【摘要】 目的观察心康注射液对实验性阿霉素致心肌炎模型大鼠心功能的影响并探讨其作用机制。方法Wistar大鼠腹腔注射阿霉素造心肌炎模型,用八道生理记录仪记录各组大鼠的左室压峰值(LVSP)、左室舒张末期压(LVEDP)、左室最大上升速率(+DP/DTmax)、左室最大下降速率(-DP/DTmax)、左室开始收缩至左室内压上升速率峰值时间(T值)和心率(HR)等心功能指标。结果与模型对照组比较,各给药组能显著增加LVSP、+DP/DTmax,同时降低-DP/DTmax;心康注射液高、中剂量(4.48,2.24mg/kg)组能明显降低LVEDP,高剂量组能明显降低心体比及LVM/BW。结论心康注射液能够增强心肌收缩力,改善心肌舒张功能,对阿霉素引起的心功能损伤有保护作用。更多还原

【Abstract】 Objective To study the effect of Xin Kang Injection on cardiac function of rats with adriamycin-induced myocarditis and to explore its pharmacological mechanism.Methods Seventy Wistar rats were randomly divided into seven groups:normal control group,model group,three-dosage Xin Kang Injection groups(high-,moderate-and low-dosage respectively),deslanoside group,and Huangqi group.The myocarditis rat model was established by intraperitoneal injection of adriamycin.Left ventricular end-diastolic pressure(LVEDP),left ventricular systolic pressure(LVSP),heart rate(HR),T value,and ± DP/DTmax were observed.Results LVSP,+ DP/DTmax in the treatment groups were higher and-DP/DTmax lower than those in the model group(P < 0.01).LVEDP in high-and moderate-dosage Xin Kang Injection groups were lower than that in the model group(P < 0.01).High-dosage Xin Kang Injection could obviously decrease the heart mass to body weight ratio and left ventricular mass to body weight ratio.Conclusion Xin Kang Injection can strengthen the myocardial contractive power,improve the myocardial diastolic function,and protect the cardiac function from injury induced by adriamycin.更多还原