近年来许多学者从两个方面对机体衰老的机制进行了研究:机体的衰老过程与细胞老化过程,后者是机体衰老的基础。红细胞由于直接暴露在高氧分压下,又有铁离子催化,特别易受脂质过氧化的损伤,所以成为研究细胞老化的最好材料之一。本文仅以老化红细胞为对象,研究其膜脂、膜蛋白及脂质过氧化与老化的关系。材料与方法一.老化红细胞的分离用生理盐水将40％的葡聚糖配成五种稀释度(27％、26％、25％、24％、23％),其比重 In recent years, many scholars have studied the mechanism of aging of the body in two aspects: the aging process of the body and the aging process of cells, which is the basis of the aging of the body. Erythrocytes are one of the best materials for studying cell aging due to direct exposure to high oxygen partial pressure and iron ion catalysis, which is particularly vulnerable to lipid peroxidation. In this paper, only aging red blood cells as the object, to study the membrane lipid, membrane protein and lipid peroxidation and aging. MATERIALS AND METHODS A. Separation of aged erythrocytes Forty percent of dextran was diluted to five dilutions (27%, 26%, 25%, 24%, 23%) with physiological saline, and its proportion