妊娠期不同糖耐量状态下胰高血糖素和胰高血糖素样肽1分泌特点  被引量:5

Secretion of glucagon and glucagon-like peptide-1 in different glucose tolerance status during pregnancy

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作  者:王相清[1] 袁涛[1] 赵维纲[1] 付勇[1] 董颖越[1] 和洁[1] 

机构地区:[1]中国医学科学院北京协和医学院北京协和医院内分泌科国家卫生和计划生育委员会内分泌重点实验室,100730

出  处:《中华临床营养杂志》2015年第4期195-202,共8页Chinese Journal of Clinical Nutrition

基  金:国家临床重点专科建设项目(WBYWBYZ2011-873);北京市自然科学基金(7122144)

摘  要:目的评估不同糖耐量状态下孕妇临床及生化特征,以及糖负荷后胰岛素、胰高血糖素及胰高血糖素样肽1(GLP-1)的分泌特点。方法选取2009年1月至2012年6月北京协和医院定期规律随诊的孕妇,纳入妊娠24—28周50g葡萄糖负荷试验(GCT)阳性者74例,进一步行100g口服葡萄糖耐量试验(OGTT),将孕妇分为妊娠糖尿病(GDM)组(25例)、糖耐量异常(IGT)组(25例)和糖耐量正常(NGT)组(24例)。比较3组孕妇的一般临床资料和生化指标,计算及评估胰岛素抵抗和胰岛B细胞分泌功能相关指数。OGTT中,同时测定血糖、胰岛素、胰高血糖素和GLP-1水平,评估各激素的分泌特点,分析其与其他指标的相关性。结果GDM组孕妇的GCT血糖值、糖化血红蛋白高于NGT组[(9.21±0.75)mmol/L比(8.52±0.50)mmol/L,(5.39±0.34)%比(5.18±0.20)%,均P〈0.05]。OGTY中,GDM组血糖曲线下面积显著高于IGT组和NGT组[(26.58±2.02)mmol/(L·h)比(23.20±1.51)、(19.84±1.95)mmol/(L·h),均P〈0.05]。GDM和IGT两组的胰岛素分泌高峰延迟至糖负荷后2h,GDM组3h胰岛素水平显著高于NGT组(P〈0.05)。与NGT组相比,GDM组和IGT组OGTT各点胰高血糖素水平及曲线下面积有降低趋势,但差异无统计学意义。各组胰高血糖素水平均在糖负荷后3h出现峰值。与NGT组相比,从IGT组至GDM组OGTT各点GLP-1水平有逐渐升高趋势,但差异无统计学意义。GLP-1分泌峰值在NGT组和IGT组出现于糖负荷后1h,在GDM组出现于糖负荷后2h,各组GLP-1水平均在糖负荷后3h达到谷值。GDM组1和2hGLP-1与血糖比值(GLP/BG)显著低于NGT组(P〈0.05)。OGTT胰高血糖素曲线下面积与空腹血糖(r=-0.287,P=0.013)及OGTT1h血糖(r=-0.266,P=0.022)水平呈负相关,与胰岛素分泌敏感性指数(ISSI)(r=0.297,P=0.010)和Objective To evaluate the clinical and biochemical characteristics of pregnant women with different glucose tolerance status, and their secretion characteristics of insulin, glucagon and glucagon-like peptide- 1 (GLP- 1 ) after oral glucose challenge. Methods We analyzed 74 cases pregnant women with positive results of 50 g glucose challenge test in 24 - 28 gestational weeks, who received regular obstetrical follow-up in Peking Union Medical College Hospital from January 2009 to June 2012. A further 100 g oral glucose tolerance test (OGTT) was performed, based on which the included women were divided into three groups, namely gestational diabetes mellitus (GDM) group (n =25 ), impaired glucose tolerance (IGT) group (n = 25 ) and normal glucose tolerance (NGT) group ( n = 24 ). The general clinical data and biochemical indexes of the three groups were compared, and the indexes about insulin resistance and the function of pancreatic islet beta cells were calculated. Glucose, insulin, glucagon and GLP-1 were measured in OGTT. The secretion characteristics of each of these hormones and their correlation with other indicators were evaluated. Results Compared with the NGT group, the GCT [ (9. 21 +-0. 75) mmol/L vs. (8.52 +-0. 50) mmol/L, P 〈0. 05] and glycosylated hemoglobin Alc [ (5. 39 +-. 34)% vs. (5.18 +- 0. 20) %, P 〈 0. 05 ] were significantly higher in the GDM group. In OGTY, the area under curve (AUC) of glucose in the GDM group was significantly higher than that in the IGT group and NGT group [ (26.58 +-2.02) mmol/(L · h) vs. (23.20 +- 1.51) mmol/(L· h), (26. 58 +- 2. 02) mmol/(L · h) vs. ( 19. 84 +- 1.95) mmol/( L · h), both P 〈 0. 05 ]. The peak values of insulin' secretion in the GDM group and IGT group were delayed to 2 hours after OGTL The 3-hour insulin level in the GDM group was significantly higher than that in the NGT group (P 〈 0. 05). Compared with the NGT group, the glucagon levels

关 键 词:妊娠期糖尿病 胰岛素抵抗 胰高血糖素 胰高血糖素样肽1 

分 类 号:R587.1[医药卫生—内分泌]

 

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