脂清胶囊对家兔动脉粥样硬化形成的影响

目的探讨中药脂清胶囊对高脂血症家兔斑块形成的影响以及作用机制。方法将48只新西兰家兔随机分为正常组,高脂组,阳性对照组(血脂康组)及3个剂量的脂清胶囊组。在实验开始和给药2周后分别检测血清总胆固醇(TC)、甘油三酯、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C),给药4周后测肝脏脂质含量、血清一氧化氮(NO)、血栓素B2(TXB2)和内皮素1(ET-1)。第6周末处死动物,行主动脉病理形态学观察。结果脂清胶囊对动脉粥样硬化家兔模型血清TC及LDL-C以及肝脏中TC的升高有明显对抗作用,同时还能显著地抑制其主动脉粥样硬化斑块形成,另外还能使其血清NO显著升高,TXB2和ET-1显著降低。结论脂清胶囊具有明显的抗脂代谢紊乱和抗动脉粥样硬化作用。

Effect of Zhi Qing Capsule on the Atherosclerosis of Rabbits

Objective To observe the effect of Zhi Qing Capsule on the plaque formation of hyperlipemia rabbits and to discuss its mechanism.Methods Forty-eight New-Zealand rabbits were randomly divided into normal control group,hyperlipemia group,Xuezhikang control group and three Zhi Qing capsule groups.Before and after 2-week treatment,the serum levels of total cholesterol(TC),triglyceride(TG),low density lipoprotein cholesterol(LDL-C) and high density lipoprotein cholesterol(HDL-C) in the serum were determined.After 4-week treatment,TC and TG contents in the liver,and nitric oxide(NO),thromboxan B2(TXB2) and endothelin-1(ET-1) levels in the serum were measured.At the end of the sixth week,all rabbits were killed to observe aorta pathological changes.Results Zhi Qing Capsule can obviously counteract the increase of serum TC,LDL-C and liver TC in the hyperlipemia rabbits,restrain the formation of aorta atherosclerotic plaques,increase the level of NO and decrease the levels of TXB2 and ET-1.Conclusion Zhi Qing Capsule has an evident effect on resisting the lipid metabolism disturbance and atherosclerosis.