 2025
BACKGROUND: The gut microbiome is a potentially modifiable risk factor for Alzheimer's disease (AD); however, understanding of its composition and function regarding AD pathology is limited. METHODS: Shallow-shotgun metagenomics was used to analyze the fec ...
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Journal ArticleMetabolomics · May 10, 2025
BACKGROUND: Metabolic profiling of blood metabolites, particularly in plasma and serum, is vital for studying human diseases, human conditions, drug interventions and toxicology. The clinical significance of blood arises from its close ties to all human ce ...
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Journal ArticleJ Affect Disord · April 15, 2025
Metabolomics provides powerful tools that can inform about heterogeneity in disease and response to treatments. In this exploratory study, we employed an electrochemistry-based targeted metabolomics platform to assess the metabolic effects of three randoml ...
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Journal ArticleNat Commun · April 14, 2025
Brain imaging genomics has manifested considerable potential in illuminating the genetic determinants of human brain structure and function. This has propelled us to develop the GIANT (Genetically Informed brAiN aTlas) that accounts for genetic and neuroan ...
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Journal ArticleNat Commun · February 24, 2025
Impaired glucose uptake in the brain is an early presymptomatic manifestation of Alzheimer's disease (AD), with symptom-free periods of varying duration that likely reflect individual differences in metabolic resilience. We propose a systemic "bioenergetic ...
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Journal ArticleTransl Psychiatry · February 23, 2025
Acylcarnitines (ACs) are involved in bioenergetics processes that may play a role in the pathophysiology of depression. Previous genomic evidence identified four ACs potentially linked to depression risk. We carried forward these ACs and tested the associa ...
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Journal ArticleCommun Med (Lond) · January 9, 2025
BACKGROUND: Alzheimer's disease (AD) is a major neurodegenerative disorder with significant environmental factors, including diet and lifestyle, influencing its onset and progression. Although previous studies have suggested that certain diets may reduce t ...
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Journal ArticleMol Psychiatry · December 2024
Major Depressive Disorder (MDD) is a common, frequently chronic condition characterized by substantial molecular alterations and pathway dysregulations. Single metabolite and targeted metabolomics platforms have revealed several metabolic alterations in de ...
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Journal ArticleAlzheimers Dement · December 2024
BACKGROUND: Metabolic dysregulation is a hallmark of neurodegenerative diseases, including Alzheimer's disease (AD) and progressive supranuclear palsy (PSP). Although metabolic dysregulation is a common link between these two tauopathies, a comprehensive b ...
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Journal ArticleNpj Parkinson S Disease · December 1, 2024
Pathological forms of α-synuclein contribute to synucleinopathies, including Parkinson’s disease (PD). Most cases of PD arise from gene-environment interactions. Microbiome composition is altered in PD, and gut bacteria are causal to symptoms in animal mod ...
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Journal ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association · December 1, 2024
BACKGROUND: Alzheimer's disease (AD) risk and progression are significantly influenced by ApoE genotypes, with ApoE4 increasing and ApoE2 decreasing the susceptibility compared to ApoE3. Understanding metabolic pathways affected by ApoE genotypes will help ...
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Journal ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association · December 1, 2024
BACKGROUND: Bile acids (BA) are steroids regulating nutrient absorption, energy metabolism, and mitochondrial function, and serve as important signaling molecules with a role in the gut-brain axis. The composition of BAs in humans changes with diet type an ...
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Journal ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association · December 1, 2024
BACKGROUND: The GI tract is home to approximately 70% of the body's immune cells, >100 million enteric neurons, and ∼40 trillion bacteria. This co-localization of myriad immune, neural and bacterial cells creates complex interactions that regulate almost e ...
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Journal ArticleJ Neurosci · October 9, 2024
Alzheimer's disease (AD) and Alzheimer's disease-related dementias (ADRDs) are broad-impact multifactorial neurodegenerative diseases. Their complexity presents unique challenges for developing effective therapies. This review highlights research presented ...
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Journal ArticleCommun Biol · September 6, 2024
Recent advances in high-throughput measurement technologies have enabled the analysis of molecular perturbations associated with disease phenotypes at the multi-omic level. Such perturbations can range in scale from fluctuations of individual molecules to ...
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Journal ArticleJ Lipid Res · September 2024
The rapid increase in lipidomic studies has led to a collaborative effort within the community to establish standards and criteria for producing, documenting, and disseminating data. Creating a dynamic easy-to-use checklist that condenses key information a ...
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Journal ArticleSci Rep · July 29, 2024
Inflammation is an important factor in Alzheimer's disease (AD). An NMR measurement in plasma, glycoprotein acetyls (GlycA), captures the overall level of protein production and glycosylation implicated in systemic inflammation. With its additional advanta ...
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Journal ArticleEBioMedicine · July 2024
BACKGROUND: Metabolic ageing biomarkers may capture the age-related shifts in metabolism, offering a precise representation of an individual's overall metabolic health. METHODS: Utilising comprehensive lipidomic datasets from two large independent populati ...
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Journal ArticleAlzheimers Res Ther · June 7, 2024
BACKGROUND: Evidence links lifestyle factors with Alzheimer's disease (AD). We report the first randomized, controlled clinical trial to determine if intensive lifestyle changes may beneficially affect the progression of mild cognitive impairment (MCI) or ...
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Journal ArticleAnalytical Chemistry · June 4, 2024
Metabolites from feces provide important insights into the functionality of the gut microbiome. As immediate freezing is not always feasible in gut microbiome studies, there is a need for sampling protocols that provide the stability of the fecal metabolom ...
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Journal ArticleAlzheimers Dement · June 2024
INTRODUCTION: Increasing evidence suggests that metabolic impairments contribute to early Alzheimer's disease (AD) mechanisms and subsequent dementia. Signals in metabolic pathways conserved across species can facilitate translation. METHODS: We investigat ...
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Journal ArticleSci Rep · March 13, 2024
In this study, we aimed to understand the potential role of the gut microbiome in the development of Alzheimer's disease (AD). We took a multi-faceted approach to investigate this relationship. Urine metabolomics were examined in individuals with AD and co ...
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Journal ArticleAdv Sci (Weinh) · March 2024
Sex disparities in serum bile acid (BA) levels and Alzheimer's disease (AD) prevalence have been established. However, the precise link between changes in serum BAs and AD development remains elusive. Here, authors quantitatively determined 33 serum BAs an ...
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Journal ArticleEur Child Adolesc Psychiatry · February 2024
This study investigates early onset of treatment response as predictor of symptomatic and functional outcome 3 years after initiation of methylphenidate (MPH) administration in a naturalistic, clinical cohort of children and adolescents with ADHD. Children ...
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Journal ArticleProg Lipid Res · January 2024
Lipoprotein metabolism is critical to inflammation. While the periphery and central nervous system (CNS) have separate yet connected lipoprotein systems, impaired lipoprotein metabolism is implicated in both cardiometabolic and neurological disorders. Desp ...
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Journal ArticleNPJ Metab Health Dis · 2024
Alzheimer's disease (AD) is influenced by a variety of modifiable risk factors, including a person's dietary habits. While the ketogenic diet (KD) holds promise in reducing metabolic risks and potentially affecting AD progression, only a few studies have e ...
