Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1995-6-21
|
pubmed:abstractText |
Withdrawal from chronic ethanol administration results in hyperexcitability. In the hippocampus, evoked bursting activity and spontaneous epileptiform events are seen. The present study investigated the effect of ethanol withdrawal on N-methyl-D-aspartate (NMDA) receptor-mediated postsynaptic potentials and on voltage-gated calcium currents, in mouse hippocampal pyramidal cells. The NMDA receptor-mediated component of synaptic excitation was increased during withdrawal, accompanied by an increase in synaptic activation of calcium spikes. Evidence for a direct effect of ethanol withdrawal on calcium channel function was seen in voltage clamp recordings of isolated, slowly inactivating calcium currents. A synergistic effect of increased NMDA receptor and calcium channel function is therefore suggested to contribute to hyperexcitability during ethanol withdrawal.
|
pubmed:grant | |
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0735-0414
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
30
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
105-14
|
pubmed:dateRevised |
2010-8-25
|
pubmed:meshHeading |
pubmed-meshheading:7748267-Animals,
pubmed-meshheading:7748267-Arousal,
pubmed-meshheading:7748267-Calcium Channels,
pubmed-meshheading:7748267-Ethanol,
pubmed-meshheading:7748267-Hippocampus,
pubmed-meshheading:7748267-Male,
pubmed-meshheading:7748267-Mice,
pubmed-meshheading:7748267-Pyramidal Cells,
pubmed-meshheading:7748267-Receptors, N-Methyl-D-Aspartate,
pubmed-meshheading:7748267-Substance Withdrawal Syndrome,
pubmed-meshheading:7748267-Synaptic Transmission,
pubmed-meshheading:7748267-Time Factors
|
pubmed:year |
1995
|
pubmed:articleTitle |
Increased NMDA receptor and calcium channel activity underlying ethanol withdrawal hyperexcitability.
|
pubmed:affiliation |
Department of Pharmacology, Medical School, University Walk, Bristol, UK.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|