益气活血方可升高脑缺血后大鼠红细胞Ｃ３ｂ受体花环率（ＲＢＣＣ３ｂＲＲ），降低红细胞免疫复合物花环率（ＲＢＣＩＣＲ），并可防止脑缺血后ＲＢＣＭＤＡ的升高和ＲＢＣＳＯＤ活性的降低，表明益气活血法对脑缺血后红细胞免疫功能具有调节作用，并能对抗脑缺血后自由基的毒害作用，其对抗自由基毒害的作用为调节红细胞免疫功能作用的可能机制之一 Yiqi Huoxue Recipe can increase the RBC C3b receptor rosette rate (RBCC3bRR), decrease the red blood cell immune complex rosette rate (RBCICR), and prevent the rise of RBCMDA after cerebral ischemia in rats. The decrease of high and RBC-SOD activity indicates that the method of replenishing qi and activating blood can regulate the immune function of erythrocytes after cerebral ischemia and can counteract the toxic effects of free radicals after cerebral ischemia. Its role in fighting free radicals is to regulate red blood cell immunity. One of the Possible Mechanisms of Functional Role