二甲双胍对2型糖尿病合并动脉粥样硬化患者血清基质金属蛋白酶2、IL-6、8的影响

目的：探讨二甲双胍对2型糖尿病合并动脉粥样硬化患者基质金属蛋白酶2（Matrixmetalloproteinase-2，MMP-2）及IL-6、8的影响。方法：51例2型糖尿病患者根据颈动脉内中膜厚度（IMT）及斑块分为动脉粥样硬化组（35例）和无动脉粥样硬化组（16例）。动脉粥样硬化组中又分为治疗组（20例，二甲双胍治疗24周）和未治疗组（15例）。随访24周，治疗前、后均检测生化及MMP-2、IL-6、8等指标。结果：（1）Spearman相关分析显示体重指数（BMI）和MMP-2和IL-6、8显著正相关（P＜0．01）。（2）治疗前动脉粥样硬化组MMP-2和IL-6、8与无动脉粥样硬化组比较，显著升高（P＜0．01），与无动脉粥样硬化组比较，TG显著高，而HDL-C显著降低（P＜0．05）。（3）与治疗前比较，治疗组治疗24周后MMP-2和IL-6、8明显下降（P＜0．01），TC、TG和低密度脂蛋白胆固醇（LDL-C）显著下降（P＜0．01），HDL-C上升（P＜0．01）。结论：2型糖尿病合并动脉粥样硬化患者MMP-2和IL-6、8明显升高。二甲双胍降低血糖、体重外，可以通过减低MMP-2和IL-6、8水平来发挥其抗动脉粥样硬化作用。

The Effect of Metformin Treatment on Serum Matrix Metalloproteinase-2,IL-6 and 8 in Patient with T2DM and Atherosclerosis

Objective：To investigate the effect of metformin on the MMP-2 and IL-6, 8 in patients with type 2 diabetes. Methods.. To recruit 51 T2DM patients with atherosclerosis. The patients were treated with metformin for 24 weeks without a change in previous medications. Levels of plasma lipids and MMP-2 and IL-6, 8 were measured. To compare the treatment effects between three groups after 24 weeks treatment. Results： After metformin for 24 weeks, MMP-2 and II.-6, 8, TC and TG were lower than before, HDL-C were increased. Conclusion.. Beneficial effects of metformin may be due to non-lipid actions, metformin can exert anti-atherosclerotic effect by reducing the expression of MMP-2 and IL-6,8.