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左旋氨氯地平对自发性高血压大鼠左室肥厚及内皮素-1表达的影响 被引量:2

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摘要 目的观察左旋氨氯地平对自发性高血压大鼠(SHR)左室肥厚的影响,并探讨其对内皮素(ET-1)的作用。方法20只SHR随机分为左旋氨氯地平治疗组和高血压对照组,同周龄的WKY大鼠作为正常对照组。给药12周,测量左室肥厚指标的变化,采用心室导管法检测心功能的变化,放免法测定左心室心肌ET-1含量,实时定量PCR法测定左心室心肌中前内皮素原(preproET-1)mRNA的表达。结果与高血压对照组相比左旋氨氯地平干预能够改善SHR左室收缩和舒张功能参数(+dp/dtmax/LVSP、-dp/dtmax/LVSP)(P<0.05),降低左室质量指数(P<0.01);左旋氨氯地平干预能够降低SHR心肌ET-1含量(P<0.05),使心肌preproET-1mRNA的表达降低约20%(P<0.05)。结论左旋氨氯地平能够抑制SHR的左室肥厚,并改善左室收缩和舒张功能,其作用机制可能与调节心肌ET-1的水平有关。
出处 《中西医结合心脑血管病杂志》 2009年第4期430-433,共4页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
作者简介 王睿,现工作于山西医科大学第一医院(邮编:030001);
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