近年来,许多学者的临床观察和实验研究证明:人体内很多疾病的发生发展或病理过程与体内的自由基反应有关。人体细胞内存在天然的抗氧化系统一抗氧化剂和抗氧化酶,以保护细胞免受膜脂过氧化损伤。GSH—Px是组织内重要的抗氧化酶之一,既参加阻断脂质过氧化的一级引发作用、又能阻断二级引发作用。目前许多学者注重 In recent years, many scholars’ clinical observations and experimental studies have demonstrated that the occurrence and development of many diseases in the human body or pathological processes are related to the free radical reaction in the body. The body’s cells contain natural anti-oxidant antioxidants and antioxidant enzymes to protect cells from membrane lipid peroxidation. GSH-Px is one of the most important antioxidant enzymes in tissues. It not only participates in blocking the first-order priming of lipid peroxidation, but also blocks secondary priming. At present, many scholars stress