DISTRIBUTION OF VIP-LIKE AND NPY-LIKE IMMUNOREACTIVITIES IN RAT MAIN OLFACTORY-BULB

被引:91
作者
GALL, C [1 ]
SEROOGY, KB [1 ]
BRECHA, N [1 ]
机构
[1] VET ADM WADSWORTH MED CTR, CTR ULCER RES & EDUC, LOS ANGELES, CA 90073 USA
关键词
D O I
10.1016/0006-8993(86)90436-1
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The distribution of vasoactive intestinal peptide (VIP)- and neuropeptide Y (NPY)-like immunoreactivities in the Sprague-Dawley rat main olfactory bulb was analyzed using the peroxidase-antiperoxidase light microscopic immunocytochemical technique. VIP-like immunoreactivity was most prominently localized within a large number of intermediate-sized neurons whose perikarya and extensively branched varicose processes remained confined to the external plexiform layer (EPL). A few small short-axon type neurons in the mitral cell layer and granule cell layer (GRL) and even fewer large neurons in the glomerular layer (GL)/EPL border region contained immunoreactivity for VIP as well. Neuropeptide Y-like immunoreactivity (NPY-I) was principally localized within sparsely distributed large multipolar neurons of the deep GRL and within axons distributed with diminishing density from deep to superficial GRL. In addition, dense NPY-I was localized within very few large superficial short-axon type neurons of the GL/EPL border region. The restricted laminar and cellular distribution of NPY-I and VIP-I suggests that both peptides may act to modulate granule cell activity, and therefore, indirectly, olfactory bulk output.
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收藏
页码:389 / 394
页数:6
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