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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1988-6-13
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pubmed:abstractText |
Intracellular recordings were obtained from rat hippocampal neurons during the microiontophoretic ejection of the stereoisomers of cis- and trans-1-amino-1,3-cyclopentane dicarboxylate into the dendritic region (stratum radiatum) of the impaled cells. L-(+)-cis-1-Amino-1,3-cyclopentane dicarboxylate, D(+)-trans-1-amino-1,3-cyclopentane dicarboxylate, and L-(-)-trans-1-amino-1,3-cyclopentane dicarboxylate all evoked patterns of excitation resembling that elicited by kainate. All of these responses were unaffected by D-(-)-2-amino-5-phosphonovalerate but were antagonized at comparable currents by kynurenate. The excitation produced by D-(-)-cis-1-amino-1,3-cyclopentane dicarboxylate was similar to that evoked by N-methyl-D-aspartate. At low ejection currents a slow depolarization triggered rhythmic burst firing, each burst consisting of a depolarizing shift in membrane potential upon which were superimposed four to five action potentials. These responses were antagonized both by D-(-)-2-amino-5-phosphonovalerate and by kynurenate. The results are discussed with respect to the conformational requirements considered to be necessary for interaction at the kainate and N-methyl-D-aspartate receptors on CA1 pyramidal neurones. It is important to note that the isopropylene side chain of kainate is absent from the 1-amino-1-3-cyclopentane dicarboxylate molecule.
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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/Amino Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Convulsants,
http://linkedlifedata.com/resource/pubmed/chemical/Cycloleucine,
http://linkedlifedata.com/resource/pubmed/chemical/Kynurenic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Oxadiazoles,
http://linkedlifedata.com/resource/pubmed/chemical/Quisqualic Acid
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0008-4212
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
65
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2196-201
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3329564-Amino Acids,
pubmed-meshheading:3329564-Animals,
pubmed-meshheading:3329564-Convulsants,
pubmed-meshheading:3329564-Cycloleucine,
pubmed-meshheading:3329564-Evoked Potentials,
pubmed-meshheading:3329564-Hippocampus,
pubmed-meshheading:3329564-Iontophoresis,
pubmed-meshheading:3329564-Kynurenic Acid,
pubmed-meshheading:3329564-Male,
pubmed-meshheading:3329564-Neurons,
pubmed-meshheading:3329564-Oxadiazoles,
pubmed-meshheading:3329564-Pyramidal Tracts,
pubmed-meshheading:3329564-Quisqualic Acid,
pubmed-meshheading:3329564-Rats,
pubmed-meshheading:3329564-Stereoisomerism
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pubmed:year |
1987
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pubmed:articleTitle |
Excitation of rat hippocampal neurones by the stereoisomers of cis- and trans-1-amino-1,3-cyclopentane dicarboxylate.
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pubmed:affiliation |
Department of Physiology, Faculty of Medicine, University of British Columbia, Vancouver, Canada.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, Non-U.S. Gov't
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