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 Glutathione redox cycle. Glutathione (GSH) is synthesized from the Download Scientific Diagram The glutathione cycle: Glutathione metabolism beyond the glutamyl cycle Bachhawat 2018 IUBMB Life Wiley Online Library Intravenous Glutathione Enhances Cycling Time Trial Performance Hammer Nutrition Glutathione redox cycle dysregulation in Huntington's disease knock in striatal cells ScienceDirect Glutathione reductase Wikipedia