Linked Life Data

3200436

Source:http://linkedlifedata.com/resource/pubmed/id/3200436

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-1-26
pubmed:abstractText
The ability of pentobarbital to modify the direct effects of iontophoretically ejected serotonin on the firing rates of cerebellar Purkinje cells was examined. Serotonin elicited inhibition, excitation, or a biphasic effect on cerebellar Purkinje cells. With continuous application of iontophoretic pentobarbital at currents found to potentiate GABA-induced inhibition, serotonin-mediated inhibitions were also augmented consistently. When application of serotonin elicited excitation, including a late component of biphasic responses, iontophoretic pentobarbital converted the effect to, primarily, inhibition. Besides increasing the magnitude of serotonin-mediated inhibition, iontophoretic pentobarbital increased the duration of this effect. In another series of experiments using pentobarbital rather than urethan as the anesthetic, serotonin-mediated inhibition was significantly augmented for all ejection currents tested. The GABA antagonists bicuculline, pentylenetetrazole and picrotoxin attenuated pentobarbital augmentation of serotonin-elicited inhibition. We conclude that serotonin-mediated inhibition of Purkinje cells is modifiable by pentobarbital and this effect bears a strong semblance to the actions of barbiturates on GABAergic neurotransmission.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0306-4522
pubmed:author
pubmed:issnType
Print
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
107-15
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Pentobarbital augments serotonin-mediated inhibition of cerebellar Purkinje cells.
pubmed:affiliation
Department of Physiology, Texas Tech University Health Sciences Center, School of Medicine, Lubbock 79430.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.