title: Tyrosine hydroxylase-immunoreactive cells in the nodose ganglion for the canine larynx.
abstract: Several substances have been reported as candidates for the neurotransmitter in the laryngeal afferent system. In the present study we demonstrated that catecholamine is also a candidate neurotransmitter in the canine laryngeal afferent system using tyrosine hydroxylase (TH) immunochemistry in combination with retrograde labelling with cholera toxin B in subunit-conjugated gold (CTBG). A few cells in the nodose ganglion labelled by application of CTBG to the internal branch of the superior laryngeal nerve were also TH-immunoreactive. These cells were also labelled following application of CTBG to the nucleus of the solitary tract. These results indicate that some of the TH-IR cells in the nodose ganglion could be primary afferent neurones for the canine larynx.
authors.affiliation: Department of Otolaryngology, Kyoto Prefectural University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Uno
authors.forename: Y
authors.initials: Y
authors.lastname: Hisa
authors.forename: N
authors.initials: N
authors.lastname: Tadaki
authors.forename: H
authors.initials: H
authors.lastname: Okamura
authors.forename: Y
authors.initials: Y
authors.lastname: Ibata
mesh_terms: D000818:Animals; D002395:Catecholamines / Q000032:analysis*; D002772:Cholera Toxin; D004285:Dogs; D005260:Female; D007150:Immunohistochemistry; D007823:Laryngeal Nerves / Q000166:cytology / Q000201:enzymology*; D008297:Male; D018377:Neurotransmitter Agents / Q000032:analysis*; D009620:Nodose Ganglion / Q000166:cytology / Q000201:enzymology*; D014446:Tyrosine 3-Monooxygenase / Q000032:analysis*
chemical_list: D002395:Catecholamines; D018377:Neurotransmitter Agents; D002772:Cholera Toxin; D014446:Tyrosine 3-Monooxygenase