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Acetaldehyde via CGRP receptor and TRPA1 in Schwann cells mediates ethanol-evoked periorbital mechanical allodynia in mice: relevance for migraine.

Lorenzo LandiniDaniel Souza Monteiro de AraujoMartina ChiecaGaetano De SienaElisa BellantoniPierangelo GeppettiRomina NassiniFrancesco De Logu
Published in: Journal of biomedical science (2023)
Results suggest that, in mice, periorbital mechanical allodynia, a response that mimics cutaneous allodynia reported during migraine attacks, is elicited by ethanol via the systemic production of acetaldehyde that, by releasing CGRP, engages the CGRP receptor in Schwann cells. The ensuing cascade of intracellular events results in a Schwann cell TRPA1-dependent oxidative stress generation that eventually targets neuronal TRPA1 to signal allodynia from the periorbital area.
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