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 reductase Wikipedia Glutathione redox cycle dysregulation in Huntington's disease knock in striatal cells ScienceDirect Intravenous Glutathione Enhances Cycling Time Trial Performance Hammer Nutrition Glutathione redox cycle. Glutathione (GSH) is synthesized from the Download Scientific Diagram