近年来的研究发现,机体内氧自由基水平异常常与衰老和一些病理过程有关,尤其与动脉粥样硬化性疾病关系密切。本文通过测定不同年龄健康人和老年冠心病患者外周红细胞超氧化物歧化酶(Superoxide dismutase,SOD)活性,以探讨SOD与机体衰老及冠心病发病机制的关系. 对象和方法 健康受检者335例,男152例,女183例,年龄2～76岁,平均25.65岁。18～45岁皆为献血员,18岁以下和45岁以上为本院检查(包括体检、胸透、心电图,血脂、血糖、肝、肾功能、血,尿、粪等 In recent years, the study found that abnormal levels of oxygen free radicals in the body often associated with aging and some pathological processes, especially with atherosclerotic diseases are closely related. In this paper, we measured the activity of superoxide dismutase (SOD) in peripheral erythrocytes in healthy and elderly patients with coronary heart disease to explore the relationship between SOD and the pathogenesis of senescence and coronary heart disease.Methods 335 healthy subjects , 152 males and 183 females, aged 2 to 76 years, an average of 25.65 years old. 18 to 45 years of age are blood donors, 18 years of age and over 45 years of age for the hospital for examination (including physical examination, chest X-ray, ECG, blood lipids, blood glucose, liver, kidney function, blood, urine,