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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1996-8-20
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pubmed:abstractText |
We have studied the interaction of idebenone (2,3-dimethoxy-5-methy-6-(10-hydroxy)decyl-1,4-benzoquinone) with the energy-conserving complexes of the respiratory chain in beef heart mitochondria and compared its energetic efficiency with that of other analogs of coenzyme Q. Idebenone is a very effective substrate for succinate:Q reductase and ubiquinol:cytochrome c reductase, but it is clearly a poor substrate for NADH:Q reductase (complex I). Indeed, idebenone is a strong inhibitor of both the redox and proton pumping activity of complex I, showing effects in part similar to those of coenzyme Q-2. However, the mechanism of idebenone interaction with complex I may be different from that of Q-2 because of its different sensitivity to inhibitors. The possible relevance of the present findings to the therapeutic use of idebenone is discussed.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Benzoquinones,
http://linkedlifedata.com/resource/pubmed/chemical/Enzyme Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/NAD(P)H Dehydrogenase (Quinone),
http://linkedlifedata.com/resource/pubmed/chemical/Ubiquinone,
http://linkedlifedata.com/resource/pubmed/chemical/idebenone
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0003-9861
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
330
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
395-400
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:8660670-Animals,
pubmed-meshheading:8660670-Benzoquinones,
pubmed-meshheading:8660670-Cattle,
pubmed-meshheading:8660670-Electron Transport,
pubmed-meshheading:8660670-Energy Metabolism,
pubmed-meshheading:8660670-Enzyme Inhibitors,
pubmed-meshheading:8660670-Mitochondria, Heart,
pubmed-meshheading:8660670-NAD(P)H Dehydrogenase (Quinone),
pubmed-meshheading:8660670-Oxidation-Reduction,
pubmed-meshheading:8660670-Substrate Specificity,
pubmed-meshheading:8660670-Ubiquinone
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pubmed:year |
1996
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pubmed:articleTitle |
The interaction of Q analogs, particularly hydroxydecyl benzoquinone (idebenone), with the respiratory complexes of heart mitochondria.
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pubmed:affiliation |
Centre for Molecular Biology and Medicine, Monash University, Melbourne, Victoria, Australia.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, Non-U.S. Gov't
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