Glutathione redox cycle. Glutathione (GSH) is synthesized from the Download Scientific Diagram Intravenous Glutathione Enhances Cycling Time Trial Performance Hammer Nutrition Glutathione redox cycle dysregulation in Huntington's disease knock in striatal cells ScienceDirect Influence of exogenous ascorbic acid and glutathione priming on mitochondrial structural and functional systems to alleviate aging damage in oat seeds BMC Plant Biology Springer Nature Link TJ. Glutathione peroxidase is an important enzyme in cellular antioxidant defense systems, detoxifying peroxides and hydroperoxides. As a component of the glutathione cycle, it protects the liver from reactive oxygen metabolites. Selenocysteine