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Journal ArticleNat Commun · December 20, 2023
Despite the increasing availability of tandem mass spectrometry (MS/MS) community spectral libraries for untargeted metabolomics over the past decade, the majority of acquired MS/MS spectra remain uninterpreted. To further aid in interpreting unannotated s ...
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Journal ArticleAlzheimers Dement · November 2023
INTRODUCTION: The ketogenic diet (KD) is an intriguing therapeutic candidate for Alzheimer's disease (AD) given its protective effects against metabolic dysregulation and seizures. Gut microbiota are essential for KD-mediated neuroprotection against seizur ...
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Journal ArticleEBioMedicine · November 2023
BACKGROUND: Deep learning has shown potential in various scientific domains but faces challenges when applied to complex, high-dimensional multi-omics data. Alzheimer's Disease (AD) is a neurodegenerative disorder that lacks targeted therapeutic options. T ...
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Journal ArticleMol Psychiatry · September 2023
Metabolome reflects the interplay of genome and exposome at molecular level and thus can provide deep insights into the pathogenesis of a complex disease like major depression. To identify metabolites associated with depression we performed a metabolome-wi ...
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Journal ArticleSci Rep · August 23, 2023
Integration of the omics data, including metabolomics and proteomics, provides a unique opportunity to search for new associations within metabolic disorders, including Alzheimer's disease. Using metabolomics, we have previously profiled oxylipins, endocan ...
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Journal ArticleJAMA Psychiatry · June 1, 2023
IMPORTANCE: Metabolomics reflect the net effect of genetic and environmental influences and thus provide a comprehensive approach to evaluating the pathogenesis of complex diseases, such as depression. OBJECTIVE: To identify the metabolic signatures of maj ...
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Journal ArticleAlzheimers Dement · March 2023
INTRODUCTION: Alzheimer's disease (AD) is accompanied by metabolic alterations both in the periphery and the central nervous system. However, so far, a global view of AD-associated metabolic changes in the brain has been missing. METHODS: We metabolically ...
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Journal ArticleAlzheimers Dement · February 2023
INTRODUCTION: Late-onset Alzheimer's disease (LOAD) is a complex neurodegenerative disease characterized by multiple progressive stages, glucose metabolic dysregulation, Alzheimer's disease (AD) pathology, and inexorable cognitive decline. Discovery of met ...
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Journal ArticleNucleic Acids Res · January 6, 2023
The Human Microbial Metabolome Database (MiMeDB) (https://mimedb.org) is a comprehensive, multi-omic, microbiome resource that connects: (i) microbes to microbial genomes; (ii) microbial genomes to microbial metabolites; (iii) microbial metabolites to the ...
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Journal ArticleAlzheimers Res Ther · December 26, 2022
BACKGROUND: Alzheimer's disease (AD) shares risk factors with cardiovascular disease (CVD) and dysregulated cholesterol metabolism is a mechanism common to both diseases. Cholesterol efflux capacity (CEC) is an ex vivo metric of plasma high-density lipopro ...
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Journal ArticleAlzheimer S and Dementia · December 1, 2022
Background: The pathogenesis of dementia and depression is complex involving the interplay of genetic and environmental risk factors including diet, life-style and the gut microbiome. Dementia and depression co-occur and metabolomics studies may shed light ...
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Journal ArticleAlzheimer S and Dementia · December 1, 2022
Background: Alterations in the brain-gut microbiome system are thought to play an important role in the development of neurodegenerative diseases. While the great majority of secreted primary bile acids (BAs) are reabsorbed in the ileum, about 5% are metab ...
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Journal ArticleAlzheimers Dement · November 2022
INTRODUCTION: The apolipoprotein E (APOE) genotype is the strongest genetic risk factor for late-onset Alzheimer's disease. However, its effect on lipid metabolic pathways, and their mediating effect on disease risk, is poorly understood. METHODS: We perfo ...
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Journal ArticleCommun Biol · October 8, 2022
Dysregulation of sphingomyelin and ceramide metabolism have been implicated in Alzheimer's disease. Genome-wide and transcriptome-wide association studies have identified various genes and genetic variants in lipid metabolism that are associated with Alzhe ...
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Journal ArticlePsychiatry Res · August 2022
In this pilot study (N = 9), we highlight new insights gained on ketamine's mechanism of action where we have mapped biochemical processes that are affected within 40 min of intravenous ketamine exposure. Targeting acylcarnitines, we demonstrated rapid uti ...
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Journal ArticleBrain Behav Immun Health · July 2022
Neuroinflammation has been recognized as a component of Alzheimer's Disease (AD) pathology since the original descriptions by Alois Alzheimer and a role for infections in AD pathogenesis has long been hypothesized. More recently, this hypothesis has gained ...
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Journal ArticleJ Affect Disord · June 15, 2022
BACKGROUND: Altered metabolism of acylcarnitines - transporting fatty acids to mitochondria - may link cellular energy dysfunction to depression. We examined the potential causal role of acylcarnitine metabolism in depression by leveraging genomics and Men ...
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Journal ArticleNat Commun · June 6, 2022
We integrated lipidomics and genomics to unravel the genetic architecture of lipid metabolism and identify genetic variants associated with lipid species putatively in the mechanistic pathway for coronary artery disease (CAD). We quantified 596 lipid speci ...
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Journal ArticleAlzheimers Dement · June 2022
Metabolites, the biochemical products of the cellular process, can be used to measure alterations in biochemical pathways related to the pathogenesis of Alzheimer's disease (AD). However, the relationships between systemic abnormalities in metabolism and t ...
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Journal ArticleBrain Behav Immun · May 2022
BACKGROUND: Major depressive disorder (MDD) is a highly heterogenous disease, both in terms of clinical profiles and pathobiological alterations. Recently, immunometabolic dysregulations were shown to be correlated with atypical, energy-related symptoms bu ...
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Journal ArticleJournal of personalized medicine · March 2022
Age at depressive onset (AAO) corresponds to unique symptomatology and clinical outcomes. Integration of genome-wide association study (GWAS) results with additional “omic” measures to evaluate AAO has not been reported and may reveal novel markers of susc ...
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Journal ArticleFront Neurosci · 2022
BACKGROUND: The gut microbiome may play a role in the pathogenesis of neuropsychiatric diseases including major depressive disorder (MDD). Bile acids (BAs) are steroid acids that are synthesized in the liver from cholesterol and further processed by gut-ba ...
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Journal ArticleFrontiers in pharmacology · January 2022
Background: Individuals with major depressive disorder (MDD) and a lifetime history of attempted suicide demonstrate lower antidepressant response rates than those without a prior suicide attempt. Identifying biomarkers of antidepressant response an ...
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Journal ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association · December 1, 2021
BACKGROUND: Impairment of brain glucose metabolism has been frequently described in Alzheimer's disease (AD). Moreover, the strongest predictor of the lifetime incidence of AD is the ε4 allele of APOE, a protein involved in lipid metabolism. These connecti ...
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Journal ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association · December 1, 2021
BACKGROUND: L-carnitine is present in the mammalian cells as free carnitine (FC) and acylcarnitine and the adult human brain contains almost 10% of long chain acylcarnitine. Acylcarnitines are functionally involved in β-oxidation of fatty acids and are als ...
