二甲双胍对代谢综合征患者葡萄糖代谢率及脂肪因子水平的影响

目的探讨代谢综合征(MS)患者葡萄糖代谢率(M)、脂肪水平变化及二甲双胍治疗对其的影响。方法筛选36~60岁MS患者15例和健康对照组20例。采用高胰岛素-正常血糖钳夹技术检测M,评估胰岛素抵抗(IR)程度;检测血浆、血浆抵抗素(resistin)、脂联素(adiponectin)、瘦素(leptin)浓度及空腹胰岛素(FINS)、血糖、血脂等生化指标。MS患者给予二甲双胍500 mg口服,3次/d,治疗12周,于治疗结束后重复检测M、血浆resistin、adiponectin与leptin浓度等。结果①MS组的腰围(WC)、体重指数(BMI)、空腹血糖(FPG)、2h血糖(2hPG)、FINS及甘油三酯(TG)等均显著高于对照组,高密度脂蛋白-胆固醇(HDL-C)明显低于对照组,差异均有统计学意义(均P<0.05)。高胰岛素正常血糖钳夹试验稳态时(120~150 min),MS组的M显著低于对照组,差异有统计学意义(P<0.01)。两组的血浆resistin水平无显著性差异(P>0.05);MS组的血浆leptin水平显著高于对照组,adiponectin水平显著低于对照组,差异均有统计学意义(均P<0.01)。②治疗12周后,MS组的BMI、WC、FINS、FPG及2hPG明显降低,与治疗前相比差异均有统计学意义(P<0.05,P<0.01),TG、胆固醇(TC)、HDL-C及低密度脂蛋白-胆固醇(LDL-C)等无显著性变化。③治疗前后M分别为(4.01±1.29)和(6.53±1.15)mg·kg-1·min-1,治疗12周后,MS组M明显升高(P<0.05)。④治疗前后MS组血浆resistin,adiponectin水平无显著变化(均P>0.05),leptin水平显著降低(P<0.01)。结论二甲双胍治疗可以减轻MS患者的IR,其机制可能与体重减轻及leptin抵抗改善有关。

Effects of Metformin on Glucose Metabolic Rate and Adipokins in Patients with Metabolic Syndrome

Objective To investigate the effects of metformin on glucose metabolic rate(M)and plasma resistin,adiponectin and leptin levels in patients with metabolic syndrome(MS).Methods Fifteen patients with MS aged from 36 to 60 years were selected as MS group,and 20 healthy adults served as control group.Glucose metabolic rate was evaluated by using hyperinsulinemic euglycemia clamp technique.Plasma adiponectin and leptin concentrations were determined by using enzyme linked immunosorbent assay.Blood pressure,waist...