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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1983-5-5
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pubmed:abstractText |
Changes in the uptake of pyruvate by nonsynaptic and synaptic mitochondria from brains of young adult and old rats were investigated. An age-dependent decrease in State 3 respiration in the presence of pyruvate plus malate as substrate was observed in cerebral mitochondrial populations but not in liver mitochondria. Addition of exogenous cytochrome c to nonsynaptic and synaptic mitochondria enhanced the rate of State 3 respiration but the age-dependent decrease in State 3 respiration persisted in both types of mitochondria. A decrease in the uptake of pyruvate as measured by the inhibitor-stop and rapid centrifugation techniques was observed in both nonsynaptic and synaptic mitochondria from 24-month-old rats compared to 3-month-old rats. The results suggest that the decrease in the uptake of pyruvate may be one of the factors responsible for the observed reduction in State 3 respiration in the presence of pyruvate plus malate by both nonsynaptic and synaptic mitochondria from brains of senescent rats compared to young adults.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cytochrome c Group,
http://linkedlifedata.com/resource/pubmed/chemical/Malates,
http://linkedlifedata.com/resource/pubmed/chemical/Pyruvates,
http://linkedlifedata.com/resource/pubmed/chemical/Pyruvic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/malic acid
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0047-6374
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
20
|
pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
343-51
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6300572-Aging,
pubmed-meshheading:6300572-Animals,
pubmed-meshheading:6300572-Brain,
pubmed-meshheading:6300572-Cytochrome c Group,
pubmed-meshheading:6300572-Malates,
pubmed-meshheading:6300572-Male,
pubmed-meshheading:6300572-Mitochondria,
pubmed-meshheading:6300572-Oxygen Consumption,
pubmed-meshheading:6300572-Pyruvates,
pubmed-meshheading:6300572-Pyruvic Acid,
pubmed-meshheading:6300572-Rats,
pubmed-meshheading:6300572-Synapses
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pubmed:year |
1982
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pubmed:articleTitle |
Age-dependent changes in pyruvate uptake by nonsynaptic and synaptic mitochondria from rat brain.
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pubmed:publicationType |
Journal Article,
Comparative Study,
In Vitro,
Research Support, U.S. Gov't, P.H.S.
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