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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1992-6-12
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pubmed:abstractText |
When bovine aortic endothelial (BAE) cells are superfused with a solution containing low calcium (approximately 10 nM) and subsequently exposed to a solution containing normal Ca2+ (2 mM) a large transient increase in intracellular calcium is seen. This elevation in [Ca2+]i is similar to that described as the calcium paradox in cardiac cells. If the cells are exposed to the agonist, ATP, during the period in low-Ca2+ solution the paradoxical rise in [Ca2+]i is increased. Removal of external Na+ from the low-Ca2+ solution reduces the rise in [Ca2+]i on returning to 2mM-Ca2+ solution. These data are consistent with the presence of a calcium paradox in these cells and with the hypothesis that the underlying mechanism involves the loading of the cell with Na+ during the period in low Ca2+. This process may occur as a result of the altered selectivity of the ATP-activated Ca2+ influx mechanism.
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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:month |
Mar
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pubmed:issn |
0958-0670
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
77
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
393-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1581069-Adenosine Triphosphate,
pubmed-meshheading:1581069-Animals,
pubmed-meshheading:1581069-Aorta,
pubmed-meshheading:1581069-Calcium,
pubmed-meshheading:1581069-Cattle,
pubmed-meshheading:1581069-Endothelium, Vascular,
pubmed-meshheading:1581069-Intracellular Fluid,
pubmed-meshheading:1581069-Ion Exchange,
pubmed-meshheading:1581069-Sodium
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pubmed:year |
1992
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pubmed:articleTitle |
Is there a calcium paradox in isolated bovine aortic endothelial cells?
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pubmed:affiliation |
Department of Physiological Sciences, Medical School, The University, Newcastle upon Tyne.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, Non-U.S. Gov't
|