Oxidative stress is a shared characteristic of ME CFS and Long COVID PNAS Enhancing the skin's natural antioxidant enzyme system by the supplementation or Upregulation of Superoxide Dismutase, Catalase, Glutathione Peroxidase glisodin sod gliadin complex Induced swimming modified the antioxidant status of gilthead seabream (Sparus aurata) ScienceDirect First line defence antioxidants superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX): Their fundamental role in the entire antioxidant defence grid ScienceDirect Glutathione Peroxidase Catalase Cooperativity Is Required for Resistance to Hydrogen Peroxide by Mature Rat Oligodendrocytes Journal of Neuroscience Activity of Superoxide Dismutase, Catalase, Glutathione Peroxidase, and Glutathione Reductase in Different Stages of Colorectal Carcinoma Digestive Diseases and Sciences Springer Nature Link