Glutathione Peroxidase: An Antioxidant Enzyme In Health And Disease Glutathione and the Cofactors Selenium is one of the few nutrients that directly controls how your body handles oxygen at the cellular level. Every time your cells produce energy, they generate peroxides as a byproduct. That Douglas Laboratories Hypo Selenium 200 mcg. Antioxidant Protection and Co Factor Support for Glutathione Peroxidase Keshan Disease, Selenium Deficiency, and the Selenoproteome New England Journal of Medicine SciELO Brasil Catalytic application of selenium and tellurium compounds as glutathione peroxidase enzyme mimetics Catalytic application of selenium and tellurium compounds as glutathione peroxidase enzyme mimetics