Abstract
To investigate the effect of Shuangshen Ningxin (SSNX) formula on energy metabolism of myocardial ischemia/reperfusion rats. The myocardial ischemia/reperfusion model of Wistar rats was established through the ligation of left anterior descending branch of coronary artery of for 40 min and the reperfusion for 2 h. The Wistar rats were randomly divided into six groups: the sham operation group, the model group, the Trimetazidine group (10 mg x kg(-1)) and SSNX groups (22.5, 45, 90 mg x kg(-1)). Preventive administration was conducted for 5 d. The operation was performed at 1 h on the day of the last administration. CK-MB assay kit was adopted to detect the activity of serum CK-MB. HPLC was used to determine ATP, ADP and AMP contents in myocardial tissues and calculate TAN and EC. The preventive administration with SSNX could reduce the activity of serum CK-MB and increase ATP content and EC level in myocardial tissues (P < 0.01 or P < 0.05 vs. the model group). SSNX formula can maintain energy charge in cardiomyocytes and relieve ischemia/reperfusion injury by preserving ischemic myocardium ATP.
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