Glutathione Participation in the Prevention of Cardiovascular Diseases Frontiers Research progress of glutathione peroxidase family (GPX) in redoxidation Oxidative stress: the big issue Igennus Healthcare Nutrition 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 The Synergetic Coupling among the Cellular Antioxidants Glutathione Peroxidase Peroxiredoxin and Other Antioxidants and its Effect on the Concentration of H2O2 Scientific Reports Potential Role of Glutathione Antioxidant Pathways in the Pathophysiology and Adjunct Treatment of Psychiatric Disorders