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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
18
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pubmed:dateCreated |
1983-11-23
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pubmed:abstractText |
Milacemide (CP 1552 S, 2-n-pentylaminoacetamide), a drug with anti-epileptic potency, increases the gamma-aminobutyric acid (GABA) content specifically in the substantia nigra of rat brain. The effect is dose-related from 25 to 100 mg/kg p.o. The time course shows that at 100 mg/kg p.o. after 2, 3 and 4 hr the substantia nigra GABA content is significantly increased by 28, 33 and 38%, respectively. After 6 hr the GABA contents return to the control value. After repeated oral administration of milacemide a comparable effect to acute administration is obtained. After degeneration of the striato-nigral GABA-ergic pathway, milacemide no longer enhances the content of GABA in the substantia nigra. GABA-transaminase activity measured ex vivo in rat brain homogenate is not influenced by milacemide. On the other hand, the glutamate decarboxylase activity measured ex vivo 3 hr after 100 mg/kg of milacemide is significantly increased by 11% in homogenates of the whole rat brain. The results show that milacemide increases the GABA content in the GABA pool which is associated with the striato-nigral neurons. This increase is not due to GABA-transaminase inhibition but might be the result of an enhanced synthesis, possibly through glutamate decarboxylase activation.
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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:month |
Sep
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pubmed:issn |
0006-2952
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
32
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2751-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6414480-Acetamides,
pubmed-meshheading:6414480-Aminooxyacetic Acid,
pubmed-meshheading:6414480-Animals,
pubmed-meshheading:6414480-Brain,
pubmed-meshheading:6414480-Kinetics,
pubmed-meshheading:6414480-Male,
pubmed-meshheading:6414480-Organ Specificity,
pubmed-meshheading:6414480-Rats,
pubmed-meshheading:6414480-Rats, Inbred Strains,
pubmed-meshheading:6414480-Substantia Nigra,
pubmed-meshheading:6414480-Valproic Acid,
pubmed-meshheading:6414480-gamma-Aminobutyric Acid
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pubmed:year |
1983
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pubmed:articleTitle |
Effect of milacemide, a glycinamide derivative, on the rat brain gamma-aminobutyric acid system.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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