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 " 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 balance of prooxidants and antioxidants in the human body is heavily reliant on an adequate supply of dietary micronutrients. Important antioxidant enzymes like superoxide dismutase (SOD) William Wallace, Ph.D Glutathione Related Enzymes and Proteins: A Review image002.jpg