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投稿时间:2015-12-01
投稿时间:2015-12-01
中文摘要: 探讨蓝莓花色苷对 2 型糖尿病小鼠体内抗氧化活性影响及肝脏的保护作用。采用高脂饮食联合小剂量四氧嘧 啶诱导的方法建立小鼠 2 型糖尿病模型。50 只小鼠分为正常对照组、模型组、阳性药(吡格列酮)组、蓝莓花色苷低剂量 (100 mg/kg·d)给药组和蓝莓花色苷高剂量(200 mg/kg·d)给药组。阳性药及蓝莓花色苷给药组,每天灌胃给药 1 次,连续 给药 30 d。末次给药 12 小时后,测定小鼠空腹血糖,血清中及肝脏中谷胱甘肽过氧化物酶(GSH-PX)、超氧化物歧化酶 (SOD)活性和丙二醛(MDA)含量,并观察小鼠肝脏组织形态学改变。 与对照相比,模型组小鼠空腹血糖维持较高水平 (P<0.01),小鼠血清及肝脏组织中 SOD、GSH-Px 活性明显下降(P<0.01),而 MDA 含量明显升高(P<0.01),小鼠肝细胞出 现变性、间质水肿及炎症细胞浸润病理变化。与模型组相比,阳性药和蓝莓花色苷给药组小鼠血糖明显降低(P<0.01), SOD 和 GSH-Px 活性升高(P<0.01),MDA 含量下降(P<0.01),肝脏病理变化有所改善。 蓝莓花色苷能够通过减轻实验性2 型糖尿病小鼠机体的氧化损伤,并对肝脏损伤具有一定的保护作用。
Abstract:To investigate the antioxidant activity and the protective effect on liver of blueberry anthocyanins in type 2 diabetes mice. Type 2 diabetes mice model was induced by high-fat diet and small dose of alloxan. Fifty mices were separated into five groups: normal control group, model control group, positive control group(allox an), low-dose blueberry anthocyanins group (100 mg/kg·d) and high-dose blueberry anthocyanins group (200 mg/kg·d). The positive control and blueberry anthocyanins group were administered once daily for 30 days. We detected the fasting blood sugar of mices, the level of glutathione peroxidase (GSH-PX), super- oxide dismutase(SOD) and malondialdehyde(MDA), the morphological changes of liver tissues after 12 hours behind the last time administration. Compared with the control group, the fasting blood sugar of mice maintained a higher level in model control group (P<0.01), the activity of SOD and GSH-PX in blood serum and liver tis- sues decreased significantly(P<0.01) while MDA content increased obviously(P<0.01). The liver cells in mice appeared pathological changes of denaturation, interstitial edema and inflammatory cell infiltration. Compared with the model control group, the blood sugar decreased obviously in positive control group(P<0.01) and blue- berry anthocyanins group, the activity of SOD and GSH-PX increased (P<0.01) while MDA content decreased
(P<0.01), the pathological changes of liver improved. Blueberry anthocyanins can relieve the oxidative damage of experimental type 2 diabetes mices, and had some protective effects on liver.
文章编号:201608002 中图分类号: 文献标志码:A
基金项目:国家自然科学基金资助项目(21102055)
Author Name | Affiliation |
LI Ya-wei, CHANG Sheng, WANG Li-ming, JIN Ying* | Department of Pharmaceutical Chemistry, Jilin Medical College, Jilin 132013, Jilin, China |
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