›› 2008, Vol. 28 ›› Issue (3): 171-173.

• 论文 • 上一篇    下一篇

苜蓿提取物的降血脂功能实验

  

  1. 南方医科大学实验动物中心暨比较医学研究所,广州 510515
  • 收稿日期:2008-04-10 出版日期:2008-03-31 发布日期:2008-03-31

Effects of Alfalfa Extract on Experimental Hyperlipemia in Rats

  1. Labortory Animal Centre & Institute of Comparative Medicine,Southern Medical University, Guangzhou 510515, China
  • Received:2008-04-10 Online:2008-03-31 Published:2008-03-31

摘要: 目的 建立大鼠高脂血症模型并探讨苜蓿提取物对大鼠高脂血症的影响。方法 40只sD大鼠连续饲喂高脂饲料3周,测定血清总胆固醇(TC),甘油三酯(TG),高密度脂蛋白胆固醇(HDL-C)水平。根据TC水平将犬鼠随机分为高脂模型组和苜蓿提取物低,中、高三个剂量组,各组继续饲喂高脂饲料,各剂量组分别以0.60,1.20、3.60g/kg三个剂量灌服给予苜蓿提取物,另设空白对照组饲喂基础饲料。实验第35天,测定各组大鼠血清TC、TG、HDL-C水平,同时处死动物采集标本用于病理组织学观察。结果 大鼠用高脂饲料饲喂3周后,TC、TG、HDL-C水平均升高,给予苗蓿提取物后,TC、TG、HDL-C水平降低。组织病理学观察表明高脂模型组大鼠肝脏存在严重脂肪变性,各剂量组大鼠肝脏病变减轻。结论 苜蓿提取物对高脂血症大鼠具有降低TC、TG水平的作用,并可减轻高脂血症大鼠肝脏的病变程度。

关键词: 高脂血症, 苜蓿提取物

Abstract: Objective To establish hyperlipemia animal model and investigate the functional changes of alfalfa extract in hyperlipemia rats. Methods 40 male SD rats were randomly divided into 4 groups after fed with high-fat and high-cholesterol diet for 3 weeks, The model group(?=10), fed with high-fat and high-cholesterol diet: the low, middle and high intervention group was added with alfalfa extract at the dosage of 0.60,1.20 and 3.60 g/kg respectively. Besides other 10 male rats as negative control group fed with normal diet.All the rats were sacrificed after 35 days. The TC、TG、HDL-C levels and the pathological changes of the liver, heart, kidney, lung and artery were detected. Results TC、TG levels were rose after fed with high-fat and high-cholesterol diet and decreased after added with alfalfa extract. Pathological changes lessened in intervention group. Conclusion The alfalfa extract can reduce the TC、TG、HDL-C levels and pathological changes of the liver in hyperlipemia model rat.

Key words: Hyperlipemia, Alfalfa extract