doi: 10.1016/0006-291x(90)92390-l.
Inhibition of periarterial nerve stimulation-induced vasodilation of the mesenteric arterial bed by CGRP (8-37) and CGRP receptor desensitization
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- PMID: 2159300
- DOI: 10.1016/0006-291x(90)92390-l
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Inhibition of periarterial nerve stimulation-induced vasodilation of the mesenteric arterial bed by CGRP (8-37) and CGRP receptor desensitization
Biochem Biophys Res Commun.
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Abstract
We provide the first functional evidence that calcitonin gene-related peptide (8-37) induces a direct vasoconstriction and reversibly antagonizes vasodilation of the mesenteric arterial bed induced by calcitonin gene-related peptide (CGRP) suggesting that CGRP (8-37) is a competitive antagonist of vascular CGRP receptors. Vasodilation induced by periarterial nerve stimulation was inhibited both by CGRP (8-37) and by desensitization of CGRP receptors. These results further support the evidence that the periarterial nerve stimulation-induced nonadrenergic noncholinergic vasodilation of the mesenteric vasculature is mediated by endogenous CGRP and its receptors.
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