title: Morphological characteristics of C1 and C2 adrenergic neurone groups in marmoset monkey brainstem by using antibody against phenylethanolamine-N-methyltransferase.
abstract: This work describes a mapping study of phenylethanolamine-N-methyltransferase (PNMT) immunoreactive neurones and fibres in the medulla oblongata of the marmoset monkey, Callithrix jacchus. Two groups of PNMT-immunoreactive neurones were found in the marmoset monkey medulla oblongata: a ventrolateral (C1 group) and a dorsomedial PNMT-immunoreactive cells group (C2 group). The PNMT-immunoreactive cells in the ventrolateral group C1 were found to be located around the lateral reticular nucleus. The PNMT-immunoreactive somata within the ventrolateral medulla are round to oval, and mostly multipolar with branched processes. In the dorsomedial group C2, PNMT-immunoreactive cell bodies appeared near the obex. The majority of the dorsomedial PNMT-immunoreactive neurones were observed in the nucleus tractus solitarius; although some were present in the dorsal motor nucleus of the vagus. The PNMT-immunoreactive somata in the dorsomedial medulla were small and round or ovoid. These results provide information upon the adrenergic system in the medulla oblongata of a species that presents a useful model of a small primate brain, the marmoset monkey.
authors.affiliation: Department of Anatomy, College of Medicine, Hallym University, Chunchon 200-702, Republic of Korea.
authors.forename: Y G
authors.initials: YG
authors.lastname: Jeong
authors.forename: N S
authors.initials: NS
authors.lastname: Lee
authors.forename: S H
authors.initials: SH
authors.lastname: Chung
authors.forename: K Y
authors.initials: KY
authors.lastname: Lee
authors.forename: J G
authors.initials: JG
authors.lastname: Suh
authors.forename: B H
authors.initials: BH
authors.lastname: Hyun
authors.forename: T C
authors.initials: TC
authors.lastname: Kang
authors.forename: Y S
authors.initials: YS
authors.lastname: Oh
authors.forename: M H
authors.initials: MH
authors.lastname: Won
mesh_terms: D000320:Adrenergic Fibers / Q000201:enzymology; D000818:Animals; D002144:Callithrix / Q000033:anatomy & histology*; D008297:Male; D008526:Medulla Oblongata / Q000033:anatomy & histology* / Q000201:enzymology; D010625:Phenylethanolamine N-Methyltransferase / Q000276:immunology*
chemical_list: D010625:Phenylethanolamine N-Methyltransferase