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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1985-4-15
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pubmed:abstractText |
Regulation of cell volume as a fundamental cellular function of high biological priority was studied in cultured cerebrovascular endothelium. The use of a multiparameter flow cytometric system allowed simultaneous measurements of cell volume, viability, and membrane potential or intracellular pH. Endothelium, the cellular constituent of the blood-brain barrier (BBB), swells immediately on exposure to low osmolality. This is associated with membrane depolarization and a fall of intracellular pH. Within 30-60 min, cell volume and membrane potential recover completely, although the extracellular osmolality is kept low. Intracellular pH does not normalize fully. Measurements of intracellular K+ and Na+ concentrations reveal their involvement in the regulatory process. The findings strongly suggest that the cerebrovascular endothelium has a highly effective built-in capacity for homeostatic control essential for normal BBB function.
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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 |
Apr
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pubmed:issn |
0021-9541
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
123
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
51-4
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3972911-Animals,
pubmed-meshheading:3972911-Brain,
pubmed-meshheading:3972911-Capillaries,
pubmed-meshheading:3972911-Cells, Cultured,
pubmed-meshheading:3972911-Endothelium,
pubmed-meshheading:3972911-Flow Cytometry,
pubmed-meshheading:3972911-Hydrogen-Ion Concentration,
pubmed-meshheading:3972911-Membrane Potentials,
pubmed-meshheading:3972911-Osmolar Concentration,
pubmed-meshheading:3972911-Potassium,
pubmed-meshheading:3972911-Rats,
pubmed-meshheading:3972911-Sodium
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pubmed:year |
1985
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pubmed:articleTitle |
Cell volume regulation of cerebrovascular endothelium in vitro.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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