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2型糖尿病 糖耐量低减及糖尿病患者亲属胰岛 细胞功能变化的研究 |
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邓尚平 吴桐 陈树 张梅 王汝莲 梁亚明 胡茂清 张学军 李伟
【摘要】 目的 观察四川地区2型糖尿病(DM)患者、糖耐量低减(IGT)者及糖尿病血缘亲属的胰岛β细胞功能的变化,包括血中胰岛素原(PI)水平的变化及其意义。方法 采用特异性胰岛素(I)、C肽(CP)和人胰岛素原放射免疫分析试剂盒(均为美国Linco公司产品)测定了糖耐量正常(NGT)对照者(A组,49例)、2型DM血缘亲属NGT者(B组,52例)、IGT/空腹血糖升高(IFG)者(C组,33例)和新诊断的2型DM患者(D组,81例)的空腹及试餐后2小时上述三种激素的浓度,进行了各组内肥胖和非肥胖两个亚组的比较,以及各大组间的对比分析。结果 (1)各组内三种激素在肥胖亚组均比非肥胖亚组高;(2)排除了肥胖因素,I及CP在IGT/IFG组最高。在DM组有下降趋势,但三种激素的空腹值仍高于对照组和亲属组;(3)无论肥胖或非肥胖亚组,PI从A→B→C→D组呈递增趋势,在D组无下降趋势,仍继续增高;(4)以PI/I及PI/CP比值(%)进行组间比较,发现无论空腹抑餐后,均以DM组最高;(5)以大于A组PI/I及PI/CP比值的x±2s为判断标准,发现“不成比例”的PI/I增高者之检出率在A、B、C及D组分别为6.1%、9.6%、27.3%及61.7%;以PI/CP为参数则各组分别为10.2%、32.7%、30.3%和44.4%。结论 “不成比例”的PI分泌增加是β细胞功能缺陷的表现之一,也可能是2型DM的预示标志之一。 【关键词】 糖尿病,非胰岛素依赖型; 胰岛素; C肽; 胰岛素原
Changes of islet β-cell function in the patients with type 2 diabetes, subjects of impaired glucose tolerance and relatives of diabetics
DENG Shangping WU Tong,CHEN Shu et al (The First Hospital Affiliated to West China University of Medical Science,Chengdu 610041)
【Abstract】 Objective To observe the changes of islet β-cell function in patients with type 2 diabetese, subjects with impaired glucose tolerance (IGT) and relatives of diabetics in Sichuan district, including change of serum proinsulin (PI) level and its significance. Methods Insulin (I), C-peptide (CP) and human proinsulin were measured in fasting and 2h postprandial sera of newly diagnosed patients with type 2 diabetics (Group D, n=81), subjects of IGT/impaired fasting glucose (IFG) (Group C, n=33), consanquineous relatives of diabetics (Group B, n=52) and normal glucose tolerant subjects (Group A, n=49) by respective radioimmunoassay kits. The results were compared between the obese (including over-weighted) and non-obese (including non-over-weighted) subgroups in each group, and among the 4 groups mentioned above. Results (1)The three hormone levels were higher in the obese subgroups t[1] [2] [3] 下一页 上一个医学论文: 2型糖尿病家系一级亲属非糖尿病同胞血糖 胰岛素和C 下一个医学论文: 胰岛素抵抗是糖耐量正常人群糖耐量恶化的最重要危险因素
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