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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1994-12-19
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pubmed:abstractText |
The distribution of functionally active monoamine oxidase type A (MAO-A) was investigated by in vivo quantitative autoradiography using [14C]clorgyline in normal, conscious rat brain. [14C]clorgyline was synthesized by the methylation reaction of N-desmethylclorgyline using [14C]methyliodide. Sixty minutes after [14C]clorgyline administration (1.58 MBq/animal i.v.), the brains were removed and prepared for autoradiography by washing the brain sections with 5% trichloroacetic acid solution to remove the nonbinding free tracer. The amount of MAO-A was calculated from the regional acid-insoluble tissue radioactivity and the specific activity of the tracer. The highest amount of MAO-A (5.84 nmol/g tissue) was found in the locus coeruleus. The interpeduncular nucleus, habenular nucleus, fasciculus retroflexus, and solitary tract nucleus possessed over 1.6 nmol/g tissue of MAO-A. Among 23 regions of interest, the lowest amount of MAO-A (0.37 nmol/g tissue) was found in the globus pallidus. The findings of this study suggest that the pattern of MAO-A parallels both in neuroanatomical distribution and in density that of norepinephrine and serotonin innervation. The MAO-A concentration was, however, relatively low in the dopamine-related areas. This corresponded to the previous results obtained by histochemical analysis. In addition, among the white matter structures, a high amount of MAO-A was found specifically in the fasciculus retroflexus.
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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 |
0014-4819
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
99
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
375-8
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pubmed:dateRevised |
2009-11-11
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pubmed:meshHeading |
pubmed-meshheading:7957717-Animals,
pubmed-meshheading:7957717-Autoradiography,
pubmed-meshheading:7957717-Brain,
pubmed-meshheading:7957717-Clorgyline,
pubmed-meshheading:7957717-Isotope Labeling,
pubmed-meshheading:7957717-Male,
pubmed-meshheading:7957717-Monoamine Oxidase,
pubmed-meshheading:7957717-Rats,
pubmed-meshheading:7957717-Rats, Sprague-Dawley,
pubmed-meshheading:7957717-Selegiline
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pubmed:year |
1994
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pubmed:articleTitle |
Quantitative distribution of rat brain monoamine oxidase A by [14C]clorgyline autoradiography.
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pubmed:affiliation |
Department of Neurology, Research Institute for Brain and Blood Vessels-Akita, Japan.
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pubmed:publicationType |
Journal Article
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