Linked Life Data

1519

Source:http://linkedlifedata.com/resource/pubmed/id/1519

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1976-3-30
pubmed:abstractText
The effects of two barbiturates on calcium uptake by sympathetic ganglia have been examined. Sodium pentobarbital (0.4-0.75 mM) and sodium thiopental (0.3 mM) block the preganglionic stimulation-induced uptake of 45Ca by rat superior cervical ganglia but not action potential conduction in the presynaptic axons. The ganglionic-blocking agent, tetraethylammonium, does not inhibit stimulation-induced Ca uptake and does not prevent the blocking effect of thiopental. This effect is therefore probably presynaptic. Postassium-rich media also stimulate Ca uptake by the ganglia, and this effect is markedly inhibited by pentobarbital. Since the K stimulation effect is also observed in deafferented ganglia but not in guanethidine-denervated ganglia, this effect is probably associated primarily with postsynaptic elements. In sum, the data suggest that the barbiturates inhibit Ca permeability changes in both pre- and postsynaptic neurons.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0022-3565
pubmed:author
pubmed:issnType
Print
pubmed:volume
196
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
80-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
Barbiturates block calcium uptake by stimulated and potassium-depolarized rat sympathetic ganglia.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S.