糖尿病(diabetes mellitus,DM)是以高血糖为主要表现的内分泌代谢疾病,已经成为危害世界人民健康的主要慢性疾病。2型糖尿病(type 2 diabetes mellitus,T2DM)为糖尿病的主要发病类型,占所有糖尿病患者的90%以上,其特点是以胰岛素抵抗为主到胰岛素分泌不足最后致使胰岛素依赖。在中国,这一情况尤为严重,全国糖尿病流行病学 Diabetes mellitus (DM) is an endocrine and metabolic disease characterized by hyperglycemia and has become a major chronic disease that endangers the health of people in the world. Type 2 diabetes mellitus (T2DM) is the main type of diabetes, accounting for more than 90% of all diabetic patients. It is characterized by predominantly insulin resistance and insulin deficiency, which ultimately leads to insulin dependence. In China, this situation is particularly serious, the National Diabetes Epidemiology