Morphological characteristics of C1 and C2 adrenergic neurone groups in marmoset monkey brainstem by using antibody against phenylethanolamine-N-methyltransferase.
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.
Jeong
Y G
YG
Department of Anatomy, College of Medicine, Hallym University, Chunchon 200-702, Republic of Korea.
Lee
N S
NS
Chung
S H
SH
Lee
K Y
KY
Suh
J G
JG
Hyun
B H
BH
Kang
T C
TC
Oh
Y S
YS
Won
M H
MH
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*
D010625:Phenylethanolamine N-Methyltransferase