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Joe Brice Weinberg

Professor Emeritus of Medicine
Medicine, Hematology
Duke Box 3396, Durham, NC 27708
E1006 VA Med Ctr, 508 Fulton St, Durham, NC 27705

Featured Works


Dimethylarginines: endogenous inhibitors of nitric oxide synthesis in children with falciparum malaria.

Journal article J Infect Dis · September 15, 2014 Featured Publication BACKGROUND: Nitric oxide (NO) bioavailability is impaired in children and adults with severe falciparum malaria (SM). Asymmetric-dimethylarginine (ADMA) limits NO production by inhibiting NO synthase and is increased in adult SM. The role of ADMA in the pa ... Full text Link to item Cite

Increased plasma arginase activity in human sepsis: association with increased circulating neutrophils.

Journal article Clin Chem Lab Med · April 2014 Featured Publication BACKGROUND: The pathophysiology of sepsis is incompletely understood. Impaired bioavailability of L-arginine, the substrate for NO synthesis, is linked to sepsis severity, and plasma arginase has been linked to hypoargininemia in other disease states. Circ ... Full text Link to item Cite

Genome-wide association study identifies multiple risk loci for chronic lymphocytic leukemia.

Journal article Nat Genet · August 2013 Featured Publication Genome-wide association studies (GWAS) have previously identified 13 loci associated with risk of chronic lymphocytic leukemia or small lymphocytic lymphoma (CLL). To identify additional CLL susceptibility loci, we conducted the largest meta-analysis for C ... Full text Link to item Cite

Mapping of the IRF8 gene identifies a 3'UTR variant associated with risk of chronic lymphocytic leukemia but not other common non-Hodgkin lymphoma subtypes.

Journal article Cancer Epidemiol Biomarkers Prev · March 2013 Featured Publication BACKGROUND: Our genome-wide association study (GWAS) of chronic lymphocytic leukemia (CLL) identified 4 highly correlated intronic variants within the IRF8 gene that were associated with CLL. These results were further supported by a recent meta-analysis o ... Full text Link to item Cite

Chronic lymphocytic leukemia and regulatory B cells share IL-10 competence and immunosuppressive function.

Journal article Leukemia · January 2013 Featured Publication Chronic lymphocytic leukemia (CLL) can be immunosuppressive in humans and mice, and CLL cells share multiple phenotypic markers with regulatory B cells that are competent to produce interleukin (IL)-10 (B10 cells). To identify functional links between CLL ... Full text Link to item Cite

The inhibition by interleukin 1 of MSC chondrogenesis and the development of biomechanical properties in biomimetic 3D woven PCL scaffolds.

Journal article Biomaterials · December 2012 Featured Publication Tissue-engineered constructs designed to treat large cartilage defects or osteoarthritic lesions may be exposed to significant mechanical loading as well as an inflammatory environment upon implantation in an injured or diseased joint. We hypothesized that ... Full text Link to item Cite

Single nucleotide polymorphisms and inherited risk of chronic lymphocytic leukemia among African Americans.

Journal article Blood · August 23, 2012 Featured Publication The incidence of chronic lymphocytic leukemia (CLL) is significantly lower in African Americans than whites, but overall survival is inferior. The biologic basis for these observations remains unexplored. We hypothesized that germline genetic predispositio ... Full text Link to item Cite

SET oncoprotein overexpression in B-cell chronic lymphocytic leukemia and non-Hodgkin lymphoma: a predictor of aggressive disease and a new treatment target.

Journal article Blood · October 13, 2011 Featured Publication B-cell chronic lymphocytic leukemia (CLL), an incurable leukemia, is characterized by defective apoptosis. We found that the SET oncoprotein, a potent inhibitor of the protein phosphatase 2A (PP2A) tumor suppressor, is overexpressed in primary CLL cells an ... Full text Link to item Cite

Immunophenotypic and gene expression analysis of monoclonal B-cell lymphocytosis shows biologic characteristics associated with good prognosis CLL.

Journal article Leukemia · September 2011 Featured Publication Monoclonal B-cell lymphocytosis (MBL) is a hematologic condition wherein small B-cell clones can be detected in the blood of asymptomatic individuals. Most MBL have an immunophenotype similar to chronic lymphocytic leukemia (CLL), and 'CLL-like' MBL is a p ... Full text Link to item Cite

Interleukin-1, tumor necrosis factor-alpha, and transforming growth factor-beta 1 and integrative meniscal repair: influences on meniscal cell proliferation and migration.

Journal article Arthritis Res Ther · 2011 Featured Publication INTRODUCTION: Interleukin-1 (IL-1) and tumor necrosis factor-α (TNF-α) are up-regulated in injured and osteoarthritic knee joints. IL-1 and TNF-α inhibit integrative meniscal repair; however, the mechanisms by which this inhibition occurs are not fully und ... Full text Link to item Cite

LMP-420: a novel purine nucleoside analog with potent cytotoxic effects for CLL cells and minimal toxicity for normal hematopoietic cells.

