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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1991-4-26
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pubmed:abstractText |
Sprague-Dawley rats were subjected to a moderate level (2.2 atm) of traumatic brain injury (TBI) using fluid percussion. Injured animals were allowed post-trauma survival periods of 5 min, 3 and 24 h. Regional glutamate receptor subtype binding was assessed with quantitative autoradiography in each group for N-methyl-D-aspartate (NMDA), quisqualate and kainate receptor subpopulations at approximately the -3.8 bregma level and compared to a sham control group. [3H]glutamate binding to the NMDA receptor was significantly (P less than 0.05) decreased at 3 h post-TBI in the hippocampal CA1 stratum radiatum, the molecular layers of the dentate gyri and the outer (layers 1-3) and inner (layers 5 and 6) overlying neocortex. NMDA receptor binding was significantly reduced in layers 5 and 6 of the neocortex at all post-trauma survival times but no further differences were seen in the hippocampi. No significant changes were observed with [3H]AMPA binding to quisqualate receptors and [3H]KA binding was significantly reduced only in layers 5 and 6 of the neocortex at 24 h after TBI. These data further confirm the pathological involvement of the NMDA receptor complex in brain regions selectively vulnerable to moderate levels of TBI in this model.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Kainic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Oxadiazoles,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, AMPA,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Kainic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, N-Methyl-D-Aspartate,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Neurotransmitter
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0006-8993
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
27
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pubmed:volume |
526
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
103-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:1964103-Animals,
pubmed-meshheading:1964103-Brain Injuries,
pubmed-meshheading:1964103-Kainic Acid,
pubmed-meshheading:1964103-Oxadiazoles,
pubmed-meshheading:1964103-Rats,
pubmed-meshheading:1964103-Rats, Inbred Strains,
pubmed-meshheading:1964103-Receptors, AMPA,
pubmed-meshheading:1964103-Receptors, Kainic Acid,
pubmed-meshheading:1964103-Receptors, N-Methyl-D-Aspartate,
pubmed-meshheading:1964103-Receptors, Neurotransmitter
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pubmed:year |
1990
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pubmed:articleTitle |
Excitatory amino acid receptor subtype binding following traumatic brain injury.
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pubmed:affiliation |
Neuroscience Laboratory, Veterans Administration Medical Center, Washington, DC 20422.
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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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