丙氨酸转氨酶水平与胰岛素抵抗及胰岛β细胞功能的关系  被引量:1

Correlations of serum alanine aminotransferase and insulin resistance, pancreatic B-cell function

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作  者:王永慧[1] 黎明[2] 高珊[1] 张秀娟[1] 李连霞[1] 张葵[2] 

机构地区:[1]首都医科大学附属北京朝阳医院内分泌科,100043 [2]中国医学科学院北京协和医院内分泌科

出  处:《中华医学杂志》2011年第48期3426-3430,共5页National Medical Journal of China

基  金:北京市科技新星计划基金(2004A27);首都医学发展基金(ZD2002-3034)

摘  要:目的探讨血清丙氨酸转氨酶(ALT)水平与胰岛素抵抗(IR)及胰岛β细胞功能之间的关系。方法收集2型糖尿病(T2DM)一级亲属351例,所有受试者均行75g口服葡萄糖耐量试验(OGTr),检测体质指数(βMI)、腰臀比、血压、血脂、A坍、天冬氨酸转氨酶(AST)、血糖、真胰岛素(TI)及胰岛素原(PI),采用稳态模式(HOMA)评价胰岛素抵抗(HOMA—IR)及胰岛β细胞功能(HOMA—β)。根据A¨四分间距,分为ALT1组(〈12.9U/L)、ALT2组(12.9~17.3U/L)、ALT3组(17.4~24.2U/L)、ALT4组(t〉24.2U/L)。结果随着ALT水平升高,ALT4组与ALT1组比较,βMI[(26.3±2.9)kg/m。比(23.2±3.7)kg/m。,P〈0.01]、HOMA—IR[1.93(1.21~3.26)比1.06(0.65~1.54),P〈0.01]、LnHOMA—β(2.00±0.32比1.87±0.28,P〈0.05)均升高,血压、血脂、血糖、TI、PI亦升高(P〈0.05或P〈0.01);随着代谢紊乱数目增多(无代谢紊乱与3~4个代谢紊乱数目组间比较),ALT[23.3(16.3~37.6)U/L比14.3(10.3~18.5)U/L,P〈0.01]和AST[21.5(18.3—32.8)U/L比17.9(15.5~22.1)U/L,P〈0.01]水平均升高;校正性别、年龄、βMI和腰臀比后血清ALT依然与血压、血脂、血糖、TI、2h-PI、2h-PI/TI、HOMA—IR和代谢紊乱数目呈正相关(r=0.117,0.236,P〈0.05或P〈0.01);多元逐步回归分析ALT与性别、甘油三酯、HOMA—IR、总胆固醇和2h-PI呈独立正相关(P〈0.05或P〈0.01)。结论高AIJT水平与代谢综合征、IR和胰岛母细胞功能代偿性增加密切相关,ALT水平独立于IR与代谢综合征相关。Objective To explore the correlations of serum alanine aminotransferase (ALT), insulin resistance and pancreatic B-cell function. Methods A total of 351 first-degree relatives of type 2 diabetes mellitus received a standard oral glucose tolerance test (OGTI') at our outpatient clinic. All subjects were analyzed for the parameters of body mass index ( BMI ), waist-hip ratio, blood pressure ( BP), serum lipids, ALT, aspartate aminotransferase (AST), plasma glucose (PG), true-insulin and proinsulin. Homeostasis model assessment (HOMA) was applied to assess the status of insulin resistance and pancreatic B-cell function. They were divided into 4 groups according to the quartiles of ALT: ALT1 group ( 〈12.9 U/L), ALT2 group (12.9 - 17.3 U/L), ALT3 group (17.4 -24.2 U/L) and ALT4 group ( t〉24. 2 U/L). The diagnosis of metabolic syndrome was made according to the definition of Chinese Diabetic Society. Results With the rising serum ALT levels (ALT4 vs ALT1 ), the levels of BMI [ (26. 3 ± 2.9) kg/m2 vs (23.2+3.7) kg/m2, P〈0.01], HOMA-IR [1.93(1.21 -3.26) vs 1.06(0.65-1.54), P 〈 0. 01 ] and LnHOMA-beta ( 2. 00 ± 0. 32 vs 1.87 ± 0. 28, P 〈 0. 05 ) were elevated ; BP, serum lipids, PG, true-insulin and proinsulin also increased ( P 〈 0. 05 or P 〈 0. 01 ). The levels of serum ALT [ 23. 3 (16.3-37.6) vs 14.3 (10.3-18.5) U/L, P〈0.01] and AST [21.5 (18.3-32.8) U/L vs 17.9 (15.5 -22. 1) U/L, P 〈0. 011 increased with the rising number of metabolic disorders (0 vs 3 -4 metabolic disorders). After adjustments for gender, age, BMI and waist-hip ratio, serum ALT were still positivelycorrelated with BP, serum lipids, PG, fasting true-insulin, 2 h proinsulin, 2 h proinsulin/true-insulin, HOMA-IR and the numbers of metabolic disorder (r =0. 117 -0. 236, P 〈0. 05 or P 〈0. 01 ). After adjustments for gender, age, BMI, waist-hip ratio and HOMA-IR, the serum ALT level remained positively correlated with the numbers o

关 键 词:丙氨酸转氨酶 胰岛素抗药性 代谢综合征 胰岛Β细胞功能 

分 类 号:R587.1[医药卫生—内分泌]

 

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