Glutathione and the Cofactors Antioxidant enzymes that target hydrogen peroxide are conserved across the animal kingdom, from sponges to mammals Scientific Reports Modeling the Catalytic Cycle of Glutathione Peroxidase by Nuclear Magnetic Resonance Spectroscopic Analysis of Selenocysteine Selenenic Acids Journal of the American Chemical Society 9.41 Selenoproteins Nutrition Flexbook OXIDATIVE STRESScan contribute to hypothyroid symptoms When the body has to deal with too much Oxidative Stress from inflammation, then the enzyme Glutathione Peroxidase [GPx] has to work overtime to inactivate damaging " Figure 10 from Glutathione Peroxidase 1 in Health and Disease: From Molecular Mechanisms to Therapeutic Opportunities Semantic Scholar