Objective To observe the effects of Naotai Fang on CD34 of rats with cerebral infarction Methods 40 rats were randomly divided into 4 groups : blank group, model group, control group and Naotai Fang group. 10 rats per group. Adopted the left middle cerebral artery occlusion model of rats, detected CD34 protein in brain microvessel by immunohistochemistry method, and observed the change of infarct area of brain tissue in rats of every group. Results Compared with model group, the infarct area of Naotai Fang group was significantly narrow, the p...