Linked Life Data

12150959

Source:http://linkedlifedata.com/resource/pubmed/id/12150959

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2002-8-1
pubmed:abstractText
The glutamate transporter inhibitor, L-trans-pyrrolidine-2,4-dicarboxylic acid (PDC) reversibly enhanced hippocampal neuronal activity in the rat and mouse dentate gyrus. The PDC action was still found in mice lacking the glial glutamate transporter GLT-1. PDC did not influence the rate of spontaneous miniature excitatory postsynaptic currents and spontaneous inhibitory postsynaptic currents, ionotropic glutamate receptor currents, or GABA-evoked currents in cultured rat hippocampal neurons. PDC increased glutamate released from cultured hippocampal astrocytes from normal rats, normal mice, and GLT-1 knock-out mice, that is not inhibited by deleting extracellular Na(+), while the drug had no effect on the release from cultured rat hippocampal neurons. The results of the present study thus suggest that PDC stimulates glial glutamate release by a mechanism independent of inhibiting glutamate transporters, which perhaps causes an increase in synaptic glutamate concentrations, in part responsible for the enhancement in hippocampal neuronal activity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
12
pubmed:volume
295
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
376-81
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
L-trans-PDC enhances hippocampal neuronal activity by stimulating glial glutamate release independently of blocking transporters.
pubmed:affiliation
Department of Physiology, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya 663-8501, Japan.
pubmed:publicationType
Journal Article, In Vitro