去窦弓神经对自发性高血压大鼠主动脉TRPC3及TRPC6表达的影响

被引：3

作者：

何杰

陈明

机构：

[1] 重庆医科大学附属第一医院心血管内科

来源：

重庆医科大学学报 | 2012年 / 37卷 / 12期

关键词：

去窦弓神经; 瞬时受体电位通道C3、C6; 血压变异;

D O I：

暂无

中图分类号：

R544.1 [高血压];

学科分类号：

摘要：

目的:研究去窦弓神经(Sinoaortic denervated,SAD)对自发性高血压大鼠(Spontaneous hypertensive rat,SHR)主动脉瞬时受体电位通道C3(Transient receptor potential canonical 3,TRPC3)及TRPC6亚型表达的影响,探讨TRPC3及TRPC6与血压变异(Blood pressure variability,BPV)的关系。方法:14只10周龄雄性SHR随机分为SAD组和假手术组,各7只。术后8周在清醒、自由活动状态下测定两组大鼠24 h动脉血压及BPV,采用逆转录多聚酶链反应(Reverse transcription polymerase chain reaction,RT-PCR)法检测主动脉组织TRPC3及TRPC6信使核糖核苷酸(Messenger ribonucleic acid,mRNA)的表达,蛋白免疫印迹法(Western blot)与免疫组织化学法(Immunohistochemistry,IHC)检测其蛋白的表达。结果:术后8周,两组大鼠24 h平均收缩压(Systolic blood pressure,SBP)和舒张压(Diastolic blood pressure,DBP)比较无显著性差异;SAD组24 h收缩压变异(Systolic blood pressure variability,SBPV)显著高于假手术组大鼠(P<0.05),SAD组24 h舒张压变异(Diastolic blood pressure variability,DBPV)亦显著高于假手术组大鼠(P<0.01),主动脉组织TRPC3及TRPC6的mRNA和蛋白表达均显著高于假手术组大鼠(P<0.01),差异均有统计学意义。结论:SAD组大鼠SBPV和DBPV升高,同时TRPC3及TRPC6的mRNA和蛋白表达升高,提示TRPC3及TRPC6的升高与其BPV升高密切相关,TRPC3及TRPC6可能参与BPV的调控。

引用

页码：1037 / 1040

页数：4

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