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肾缺血大鼠心肌血管活性物质的变化 被引量:1

Changes of Vasoactive Substances in Myocardium of Chronic Renal Ischemia Rats
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摘要 目的研究肾缺血时心肌组织内皮素-1(ET-1)、降钙素基因相关肽(CGRP)和一氧化氮(NO)含量与心功能变化的关系。方法将Wistar大鼠随机分为狭窄组(n=30)和假手术组(n=10),其中狭窄组在左右肾动脉之间结扎腹主动脉(狭窄程度50%)。于术后16周测定大鼠血液动力学指标,分析心肌组织中ET-1、CGRP和NO含量变化以及与心功能的关系。结果大鼠左右肾动脉之间结扎腹主动脉使狭窄组单侧肾脏萎缩、血压持续升高,左室收缩及舒张功能下降、左室重量指数增加。术后16周时,与假手术组相比,狭窄组心肌组织血管活性物质ET-1含量显著增高(P<0.01),CGRP含量显著下降(P<0.01),NO含量差异无显著性(P>0.05);心肌组织ET-1含量与左心室内压最大上升速率呈负相关(r=-0.37,P<0.05)。结论大鼠腹主动脉狭窄导致的慢性肾缺血可使心肌组织ET-1含量增高、CGRP含量下降,其中ET-1含量与大鼠左室收缩功能呈负相关。 Objective To investigate the relationship between the vasoactive substances including endothelin-1 (ET-1),calcitonin gene-related peptide (CGRP),and nitric oxide (NO) in myocardium and the cardiac functions in chronic renal ischemia rats.Methods Male Wistar rats weighting 180-200g were randomly divided into 2 groups:operation group (n=30) and sham operation group (n=10).A ligation of abdominal aorta between right and left renal artery was made by silk suture in operation group and the necrosis degree of aor...
出处 《中国医学科学院学报》 CAS CSCD 北大核心 2010年第2期195-199,共5页 Acta Academiae Medicinae Sinicae
关键词 肾缺血 内皮素-1 降钙素基因相关肽 一氧化氮 renal ischemia endothelin-1 calcitonin gene-related peptide nitric oxide
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