仙鹤草降糖作用及对大鼠抗氧化能力影响

目的 观察仙鹤草降糖作用,并从氧化性损伤角度初步探讨其作用机制.方法 雄性SD大鼠腹腔注射链脲佐菌素建立糖尿病大鼠模型.将造模成功大鼠随机分为糖尿病模型组,仙鹤草低、高剂量组(60、120 g/kg,每天经口灌胃)及对照组.观察大鼠体重、血糖及血清胰岛素水平变化,检测血清超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)活性和丙二醛(MDA)含量；做胰腺病理组织学检查.结果 模型组大鼠血清胰岛素和血糖水平分别为(7.53±2.15) μIU/mL、( 17.55±6.08) mmol/L,血清GSH-Px活性和MDA含量分别为(1110.75±268.16)μmol/mL、(6.10 +0.88) nmoL/mL；低、高剂量仙鹤草组胰岛素和GSH-Px活性分别为(16.79±6.81)、(18.29±7.15)μIU/mL和(1264.50±273.20)、(1824.38±240.59) μmol/mL,明显高于模型组(P＜0.01),血糖水平和MDA含量分别为(4.71±2.19)、(3.92±1.17) mmol/L和(4.99±0.90)、(4.92±0.50) nmol/mL,明显低于模型组(P＜0.01).结论 仙鹤草可通过增加GSH-Px活性和降低MDA含量发挥抗糖尿病作用.

Hypoglycemic effects and antioxidative ability of agrimony in diabetic rats

Objective To study the hypoglycemic effects of agrimony and to explore its mechanism.Methods The streptozotocin(STZ)-induced diabetic rats were randomly divided into diabetic model group,low dose agrimony group(60 g/kg),high dose agrimony group(120 g/kg),and a control group was set additionally.After 4 weeks of treatment,the effects of agrimony on weight,blood glucose and insulin levels of diabetic rats were observed and the activities of superoxide dismutase(SOD),glutathione peroxidase(GSH-Px),and the cont...