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Journal ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association · December 1, 2021
BACKGROUND: Alzheimer's disease (AD) is a devastating neurodegenerative disorder for which there currently are no disease-modifying treatments available. To accelerate the path to effective intervention strategies, drug repositioning - the application of a ...
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Journal ArticleSci Rep · October 25, 2021
It is unknown whether indoles, metabolites of tryptophan that are derived entirely from bacterial metabolism in the gut, are associated with symptoms of depression and anxiety. Serum samples (baseline, 12 weeks) were drawn from participants (n = 196) rando ...
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Journal ArticleTransl Psychiatry · October 7, 2021
Combination antidepressant pharmacotherapies are frequently used to treat major depressive disorder (MDD). However, there is no evidence that machine learning approaches combining multi-omics measures (e.g., genomics and plasma metabolomics) can achieve cl ...
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Journal ArticleSci Rep · September 23, 2021
Cognitive decline is associated with both normal aging and early pathologies leading to dementia. Here we used quantitative profiling of metabolites involved in the regulation of inflammation, vascular function, neuronal function and energy metabolism, inc ...
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Journal ArticleAlzheimers Res Ther · September 6, 2021
BACKGROUND: Alzheimer's disease, cardiovascular disease, and other cardiometabolic disorders may share inflammatory origins. Lipid mediators, including oxylipins, endocannabinoids, bile acids, and steroids, regulate inflammation, energy metabolism, and cel ...
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Journal ArticleMol Psychiatry · June 2021
Selective serotonin reuptake inhibitors (SSRIs) are standard of care for major depressive disorder (MDD) pharmacotherapy, but only approximately half of these patients remit on SSRI therapy. Our previous genome-wide association study identified a single-nu ...
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Journal ArticlePLoS Med · May 2021
BACKGROUND: While Alzheimer disease (AD) and vascular dementia (VaD) may be accelerated by hypercholesterolemia, the mechanisms underlying this association are unclear. We tested whether dysregulation of cholesterol catabolism, through its conversion to pr ...
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Journal ArticleTransl Psychiatry · March 2, 2021
Selective serotonin reuptake inhibitors (SSRIs) are the first-line treatment for major depressive disorder (MDD), yet their mechanisms of action are not fully understood and their therapeutic benefit varies among individuals. We used a targeted metabolomic ...
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Journal ArticleMetabolomics · January 18, 2021
INTRODUCTION: Analyses of cerebrospinal fluid (CSF) metabolites in large, healthy samples have been limited and potential demographic moderators of brain metabolism are largely unknown. OBJECTIVE: Our objective in this study was to examine sex and race dif ...
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Journal ArticleMicrobiome · January 4, 2021
The inaugural "Microbiome for Mars" virtual workshop took place on July 13, 2020. This event assembled leaders in microbiome research and development to discuss their work and how it may relate to long-duration human space travel. The conference focused on ...
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Journal ArticleBrain Commun · 2021
Metabolomics in the Alzheimer's Disease Neuroimaging Initiative cohort provides a powerful tool for mapping biochemical changes in Alzheimer's disease, and a unique opportunity to learn about the association between circulating blood metabolites and brain ...
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Journal ArticleNature reviews. Neuroscience · December 2020
Mounting evidence suggests that the gut microbiome impacts brain development and function. Gut-brain connections may be mediated by an assortment of microbial molecules that are produced in the gastrointestinal tract, which can subsequently permeate many o ...
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Journal ArticleCell Rep Med · November 17, 2020
Increasing evidence suggests Alzheimer's disease (AD) pathophysiology is influenced by primary and secondary bile acids, the end product of cholesterol metabolism. We analyze 2,114 post-mortem brain transcriptomes and identify genes in the alternative bile ...
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Journal ArticleNat Commun · November 10, 2020
Changes to lipid metabolism are tightly associated with the onset and pathology of Alzheimer's disease (AD). Lipids are complex molecules comprising many isomeric and isobaric species, necessitating detailed analysis to enable interpretation of biological ...
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Journal ArticleAlzheimers Dement · September 2020
INTRODUCTION: Altered lipid metabolism is implicated in Alzheimer's disease (AD), but the mechanisms remain obscure. Aging-related declines in circulating plasmalogens containing omega-3 fatty acids may increase AD risk by reducing plasmalogen availability ...
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Journal ArticleSci Rep · August 20, 2020
The incidence of Alzheimer's disease (AD) increases with age and is becoming a significant cause of worldwide morbidity and mortality. However, the metabolic perturbation behind the onset of AD remains unclear. In this study, we performed metabolite profil ...
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Journal ArticleJ Am Heart Assoc · July 21, 2020
Background There are sex differences in the efficacy and safety of aspirin for the prevention of myocardial infarction and stroke. Whether this is explained by underlying differences in platelet reactivity and aspirin response remains poorly understood. Me ...
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Journal ArticleMed Res Rev · July 2020
Recent epidemiological and molecular studies have linked the disruption of cholesterol homeostasis to increased risk for developing Alzheimer's disease (AD). Emerging evidence also suggests that brain cholesterol accumulation contributes to the progression ...
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Journal ArticleNeuron · June 3, 2020
Evidence suggests interplay among the three major risk factors for Alzheimer's disease (AD): age, APOE genotype, and sex. Here, we present comprehensive datasets and analyses of brain transcriptomes and blood metabolomes from human apoE2-, apoE3-, and apoE ...
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Journal ArticleNeurology · May 2020
ObjectiveTo investigate the association of triglyceride (TG) principal component scores with Alzheimer disease (AD) and the amyloid, tau, neurodegeneration, and cerebrovascular disease (A/T/N/V) biomarkers for AD.MethodsSerum levels of 84 ...
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Journal ArticleMetabolites · April 1, 2020
Pharmacometabolomics (PMx) studies use information contained in metabolic profiles (or metabolome) to inform about how a subject will respond to drug treatment. Genome, gut microbiome, sex, nutrition, age, stress, health status, and other factors can impac ...
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Journal ArticleNat Commun · March 2, 2020
Late-onset Alzheimer's disease (AD) can, in part, be considered a metabolic disease. Besides age, female sex and APOE ε4 genotype represent strong risk factors for AD that also give rise to large metabolic differences. We systematically investigated group- ...
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Journal ArticlePsychological medicine · March 2020
BackgroundWe aimed at exploring potential pathophysiological processes across psychotic disorders, applying metabolomics in a large and well-characterized sample of patients and healthy controls.MethodsPatients with schizophrenia and bipo ...
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Journal ArticleJ Allergy Clin Immunol · March 2020
BACKGROUND: Food allergy (FA) affects an increasing proportion of children for reasons that remain obscure. Novel disease biomarkers and curative treatment options are strongly needed. OBJECTIVE: We sought to apply untargeted metabolomic profiling to ident ...
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Journal ArticleJ Affect Disord · March 1, 2020
BACKGROUND: Acylcarnitines have important functions in mitochondrial energetics and β-oxidation, and have been implicated to play a significant role in metabolic functions of the brain. This retrospective study examined whether plasma acylcarnitine profile ...
