机构地区:[1]北京中医药大学东方医院心内科,北京100078
出 处:《中华中医药杂志》2011年第5期1216-1221,共6页China Journal of Traditional Chinese Medicine and Pharmacy
基 金:国家自然科学基金资助项目(No.30772693;No.30701075)~~
摘 要:目的:观察益气药对慢性心力衰竭(CHF)心气虚证大鼠模型总肌酸激酶(CK)活性、CK同工酶及腺苷酸转位酶mRNA表达的影响。方法:结扎大鼠左冠状动脉前降支复制心梗后心衰大鼠模型。按照干预手段分为假手术组(J)、模型组(M)、西药组(卡托普利)(X)、党参组(D)、黄芪组(H)、党参+黄芪组(Y)、联合用药组(党参+黄芪+卡托普利)(L)共7组,连续灌胃9周,酶偶联法检测大鼠血清总CK活性的变化,RT-PCR法检测大鼠心肌CK同工酶和ANT异构体mRNA表达的变化。结果:①CHF模型组大鼠血清总CK活性较假手术组明显降低,各用药组总CK活性均较模型组升高。②模型组CK-B亚基mRNA表达较假手术组明显升高,各用药组的表达均较模型组有显著回落;模型组CK-M亚基mRNA表达较假手术组显著降低,各用药组的表达与模型组相比有明显回升;模型组mi-CK的mRNA表达与假手术组相比无明显差异,西药组表达较假手术及模型组均明显降低,党参组及党参+黄芪组较模型组明显升高。③模型组ANT1、ANT2 mRNA表达较假手术组明显降低,各用药组较模型组均有显著回升。结论:慢性心力衰竭模型大鼠总CK活性、CK同工酶和ANT的mRNA表达水平降低,说明能量代谢尤其是能量物质转运出现异常,在益气药的作用下这些变化有所改善;益气药提高心功能的机制,可能是通过稳定能量物质转运酶系,从而改善心肌舒缩功能。Objective:To study the effects of herbs of invigorating qi on CK activity the level of CK isoenzyme and ANT mRNA gene expressions of chronic heart failure(CHF) rats.Methods:Rat models of heart failure were made by ligaturing coronary artery.Divide the rats into 7 groups,which were sham-operation group,CHF model group,Captopril group,Codonopsis group,Astragalus group,Codonopsis Astragalus group,combination group.Taking the drugs by oral gavage for 9 weeks.Study the effects of herbs of invigorating qi on CK activity the level of CK isoenzyme and ANT mRNA gene expressions by the way of Western blots.Results:①On the 9th week,the CK activity of CHF model group was much lower than that of the sham-operation group(P0.01),the treatment groups could prevent it from being reduced,of which Codonopsis group,Astragalus group,combination group were significant when being compared with the model group(P0.05,P0.01).② The level of CK-B mRNA gene expressions of model group were higher than that of the sham-operation group(P0.01).The Codonopsis group,Astragalus group,Codonopsis Astragalus group,combination group could reduce it down obviously(P0.05,P0.01).The levels of CK-M mRNA gene expressions of CHF model group were much lower than the sham-operation group(P0.01).The Codonopsis group,Astragalus group,Codonopsis Astragalus group,combination group could rise it up obviously(P0.05,P0.01).The levels of mi-CK mRNA gene expressions of CHF model group were no different from the sham-operation group.Captopril group was lower than the sham-operation group CHF model group(P0.05,P0.01),Codonopsis group Combination group was lower than the CHF model group(P0.05).③ANT 1 2 mRNA gene expression of CHF model group were lower than the sham-operation group(P0.05),all the treatment groups could rise it up,Codonopsis group,Astragalus group,Codonopsis Astragalus group,combination group could raise the level of ANT mRNA gene expression significantly(P0.01) compare with the model group(P0.05,P0
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