OBJECTIVE To observe the preventive effect of Jiangtang Tiaozhiling on T2DM angiopathy and the role of visfatin expression.METHODS Ten health male Wistar rats in normal control group were only fed with standard diet.Fifty health male Wistar rats were fed with high glucose and fat diet+injected STZ intraperitoneal to induce diabetes mellitus.Thirty diabetes mellitus rats were randomly divided into 3 groups: diabetes mellitus model group(n=10,intragastric administration,td NS);Metformin group(n=10,intragastri...