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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3-4
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pubmed:dateCreated |
1995-7-31
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pubmed:abstractText |
The enzymes of mitochondrial respiratory chain, NADH dehydrogenase (complex I) and cytochrome c oxidase (complex IV), were completely inhibited by 6-hydroxydopamine with IC50 = 10.5 microM and IC50 = 34 microM respectively. The enzyme inhibition was insensitive to the change of NADH or cytochrome c concentrations. The extent of complex I inhibition decreased as a consequence of both non-enzymatic and monoamine oxidase-catalyzed oxidation of 6-hydroxydopamine. Monoamine oxidase A and B inhibitors, tranylcypromine and clorgyline but not l-deprenyl increased the extent of 6-hydroxydopamine induced inhibition of complex I. Thus, 6-hydroxydopamine itself and not its oxidation products may be responsible for the neurotoxicity of this agent via inhibition of respiratory chain enzymes.
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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
|
pubmed:month |
Mar
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
16
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pubmed:volume |
292
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
329-32
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7796873-Animals,
pubmed-meshheading:7796873-Brain,
pubmed-meshheading:7796873-Electron Transport Complex IV,
pubmed-meshheading:7796873-Kinetics,
pubmed-meshheading:7796873-Male,
pubmed-meshheading:7796873-Mitochondria,
pubmed-meshheading:7796873-Monoamine Oxidase Inhibitors,
pubmed-meshheading:7796873-NADH Dehydrogenase,
pubmed-meshheading:7796873-Oxidation-Reduction,
pubmed-meshheading:7796873-Oxidopamine,
pubmed-meshheading:7796873-Oxygen Consumption,
pubmed-meshheading:7796873-Rats,
pubmed-meshheading:7796873-Rats, Sprague-Dawley
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pubmed:year |
1995
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pubmed:articleTitle |
Inhibition of mitochondrial complexes I and IV by 6-hydroxydopamine.
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pubmed:affiliation |
Department of Pharmacology, Faculty of Medicine, Technion, Haifa, Israel.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, Non-U.S. Gov't
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