Adrenergic Stimulation-Released Histamine Taken-up in Adrenergic Nerves Induces Endothelium-Dependent Vasodilation in Rat Mesenteric Resistance Arteries

作者：Haruki Yuto; Takatori Shingo^*; Hattori Sayo; Zamami Yoshito; Koyama Toshihiro; Tangsucharit Panot; Kawasaki Hiromu

来源：Journal of Pharmacological Sciences, 2012, 118(4): 537-542.

DOI：10.1254/jphs.12012SC

• histamine
• perivascular adrenergic nerve
• rat mesenteric artery

The present study investigated whether histamine was taken up by perivascular adrenergic nerves and released by periarterial nerve stimulation (PNS) to induce vascular responses. In rat mesenteric vascular beds treated with capsaicin to eliminate calcitonin gene related peptide (CGRP)ergic vasodilation and with active tone, PNS (1 - 4 Hz) induced only adrenergic nerve-mediated vasoconstriction. Histamine treatment for 20 min induced PNS-induced vasoconstriction followed by vasodilation without affecting CGRP-induced vasodilation. Chlorpheniramine, guanethidine, combination of histamine and desipramine, and endothelium-removal abolished PNS-induced vasodilation in histamine-treated preparations. These results suggest that histamine taken up by and released from adrenergic nerves by PNS causes endothelium-dependent vasodilation in rat mesenteric arteries.

• 出版日期2012-4