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Journal ArticleCPT Pharmacometrics Syst Pharmacol · January 2020
The substantial progress made in the basic sciences of the brain has yet to be adequately translated to successful clinical therapeutics to treat central nervous system (CNS) diseases. Possible explanations include the lack of quantitative and validated bi ...
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Journal ArticleJ Alzheimers Dis · 2020
BACKGROUND: Basic research has implicated intracellular cholesterol in neurons, microglia, and astrocytes in the pathogenesis of Alzheimer's disease (AD), but there is presently no assay to access intracellular cholesterol in neural cells in living people ...
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Journal ArticleAlzheimers Dement (Amst) · December 2019
INTRODUCTION: Comorbidity with metabolic diseases indicates that lipid metabolism plays a role in the etiology of Alzheimer's disease (AD). Comprehensive lipidomic analysis can provide new insights into the altered lipid metabolism in AD. METHOD: In this s ...
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Journal ArticleSci Data · October 17, 2019
Alzheimer's disease (AD) is the most common cause of dementia. The mechanism of disease development and progression is not well understood, but increasing evidence suggests multifactorial etiology, with a number of genetic, environmental, and aging-related ...
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Journal ArticleTransl Psychiatry · July 4, 2019
Metabolomics provides valuable tools for the study of drug effects, unraveling the mechanism of action and variation in response due to treatment. In this study we used electrochemistry-based targeted metabolomics to gain insights into the mechanisms of ac ...
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Journal ArticleJAMA Netw Open · July 3, 2019
IMPORTANCE: Increasing evidence suggests an important role of liver function in the pathophysiology of Alzheimer disease (AD). The liver is a major metabolic hub; therefore, investigating the association of liver function with AD, cognition, neuroimaging, ...
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Journal ArticleAnal Chem · March 5, 2019
Large-scale untargeted lipidomics experiments involve the measurement of hundreds to thousands of samples. Such data sets are usually acquired on one instrument over days or weeks of analysis time. Such extensive data acquisition processes introduce a vari ...
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Journal ArticleAlzheimers Dement · February 2019
INTRODUCTION: Bile acids (BAs) are the end products of cholesterol metabolism produced by human and gut microbiome co-metabolism. Recent evidence suggests gut microbiota influence pathological features of Alzheimer's disease (AD) including neuroinflammatio ...
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Journal ArticleAlzheimers Dement · January 2019
INTRODUCTION: Increasing evidence suggests a role for the gut microbiome in central nervous system disorders and a specific role for the gut-brain axis in neurodegeneration. Bile acids (BAs), products of cholesterol metabolism and clearance, are produced i ...
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Journal ArticleFront Neurosci · 2019
Major depressive disorder (MDD) is a common and disabling syndrome with multiple etiologies that is defined by clinically elicited signs and symptoms. In hopes of developing a list of candidate biological measures that reflect and relate closely to the sev ...
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Journal ArticleSci Data · November 20, 2018
Alzheimer's disease (AD) is a major public health priority with a large socioeconomic burden and complex etiology. The Alzheimer Disease Metabolomics Consortium (ADMC) and the Alzheimer Disease Neuroimaging Initiative (ADNI) aim to gain new biological insi ...
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Journal ArticleJ Affect Disord · October 1, 2018
BACKGROUND: Substantial research progress can be achieved if available clinical datasets can be mapped to the National Institute of Mental Health Research-Domain-Criteria (RDoC) constructs. This mapping would allow investigators to both explore more narrow ...
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Journal ArticleIEEE Comput Intell Mag · August 2018
This work proposes a "learning-augmented clinical assessment" workflow to sequentially augment physician assessments of patients' symptoms and their socio-demographic measures with heterogeneous biological measures to accurately predict treatment outcomes ...
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Journal ArticleCPT Pharmacometrics Syst Pharmacol · August 2018
Carboxylesterase 1 (CES1) metabolizes methylphenidate and other drugs. CES1 gene variation only partially explains pharmacokinetic (PK) variability. Biomarkers predicting the PKs of drugs metabolized by CES1 are needed. We identified lipids in plasma from ...
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Journal ArticleBiochem Pharmacol · June 2018
Major depressive disorder (MDD) is the most common psychiatric illness worldwide, and it displays a striking sex-dependent difference in incidence, with two thirds of MDD patients being women. Ketamine treatment can produce rapid antidepressant effects in ...
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Journal ArticleProg Neuropsychopharmacol Biol Psychiatry · February 2, 2018
Evidence has shown that the kynurenine pathway (KP) plays a role in the onset of oxidative stress and also in the pathophysiology of schizophrenia. The aim of this study was to use a pharmacological animal model of schizophrenia induced by ketamine to inve ...
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Journal ArticleTransl Psychiatry · January 10, 2018
Major depressive disorder (MDD) is a heterogeneous disease. Efforts to identify biomarkers for sub-classifying MDD and antidepressant therapy by genome-wide association studies (GWAS) alone have generally yielded disappointing results. We applied a metabol ...
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Journal ArticlePLoS Med · January 2018
BACKGROUND: The metabolic basis of Alzheimer disease (AD) is poorly understood, and the relationships between systemic abnormalities in metabolism and AD pathogenesis are unclear. Understanding how global perturbations in metabolism are related to severity ...
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Journal ArticleJ Am Heart Assoc · December 29, 2017
BACKGROUND: Although hydrochlorothiazide (HCTZ) is a well-established first-line antihypertensive in the United States, <50% of HCTZ treated patients achieve blood pressure (BP) control. Thus, identifying biomarkers that could predict the BP response to HC ...
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Journal ArticleSci Data · October 17, 2017
Alzheimer's disease (AD) is the most common neurodegenerative disease presenting major health and economic challenges that continue to grow. Mechanisms of disease are poorly understood but significant data point to metabolic defects that might contribute t ...
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Conference2017 IEEE Conference on Computational Intelligence in Bioinformatics and Computational Biology Cibcb 2017 · October 4, 2017
This paper proposes a data-driven longitudinal model that brings together factor graphs and learning methods to demonstrate a significant improvement in predictability in clinical outcomes of patients with major depressive disorder treated with antidepress ...
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Journal ArticleAlzheimers Dement · September 2017
INTRODUCTION: The Alzheimer's Disease Research Summits of 2012 and 2015 incorporated experts from academia, industry, and nonprofit organizations to develop new research directions to transform our understanding of Alzheimer's disease (AD) and propel the d ...
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Journal ArticleTransl Psychiatry · August 8, 2017
Clinical evidence suggests that symptoms in premenstrual dysphoric disorder (PMDD) reflect abnormal responsivity to ovarian steroids. This differential steroid sensitivity could be underpinned by abnormal processing of the steroid signal. We used a pharmac ...
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Journal ArticleNeuroscience · June 14, 2017
Immune activation (IA) during the early neonatal period is a risk factor for the development of schizophrenia. Lipopolysaccharide (LPS) injected in neonates lead to behavioral and brain changes that persist to adult life. We investigated oxidative stress, ...
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Journal ArticleMetabolomics · January 2017
INTRODUCTION: Statins, widely prescribed drugs for treatment of cardiovascular disease, inhibit the biosynthesis of low density lipoprotein cholesterol (LDL-C). Despite providing major benefits, sub populations of patients experience adverse effects, inclu ...
