Hydrogen sulfide determines HNO-induced stimulation of trigeminal afferents

Wild V, Meßlinger K, Fischer M (2015)


Publication Type: Journal article

Publication year: 2015

Journal

Publisher: Elsevier

Book Volume: 602

Pages Range: 104-9

DOI: 10.1016/j.neulet.2015.06.056

Abstract

Endogenous NO and hydrogen sulfide form HNO, which causes CGRP release via TRPA1 channel activation in sensory nerves. In the present study, stimulation of intact trigeminal afferent neuron preparations with NO donors, Na2S or both was analyzed by measuring CGRP release as an index of mass activation. Combined stimulation was able to activate all parts of the trigeminal system and acted synergistic compared to stimulation with both substances alone. To investigate the contribution of both substances, we varied their ratio and tracked intracellular calcium in isolated neurons. Our results demonstrate that hydrogen sulfide is the rate-limiting factor for HNO formation. CGRP has a key role in migraine pathophysiology and HNO formation at all sites of the trigeminal system should be considered for this novel means of activation.

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How to cite

APA:

Wild, V., Meßlinger, K., & Fischer, M. (2015). Hydrogen sulfide determines HNO-induced stimulation of trigeminal afferents. Neuroscience Letters, 602, 104-9. https://doi.org/10.1016/j.neulet.2015.06.056

MLA:

Wild, Vanessa, Karl Meßlinger, and Michael Fischer. "Hydrogen sulfide determines HNO-induced stimulation of trigeminal afferents." Neuroscience Letters 602 (2015): 104-9.

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