GPX

Glutathione peroxidase (GPx) is an important peroxide disintegrating enzyme widely present in the organism.The active center of GSx is selenocysteine, and the amount of its activity can reflect the selenium level of the organism. Selenium is a component of the GSx enzyme system, which catalyzes the change of GSH to GSSG and the reduction of toxic peroxides to non-toxic hydroxyl compounds, thus protecting the structure and function of cell membranes from the interference and damage caused by peroxides.The reduction of NADPH is linearly correlated with the activity of glutathione peroxidase.