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Journal ArticleMol Psychiatry · December 2016
Millions of patients suffer from major depressive disorder (MDD), but many do not respond to selective serotonin reuptake inhibitor (SSRI) therapy. We used a pharmacometabolomics-informed pharmacogenomics research strategy to identify genes associated with ...
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Journal ArticleTransl Psychiatry · September 20, 2016
Ketamine, at sub-anesthetic doses, is reported to rapidly decrease depression symptoms in patients with treatment-resistant major depressive disorder (MDD). Many patients do not respond to currently available antidepressants, (for example, serotonin reupta ...
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Journal ArticleHypertension · September 2016
Hydrochlorothiazide is among the most commonly prescribed antihypertensives; yet, <50% of hydrochlorothiazide-treated patients achieve blood pressure (BP) control. Herein, we integrated metabolomic and genomic profiles of hydrochlorothiazide-treated patien ...
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Journal ArticleMetabolomics · August 2016
INTRODUCTION: While atenolol is an effective antihypertensive agent, its use is also associated with adverse events including hyperglycemia and incident diabetes that may offset the benefits of blood pressure lowering. By combining metabolomic and genomic ...
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Journal ArticleMetabolomics · July 1, 2016
Introduction: The initial decades of the twenty-first century have witnessed striking technical advances that have made it possible to detect, identify and quantitatively measure large numbers of plasma or tissue metabolites. In parallel, similar advances ...
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Journal ArticleFrontiers in Pharmacology · June 14, 2016
Millions of individuals are diagnosed with type 2 diabetes mellitus (T2D), which increases the risk for a plethora of adverse outcomes including cardiovascular events and kidney disease. Metformin is the most widely prescribed medication for the treatment ...
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Journal ArticleDrug Metabolism and Personalized Therapy · June 1, 2016
Genetic variations in drug-metabolizing enzymes have been reported to influence pharmacokinetics, drug dosage and other aspects that affect therapeutic outcomes. Most particularly, non-synonymous single-nucleotide polymorphisms (nsSNPs) resulting in amino ...
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Journal ArticleJ Alzheimers Dis · 2016
Plasma homocysteine, a metabolite involved in key cellular methylation processes seems to be implicated in cognitive functions and cardiovascular health with its high levels representing a potential modifiable risk factor for Alzheimer's disease (AD) and o ...
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Journal ArticleMetabolomics · 2016
INTRODUCTION BACKGROUND TO METABOLOMICS: Metabolomics is the comprehensive study of the metabolome, the repertoire of biochemicals (or small molecules) present in cells, tissues, and body fluids. The study of metabolism at the global or "-omics" level is a ...
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Journal ArticleMetabolomics · November 21, 2015
The metabolic composition of human biofluids can provide important diagnostic and prognostic information. Among the biofluids most commonly analyzed in metabolomic studies, urine appears to be particularly useful. It is abundant, readily available, easily ...
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Journal ArticleCPT Pharmacometrics Syst Pharmacol · November 2015
Achieving hypertension (HTN) control and mitigating the adverse health effects associated with HTN continues to be a global challenge. Some individuals respond poorly to current HTN therapies, and mechanisms for response variation remain poorly understood. ...
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Journal ArticleJ Am Heart Assoc · October 26, 2015
BACKGROUND: While aspirin is a well-established and generally effective anti-platelet agent, considerable inter-individual variation in drug response exists, for which mechanisms are not completely understood. Metabolomics allows for extensive measurement ...
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Journal ArticleAlzheimers Dement · July 2015
INTRODUCTION: Genetic data from the Alzheimer's Disease Neuroimaging Initiative (ADNI) have been crucial in advancing the understanding of Alzheimer's disease (AD) pathophysiology. Here, we provide an update on sample collection, scientific progress and op ...
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Journal ArticleClin Pharmacol Ther · July 2015
The scaling up of data in clinical pharmacology and the merger of systems biology and pharmacology has led to the emergence of a new discipline of Quantitative and Systems Pharmacology (QSP). This new research direction might significantly advance the disc ...
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Journal ArticleDrug Test Anal · July 2015
Synthetic cannabimimetic agents are a large group of diverse compounds which act as agonists at cannabinoid receptors. Since 2004, synthetic cannabinoids have been used recreationally, although several of the compounds have been shown to cause severe toxic ...
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Journal ArticleAnn Behav Med · February 2015
BACKGROUND: Previous research has shown an association between hostility and fasting glucose in African American women. Central nervous system serotonin activity is implicated both in metabolic processes and in hostility related traits. PURPOSE: The purpos ...
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Journal ArticleMetabolomics · 2015
The metabolic composition of human biofluids can provide important diagnostic and prognostic information. Among the biofluids most commonly analyzed in metabolomic studies, urine appears to be particularly useful. It is abundant, readily available, easily ...
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Journal ArticlePLoS One · 2015
Module-based analysis (MBA) aims to evaluate the effect of a group of biological elements sharing common features, such as SNPs in the same gene or metabolites in the same pathways, and has become an attractive alternative to traditional single bio-element ...
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Journal ArticlePharmacogenomics · 2015
CES1 is involved in the hydrolysis of ester group-containing xenobiotic and endobiotic compounds including several essential and commonly used drugs. The individual variation in the efficacy and tolerability of many drugs metabolized by CES1 is considerabl ...
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Journal ArticleALTEX · 2015
Metabolomics promises a holistic phenotypic characterization of biological responses to toxicants. This technology is based on advanced chemical analytical tools with reasonable throughput, including mass-spectroscopy and NMR. Quality assurance, however - ...
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Journal ArticleCPT Pharmacometrics Syst Pharmacol · July 16, 2014
While aspirin is generally effective for prevention of cardiovascular disease, considerable variation in drug response exists, resulting in some individuals displaying high on-treatment platelet reactivity. We used pharmacometabolomics to define pathways i ...
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Journal ArticleCirc Cardiovasc Genet · April 2014
BACKGROUND: The 5-amino acid (AA) signature, including isoleucine, leucine, valine, tyrosine, and phenylalanine, has been associated with incident diabetes mellitus and insulin resistance. We investigated whether this same AA signature, single-nucleotide p ...
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Journal ArticleClin Pharmacol Ther · February 2014
Metabolomics, the study of metabolism at an "omic" level, has the potential to transform our understanding of mechanisms of drug action and the molecular basis for variation in drug response. It is now possible to define metabolic signatures of drug exposu ...
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Journal ArticleClin Pharmacol Ther · November 2013
Interindividual variability in response to antiplatelet therapy results in higher platelet reactivity as well as higher rates of cardiovascular events. Despite substantial effort, the genetic and nongenetic determinants of antiplatelet variability remain p ...
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Journal ArticleClin Pharmacol Ther · November 2013
Statins reduce risk of cardiovascular disease (CVD) by decreasing plasma low-density lipoprotein (LDL) concentrations, as well as reducing inflammation and improving endothelial function. Despite their documented efficacy, there is considerable interindivi ...
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Journal ArticleClin Pharmacol Ther · October 2013
Although aspirin is a well-established antiplatelet agent, the mechanisms of aspirin resistance remain poorly understood. Metabolomics allows for measurement of hundreds of small molecules in biological samples, enabling detailed mapping of pathways involv ...
