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观察了麝香保心丸对心肌组织内皮型一氧化氮合酶（ｅＮＯＳ）的表达及左室功能的影响。在大鼠心梗模型上治疗组给予麝香保心丸３３ｍｇ／ｄ ２或 ６周，用心导管测定心脏功能，免疫组织化学法测定心肌 ｅＮＯＳ水平，结果表明：麝香保心丸可同时增加心肌 ｅＮＯＳ的表达水平、改善心梗后左室收缩及舒张功能。
The effects of Shexiang Baoxin Pills on the expression of endothelial nitric oxide synthase (eNOS) and left ventricular function were observed. On the rat model of myocardial infarction, the treatment group was given Shexiang Baoxin Pill at 33mg/d for 2 or 6 weeks. Heart function was measured with a cardiac catheter. The myocardial eNOS level was measured by immunohistochemical method. The results showed that: Shexiang Baoxin Pill can increase myocardial eNOS at the same time. Expression levels, improved left ventricular systolic and diastolic function after MI.