舒张性心力衰竭兔Ca2+调控蛋白mRNA和蛋白质的表达

被引:1
作者
钟明
张运
张薇
卞继峰
耿昭
赵静
机构
[1] 山东医科大学附院干部保健科,山东医科大学附院心内科,山东医科大学附院心内科,山东医科大学分子生物学实验室,山东医科大学分子生物学实验室,山东医科大学附院心内科山东济南,山东济南,山东济南,山东济南,山东济南,山东济南
关键词
心力衰竭; 钙调蛋白; 基因表达;
D O I
暂无
中图分类号
R541.6 [血液循环衰竭];
学科分类号
摘要
目的 :探讨心肌细胞内Ca2 +超负荷以及Ca2 +调控蛋白在舒张性心力衰竭 (DHF)发生中的作用。方法 :采用RT -PCR和Westernblot技术测定实验兔Ca2 +调控蛋白mRNA和蛋白质表达的变化。结果 :⑴DHF兔心肌细胞内Ca2 +含量显著高于假手术组 (P <0 0 1) ;⑵DHF兔SRCa2 +-ATPase活性明显低于假手术组 (P <0 0 1) ;⑶DHF兔SRCa2 +-ATPase和细胞膜L型Ca2 +通道的mRNA水平明显低于假手术组 (P <0 0 5 ) ,而磷酸受纳蛋白、兰尼碱受体和肌集钙蛋白的mRNA转录无明显差异 (P >0 0 5 ) ;⑷DHF兔SRCa2 +-ATPase的蛋白质表达明显低于假手术组 (P <0 0 5 ) ;磷酸受纳蛋白的相对含量与假手术组无明显差异 (P >0 0 5 )。结论 :SRCa2 +-ATPase的mRNA和蛋白质表达减低以及细胞膜L型Ca2 +通道mRNA转录减低是导致心肌细胞内Ca2 +超负荷及DHF发生的重要因素
引用
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页码:19 / 22
页数:4
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