Journal article Leukemia · September 2010 Featured Publication B-cell chronic lymphocytic leukemia (CLL) is characterized by slow accumulation of malignant cells, which are supported in the microenvironment by cell-cell interactions and soluble cytokines such as tumor necrosis factor (TNF). We evaluated the effect of ... Full text Link to item Cite

Genome-wide association study of follicular lymphoma identifies a risk locus at 6p21.32.

Journal article Nat Genet · August 2010 Featured Publication To identify susceptibility loci for non-Hodgkin lymphoma subtypes, we conducted a three-stage genome-wide association study. We identified two variants associated with follicular lymphoma at 6p21.32 (rs10484561, combined P = 1.12 x 10(-29) and rs7755224, c ... Full text Link to item Cite

Dynamic loading enhances integrative meniscal repair in the presence of interleukin-1.

Journal article Osteoarthritis Cartilage · June 2010 Featured Publication OBJECTIVE: Meniscal tears are a common knee injury and increased levels of interleukin-1 (IL-1) have been measured in injured and degenerated joints. Studies have shown that IL-1 decreases the shear strength, cell accumulation, and tissue formation in meni ... Full text Link to item Cite

Increased asymmetric dimethylarginine in severe falciparum malaria: association with impaired nitric oxide bioavailability and fatal outcome.

Journal article PLoS Pathog · April 22, 2010 Featured Publication Asymmetrical dimethylarginine (ADMA), an endogenous inhibitor of nitric oxide synthase (NOS), is a predictor of mortality in critical illness. Severe malaria (SM) is associated with decreased NO bioavailability, but the contribution of ADMA to the pathogen ... Full text Link to item Cite

Single-cell analysis reveals oligoclonality among 'low-count' monoclonal B-cell lymphocytosis.

Journal article Leukemia · January 2010 Featured Publication Monoclonal B-cell lymphocytosis (MBL) is a preclinical hematologic syndrome characterized by small accumulations of CD5(+) B lymphocytes. Most MBL share phenotypic characteristics with chronic lymphocytic leukemia (CLL). Although some MBL progress to CLL, ... Full text Link to item Cite

Increased asymmetric dimethylarginine in severe falciparum malaria: Association with impaired nitric oxide bioavailability and fatal outcome

Journal article PLoS Pathogens · 2010 Featured Publication Asymmetrical dimethylarginine (ADMA), an endogenous inhibitor of nitric oxide synthase (NOS), is a predictor of mortality in critical illness. Severe malaria (SM) is associated with decreased NO bioavailability, but the contribution of ADMA to the pathogen ... Full text Cite

A genomic approach to improve prognosis and predict therapeutic response in chronic lymphocytic leukemia.

Journal article Clin Cancer Res · November 15, 2009 Featured Publication PURPOSE: Chronic lymphocytic leukemia (CLL) is a B-cell malignancy characterized by a variable clinical course. Several parameters have prognostic capabilities but are associated with altered response to therapy in only a small subset of patients. EXPERIME ... Full text Link to item Cite

Inhibition of nitric oxide synthase by cobalamins and cobinamides.

Journal article Free Radic Biol Med · June 15, 2009 Featured Publication Cobalamins are important cofactors for methionine synthase and methylmalonyl-CoA mutase. Certain corrins also bind nitric oxide (NO), quenching its bioactivity. To determine if corrins would inhibit NO synthase (NOS), we measured their effects on -L-[(14)C ... Full text Link to item Cite

Arginine, nitric oxide, carbon monoxide, and endothelial function in severe malaria.

Journal article Curr Opin Infect Dis · October 2008 Featured Publication PURPOSE OF REVIEW: Parasiticidal therapy of severe falciparum malaria improves outcome, but up to 30% of these patients die despite best therapy. Nitric oxide is protective against severe disease, and both nitric oxide and arginine (the substrate for nitri ... Full text Link to item Cite

Impaired nitric oxide bioavailability and L-arginine reversible endothelial dysfunction in adults with falciparum malaria.

Journal article J Exp Med · October 29, 2007 Featured Publication Severe falciparum malaria (SM) is associated with tissue ischemia related to cytoadherence of parasitized erythrocytes to microvascular endothelium and reduced levels of NO and its precursor, l-arginine. Endothelial function has not been characterized in S ... Full text Link to item Cite

Enhanced integrative repair of the porcine meniscus in vitro by inhibition of interleukin-1 or tumor necrosis factor alpha.

Journal article Arthritis Rheum · September 2007 Featured Publication OBJECTIVE: To examine the hypotheses that increasing concentrations of interleukin-1 (IL-1) or tumor necrosis factor alpha (TNFalpha) inhibit the integrative repair of the knee meniscus in an in vitro model system, and that inhibitors of these cytokines wi ... Full text Link to item Cite

Nitric oxide synthase and cyclooxygenase interactions in cartilage and meniscus: relationships to joint physiology, arthritis, and tissue repair.

Journal article Subcell Biochem · 2007 Featured Publication Rheumatoid arthritis and osteoarthritis are painful and debilitating diseases with complex pathophysiology. There is growing evidence that pro-inflammatory cytokines (e.g., interleukin-1 and tumor necrosis factor alpha) and mediators (e.g., prostaglandins, ... Full text Link to item Cite