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Journal ArticleActa Neuropathol Commun · June 27, 2013
BACKGROUND: A critical and as-yet unmet need in Alzheimer disease (AD) research is the development of novel markers that can identify individuals at risk for cognitive decline due to AD. This would aid intervention trials designed to slow the progression o ...
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Journal ArticleFrontiers in Cellular Neuroscience · May 22, 2013
Schizophrenia (SZ) is a biochemically complex disorder characterized by widespread defects in multiple metabolic pathways whose dynamic interactions, until recently, have been difficult to examine. Rather, evidence for these alterations has been collected ...
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Journal ArticleTransl Psychiatry · April 9, 2013
The pathogenic mechanisms of Alzheimer's disease (AD) remain largely unknown and clinical trials have not demonstrated significant benefit. Biochemical characterization of AD and its prodromal phase may provide new diagnostic and therapeutic insights. We u ...
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Journal ArticleTransl Psychiatry · January 22, 2013
In this study, we characterized early biochemical changes associated with sertraline and placebo administration and changes associated with a reduction in depressive symptoms in patients with major depressive disorder (MDD). MDD patients received sertralin ...
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Journal ArticlePLoS One · 2013
Antihypertensive drugs are among the most commonly prescribed drugs for chronic disease worldwide. The response to antihypertensive drugs varies substantially between individuals and important factors such as race that contribute to this heterogeneity are ...
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Journal ArticlePLoS One · 2013
We have shown that lithium treatment improves motor coordination in a spinocerebellar ataxia type 1 (SCA1) disease mouse model (Sca1(154Q/+)). To learn more about disease pathogenesis and molecular contributions to the neuroprotective effects of lithium, w ...
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Journal ArticlePLoS One · 2013
There is a critical need for mapping early metabolic changes in schizophrenia to capture failures in regulation of biochemical pathways and networks. This information could provide valuable insights about disease mechanisms, trajectory of disease progressi ...
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Journal ArticlePLoS One · 2013
Therapeutic response to selective serotonin (5-HT) reuptake inhibitors in Major Depressive Disorder (MDD) varies considerably among patients, and the onset of antidepressant therapeutic action is delayed until after 2 to 4 weeks of treatment. The objective ...
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Journal ArticleClinical Pharmacology and Therapeutics · 2013
Although aspirin is a well-established antiplatelet agent, the mechanisms of aspirin resistance remain poorly understood. Metabolomics allows for measurement of hundreds of small molecules in biological samples, enabling detailed mapping of pathways involv ...
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Journal ArticleJ Anal Toxicol · October 2012
A chiral liquid chromatography tandem mass spectrometry (LC-MS-MS) method was developed and validated for quantifying methylphenidate and its major metabolite ritalinic acid in blood from forensic cases. Blood samples were prepared in a fully automated sys ...
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Journal ArticlePsychiatry Res · August 15, 2012
Plasmalogens are a subclass of glycerophospholipids and ubiquitous constituents of cellular membranes and serum lipoproteins. Several neurological disorders show decreased level of plasmogens. An earlier study found differences in plasma phospholipids betw ...
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Journal ArticlePharmacogenet Genomics · April 2012
OBJECTIVE: We set out to test the hypothesis that pharmacometabolomic data could be efficiently merged with pharmacogenomic data by single-nucleotide polymorphism (SNP) imputation of metabolomic-derived pathway data on a 'scaffolding' of genome-wide associ ...
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Journal ArticleJ Cardiovasc Transl Res · February 2012
The omega-3 fatty acid (FA) concentration is low in patients with coronary heart disease (CHD). Supplement of omega-3 FA improves cardiovascular outcomes in patients with CHD and heart failure (HF). However, plasma omega-3 FA and its role for prognosis in ...
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Journal ArticleSci Rep · 2012
Targeted metabolomics provides an approach to quantify metabolites involved in specific molecular pathways. We applied an electrochemistry-based, targeted metabolomics platform to define changes in tryptophan, tyrosine, purine and related pathways in the d ...
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Journal ArticlePLoS One · 2012
BACKGROUND: The antioxidant defense system, which is known to be dysregulated in schizophrenia, is closely linked to the dynamics of purine pathway. Thus, alterations in the homeostatic balance in the purine pathway may be involved in the pathophysiology o ...
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Journal ArticlePLoS One · 2012
UNLABELLED: Statins are widely prescribed for reducing LDL-cholesterol (C) and risk for cardiovascular disease (CVD), but there is considerable variation in therapeutic response. We used a gas chromatography-time-of-flight mass-spectrometry-based metabolom ...
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Journal ArticleInt J Neuropsychopharmacol · July 2011
One branch of the tryptophan catabolic cascade is the kynurenine pathway, which produces neurotoxic [3-hydroxykynurenine (3-OHKY), quinolinic acid] and neuroinhibitory (kynurenic acid) compounds. Kynurenic acid acts as a competitive antagonist at the glyci ...
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Journal ArticleAlzheimers Dement · May 2011
BACKGROUND: Metabolomics, the global science of biochemistry, provides powerful tools to map perturbations in the metabolic network and enables simultaneous quantification of several metabolites to identify metabolic perturbances that might provide insight ...
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Journal ArticlePLoS One · 2011
BACKGROUND: The development of plasma biomarkers could facilitate early detection, risk assessment and therapeutic monitoring in Alzheimer's disease (AD). Alterations in ceramides and sphingomyelins have been postulated to play a role in amyloidogensis and ...
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Journal ArticlePLoS One · 2011
Although statins are widely prescribed medications, there remains considerable variability in therapeutic response. Genetics can explain only part of this variability. Metabolomics is a global biochemical approach that provides powerful tools for mapping p ...
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Journal ArticleTransl Psychiatry · 2011
The purpose of this study was to determine whether the baseline metabolic profile (that is, metabotype) of a patient with major depressive disorder (MDD) would define how an individual will respond to treatment. Outpatients with MDD were randomly assigned ...
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Journal ArticleClin Pharmacol Ther · January 2011
Major depressive disorder (MDD) is a common psychiatric disease. Selective serotonin reuptake inhibitors (SSRIs) are an important class of drugs used in the treatment of MDD. However, many patients do not respond adequately to SSRI therapy. We used a pharm ...
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Journal ArticleTranslational psychiatry · 2011
The purpose of this study was to determine whether the baseline metabolic profile (that is, metabotype) of a patient with major depressive disorder (MDD) would define how an individual will respond to treatment. Outpatients with MDD were randomly assigned ...
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Journal ArticleMol Psychiatry · September 2010
Schizophrenia is characterized by complex and dynamically interacting perturbations in multiple neurochemical systems. In the past, evidence for these alterations has been collected piecemeal, limiting our understanding of the interactions among relevant b ...
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Journal ArticleJ Geriatr Psychiatry Neurol · June 2010
Metabolomics is an emerging technology that allows researchers to characterize hundreds of small molecules that comprise the metabolome. We sought to determine metabolic differences in depressed and nondepressed participants. The sample consisted of a depr ...
