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DC Field Value Language Park, Sook Kyung ko Kim, Jong Ho ko Yang, Eun Sun ko Ahn, Dong Kuk ko Moon, Cheil ko Bae, Yong Chul ko 2017-07-05T08:52:31Z - 2017-04-10 - 2014-09 -
dc.identifier.citation Brain Structure and Function, v.219, no.5, pp.1603 - 1613 -
dc.identifier.issn 1863-2653 -
dc.identifier.uri -
dc.description.abstract Neurons in the main olfactory bulb relay peripheral odorant signals to the anterior piriform cortex (aPir), whereas neurons of the accessory olfactory bulb relay pheromone signals to the medial amygdala (MeA), suggesting that they belong to two functionally distinct systems. To help understand how odorant and pheromone signals are further processed in the brain, we investigated the synaptic connectivity of identified axon terminals of these neurons in layer Ia of the aPir and posterodorsal part of the MeA, using anterograde tracing with horseradish peroxidase, quantitative ultrastructural analysis of serial thin sections, and immunogold staining. All identified boutons contained round vesicles and some also contained many large dense core vesicles. The number of postsynaptic dendrites per labeled bouton was significantly higher in the aPir than in the MeA, suggesting higher synaptic divergence at a single bouton level. While a large fraction of identified boutons (29 %) in the aPir contacted 2-4 postsynaptic dendrites, only 7 % of the identified boutons in the MeA contacted multiple postsynaptic dendrites. In addition, the majority of the identified boutons in the aPir (95 %) contacted dendritic spines, whereas most identified boutons in the MeA (64 %) contacted dendritic shafts. Identified boutons and many of the postsynaptic dendrites showed glutamate immunoreactivity. These findings suggest that odorant and pheromone signals are processed differently in the brain centers of the main and accessory olfactory systems. © 2013 Springer-Verlag Berlin Heidelberg. -
dc.language English -
dc.publisher Springer -
dc.subject Odor Processing -
dc.subject Olfactory Bulb Neuron -
dc.subject Pheromone Processing -
dc.subject Synaptic Connectivity -
dc.subject Ultrastructure -
dc.title Ultrastructure and synaptic connectivity of main and accessory olfactory bulb efferent projections terminating in the rat anterior piriform cortex and medial amygdala -
dc.type Article -
dc.identifier.doi 10.1007/s00429-013-0588-5 -
dc.identifier.wosid 000341375500007 -
dc.identifier.scopusid 2-s2.0-85027935666 -
dc.type.local Article(Overseas) -
dc.type.rims ART -
dc.description.journalClass 1 -
dc.contributor.nonIdAuthor Park, Sook Kyung -
dc.contributor.nonIdAuthor Kim, Jong Ho -
dc.contributor.nonIdAuthor Yang, Eun Sun -
dc.contributor.nonIdAuthor Ahn, Dong Kuk -
dc.contributor.nonIdAuthor Bae, Yong Chul -
dc.identifier.citationVolume 219 -
dc.identifier.citationNumber 5 -
dc.identifier.citationStartPage 1603 -
dc.identifier.citationEndPage 1613 -
dc.identifier.citationTitle Brain Structure and Function -
dc.type.journalArticle Article -
dc.description.isOpenAccess N -
dc.contributor.affiliatedAuthor Moon, Cheil -
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Department of Brain Sciences Laboratory of Chemical Senses 1. Journal Articles


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