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侧脑室内注射血管紧张素-(1-7)对大鼠心血管活动的调节作用

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摘要 目的探讨脑室内外源性血管紧张素-(1-7)〔angiotensin-(1-7),Ang-(1-7)〕对正常大鼠心血管活动的影响。方法雄性Wistar大鼠24只,随机分为Ang-(1-7)小剂量(2.5μg)组、中剂量(10μg)组、大剂量(26μg)组1d对照组(生理盐水),每组6只。观察注药前后大鼠血压和心率的变化。结果Ang-(1-7)注入Wistar大鼠侧脑室后引起血压升高和心率增快,与对照组比较差异显著(P<0.05,P<0.01)。Ang-(1-7)中剂量组变化最明显。结论在侧脑室可能存在Ang-(1-7)的特异性受体,并且提示Ang-(1-7)是调节血压和心率的一个重要中枢活性因子。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2010年第6期811-813,共3页 Chinese Journal of Gerontology
基金 吉林省卫生厅资助课题〔9731〕
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