Uric acid effects on glutathione metabolism estimated by induction of glutamate-cysteine ligase, glutathione reductase and glutathione synthetase in mouse J744A.1 macrophage cell line (original) (raw)

Introduction: Elevated plasma levels of uric acid (UA) are considered an independent risk factor for hypertension, diabetes, cardiovascular disease, endothelial and vascular damage, obesity, and metabolic syndrome. Even physiological concentrations of soluble UA have been proved to induce gene expression of macrophage-secreted inflammatory cytokines and stimulate production of reactive oxygen species in mature adipocytes. UA is also described as a powerful endogenous plasma antioxidant, which reveals a paradox of duality for this parameter. Aim: The aim of this study was to investigate the effect of UA on expression of antioxidant defense related enzymes in cultured J744A.1 macrophage cell line. Materials and methods: Mouse macrophage J744A.1 cells were treated with uric acid at increasing concentrations of 200 to 800 μM. Changes in expression levels of genes related to the metabolism of glutathione – glutamate-cysteine ligase, catalytic subunit (GCLc), glutathione peroxidase 1 (GPx...

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