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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1984-10-25
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pubmed:abstractText |
The involvement of GABA-transaminase (GABA-T) in the blood-brain barrier to GABA was investigated using a sensitive radiotracer technique which allows measurement of tracer permeation as a cerebrovascular permeability-area product, PA. In Sprague-Dawley rats subjected to peripheral GABA-T inhibition and occlusion of hepatic circulation, chromatographic (TLC) analysis together with lyophylized plasma samples showed the radioactivity measured in brain parenchyma was derived from the permeation of unchanged [3H]GABA and not its blood-borne metabolites. Permeation (PA) of i.v. injected [3H]GABA was poor in all brain regions examined. Pretreatment of these rats with various compounds known to inhibit endothelial GABA-T activity did not cause any increased permeation of [3H]GABA into the brain. These results suggest that the poor permeation of GABA into the rat brain is unrelated to the activity of GABA-T at endothelial sites.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0001-6322
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
64
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
61-7
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pubmed:dateRevised |
2007-11-9
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pubmed:meshHeading |
pubmed-meshheading:6475496-4-Aminobutyrate Transaminase,
pubmed-meshheading:6475496-Animals,
pubmed-meshheading:6475496-Blood-Brain Barrier,
pubmed-meshheading:6475496-Brain,
pubmed-meshheading:6475496-Male,
pubmed-meshheading:6475496-Rats,
pubmed-meshheading:6475496-Rats, Inbred Strains,
pubmed-meshheading:6475496-gamma-Aminobutyric Acid
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pubmed:year |
1984
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pubmed:articleTitle |
The involvement of GABA-transaminase in the blood-brain barrier to radiolabelled GABA.
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pubmed:publicationType |
Journal Article
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