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衰老是生物在生命过程中,机体的形态和功能逐渐衰退的表现。人在60岁后,衰老速度加快,器官功能下降。服用抗衰老药就是要使人的衰老速度减慢,延长有效的工作年龄。一、衰老的自由基论及抗氧剂在机体的一些生理或病理过程中会产生自由基。当分子氧得到一个电子即可形成超氧基O_2(Superoxide radical),它经氧化物歧化酶(Supeioxide dismutase)的催化生成H_2O_2,H_2O_2在Fe~(3+)催化下形成活性很强的OH自由基。自由基具有高度
Aging is a manifestation of the gradual decline of the body’s form and function during the life process of the organism. After the age of 60 years, people have accelerated their aging and their organs have declined. Taking anti-aging drugs is to slow down the aging process and extend the effective working age. I. Aging Free Radicals Antioxidants produce free radicals in some physiological or pathological processes in the body. When the molecular oxygen gets an electron, superoxide radical (O_2) can be formed. It is catalyzed by Supeioxide dismutase to generate H_2O_2, and H_2O_2 is catalyzed by Fe~(3+) to form a very active OH radical. base. Free radicals have a high degree of