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Journal ArticleMetabolomics · June 1, 2010
Despite the long-established therapeutic efficacy of lithium in the treatment of bipolar disorder (BPD), its molecular mechanism of action remains elusive. Newly developed stable isotope-resolved metabolomics (SIRM) is a powerful approach that can be used ...
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Journal ArticleMetabolomics · June 2010
Statins are commonly used for reducing cardiovascular disease risk but therapeutic benefit and reductions in levels of low-density lipoprotein cholesterol (LDL-C) vary among individuals. Other effects, including reductions in C-reactive protein (CRP), also ...
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Journal ArticlePLoS One · March 3, 2010
BACKGROUND: Purine catabolism may be an unappreciated, but important component of the homeostatic response of mitochondria to oxidant stress. Accumulating evidence suggests a pivotal role of oxidative stress in schizophrenia pathology. METHODOLOGY/PRINCIPA ...
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Journal Article · December 1, 2009
A biomarker is a characteristic that is objectively measured and evaluated as an indicator of normal or pathogenic processes, as well as responses to therapeutic interventions. The discovery of biomarkers for psychiatric disorders and their incorporation i ...
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Journal ArticleHum Psychopharmacol · December 2009
OBJECTIVE: More must be learned about metabolic and biochemical alterations that contribute to the development and expression of drug dependence. Experimental opioid administration influences mechanisms and indices of oxidative stress, such as antioxidant ...
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Journal ArticlePsychopharmacology (Berl) · October 2009
BACKGROUND: Mapping metabolic "signatures" can provide new insights into addictive mechanisms and potentially identify biomarkers and therapeutic targets. OBJECTIVE: We examined the differences in metabolites related to the tyrosine, tryptophan, purine, an ...
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Journal ArticleNeurobiol Dis · August 2009
The repertoire of biochemicals (or small molecules) present in cells, tissue, and body fluids is known as the metabolome. Today, clinicians utilize only a very small part of the information contained in the metabolome, as revealed by the quantification of ...
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Journal ArticleNeuropsychopharmacology · January 2009
Metabolomics, the omics science of biochemistry, is a global approach to understanding regulation of metabolic pathways and metabolic networks of a biological system. Metabolomics complements data derived from genomics, transcriptomics, and proteomics to a ...
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Journal ArticleAnnu Rev Pharmacol Toxicol · 2008
Metabolomics is the study of metabolism at the global level. This rapidly developing new discipline has important potential implications for pharmacologic science. The concept that metabolic state is representative of the overall physiologic status of the ...
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Journal Article · December 1, 2007
Metabolomics-the-omics face of biochemistry-may be considered as a global approach to capturing and understanding the metabolic network of a biological system. Metabolomics expands and complements the data obtained from the other three major-omics fields-g ...
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Journal ArticleMol Psychiatry · October 2007
Schizophrenia is associated with impairments in neurotransmitter systems and changes in neuronal membrane phospholipids. Several atypical antipsychotic drugs induce weight gain and hypertriglyceridemia. To date, there has not been a comprehensive evaluatio ...
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Journal ArticleMetabolomics · September 1, 2007
In 2005, the Metabolomics Standards Initiative has been formed. An outline and general introduction is provided to inform about the history, structure, working plan and intentions of this initiative. Comments on any of the suggested minimal reporting stand ...
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Journal ArticleInt J Geriatr Psychiatry · May 2007
BACKGROUND: Metabolomics, the global science of biochemistry, is an emerging field that enables detection and quantification of small molecules involved in metabolic and signaling pathways. Metabolic signatures for disease and its treatment could provide v ...
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Journal ArticleMethods in Molecular Biology · April 5, 2007
Metabolomics is the systematic and theoretically comprehensive study of the small molecules that comprise a biological sample, e.g., sera or plasma. Metabolomics, in conjunction with other "-omics" approaches, offers a new window onto the study of aging an ...
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Journal ArticleMethods Mol Biol · 2007
Metabolomics is the systematic and theoretically comprehensive study of the small molecules that comprise a biological sample, e.g., sera or plasma. The primary analytical tools used in metabolomics are nuclear magnetic resonance and mass spectroscopy. We ...
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Journal ArticleMethods Mol Biol · 2007
Metabolomics is the systematic and theoretically comprehensive study of the small molecules that comprise a biological sample, e.g., sera or plasma. Metabolomics, in conjunction with other "-omics" approaches, offers a new window onto the study of aging an ...
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Journal ArticlePLoS Med · August 2006
Kaddurah-Daouk discusses a new study that found that patients with schizophrenia have an abnormal cerebrospinal fluid composition. In half of the patients, the composition returned to normal with antipsychotic therapy. ...
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Journal ArticleBrief Bioinform · June 2006
Informatics standards and controlled vocabularies are essential for allowing information technology to help exchange, manage, interpret and compare large data collections. In a rapidly evolving field, the challenge is to work out how best to describe, but ...
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Journal ArticleExpert Rev Mol Diagn · May 2006
Amyotrophic lateral sclerosis (ALS) is the most common form of motor neuron disease. ALS is a fatal neurodegenerative disease and clinical diagnosis typically takes many months to complete. Early disease diagnosis through the use of biomarkers may aid in c ...
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Journal ArticleOMICS · 2006
Metabolite concentrations in cellular systems are very much dependent on the physiological, environmental, and genetic status of an organism and are regarded as the ultimate result of cellular regulation, resulting in the visible phenotypes. Therefore, the ...
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Journal Article · December 1, 2005
Neurodegenerative diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD) and Amyotrophic Lateral Sclerosis (ALS) are poorly understood disorders for which there are no effective therapies. Both genetic and environ ...
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Journal ArticleMetabolomics · 2005
Motor neuron diseases (MND) are a heterogeneous group of disorders that includes amyotrophic lateral sclerosis (ALS) and result in death of motor neurons. These diseases may produce characteristic perturbations of the metabolome, the collection of small-mo ...
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Journal ArticleJ Neurochem · April 2001
Several lines of evidence implicate excitotoxic mechanisms in the pathogenesis of amyotrophic lateral sclerosis (ALS). Transgenic mice with a superoxide dismutase mutation (G93A) have been utilized as an animal model of familial ALS (FALS). We examined the ...
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Journal ArticlePhysiol Rev · July 2000
The goal of this review is to present a comprehensive survey of the many intriguing facets of creatine (Cr) and creatinine metabolism, encompassing the pathways and regulation of Cr biosynthesis and degradation, species and tissue distribution of the enzym ...
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Journal ArticleJ Neurosci · June 15, 2000
Huntington's disease (HD) is a progressive neurodegenerative illness for which there is no effective therapy. We examined whether creatine, which may exert neuroprotective effects by increasing phosphocreatine levels or by stabilizing the mitochondrial per ...
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Journal ArticleBrain Res · March 31, 2000
We examined whether creatine administration could exert neuroprotective effects against excitotoxicity mediated by N-methyl-D-aspartate (NMDA), alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and kainic acid. Oral administration of 1% creat ...
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Journal ArticleNeuroscience Research Communications · 2000
The discovery of mutations in the human SOD1 gene encoding (Cu, Zn SOD) in patients with familial amyotrophic lateral sclerosis (ALS) has made possible the development of etiological models of the disease. Expression of mutant SOD1 genes in transgenic mice ...
