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The beta-cell function of subjects with combined normal glucose tolerance(NGT) and 1-hour hyperglycaemia
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF DIABETES
- Issue:
- 1
- DOI:
- 10.3969/j.issn.1006-6187.2010.01.003
- Key Word:
- 正常糖耐量;胰岛β细胞功能;口服葡萄糖耐量试验
Abstract： 目的 研究OGTT 1h高血糖人群的β细胞功能. 方法 将1177例受试者分为正常糖耐量(NGT)、糖调节受损(IGR)和糖尿病(DM)三组.前两组再依据OGTT 1hPG水平分为NGTN、NGT1H和IGRN、IGR1H四个亚组.将IGR组再分为空腹血糖受损(IFG)组和糖耐量受损(IGT)组以及IFG+IGT组.HOMA-IR评估胰岛素敏感性,HOMA-β、△I_(30)/△G_(30)(IGI)、葡萄糖OGTT曲线下面积(AUCg)评估胰岛β细胞分泌功能. 结果 (1)NGTN和IGRN组分别比NGT1H和IGR1H组的IGI高(P<0.05);HOMA-IR、AUCg在两亚组间均无统计学差异.(2)NGT1H组比IFG组和IGT组具有较高的AUCg,其HOMA-β比IFG组高,三组间HOMA-IR和IGI差异无统计学意义. 结论 NGT1H人群已存在胰岛β细胞功能异常,可能为胰岛素分泌缺陷尤其是早期相分泌受损所致.
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