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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5132
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pubmed:dateCreated |
1993-11-15
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pubmed:abstractText |
Repetitive activation of excitatory synapses in the hippocampus produces a persistent enhancement of synaptic efficiency known as long-term potentiation (LTP). In anesthetized and in freely moving rats, the induction of LTP in the perforant path led to a transient increase in the amount of messenger RNA (mRNA) coding for a presynaptic glutamate receptor (GR33) in dentate granule cells. The amount of GR33 mRNA was increased for at least 5 hours after the induction of LTP but was indistinguishable from control values 1 day after induction. The N-methyl-D-aspartate receptor antagonist 2-aminophosphonovalerate prevented the induction of both LTP and the increase in GR33 mRNA. The amount of GR33 protein was increased in the mossy fiber terminal zone of dentate granule cells 5 hours after the induction of LTP. These results suggest that the induction of LTP in synapses at one stage in a neural network may lead to modification in synaptic function at the next stage in the network.
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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 |
Oct
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pubmed:issn |
0036-8075
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
262
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
433-6
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pubmed:dateRevised |
2007-3-19
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pubmed:meshHeading |
pubmed-meshheading:8105538-2-Amino-5-phosphonovalerate,
pubmed-meshheading:8105538-Animals,
pubmed-meshheading:8105538-Electric Stimulation,
pubmed-meshheading:8105538-Evoked Potentials,
pubmed-meshheading:8105538-Gene Expression,
pubmed-meshheading:8105538-Hippocampus,
pubmed-meshheading:8105538-In Situ Hybridization,
pubmed-meshheading:8105538-Male,
pubmed-meshheading:8105538-RNA, Messenger,
pubmed-meshheading:8105538-Rats,
pubmed-meshheading:8105538-Rats, Sprague-Dawley,
pubmed-meshheading:8105538-Receptors, Glutamate,
pubmed-meshheading:8105538-Receptors, Presynaptic,
pubmed-meshheading:8105538-Synapses
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pubmed:year |
1993
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pubmed:articleTitle |
Transsynaptic expression of a presynaptic glutamate receptor during hippocampal long-term potentiation.
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pubmed:affiliation |
Laboratoire de génétique moléculaire de la neurotransmission et des processus neurodégénératifs, Centre National de la Recherche Scientifique (CNRS), Gif-sur-Yvette, France.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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