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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1997-5-27
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pubmed:abstractText |
Primary neuronal cultures were made from eight-day-old embryonic chick telencephalon. Ten-day-old cultures were used to study the release of D-[3H]aspartate and L-[3H]glutamate. The D[3H]aspartate release was stimulated by increasing potassium concentrations, but it was not calcium dependent. In contrast, the potassium dependent L-[3H]glutamate release was calcium dependent, and furthermore L-[3H]glutamate release was optimal at potassium concentrations < 30 mM. The inhibitors of glutamate uptake, dihydrokainate and 1-aminocyclobutane-trans-1,3-dicarboxylic acid (CACB), also referred to as cis-1 -aminocyclobutane-1,3-dicarboxylate, were used in the release experiments. Dihydrokainate had no effect on aspartate release, whereas CACB increased both the basal efflux of D-[3H]aspartate and the potassium evoked release. CACB had no effect on the potassium stimulated L-glutamate release. We believe that L-glutamate is released mainly by a vesicular mechanism from the presumably glutamatergic neurons present in our culture. D-aspartate release observed by us, could be mediated by a transporter protein. The cellular origin of this release remains to be assessed.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/2,4-methanoglutamate,
http://linkedlifedata.com/resource/pubmed/chemical/Aspartic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Glutamates,
http://linkedlifedata.com/resource/pubmed/chemical/Glutamic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Kainic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/dihydrokainic acid
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0364-3190
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
21
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
79-85
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8833227-Animals,
pubmed-meshheading:8833227-Aspartic Acid,
pubmed-meshheading:8833227-Biological Transport,
pubmed-meshheading:8833227-Cells, Cultured,
pubmed-meshheading:8833227-Chick Embryo,
pubmed-meshheading:8833227-Drug Evaluation, Preclinical,
pubmed-meshheading:8833227-Exocytosis,
pubmed-meshheading:8833227-Glutamates,
pubmed-meshheading:8833227-Glutamic Acid,
pubmed-meshheading:8833227-Kainic Acid,
pubmed-meshheading:8833227-Neurons
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pubmed:year |
1996
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pubmed:articleTitle |
Differences in the release of L-glutamate and D-aspartate from primary neuronal chick cultures.
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pubmed:affiliation |
Department of Cellular and Developmental Biology, Umeå University, Sweden.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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