Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1995-2-16
pubmed:abstractText
Using a K(+)-sensitive electrode in synaptosomal preparations, the presynaptic modulating effect of dopamine and GABA in opening a K+ channel was investigated. In cortical, striatal and hippocampal synaptosomes dopamine D1 and D2 agonists and a GABAB agonist promoted the efflux of K+ in all three preparations. The effect was blocked by the cyclooxygenase inhibitor, indomethacin suggesting that eicosanoids act as second messengers in these systems. The inference in these studies is that dopamine and GABA hyperpolarize presynaptic terminals thereby reducing Ca2+ influx and thus inhibiting the evoked release of transmitters.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0197-0186
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
345-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Presynaptic modulation by dopamine and GABA opens a potassium channel in rat cortical, striatal and hippocampal synaptosomes via eicosanoids.
pubmed:affiliation
Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06510.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.