Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1991-5-31
pubmed:abstractText
Three fractionation procedures (immunoaffinity chromatography, two-dimensional nondenaturing electrophoresis, and heparin-agarose affinity chromatography) have been compared in determining the kinetics of free and ester cholesterol transfer in normolipemic native plasma. Similar results were obtained in each case. Cell-derived free cholesterol is initially enriched in high density lipoproteins (HDL) (mainly HDL without apoE); at longer time periods (greater than 10 min) greater proportions are observed in very low density lipoproteins (VLDL) and low density lipoproteins (LDL). The major part of cholesteryl ester (about 90%) was retained in HDL, while VLDL and LDL, which contained about 75% of total cholesteryl ester mass, received only about 10% of cell-derived cholesteryl ester. Within HDL, almost all cholesteryl ester was in the apoE-free fraction. These data provide evidence that lipoprotein free and esterified cholesterol are not at chemical equilibrium in normal plasma, and that cell-derived cholesterol is preferentially directed to HDL. The techniques used had a comparable effectiveness for the rapid fractionation of labile lipoprotein lipid radioactivity.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-2275
pubmed:author
pubmed:issnType
Print
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2195-200
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Distribution of cell-derived cholesterol among plasma lipoproteins: a comparison of three techniques.
pubmed:affiliation
Cardiovascular Research Institute, University of California Medical Center, San Francisco, CA 94143.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't