老年糖尿病患者血浆抵抗素与胰岛素抵抗关系的研究

目的　了解老年糖尿病患者血浆抵抗素的浓度及其与肥胖、胰岛素敏感性、血糖、血脂的关系。　方法　选择 5 1例老年 2型糖尿病患者和 4 2例健康老年人 ,分别分为肥胖组和非肥胖组 ,用竞争性酶联免疫吸附法测定各组空腹血浆抵抗素水平 ,同时检测空腹血糖、空腹胰岛素、血脂、胰岛素敏感指数 ,测量受试对象腰围、臀围、腰臀比。　结果　在对照组和糖尿病组中 ,肥胖组空腹血浆抵抗素水平显著高于非肥胖组 (P <0 0 5 ) ;糖尿病非肥胖组空腹血浆抵抗素水平显著高于对照非肥胖组 (P <0 0 1) ,但与对照肥胖组比较 ,差异无显著性 ;糖尿病肥胖组空腹血浆抵抗素水平显著高于对照肥胖组 (P <0 0 5 )。抵抗素与体质指数呈正相关关系 (r =0 2 5 ,P <0 0 5 ) ,与胰岛素敏感指数及空腹胰岛素呈负相关关系 (r=- 0 32、- 0 35 ,P <0 0 5 )。而抵抗素与空腹血糖、各项血脂指标、年龄、性别及腰臀比之间无明显相关性。　结论　在肥胖发展为糖尿病的过程中 ,抵抗素可能参与了胰岛素抵抗 ,并有可能成为诊断胰岛素抵抗的指标之一。

A study on the relationship between serum resistin and insulin resistance in the elderly patients with diabetes

Objective To find out the relationship between the serum resistin levels and obesity, insulin sensitivity, blood-glucose as well as blood lipid in the elderly with diabetes. Methods Senile patients (51) suffering from type 2 diabetes and non-diabetic controls(42) were selected. Their serum resistin levels after an overnight fasting were measured by competitive ELISA. Other data including fasting blood-glucose, insulin, blood lipid, insulin sensitivity index, waistline, hipline and WHR were measured. Results (1)In non-diabetic controls, fasting resistin level was significantly higher in obese subjects than that in those persons with normal weight (P<0.05). (2)In patients with diabetes, fasting resistin level was higher in obese subjects than that in normal weight person (P<0.05). (3)Non-obese patients with diabetes had high serum resistin than non-obese healthy ones (P<0.01), while their resistin level was not higher than that of non-diabetic obese subjects. The resistin level in the obese patients with diabetes was significantly higher than that of non-diabetic controls (P<0.05). Resistin level showed a positive correlation with BMI (r=0.25, P<0.05), and a negative correlation with ISI (r=-0.32, P<0.05) or FINS (r=-0.35, P<0.05). No correlation between resistin and fasting blood-glucose, blood lipid, age, gender and WHR was found. Conclusions Resistin may play a role in the insulin resistance during the developing of obesity to diabetes. Resistin might be one of the indicators for insulin resistant.