Effect of Cholinergic and Adrenergic Receptor Blockade on Arrhythmogenic Activity of Endothelin-1 during Inhibition of Nitric Oxide Synthesis in Awake Mice

Author: Lobanov A. V.   Rzhevskii D. I.   Korshunov V. A.   Murashev A. N.  

Publisher: Springer Publishing Company

ISSN: 0007-4888

Source: Bulletin of Experimental Biology and Medicine, Vol.137, Iss.2, 2004-02, pp. : 111-113

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Abstract

We studied the effects of blockade of nicotinic receptors in sympathetic and parasympathetic ganglia (hexamethonium), muscarinic receptors (atropine), and β1-adrenoceptors (atenolol) on arrhythmogenic activity of endothelin-1 during inhibition of nitric oxide synthesis with Nω-nitro-L-arginine in NMRI mice. Atropine reduced, while hexamethonium completely abolished the arrhythmogenic effect of endothelin-1 during nitric oxide synthase inhibition. Atenolol potentiated arrhythmogenic activity of Nω-nitro-L-arginine, but endothelin-1 had no effect on the incidence of arrhythmias under these conditions.

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