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Journal ArticleExp Neurol · May 1999
Systemic administration of 1-methyl-4-phenyl-1,2,3, 6-tetrahydropyridine (MPTP) produces parkinsonism in experimental animals by a mechanism involving impaired energy production. MPTP is converted by monoamine oxidase B to 1-methyl-4-phenylpyridinium (MPP+ ...
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Journal ArticleNat Med · March 1999
Mitochondria are particularly vulnerable to oxidative stress, and mitochondrial swelling and vacuolization are among the earliest pathologic features found in two strains of transgenic amyotrophic lateral sclerosis (ALS) mice with SOD1 mutations. Mice with ...
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Journal ArticleInt J Cancer · September 25, 1998
Cyclocreatine (1-carboxymethyl-2-iminoimidazolidine), an analog of creatine and a substrate for creatine kinase (EC 2.7.3.2), inhibits the stimulated motility of tumor cells which possess creatine kinase. A2058-055 human melanoma cells, transfected with a ...
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Journal ArticleIn Vivo · 1998
When rats bearing the 13,762 mammary carcinoma were treated with intravenously administered creatine analogs, cyclocreatine, beta-guanidinopropionic acid or creatine phosphate on days 4 through 8 and 14 through 18 post tumor implantation, the tumor growth ...
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Journal ArticleJ Neurosci · January 1, 1998
The gene defect in Huntington's disease (HD) may result in an impairment of energy metabolism. Malonate and 3-nitropropionic acid (3-NP) are inhibitors of succinate dehydrogenase that produce energy depletion and lesions that closely resemble those of HD. ...
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Journal ArticleBioorganic and Medicinal Chemistry Letters · April 22, 1997
The first hydrolytically stable phosphocreatine (CrP) analogs with a CH2-P isostere in place of the NH-P linkage have been synthesized and found to inhibit creatine kinase (CK) with potencies in the low mM range. The closest structural analog of ...
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Journal ArticleJ Mol Cell Cardiol · April 1996
To study the contribution of myocardial energy reserve to the deterioration of cardiac function during the development of heart failure, we defined energy reserve via the creatine kinase (CK) reaction and the isovolumic contractile performance in hearts of ...
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Journal ArticleInternational Journal of Oncology · January 1, 1996
Creatine kinase (CK) an enzyme involved in cellular ATP homeostasis has been implicated in tumorigenesis. Cyclocreatine (CCr) a CK substrate analog was shown to be cytotoxic to a broad spectrum of solid tumors. We have measured and compared the CK activity ...
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Journal ArticleAnticancer Res · 1996
BACKGROUND: The brain isoform of creatine kinase (CKBB), an enzyme involved in energy metabolism, has been implicated in cellular transformation process. Cyclocreatine (CCr), a creatine kinase (CK) substrate analogue, was shown to inhibit the growth of a b ...
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Journal ArticleOncol Res · 1996
The brain isoform of creatine kinase has been implicated in cellular transformation processes. Cyclocreatine, a creatine kinase substrate analog, was previously shown to be cytotoxic to a broad spectrum of solid tumors. We have synthesized, enzymatically c ...
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Journal ArticleAnticancer Drugs · June 1995
Creatine kinase (CK), a key enzyme of cellular energetics, has been implicated in tumorigenesis. Cyclocreatine (CCr), which forms a stable phosphagen with a reduced rate of ATP regeneration through CK, inhibits the growth of many solid tumors. We report th ...
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Journal ArticleJ Mol Cell Cardiol · April 1995
This study tests the hypothesis that the administration of cyclocreatine prior to global ischemia enhances recovery of cardiac function during reperfusion. Two models were used. First, in a Langendorff-working heart model of normothermic cardioplegic arres ...
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Journal ArticleAnticancer Res · 1995
Creatine kinase (CK; EC 2.7.3.2) isoenzymes and their substrates have an important function in cellular energy generation and utilization. The brain isoform (CK-BB) has been implicated in cellular transformation processes involving the oncogenic products o ...
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Journal ArticleCancer Chemother Pharmacol · 1995
Cyclocreatine, an analog of creatine, is an efficient substrate for creatine kinase, but its phosphorylated form is a poor phosphate donor in comparison with creatine phosphate. Cyclocreatine was not very cytotoxic upon 24 h of exposure of human SW2 small- ...
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Journal ArticleCancer Res · October 1, 1994
Cyclocreatine (CCr), a substrate analogue of creatine kinase (CK), exhibits antitumor activity in vitro and in vivo. To address its mechanism of action, we have examined its effects on tumor cell proliferation, viability, and cell cycle progression. Comple ...
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Journal ArticleJ Natl Cancer Inst · April 20, 1994
BACKGROUND: The creatine kinase (CK) isozymes and their substrates, creatine and creatine phosphate, are believed to play a pivotal role in energy transduction in tissues with large, fluctuating energy demands, such as skeletal muscle, heart, and brain. Th ...
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Journal ArticleAntiviral Res · April 1994
The creatine kinase/creatine phosphate (CK/CrP) system plays an important role in cellular energy homeostasis. CK isoenzymes, which reversibly generate ATP from CrP, are compartmentalized at cellular sites where energy is produced or utilized. It has been ...
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Journal ArticleTransplantation · March 27, 1994
The present study determined whether the administration of cyclocreatine phosphate (CCrP) prior to ischemia can enhance the recovery of rat hearts hypothermically preserved for a prolonged period. Rats (n = 6 per group) were injected intravenously with 1 m ...
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Journal ArticleCancer Res · July 1, 1993
In an effort to investigate the role of creatine kinase and its substrates in malignancy we have tested the effect of cyclocreatine [1-carboxymethyl-2-iminoimidazolidine (CCr)] on the growth of tumor cells in vitro and in vivo. CCr is phosphorylated by cre ...
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Journal ArticleMol Cell Biol · April 1990
Brain creatine kinase is a major enzyme of cellular energy metabolism. It is overexpressed in a wide range of tumor cell lines and is used as a tumor marker. We reported recently that the promoter of the human gene has a strong sequence similarity to the a ...
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Journal ArticleJ Biol Chem · February 15, 1988
There is evidence that the gene for the B isozyme of creatine kinase is regulated during cell differentiation, is under hormonal control, and is activated in a small cell lung carcinoma. In order to investigate further the mechanisms of these processes, th ...
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Journal ArticleGenes Dev · June 1987
One mechanism by which nuclear-localized oncogenes might transform cells is through an ability to regulate gene expression. We show that the c-myc protein stimulates the level of appropriately initiated expression from the human heat shock protein 70 (hsp7 ...
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Journal ArticleJ Biol Chem · December 5, 1985
An Escherichia coli K12 strain carrying the HhaII methylase and restriction genes on two separate compatible plasmids, pSK5 and pSK7, is used to overproduce the restriction endonuclease. Plasmid pSK5 expresses the methylase gene constitutively from its chl ...
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Journal ArticleJ Biol Chem · December 5, 1985
The catalytic properties of the HhaII restriction endonuclease were studied using plasmid pSK11 DNA containing a single 5'-G-A-N-T-C HhaII cleavage site as substrate. Reactions were followed by two methods: 1) gel electrophoretic analysis of nicked circula ...
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