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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1988-2-20
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pubmed:abstractText |
Immunoreactivities for gamma-aminobutyric acid (GABA) and the dopamine-synthesizing enzyme tyrosine hydroxylase (TH) were localized ultrastructurally and colocalized at the light microscopic level in neurons of the rat main olfactory bulb. By means of a simultaneous indirect immunofluorescence technique, GABA and TH immunoreactivities were found to coexist in a large number of neurons in the glomerular and external plexiform layers. Virtually all the TH-immunoreactive periglomerular neurons also contained GABA immunoreactivity (GABA-I) while there was an additional number of GABA-immunoreactive periglomerular cells (27%) which did not contain TH immunoreactivity (TH-I). In contrast, the numerous tufted-type neurons in the glomerular and superficial external plexiform layers which contained TH-I did not contain GABA-I. In the external plexiform layer (EPL), 41% of the immunoreactive neurons contained GABA-I alone, 24% contained TH-I alone, and 35% contained both. EPL neurons containing GABA-I only or both GABA-I and TH-I never exhibited tufted cell morphological characteristics and were generally of the short-axon type. Electron microscopic examination of GABA-I and TH-I elements in the glomerular layer detected morphologically similar periglomerular perikarya and intraglomerular processes immunoreactive for each substance and other neurons and processes of the same type containing neither GABA-I or TH-I. These data indicate that the classical neurotransmitters GABA and dopamine coexist in large numbers of neurons in the rat main olfactory bulb including characteristic periglomerular cells and certain other local-circuit neuronal types.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0021-9967
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
266
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
307-18
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2891733-Animals,
pubmed-meshheading:2891733-Dopamine,
pubmed-meshheading:2891733-Microscopy, Electron,
pubmed-meshheading:2891733-Neurons,
pubmed-meshheading:2891733-Olfactory Bulb,
pubmed-meshheading:2891733-Rats,
pubmed-meshheading:2891733-Rats, Inbred Strains,
pubmed-meshheading:2891733-Tyrosine 3-Monooxygenase,
pubmed-meshheading:2891733-gamma-Aminobutyric Acid
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pubmed:year |
1987
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pubmed:articleTitle |
Evidence for coexistence of GABA and dopamine in neurons of the rat olfactory bulb.
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pubmed:affiliation |
Department of Anatomy and Neurobiology, University of California, Irvine 92717.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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