Glutathione peroxidase, superoxide dismutase and catalase activities in children with chronic hepatitis Figure 1 from Glutathione redox cycle protects cultured endothelial cells against lysis by extracellularly generated hydrogen peroxide. Semantic Scholar Oxidative Stress Induced by Zearalenone in Porcine Granulosa Cells and Its Rescue by Curcumin In Vitro PLOS One Antioxidant Enzyme Catalase May Help Treat COVID 19 Medicine Sci News.com Full article: First line defence antioxidants superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX): Their fundamental role in the entire antioxidant defence grid Peroxidase Properties of Extracellular Superoxide : Arteriosclerosis, Thrombosis, & Vascular Biology