Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1988-3-10
pubmed:abstractText
This investigation demonstrates that stimulation of the perforant path under conditions which elicit wet dog shakes in rats produces a significant decrease in hippocampal levels of methionine-enkephalin, dynorphin A(1-8) and glutamine, and an increase in gamma-aminobutyric acid (GABA). Levels of these substances are not altered by stimulus parameters insufficient to elicit wet dog shakes. These results lend support to the notion that endogenous opioid peptides play a role in regulation of hippocampal excitability but may only be released under relatively intense stimulus conditions. The increase in GABA levels could be due to an increase in synthesis, an increase in reuptake or a reduction in release. The latter possibility is consistent with reports that iontophoretically applied enkephalin exerts its apparent excitatory effects via an inhibitory action on inhibitory neurons in the hippocampus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
435
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
343-7
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Stimulation of the perforant path alters hippocampal levels of opioid peptides, glutamine and GABA.
pubmed:affiliation
Laboratory of Behavioral and Neurological Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709.
pubmed:publicationType
Journal Article