期刊
JOURNAL OF PHARMACOLOGICAL SCIENCES
卷 118, 期 4, 页码 537-542出版社
JAPANESE PHARMACOLOGICAL SOC
DOI: 10.1254/jphs.12012SC
关键词
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.
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