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Chan KY, Baun M, Vries RD, van den Bogaerdt AJ, Dirven CMF, Danser AHJ, Jansen-Olesen I, Olesen J, Villalón CM, MaassenVanDenBrink A, Gupta S. Pharmacological characterization of VIP and PACAP receptors in the human meningeal and coronary artery. Cephalalgia 2010; 31:181-9. [DOI: 10.1177/0333102410375624] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: We pharmacologically characterized pituitary adenylate cyclase–activating polypeptides (PACAPs), vasoactive intestinal peptide (VIP) and the VPAC1, VPAC2 and PAC1 receptors in human meningeal (for their role in migraine) and coronary (for potential side effects) arteries. Methods: Concentration response curves to PACAP38, PACAP27, VIP and the VPAC1 receptor agonist ([Lys15,Arg16,Leu27]-VIP[1-7]-GRF[8-27]) were constructed in the absence or presence of the PAC1 receptor antagonist PACAP6-38 or the VPAC1 receptor antagonist, PG97269. mRNA expression was measured using qPCR. Results: PACAP38 was less potent than VIP in both arteries. Both peptides had lower potency and efficacy in meningeal than in coronary arteries, while mRNA expression of VPAC1 receptor was more pronounced in meningeal arteries. PACAP6-38 reduced the Emax of PACAP27, while PG97269 right-shifted the VIP-induced relaxation curve only in the coronary arteries. Conclusion: The direct vasodilatory effect of VIP and PACAP might be less relevant than the central effect of this compound in migraine pathogenesis.
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152
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Using Telcagepant for the Acute Treatment of Migraine. Curr Pain Headache Rep 2010; 14:175-8. [DOI: 10.1007/s11916-010-0113-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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153
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Hansen JM, Hauge AW, Olesen J, Ashina M. Calcitonin gene-related peptide triggers migraine-like attacks in patients with migraine with aura. Cephalalgia 2010; 30:1179-86. [PMID: 20855363 DOI: 10.1177/0333102410368444] [Citation(s) in RCA: 320] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Introduction: Calcitonin gene-related peptide (CGRP) is a key molecule in migraine pathogenesis. Intravenous CGRP infusion triggers delayed migraine-like attacks in patients with migraine without aura (MO). In contrast to patients with MO, in prior studies patients with familial hemiplegic migraine (FHM) did not report more migraine-like attacks compared to controls. Whether CGRP triggers migraine in patients with typical (non-hemiplegic) migraine with aura is (MA) unknown. In the present study we examined the migraine inducing effect of CGRP infusion in patients suffering from MA and healthy controls. Methods: Fourteen patients suffering exclusively from migraine with typical aura (MA) and 11 healthy volunteers received a continuous intravenous infusion of 1.5 µg/min CGRP over 20 minutes. Headache and other migraine symptoms were scored every 10 minutes for one hour and self recorded hourly thereafter and until 13 hours post-infusion. Results: CGRP infusion induced significantly more delayed headaches in MA patients (12 out of 14) than in controls (2 out of 11) ( p = 0.001). Furthermore, significantly more MA patients (57%; 8 out of 14) fulfilled criteria for an experimentally induced migraine attack after CGRP than controls (0%; 0 out of 11) ( P = 0.003). Four patients (28%) reported aura symptoms after CGRP infusion. Conclusion: CGRP triggered migraine-like attacks without aura in patients suffering exclusively from MA. It also triggered a typical aura in 28% of the patients. These data indicate similar neurobiological pathways responsible for triggering migraine headache in MA and MO patients, and suggest differences between MA/MO and FHM.
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Affiliation(s)
| | | | - Jes Olesen
- Glostrup Hospital and University of Copenhagen, Denmark
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