Vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase-activating polypeptide (PACAP) in the circulation after sumatriptan

Jakob Møller Hansen, Jan Fahrenkrug, Jesper Troensegaard Petersen, Troels Wienecke, Karsten Skovgaard Olsen, Messoud Ashina

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Abstract

The origin of migraine pain is still elusive, but increasingly researchers focus on the neuropeptides in the perivascular space of cranial vessels as important mediators of nociceptive input during migraine attacks. The parasympathetic neurotransmitters, pituitary adenylate cyclase activating peptide-38 (PACAP38) and vasoactive intestinal peptide (VIP) may be released from parasympathetic fibres and activate sensory nerve fibres during migraine attacks. Triptans are effective and well tolerated in acute migraine management but the exact mechanism of action is still debated. Triptans might reduce circulating neuropeptides. To examine this question, we examined the effect of sumatriptan on VIP and PACAP levels in vivo, under conditions without trigeminovascular system activation.
OriginalsprogEngelsk
TidsskriftScandinavian Journal of Pain
Vol/bind4
Udgave nummer4
Sider (fra-til)211
Antal sider216
ISSN1877-8860
StatusUdgivet - 2013

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