摘要:
目的 探讨血脉灵组方对垂体后叶素致大鼠心肌缺血模型的保护作用.方法 将大鼠按随机数字表法分为7组,每组10只,分别为空白对照组、模型对照组、地奥心血康组、实验药物组(血脉灵制首乌大、小剂量组;血脉灵生首乌大、小剂量组),灌胃给药,每天1次,连续7d,其中空白或模型对照组均给予同等体积的纯化水.比较7组大鼠心电图,并检测血清乳酸脱氢酶(LDH)、肌酸激酶(CK)、超氧化物歧化酶(SOD)、丙二醛(MDA)活性.结果 血脉灵(制首乌)大剂量组能明显降低垂体后叶素引起的心肌缺血大鼠10,30,45 s、1 min ST段以及10,30,45 s T波升高,血脉灵(制首乌)小剂量组能降低10 s、1 min,ST段以及10 s T波升高;血脉灵(生首乌)大剂量组能明显降低10 s ST段以及10,45 s T波升高.血脉灵(制首乌)和血脉灵(生首乌)各剂量组均能降低大鼠血清LDH、CK和MDA活性,升高SOD活性(P<0.05或P<0.01).结论 血脉灵组方对垂体后叶素所致大鼠心肌缺血模型具一定的保护作用.%Objective To study the protective effect of Xuemailing on pituitrin-induced myocardial rats. Methods The rats were divided into 7 groups(by means of random number table), 10 rats in each group, namely blank control group, model control group,Di'aoxinxuekang group and experimental groups(Xuemailing prepared fleece flower root high and low dose groups;Xuemailing raw radix polygoni multiflori high and low dose groups), each group was ig administrated once every day for 7 days, Blank control and model control groups were given the same volume of purified water.Effects of 7 groups on T wave and S-T segment were observed,LDH,CK,SOD,MDA activities in serum of rats were determined. Results High dose Xuemailing (prepared fleece flower root) significantly decreased the elevation of 10,30,45 s,1 min ST segment and 10,30,45 s T wave in the myocardial ischemia rat model.Low dose Xuemailing (prepared fleece flower root) significantly decreased the elevation of 10 s,1 min ST segment and 10 s T wave of the rat model.High dose Xuemailing(raw radix polygoni multiflori) significantly decreased the elevation of 10 s ST segment and 10,45 s T wave in the rat model.Xuemailing (prepared fleece flower root) and Xuemailing (raw radix polygoni multiflori) significantly decreased LDH,CK,MDA enzyme activities,and increased SOD enzyme activities of the myocardial ischemia rat model. Conclusion Xuemailing can protect the myocardial ischemia rats induced by pituitrin.