2型糖尿病合并非酒精性脂肪性肝病与胰岛素抵抗及血脂代谢紊乱的关系

目的 分析2型糖尿病合并非酒精性脂肪性肝病( NAFLD)与胰岛素抵抗及血脂代谢紊乱之间的关系,并探讨诱发这些疾病的相关危险因素.方法 选取2型糖尿病患者200例,其中合并NAFLD者99例,未合并NAFLD者101例.测量身高、体重、腰围、臀围；检测肝酶、糖脂代谢指标,计算体重指数(BMI)、腰臀比以及改良的胰岛素C肽指数(HOMA-C肽),2组进行比较.结果 NAFLD组体重、BMI、腰围、臀围、丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶、甘油三酯(TG)、总胆固醇、低密度脂蛋白胆固醇均明显增高(均P＜0.01),而年龄、病程、高密度脂蛋白胆固醇低于非NAFLD组(均P＜0.05).NAFLD组高脂血症尤以高TG血症发生率明显增加(P＜0.01).NAFLD组空腹和餐后1h血糖[(2.07±0.36对1.83±0.43) mmol/L,(14.04±3.96对12.59±3.90)mmol/L]、空腹及餐后1hC肽[(2.79±1.15对2.08±1.29) ng/ml,(1.33±0.45对1.12±0.54)ng/ml]、HbA1c[(2.09±0.33对1.96±0.28)％]、HOMA-C肽指数均明显增高(P＜0.05或P＜0.01).logistic 回归分析显示TG、BMI、ALT是2型糖尿病合并NAFLD的主要危险因素(P＜0.05或P＜0.01).结论 高TG血症、肥胖以及ALT升高增加2型糖尿病合并NAFLD的患病风险.

Association of nonalcoholic fatty liver disease with insulin resistance and dyslipidemia in patients with type 2 diabetes mellitus

Objective To investigate the association of nonalcoholic fatty liver disease (NAFLD) with insulin resistance and dyslipidemia in patients with type 2 diabetes mellitus,and to analyze the risk factors.Methods A total of 200 patients with type 2 diabetes mellitus including 99 with NAFLD and 101 without NAFLD were recruited.Height,weight,waist circumference,hip circumference,liver enzymes,blood lipids,fasting and postprandial blood glucose,insulin,C-peptide,and HbA1C levels were detected.Body mass index ( BMI),waist-hip ratio( WHR),and improved insulin and C-peptide index(HOMA-C-peptide) were calculated and compared between two groups.Results Compared with non-NAFLD group,weight,BMI,waist circumference,hip circumference,alanine aminotransferase ( ALT),aspartate aminotransferase,triglyceride ( TG ),total cholesterol ( TC ),low density lipoprotein-cholesterol(LDL-C) were significantly higher in NAFLD group( all P＜0.01 ),while age,duration,and high density lipoprotein-cholesterol were lower( all P＜0.05 ).The incidence of combined hyperlipidemia,especially hypertriglyceridemia,was significantly higher in NAFLD group( P＜0.01 ).Fasting and postprandial 1 h blood glucose [ ( 2.07 ±0.36 vs 1.83 ±0.43 ) mmol/L,( 14.04 ± 3.96 vs 12.59 ± 3.90 ) mmol/L ],fasting and postprandial 1 h Cpeptide [ (2.79± 1.15 vs 2.08±1.29 ) ng/ml,( 1.33 ±0.45 vs 1.12±0.54) ng/ml ],HbA1C [ (2.09±0.33 vs 1.96±0.28) ％ ],and HOMA-C-peptide index were significantly increased in NAFLD group ( P ＜ 0.05 or P ＜ 0.01 ).Logistic analysis showed that TG,BMI,and ALT were the major risk factors of NAFLD in type 2 diabetes mellitus( P＜0.05 or P＜0.01 ).Conclusion Triglyceridemia,obesity,and raised ALT level were significantly associated with an increased risk of NAFLD in patients with type 2 diabetes mellitus.