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Abstract
Conclusion. Laryngeal epithelium contains TRPV1, 2, 3 and 4, which may act as laryngeal nociceptors perceiving luminal noxious stimuli, play an important role in thermal sensation, osmotic sensation, and are also related to pathological conditions, such as inflammatory response, genesis of cough, asthma. Objective. Expression of TRPV1, 2, 3 and 4 in the normal CBA/J mouse larynx was analysed. Materials and methods. CBA/J mice were used in this study. The localizations of TRPV1, 2, 3 and 4 in the laryngeal epithelium were investigated by immunohistochemistry. Results. Immunohistochemical study revealed the presence of TRPV1, 2, 3 and 4 in the laryngeal epithelial cells. TRPV1 and TRPV2 were often co-localized with substance P, while the co-localization of substance P and TRPV3 was rare and TRPV4 was not co-localized with substance P.