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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6585
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pubmed:dateCreated |
1996-8-1
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pubmed:abstractText |
Postsynaptic Ca2+ elevation during synaptic transmission is an important trigger for short- and long-term changes in synaptic strength in the vertebrate central nervous system. The AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazoleproprionate) receptors, a subfamily of glutamate receptors, mediate much of the excitatory synaptic transmission in the brain and spinal cord. It has been shown that a subtype of the AMPA receptor is Ca2+-permeable and is present in the subpopulations of neurons. When synaptically localized, these receptors should mediate postsynaptic Ca2+ influx, providing a trigger for changes in synaptic strength. Here we show that Ca2+-permeable AMPA receptors are synaptically localized on a subpopulation of dorsal horn neurons, and that they provide a synaptically gated route of Ca2+ entry, and that activation of these receptors strengthens synaptic transmission mediated by AMPA receptors. This pathway for postsynaptic Ca2+ influx may provide a new form of activity-dependent modulation of synaptic strength.
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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 |
Jun
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pubmed:issn |
0028-0836
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
27
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pubmed:volume |
381
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
793-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8657283-Action Potentials,
pubmed-meshheading:8657283-Calcium,
pubmed-meshheading:8657283-Cell Membrane Permeability,
pubmed-meshheading:8657283-Cells, Cultured,
pubmed-meshheading:8657283-Neurons,
pubmed-meshheading:8657283-Osmotic Pressure,
pubmed-meshheading:8657283-Receptors, AMPA,
pubmed-meshheading:8657283-Spider Venoms,
pubmed-meshheading:8657283-Synapses
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pubmed:year |
1996
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pubmed:articleTitle |
Synaptic strengthening through activation of Ca2+-permeable AMPA receptors.
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pubmed:affiliation |
Department of Physiology and Cellular Biophysics, Columbia University, New York, 10032, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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