Affiliation:
1. Department of Human and Animal Physiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia
Abstract
Nitric oxide is one of the endogenous molecules that play a key role in migraine. However, the interaction between NO and the main players in the nociceptive activity of the meningeal trigeminal afferents—TRPV1 and P2X3 receptors—remains unstudied. In the current project, the effects of acute and chronic NO administration on the activity of TRPV1 and P2X3 receptors in the peripheral afferents were studied using electrophysiological recording of action potentials of the trigeminal nerve in the rat hemiskull preparations. The data obtained indicate that exogenous and endogenous NO increased the activity of the trigeminal nerve independent on the inhibition of the TRPV1 and P2X3 receptors. The activity of the trigeminal nerve triggered by ATP changed neither in acute incubation in the NO donor—sodium nitroprusside (SNP) nor in the chronic nitroglycerine (NG)-induced migraine model. Moreover, the chronic NG administration did not increase in the number of degranulated mast cells in the rat meninges. At the same time, the capsaicin-induced activity of the trigeminal nerve was higher with chronic NO administration or after acute NO application, and these effects were prevented by N-ethylmaleimide. In conclusion, we suggested that NO positively modulates the activity of TRPV1 receptors by S-nitrosylation, which may contribute to the pro-nociceptive action of NO and underlie the sensitization of meningeal afferents in chronic migraine.
Funder
Russian Science Foundation
Subject
Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Computer Science Applications,Spectroscopy,Molecular Biology,General Medicine,Catalysis
Reference85 articles.
1. Hermann, A., Sitdikova, G.F., and Weiger, T.M. (2012). Gasotransmitters: Physiology and Pathophysiology, Springer.
2. Functions and Dysfunctions of Nitric Oxide in Brain;Biochim. Biophys. Acta-Mol. Basis Dis.,2019
3. Nitric Oxide and Endothelial Dysfunction;Cyr;Crit. Care Clin.,2020
4. Nitric Oxide Signaling in Health and Disease;Lundberg;Cell,2022
5. Nitric Oxide: What’s New to NO?;Ghimire;Am. J. Physiol.-Cell Physiol.,2017
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