Negative inotropic effect of carbachol on rat atria mediated by nitric oxide.

Abstract

In this paper we show that isolated rat atria synthetized nitric oxide (NO) and its acts as intracellular messenger, increasing cGMP production that in turn modulates the muscarinic cholinergic dependent inhibition of contractility. Carbachol activating M2 muscarinic acetylcholine receptors (M2 mAchR) activated phosphoinositide turnover, stimulated nitric… (More)

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