Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1987-7-29
pubmed:abstractText
The effect of acute respiratory hypoxia in rats on mitochondrial respiration, adenine nucleotides and some amino acids of the heart was studied. The decrease in the total (ATP + ADP + AMP) and exchangeable (ATP + ADP) adenine nucleotide pool of the mitochondria was accompanied by a pronounced loss of state 3 respiration with glutamate plus malate and a slight decrease with succinate plus rothenone. The uncoupled respiration of mitochondria with glutamate and malate was decreased in the same degree as in the absence of 2,4-dinitrophenol. State 4 respiration with substrates of both types was unaffected by hypoxia. These data point to a hypoxia-induced impairment of complex I of the respiratory chain. The decrease of tissue and mitochondrial glutamate was accompanied by the elevation of alanine content in the heart and an increase in intramitochondrial aspartate. The ADP-stimulated respiration of mitochondria was correlated with mitochondrial glutamate and ATP as well as with exchangeable adenine nucleotide pools during hypoxia. The experimental results suggest that mitochondrial dysfunction induced by hypoxia may also be attributed to the low level of mitochondrial glutamate.
pubmed:language
rus
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0320-9725
pubmed:author
pubmed:issnType
Print
pubmed:volume
52
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
543-9
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
[Relation between glutamate and adenine nucleotide levels of heart mitochondria during hypoxia].
pubmed:publicationType
Journal Article, English Abstract