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Neurosci Lett. 1995 Jan 30;184(3):189-92.

Electrical stimulation of the Gasserian ganglion induces structural alterations of calcitonin gene-related peptide-immunoreactive perivascular sensory nerve terminals in the rat cerebral dura mater: a possible model of migraine headache.

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  • 1Department of Clinical Neurology, Albert Szent-Gyorgyi Medical University, Szeged, Hungary.


Calcitonin gene-related peptide (CGRP)-positive sensory nerve fibers in the rat supratentorial dura mater are equipped with varicosities and club-like nerve terminals, often attached to the walls of blood vessels. Brief electrical stimulation of the Gasserian ganglion results in significant swelling and increased immunohistochemical staining of ipsilateral perivascular club-like terminals, while long-lasting electrical stimulation induces their disintegration or bursting, resulting in irregular, corroded outlines of terminals and en passant beads. Stimulation-induced morphological alterations of perivascular terminals may represent a structural basis of increased CGRP content in jugular blood which follows electrical stimulation of the Gasserian ganglion and accompanies migraine attacks.

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