Selenium is an essential trace element, moderate intake of selenium can increase levels of selenium, glutathione peroxidase make (GSH-PX) increased activity. Selenium deficiency can affect the body antioxidant and immune function, and cause Keshan disease. Selenium yeast rich in B vitamins.
1, free radical scavenging and antioxidant effects of selenium.
Selenium in GSH-PX activity center, GSH-PX cofactors, can catalyze hydrogen peroxide and organic hydroperoxide reduction. Selenium yeast treatment of coronary heart disease can plasma lipid peroxidation (LPO) mean decrease, GSH-PX ratio increased, selenium can be direct or indirect antioxidant effects, reducing or preventing lipid peroxidation, lower body LPO concentration, l high levels of prostacyclin PGI2 make PGI1 / TXA1 (thromboxane A2) ratio increased to prevent thrombosis. Se-GSH-PX activity increased in large numbers in the blood vessel wall lesions cleared cohesion cholesterol, regulate lipid metabolism, thereby preventing the occurrence of atherosclerosis and development. In terms of anti-aging effects of selenium, now that its main mechanism of action is diselenide participate Se-GSH-PX and play the role of antioxidant and free radical scavenger selenium itself. Selenium can scavenge free radicals produced by the particles in vivo metabolism, free radical particles that play an important role in carcinogenesis process, while protecting the cell membrane and the contents from damage.
1, free radical scavenging and antioxidant effects of selenium
2, selenium can improve immunity
3, the role of DNA
4. Effects of selenium on cardiomyopathy