Oxidative stress in Portuguese children with Down syndrome GLUTATHIONE PEROXIDASE, SELENIUM AND VITAMIN E Free radicals "steal" electrons from the chemical structures that make up cell membranes. When the structures making up the cell membranes loose electrons they too become Glutathione Reductase (GR) Assay Kit (ab83461) Abcam Insights into the Role of Glutathione Peroxidase 3 in Non Neoplastic Diseases Figure 10. Glutathione Peroxidase Catalase Cooperativity Is Required for Resistance to Hydrogen Peroxide by Mature Rat Oligodendrocytes Journal of Neuroscience The glutathione peroxidase Gpx4 prevents lipid peroxidation and ferroptosis to sustain Treg cell activation and suppression of antitumor immunity: Cell Reports