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不同糖耐量人群血糖波动与口服葡萄糖处置指数的相关性

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摘要 目的 :分析不同糖耐量人群血糖波动与口服葡萄糖处置指数的相关性。方法 :220例研究对象均进行75g葡萄糖耐量试验(oral glucose tolerance test,OGTT):47例正常糖耐量(normal glucose regulation,NGR),52例糖代谢异常(impaired glucose metabolism,IGM),61例单纯2 h血糖确诊的糖尿病(diabetes diagnosed by isolated 2-h glucose,DM2 h),60例空腹和2 h血糖均确诊的完全糖尿病(diabetes diagnosed by both fasting and 2-h glucose,DM)。口服葡萄糖处置指数衍生于OGTT试验。所有对象均进行连续72 h动态血糖监测,并计算血糖波动参数,包括血糖标准差(standard deviation of blood glucose,SD)、平均血糖(mean of blood glucose,MBG)、高血糖指数(high blood glucose index,HBGI)、连续每隔1 h血糖净作用(continuous overlapping net glycemic action calculated every 1 h,CONGA1)、平均血糖绝对差(mean of daily differences,MODD)、平均血糖波动幅度(mean amplitude of glycemic excursions,MAGE)。结果 :从NGR组、IGM组、DM2 h组至DM组,各组血糖波动指标逐渐升高(P<0.05):SD(0.9±0.3)、(1.5±0.5)、(1.9±0.6)和(2.2±0.6)mmol/L,MBG(5.9±0.5)、(6.7±0.7)、(7.7±1.0)和(8.7±1.5)mmol/L,HBGI 0.8(0.2~1.2)、2.0(1.2~3.7)、3.8(2.4~5.6)和6.4(3.2~9.5),CONGA1(1.0±0.2)、(1.3±0.2)、(1.5±0.3)和(1.8±0.4)mmol/L,MODD(0.9±0.3)、(1.4±0.4)、(1.8±0.7)和(2.1±0.7)mmol/L,MAGE(2.1±0.6)、(3.3±1.0)、(4.3±1.4)和(4.8±1.6)mmol/L,而口服葡萄糖处置指数逐渐减低(P<0.05)。同时SD、MBG、HBGI、CONGA1、MODD和MAGE与口服葡萄糖处置指数不仅在各亚组呈负相关(P<0.05),而且在总体人群中呈负相关(r值分别为-0.66、-0.66、-0.72、-0.59、-0.61和-0.65,均P<0.05)。结论 :不同糖耐量人群从NGR组、IGM组、DM2 h组至DM组,血糖波动指标升高与口服葡萄糖处置指数减低有关。
出处 《南通大学学报(医学版)》 2015年第5期397-401,401,共5页 Journal of Nantong University(Medical sciences)
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