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Effects of ACE inhibition and angiotensinⅡtype 1 receptor blockade on cardiac function and G proteins in rats with chronic heart failure

机译:ACE抑制和血管紧张素Ⅱ1受体阻滞对慢性心力衰竭大鼠心功能和G蛋白的影响

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摘要

Inhibition of the renin-angiotensin system(RAS)improves symptoms and prognosis in heart failure. The experimental basis for these benefits remains nuclear. We examined the effects of inhibition of ACE or blockade of angiotensinⅡtype 1(AT1)receptor on the haemodynamics, cardiac G-proteins, and collagen synthesis of rats with coronary artery ligation(CAL), a model in which chronic heart failure(CHF)is induced. Rats were orally treated with the ACE inhibitor trandolapril(3 mg kg~-1 day~-1)or the AT1 Receptor blocker L-158809(1 mg kg~-1 day~-1)from the 2nd to 8th week after CAL.
机译:抑制肾素-血管紧张素系统(RAS)可改善心力衰竭的症状和预后。这些好处的实验基础仍然是核的。我们研究了抑制ACE或阻断血管紧张素Ⅱ1型(AT1)受体对冠状动脉结扎(CAL)大鼠的血流动力学,心脏G蛋白和胶原合成的影响,该模型是慢性心力衰竭(CHF)模型诱导的。在CAL后第2周至第8周对大鼠口服ACE抑制剂trandolapril(3 mg kg〜-1 day〜-1)或AT1受体阻滞剂L-158809(1 mg kg〜-1 day〜-1)口服。

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