Principle of the Procedure

Glutathione Peroxidase (GSH-Px) is one of the main enzymes that catalyze the oxidation of reduced glutathione (GSH) in the glutathione redox cycle. GSH-Px not only specifically catalyzes the reaction between reduced glutathione and ROS to form oxidized glutathione GSSG, thereby protecting the biofilm from ROS damage and maintaining the normal function of cells; it also protects the liver and improves the body immunity, antagonizing the harmful effects of harmful metal ions on the body and increasing the body’s ability to resist radiation. This kit provides a simple method for detecting activity of GSH-Px in a variety of biological samples such as Serum, Plasma, Animal Tissues, Cells and Bacteria. GSH-Px catalyzes H2O2 to oxidize GSH to produce GSSG; glutathione reductase (GR) catalyzes NADPH to reduce GSSG to regenerate GSH, while NADPH oxidizes to produce NADP+; NADPH has a characteristic absorption peak at 340 nm, while NADP+ does not; NADPH dehydrogenation rate is determined by measuring the decrease rate of absorbance at 340 nm to calculate GSH-Px activity.