【摘要】 胰岛素抵抗是 2型糖尿病的重要组成部分,是引起代谢综合征的病理基础,但它的发病机制还不是很清楚。近年来发现在许多胰岛素抵抗状态均伴随着游离脂肪酸 (freefattyacids,FFA)水平的升高,逐渐引起了人们注意,FFA不仅可以干扰葡萄糖代谢的不同环节,重要的是在胰岛素受体及受体后的信号转导方面发挥作用,降低胰岛素刺激的葡萄糖转运。噻唑烷二酮类药物(TZDs)是近年来上市的胰岛素增敏剂,其主要效应之一就是降低FFA水平。可见,以控制FFA代谢紊乱为目标设计具有新作用机制的药物,将会使胰岛素抵抗和 2型糖尿病的治疗前景变得更加广阔。更多还原

【Abstract】 Insulin resistance ,a key component of type 2 diabetes,is recognized as the pathological basis of the metabolic syndrome. H owever,its underlying mechanisms are still not fully understood.Recently,eleva ted levels of free fatty acids (FFA)have been observed in many insulin-resist ance states,which has gradually drawn attention.Not only do FFA interfere in se veral steps involved in glucose metabolism,but also play an important role in i nsulin signal transduction,resulting in decreased insulin-stimulated glucose t ransport. The thiazolidinediones,as insulin-sensitizing drugs,have entered th e market. A prominent effect of these agents is the lowering of circulating FFA levels and it is believed that targeting FFA metabolism may therefore offer wide r expectations in therapy for insulin resistance and type 2 diabetes.更多还原