Objective:to approach the mechanism of action of Xuemaitong granula to treat carotis artherosclerosis.Methods:1.clinical study :77 cases of carotis artherosclerosis were randomly divided into treatment group(45 cases treated in Xuemaitong granula)and control group(32 cases treated in Simvastatin),the course of treatment was 6 months.The blood fat,SOD,MDA and matrix metalloproteinase were observed before and after treatment.2.animal experiment:the rabbit CAS model were induced by high fat animal feeds and ai...