Glutathione redox cycle dysregulation in Huntington's disease knock in striatal cells ScienceDirect The effectiveness of compound X is oftentimes dependent on the presence of compounds Y and Z and so on. Endogenous compounds like glutathione get a lot of commercial attention but they do Full article: Gamma Glutamyl Transferase: The Silent Partner? Glutathione in liver diseases and hepatotoxicity. Semantic Scholar 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 Methylation Cycle and Glutathione Connection The Clinic of Natural Medicine