蚕茧、马齿苋对2型糖尿病大鼠糖脂代谢影响的实验研究

目的 探讨蚕茧、马齿苋对实验性2型糖尿病大鼠糖脂代谢的影响.方法 利用链尿佐菌素建立2型糖尿病大鼠动物模型.随机分为糖尿病模型组、蚕茧组、马齿苋组、蚕茧+马齿苋组,另设正常对照组.治疗8周,检测大鼠血糖(Glu)、三酰甘油(TG)、超氧化物歧化酶(SOD),丙二醛(MDA)和谷胱甘肽过氧化物酶(GSH-Px)含量及活性,并计算胰岛素抵抗指数(HOMA-IR).结果 与DM模型组比较,蚕茧+马齿苋联合组血糖降低了53.3%(P<0.01); TG降低了44.1%(P<0.05);HOMA-IR降低了56.1%(P<0.05);SOD、GSH分别升高了25%(P<0.01)和8.4%(P<0.05);MDA降低了53.6%(P<0.05);其余各组间差异无统计学意义.结论 蚕茧和马齿苋联合补充可明显改善糖尿病大鼠糖脂代谢、减轻胰岛素抵抗、并能有效提高其抗氧化能力、减少脂质过氧化产物的生成.

The Experimental Rearch of Silkworm Cocoon/ Portulaca Oleracea on the Glucose and Lipid Metabolism to type 2 Diabetic Rats

Objective To approach the effect of Silkworm Cocoon,Portulaca oleracea on the glucose and lipid metabolism to type 2 Diabetic rats. Methods type 2 diabetic rat models induced by STZ were randomly divided into diabetes model group,Silkworm Cocoon group,Portulaca oleracea group,Silkworm Cocoon+Portulaca oleracea group,and normal contrast group,after eight weeks' intervention,We analyze blood glucose(GLU), triglyeeride(TG), SOD, GSH, MDA, calculate, the indexes of insulin resistance (HOMA-1R). Results compared with diabetes model group, the GLU in Silkworm Cocoon+Portulaca oleracea group decrease 53.3%(P<0.01) : The TG decrease 44.1%(P<0.05). the Homa-IR decrease groups has no statistic difference. Conclusion The mixture group can obviously improve the glucose and lipid metabolism、 relieve insulin resistance、 significantly increase antioxidatian、 decrease the products oflipid peroxide.