The glutathione cycle: Glutathione metabolism beyond the glutamyl cycle Bachhawat 2018 IUBMB Life Wiley Online Library 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 Intravenous Glutathione Enhances Cycling Time Trial Performance Hammer Nutrition Intravenous Glutathione Enhances Cycling Time Trial Performance Hammer Nutrition Glutathione redox cycle. Glutathione (GSH) is synthesized from the Download Scientific Diagram