摘要
目的评价老年糖耐量受损人群伴或不伴胰岛素抵抗的分布比例,以及代谢综合征和动脉粥样硬化在伴胰岛素抵抗人群和不伴胰岛素抵抗人群中的发生情况。方法测定156例老年糖耐量受损人群体重指数(BMI)、腰臀比(WHR)、胆固醇(TC),甘油三酯(TG),低密度脂蛋白胆固醇(LDLC),高密度脂蛋白胆固醇(HDLC)、血压、胰岛素、胰岛素曲线下面积(InsAUC)、胰岛素原(PI)、胰岛素原曲线下面积(PIAUC)、超敏C反应蛋白(hsCRP)、纤维蛋白原(Fg)等指标,并测量其颈动脉内膜中层厚度和动脉斑块的变化,根据HOMA胰岛素抵抗指数(HOMAIR)将糖耐量受损人群分为胰岛素抵抗组和非胰岛素抵抗组。结果(1)156例糖耐量受损患者中,胰岛素抵抗组118例(75.6%);非胰岛素抵抗组38例(24.4%);(2)胰岛素抵抗组BMI、WHR、TG、TC、LDLC、收缩压、舒张压、InsAUC、PIAUC、HOMAIRCRP及Fg分别为(26.8±2.1)kg/m2、0.96±0.23、(2.9±1.3)mmol/L、(5.4±1.8)mmol/L、(3.9±1.5)mmol/L、(154±12)mmHg、(96±7)mmHg、(239±71)mU/L、(170±42)pmol/L、(7.5±1.2)mg/L、(4.5±1.4)g/L,明显高于非胰岛素抵抗组(22.8±2.5)kg/m2、0.80±0.2、(1.7±1.2)mmol/L、(4.5±1.5)mmol/L、(3.0±0.8)mmol/L、、(133±10)mmHg、(83±1)mmHg、(180±66)mU/L、(109±25)pmol/L、(4.3±0.8)mg/L、(3.8±1.5)g/L(P<0.05或P<0.01);而HDLC明显低于非胰岛素抵抗组(1.0±0.4)mmol/L、(1.4±0.4)mmol/L(P<0.05);(3)与非胰岛素抵抗组比较,胰岛素抵抗组和非胰岛素抵抗组内膜中层厚度分别为〔(1.18±0.05)mm、(1.01±0.02)mm,P<0.01〕,动脉斑块的发生率在胰岛素抵抗组显著高于非胰岛素抵抗组,分别为17.8%和7.8%。结论老年糖耐量受损人群存在异质性,多数伴胰岛素抵抗,伴胰岛素抵抗者代谢综合征和动脉粥样硬化发生的危险性显著高于不伴胰岛素抵抗者。
Objective To observe the distribution proportion of insulin resistance(IR) and non -insulin resistant(NIR) in aged subjects with impaired glucose tolerance (IGT)and to evaluate their states of metabolic syndrome and atherosclerosis. Methods Some indexes were detected in elderly subjects with IGT such as body mass index (BMI), waist to-hip ratio (WHR), cholesterol (TC), triglyceride(TG), low density lipoprotein cholesterol(I.DL C) and high density lipoprotein cholesterol (HDI.-C), systolic blood pressure (SBP), diastolic pressure (DBP), insulin,insulin area under curve (InsAUC) , inflammation markers(hsCRP,Fg), proinsulin and proinsulin area under curve(PIAUC), IMT and carotid artery atheromatous plaque were also examined in some people. Subjects were divided into insulin resistance group(IR group) and nonlR group(NIR group) according to HOMA-IR. Results (1)156 subjects with IGT, the rates of IR and NIR were 75.6% and 24.4% respectively. (2) BMI, TG,TC,LDL-C,hsCRP, Fg, SBP, DBP, HOMA-IR, InsAUC, PIAUC in IR group[(26.8± 2. 1) kg/m^2 ,0.96±0.23,(2.9±1.3) mmol/L, (5.4± 1.8)mmol/L, (3.9± 1.5)mmol/L, (154± 12) mm Hg,(96±7) mm Hg,(239±71)mU/L,(170±42)pmol/L,(7.5±1.2)mg/L, (4.5±1.4) g/L ] were higher than those in NIR group[(22.8±2.5) kg/m^2 , 0.80±0.2,(1.7±1.2) mmol/L, (4.5± 1.5)mmol/L, 3.0±0.8 mmol/L,(133±10)mm Hg, (83±1)mm Hg, (180±66)mU/L, (109±25) pmol/L,(4.3±0.8)mg/L,(3.8±1. 5 )g/L], but HDL-C in IR group was lower than that in NIR group(1.0±0.4)mmol/L. (P〈0.05 or P〈0.01). (3) IMT and rate of carotid artery atheromatous plaque in IR group were increased significantly as compared with those of NIR group(P〈0.01). Conclusions Aged subjects with IGT exist heterogeneity, most of them have IR, the risk of metabolic syndrome and atherosclerosis in IR subgroup of IGT is significantly higher than those of NIR subgroup.
出处
《中华老年医学杂志》
CAS
CSCD
北大核心
2005年第10期739-741,共3页
Chinese Journal of Geriatrics
基金
中央保健委资助课题(皖B037)
安徽省卫生厅资助课题(2002B030)
关键词
糖尿病糖
2型
葡萄糖耐量试验
胰岛素抗体
遗传异质性
Diabetes mellitus, type 2
Glucose tolerance text
Insulin antibodies
Genetic heterogeneity