Distribution and characteristics of cholecystokinin-like immunoreactivity in the olfactory bulb of the cat.
The distribution and characteristics of cholecystokinin (CCK)-like immunoreactive (LIR) nerve fibers was examined in the cat olfactory bulb using immunohistochemistry. CCK-LIR cell bodies were not found; fine varicose CCK-LIR fibers were observed in the most layers. In the main olfactory bulb, no staining was seen in the olfactory nerve layer and white matter. The directions of CCK-LIR fibers in the glomerular, external plexiform and mitral cell layers were generally perpendicular to the bulbar surface; those in the deep granule cell layer were parallel; and those in the internal plexiform and superficial granule cell layers were mixed. In the accessory olfactory bulb, CCK-LIR fibers were localized only in the granule cell layer. The presence of CCK-LIR fibers of the cat olfactory bulb may be involved in the modulation of olfactory transmission.
Won
M H
MH
Department of Anatomy, College of Medicine, Hallym University, Chunchon, South Korea. mhwon@sun.hallm.ac.kr
Wie
M B
MB
Lee
J C
JC
Jo
S M
SM
Ko
B M
BM
Oh
Y S
YS
D000818:Animals; D002415:Cats; D002766:Cholecystokinin / Q000276:immunology*; D009412:Nerve Fibers / Q000276:immunology; D009830:Olfactory Bulb / Q000033:anatomy & histology*
D002766:Cholecystokinin