Inhibition by Adrenomedullin of the Adrenergic Neurogenic Response in Canine Mesenteric Arteries

[摘要] References(10)Cited-By(5)Adrenomedullin (AM)inhibited the pressor action caused by transmural electrical stimulation in perfused isolated canine mesenteric arteries. The inhibitory potency of AM was greater than that of calcitonin gene-related peptide (CGRP) or proadrenomedullin NH2-terminal 20 peptide (PAMP). [8-37]CGRP did not affect the inhibitory action of AM, but suppressed the CGRP-induced inhibition. It may be concluded that AM has an ability to inhibit adrenergic neuronal transmission without the mediation of CGRP1 receptors in the peripheral vasculature, and this inhibition partly participates in the potent hypotensive action of AM.

[学科分类] 药理学

[关键词] Adrenomedullin;Adrenergic neurotransmission;Depressor action