Overweight or obese has long been recognized as a risk factor for type 2 diabetes.超重或肥胖早已认识到作为一个危险因素， 2型糖尿病。 The results of a new study are clarifying the nature of the link between weight and diabetes.在一项新的研究结果是澄清的性质之间的联系，重量和糖尿病。 According to a report published today in the Nature, a protein released by fat tissue causes insulin resistance in mice.据报道，在今天出版的性质，一种蛋白质所发表的脂肪组织的原因胰岛素抵抗的小鼠。

Overweight people have protein RBP 4 almost twice as that of non-obese population.超重的人有蛋白的限制性商业惯例4月的近两倍，即非肥胖人口。 The main function of the protein RBP4 is to deliver vitamin A to body tissues.主要职能是蛋白质rbp4是提供维生素A ，以身体组织。 The scientists found higher levels of RBP 4 is linked with insulin resistance in mice studies.科学家发现，更高水平的限制性商业惯例四是联系在一起的胰岛素抵抗小鼠的研究。

“Being resistant to insulin is one of the major causes of diabetes,” Barbara B. Kahn of the Beth Israel Deaconess Medical Center and Harvard Medical School says. “正在抗胰岛素是其中一个主要的原因，糖尿病， ”芭芭拉乙卡恩的什么以色列deaconess医学中心和哈佛医学院的说。 “And even in the absence of diabetes, insulin resistance is a major risk factor for heart disease and early mortality.” “而且即使在没有糖尿病，胰岛素抵抗是一个重要的危险因素，心脏病和早期死亡率” 。

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