摘要
[目的]探讨具益气温阳、活血化瘀利水功能的中成药保心康(由人参、黄芪、毛冬青、炙附子等组成)治疗充血性心力衰竭的药效学作用。[方法]通过缩窄兔的腹主动脉建立心功能不全的动物模型,比较不同组别动物的病理结果,并测定左室舒张末压力(ＬＶＥＤＰ)、心室等容期室内压力上升最大速率(±ｄｐ/ｄｔｍａｘ)等血流动力学指标,以及血中一氧化氮(ＮＯ)的水平,[结果]与模型组相比,高剂量保心康组能明显减轻心肌肥厚、肺水肿等病理表现,改善血流动力学指标,ＬＶＥＤＰ降低(Ｐ＜０．０５),±ｄｐ/ｄｔｍａｘ升高(Ｐ＜０．０５)。降低血液中的ＮＯ含量(Ｐ＜０．０１)。[结论]保心康能改善心功能不全动物的血流动力学状况,延缓心衰的进程,改善心功能,且疗效呈明显的量效关系;其强心作用与降低ＮＯ水平有关。
[Objective] To study the pharrnacodynamic effect of Bao Xin Kang on animal models with cardiac insufficiency (CI) . [Methods] CI animal models were established by constricting the abdominal aortae in rabbits. The pathological results in different groups were compared. The hemodynamics indices such as LVEDP and±dp/dtmax and NO level were measured. [Results] Compared with the model group, the high dose of Bao Xin Kang can lessen the hyperplasia and hypertrophy of the myocardium and relieve the pulmonary edema in animals and improve the hemodynamics indices. LVEDP was decreased ( P < 0.05), the ±dp/dtmax increased ( P < 0.05) and the NO level in the plasma decreased (P<0.01). [Conclusion] Bao Xin Kang can improve the hemorheologic status, postpone the development of heart failure and improve the cardiac function in a dose - effect manner, and its cardiotonic effect is related to the decrease of NO level.
出处
《广州中医药大学学报》
CAS
2002年第1期36-39,42,共5页
Journal of Guangzhou University of Traditional Chinese Medicine
基金
广东省中医药管理局课题(编号:95014)
关键词
保心康
心功能不全
家兔
药效学
充血性心力衰竭
疾病模型
HEART FAILURE,CONGESTTVE/TCD therapy
BAO XIN KANG/pharmacology
BLOOD RHEOLOGY
NITRIC OXIDE
DISEASE MODEL, ANIMAL
RABBITS
