目的:观察不同组的心电图及心肌酶谱,比较哪种穴位配伍对抗心肌缺血的作用更明显。方法:将经心电图筛查无异常的SPF级雄性Wistar大鼠随机分为4组,每组各10只:正常组(A)、模型组(B)、标本配穴防治组(C)、远近配穴对照组(D)。采用连续7 d盐酸异丙肾上腺素(ISO)皮下注射的方法造模。标本配穴防治组和远近配穴对照组,在造模前分别予以双内关、双足三里、关元穴,和双内关、膻中穴电针治疗10 min,1次/d,治疗持续21 d。实验结束后检测各组心电图和心肌酶谱(CK、CK-MB、AST、LDH)。结果:①模型组心电图S-T段显著提高;标本配穴防治组心电图S-T段提高幅度明显下降,明显低于模型组和远近配穴对照组(P〈0.05)。②标本配穴组的心肌酶CK、CK-MB、AST、LDH的活性显著降低,明显低于对照组和模型组(P〈0.05)。结论:标本配穴电针预处理明显抑制心肌缺血所致的ST段上抬和心肌酶活性的升高,优于常规配穴,能有效对抗心肌缺血。
Objective: To observe ECG and myocardial in different groups,and compare which combined acupoints are better to against myocardial ischemia. Methods: 40 SPF Wistar rats without heart disease were randomized into four groups,each group with10 rats: normal group( A),model group( B),Biao and Ben pretreatment group( C),far and near control group( D). The rat model of myocardial ischemia was established by injecting ISO for 7 days. Before making the model,A and B was applied respectively to double"Zusanli"( ST36),"Neiguan"( PC6),"Guanyuan"( RN4) acupoints,and double"Neiguan"( PC6),"Danzhong"( RN17)acupoints,both with electric acupuncture for 10 min,once a day. At the end of the experiment,test ECG and myocardial enzyme( CK,CK-MB,AST,LDH). Results: ①ECG: S-T level of B was raised; S-T level of C was lower than that of B and D( P〈0. 05). ②Myocardial enzyme: CK,CK-MB,AST and LDH of C all were lower than that of B and D( P〈0. 05). Conclusion: The pretreatment with electric acupuncture of combined Biao and Ben acupoints could obviously reduce the S-T level and the activity of myocardial enzyme from myocardial ischemia,which is better than common combined acupoints and could protect myocardial cells from ischemia injury.