Linked Life Data

6728125

Source:http://linkedlifedata.com/resource/pubmed/id/6728125

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1984-7-12
pubmed:abstractText
Administration of L-kynurenine and some analogous molecules into the right lateral ventricle caused convulsive attacks in rats. These convulsions are tonic-clonic. Various modifications of the structure of L-kynurenine affected the production of convulsions. In particular, methylation of the carboxyl group increased the potency. Methylation of the carboxyl function and hydroxylation of the benzene ring greatly increased the latency and the duration of the convulsions. Removal of the carboxyl function or its reduction resulted in the loss of the epileptogenic effect. Masking of the amino function with formyl or acetyl residues also produced inactive compounds. The results of structural modification of the kynurenine carbon skeleton clearly show that the structure essential for stimulation of convulsive activity includes a free amino group and a free or masked carboxyl function. The molecular structure able to induce convulsive effects appears to be the laevo -isomer of kynurenine, since the dextro-form has been proved to be inactive. The convulsant activity, evaluated as the ED50, for L-kynurenine, is between that of bicuculline and pentamethylenetetrazole . The convulsant mechanism of kynurenine is unknown, but might very possibly involve interference with the activity of certain inhibitory neurotransmitters.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0028-3908
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
333-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Experimental convulsions in rats induced by intraventricular administration of kynurenine and structurally related compounds.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't