{"title":"厄贝沙坦对血管紧张素ⅱ诱导大鼠心肌肥大及MHC基因表达的影响","authors":"陈爱兰, 陈敏生, 何兆初, 刘启才, 董颀","doi":"10.3760/CMA.J.ISSN.1008-634X.2006.06.007","DOIUrl":null,"url":null,"abstract":"目的 观察伊贝沙坦对血管紧张素Ⅱ(AngⅡ)所致心肌细胞中蛋白质合成速率及肌球蛋白重链(MHC)基因表达改变的影响.方法 以AngⅡ及伊贝沙坦分别或同时作用于培养的细胞.采用放射性同位素[3H]-leu掺入法检测培养心肌细胞蛋白质合成速率.应用荧光定量PCR方法检测心肌细胞心房利钠肽因子(ANF)以及α-MHC、β-MHC的表达.结果 AngⅡ处理使心肌细胞中[3H]-Leu掺人增加(P＜0.05),同时ANF mRNA的表达明显高于正常(P＜0.05);α-MHC mRNA的表达显著低于正常(P＜0.05),而β-MHC mRNA的表达显著高于正常(P＜0.05),α-MHC/β-MHC的比值下降(P＜0.05).当伊贝沙坦与AngⅡ共同作用于培养的心肌细胞时,与AngⅡ组比较,[3H]-Leu的掺入明显下降(P＜0.05),与正常组比无统计学意义(P＞0.05);同时ANF的表达下降,与正常组比无统计学意义(P＞0.05);心肌细胞中α-MHC的表达明显增高(P＜0.05),而β-MHCmRNA的表达显著降低(P＜0.05),α-MHC/β-MHC的比值上升(P＜0.05).结论 伊贝沙坦能抑制AngⅡ所致的心肌细胞肥大和细胞中α-MHC向β-MHC表达的转换。","PeriodicalId":189947,"journal":{"name":"Journal of Modern Clinical Medical Bioengineering","volume":"48 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of irbesartan on cardiac hypertrophy and MHC gene expression induced by angiotensin II inrat\",\"authors\":\"陈爱兰, 陈敏生, 何兆初, 刘启才, 董颀\",\"doi\":\"10.3760/CMA.J.ISSN.1008-634X.2006.06.007\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"目的 观察伊贝沙坦对血管紧张素Ⅱ(AngⅡ)所致心肌细胞中蛋白质合成速率及肌球蛋白重链(MHC)基因表达改变的影响.方法 以AngⅡ及伊贝沙坦分别或同时作用于培养的细胞.采用放射性同位素[3H]-leu掺入法检测培养心肌细胞蛋白质合成速率.应用荧光定量PCR方法检测心肌细胞心房利钠肽因子(ANF)以及α-MHC、β-MHC的表达.结果 AngⅡ处理使心肌细胞中[3H]-Leu掺人增加(P＜0.05),同时ANF mRNA的表达明显高于正常(P＜0.05);α-MHC mRNA的表达显著低于正常(P＜0.05),而β-MHC mRNA的表达显著高于正常(P＜0.05),α-MHC/β-MHC的比值下降(P＜0.05).当伊贝沙坦与AngⅡ共同作用于培养的心肌细胞时,与AngⅡ组比较,[3H]-Leu的掺入明显下降(P＜0.05),与正常组比无统计学意义(P＞0.05);同时ANF的表达下降,与正常组比无统计学意义(P＞0.05);心肌细胞中α-MHC的表达明显增高(P＜0.05),而β-MHCmRNA的表达显著降低(P＜0.05),α-MHC/β-MHC的比值上升(P＜0.05).结论 伊贝沙坦能抑制AngⅡ所致的心肌细胞肥大和细胞中α-MHC向β-MHC表达的转换。\",\"PeriodicalId\":189947,\"journal\":{\"name\":\"Journal of Modern Clinical Medical Bioengineering\",\"volume\":\"48 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-12-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Modern Clinical Medical Bioengineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3760/CMA.J.ISSN.1008-634X.2006.06.007\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Modern Clinical Medical Bioengineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3760/CMA.J.ISSN.1008-634X.2006.06.007","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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