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沙棘总黄酮对急性心衰犬心功能和血流动力学的影响
Effects of Total Flavones of Fructus Hippophae(TFH) on Cardiac Function and Hemodynamics of Anesthetized Open chest Dogs with Acute Heart Failure
【摘要】 以戊巴比妥钠造成麻醉开胸犬心衰模型,iv沙棘总黄酮(TFH)48,97mg/kg,均可使心衰犬CO,CI,+LVdP/dtmax和LVSP明显升高,TFH97mg/kg时RdP/dtmax明显缩短;-LVdP/dtmax明显增加,T值、LVEDP明显下降;TPVR和MVO2I明显降低,MAP和HR无明显影响。结果提示,ivTFH可明显增强心衰犬心脏泵功能和心肌收缩性能,并可明显改善心肌舒张性能,降低外周血管阻力和心肌耗氧量,说明TFH有抗心衰作用
【Abstract】 This study was carried out employing the model of dog with acute heart failure induced by phenobarbital natricum. It was shown that iv TFH 4.8 and 9.7mg/kg could significantly increase CO,CI,+LVdP/dtmax and LVSP;shorten R dP/dtmax in 9.7mg/kg;raise-LVdP/dtmax,reduce LVEDP and T value ;decrease MVO 2I and TPVR;MAP and HR were not changed significantly. The results suggest that iv TFH can strengthen cardiac pump function and myocardial contractility in canine with heart failure; significantly improve myocardial diastolic function and hemodynamic performance;markedly decrease myocardia used oxygen index and total peripheral vessel resistance, thus proving that TFH is good for heart failure.
【Key words】 total flavones of Fructus Hippophae; heart failure; hemodynamics; cardiac function; dog;
- 【文献出处】 中国中药杂志 ,CHINA JOURNAL OF CHINESE MATERIA MEDICA , 编辑部邮箱 ,1997年07期
- 【分类号】R-332
- 【被引频次】42
- 【下载频次】154