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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
45
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pubmed:dateCreated |
1992-12-24
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pubmed:abstractText |
A minor fraction of plasma high-density lipoprotein (pre beta-1 HDL) has been shown to promote cholesterol efflux from peripheral cell membranes [Castro, G. R., & Fielding, C. J. (1988) Biochemistry 27, 25-29]. When isolated native plasma is incubated at 37 degrees C, this fraction is specifically decreased. On the other hand, the level of plasma pre beta-1 HDL is fully protected in the presence of even very low levels of fibroblasts, vascular smooth muscle cells, or macrophages. Blood cells were completely inactive in maintaining plasma pre beta-1 HDL levels in the absence of peripheral cells, even at the relatively high levels present in whole blood. The loss of pre beta-1 observed in isolated plasma was dependent upon lecithin-cholesterol acyltransferase (LCAT) activity. These data suggest that reverse cholesterol transport catalyzed by pre beta-1 HDL, and subsequent LCAT-mediated cholesterol esterification, is directly dependent upon the interaction between this HDL species and competent peripheral cells.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Nov
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pubmed:issn |
0006-2960
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
17
|
pubmed:volume |
31
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
11112-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:1445850-Cell Membrane,
pubmed-meshheading:1445850-Cells, Cultured,
pubmed-meshheading:1445850-Electrophoresis, Agar Gel,
pubmed-meshheading:1445850-Electrophoresis, Gel, Two-Dimensional,
pubmed-meshheading:1445850-High-Density Lipoproteins, Pre-beta,
pubmed-meshheading:1445850-Humans,
pubmed-meshheading:1445850-Lipoproteins, HDL,
pubmed-meshheading:1445850-Phosphatidylcholine-Sterol O-Acyltransferase
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pubmed:year |
1992
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pubmed:articleTitle |
Regulation of the concentration of pre beta high-density lipoprotein in normal plasma by cell membranes and lecithin-cholesterol acyltransferase activity.
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pubmed:affiliation |
Cardiovascular Research Institute, University of California, San Francisco 94143.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|