Journal
CURRENT OPINION IN NEUROLOGY
Volume 23, Issue 3, Pages 259-265Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/WCO.0b013e328337b884
Keywords
human models of migraine; migraine treatment; signaling molecules
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Funding
- Lundbeck Foundation, Lundbeck Foundation Center for Neurovascular Signalling (LUCENS)
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Purpose of review This review presents what we have learnt from triggering migraine. Recent findings Experimental studies have shown that glyceryl trinitrate (GTN), calcitonin gene-related peptide (CGRP), pituitary adenylate cyclase activating polypeptide-38 (PACAP38) and prostaglandin I-2 (PGI(2)) induce migraine-like attacks in migraine suffers indistinguishable from their spontaneous attacks. These studies point to two key pathways to play an important role in migraine pathophysiology: cyclic guanosine monophosphate (cGMP) and cyclic adenosine monophosphate (cAMP). At present, no valid experimental model exists to reproduce aura episodes in migraine with aura patients. Familiar hemiplegic migraine patients seem to be less sensitive to GTN and CGRP provocation compared with common types of migraine. Advances in recent imaging studies suggest neuronal mechanisms to be behind migraine attacks. The experimental headache models have resulted in development and an ongoing search of new migraine targets. Summary Human models of migraine offer unique possibilities to study mechanisms responsible for different migraine subtypes and to explore the mechanisms of action of existing and future antimigraine drugs. Adding advanced imaging techniques to the models may lead to a better understanding of the complex events that constitutes a migraine attack and thereby more targeted ways of intervention.
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