节点文献

补肾活血方防治冠心病药效实验及抗动脉粥样硬化机理研究

【作者】 蒲春霞

【导师】 刘继林;

【作者基本信息】 成都中医药大学 , 中药学, 2006, 博士

【摘要】 目的:补肾活血方防治冠心病药效实验及抗动脉粥样硬化机理研究 方法:设正常对照组、病理模型组、补肾活血方高、低剂量组、阳性药物对照组。分别给予生理盐水、补肾活血方和针对不同病理模型的阳性药物,给药后检测了血流动力学指标、脂代谢相关指标、血流变学指标、影响睡眠的指标及抗氧化功能和保护内皮功能相关指标,观察了动脉粥样硬化动脉壁的形态变化。 结果:补肾活血方有降低外周阻力、冠脉循环阻力、扩张冠脉和降低心肌耗氧量作用。可改善结扎冠动脉缺血狗的血流动力学参数,减小心肌梗塞范围。对大鼠垂体后叶素所致的急性心肌缺血有很好的保护作用。能降低正常、高脂血症大鼠血清胆固醇、甘油三酯;降低全血粘度、血浆粘度及红细胞聚集指数。对右旋糖苷所致血瘀大鼠的全血粘度、血浆粘度、红细胞聚集指数均有降低,具有活血化瘀的作用。对阈剂量的异戊巴比妥钠具有协同睡眠作用,明显延长小鼠睡眠时间,对阈下剂量所致的小鼠入睡数仅有增加趋势,具有安神作用。具有明显降低高脂血症和动脉粥样硬化大白兔的血清胆固醇、甘油三酯、低密度脂蛋白、极低密度脂蛋白、载脂蛋白受体Al、载脂蛋白受体B100;同时也降低全血表观粘度、血浆粘度、红细胞聚集指数。补肾活血方对已经形成的动脉粥样硬化瘢块有明显的治疗、逆转和改善作用。补肾活血方可以提高高脂血症大白兔LCAT活性,降低高脂血症大白兔ET含量,提高NO含量,升高血浆PGI2含量,降低血浆TXA2,改善两者比例,使血浆中两指标的含量趋于平衡。补肾活血方降低过氧化脂质LPO的含量、提高超氧化物歧化酶SOD、硒谷胱甘肽过氧化物酶(SeGSHPx)的活性,而具有良好的抗氧化作用。 结论:补肾活血方冠心病狗模型具有良好的改善作用,对动脉粥样动物模型具有明显的改善和治疗作用,能消除动脉粥样硬化斑块。补肾活血方主要是通过调节脂肪代谢、调节血液流变性、抗氧化作用和保护内皮细胞功能的多靶点,多作用途径来综合达到抗动脉粥样硬化及消退粥样硬化斑块的作用。

【Abstract】 Objective: To study the pharmacology of BuShenHuoXue priscription in animal model of CHD and the mechanism of action on AS.Methods: In this experiment,the animals were divided into five groups of blank contrast,pathological models,high dosage,low dosage and medication contrast.After given drugs,examing hemodynamic response, lipid metabolism ,the change of blood flow,the change of sleeping, the action of antioxidizing and protecting the endothelial cell,. observing the wall of change of AS blood vessel.Results: BuShenHuoXue could make resistance of blood vessel,broad the coronaryartery,decrease oxygen consumption of myocarditis.improved the numbers of hemodynamics,reduced the range of cardiac infarction.The protection of heart deletion blood was owned. TG,T-CHO,RBC,LDL-C,CHO,VLDL,Apo,ET,LPOetr lower; the elevation of HDL,NO,SOD,SeGSHPx,LCAT etr.Increasing the period of sleeping on mice.Cellular degeneration and pathological damage was decreased.Increased PGI2 in blood and decreased TXA2 in blood.balancing the standard of the twe. Through increased SOD,SeGSHPx,it had an antioxidizing action.Conclusion: The protective action of BuShenHuoXue on the modle dogs of CHD, On the model of rabbits of AS.Its working mechanism is the result of muti-action on adjusting lipid metalism,blood flow,antioxidizing and protectiong the endothelial cell.

【关键词】 动脉粥样硬化补肾活血方药效
【Key words】 atheroscleroticBuShenHuoXuepharmacology
节点文献中: