Linked Life Data

3342249

Source:http://linkedlifedata.com/resource/pubmed/id/3342249

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1988-4-1
pubmed:abstractText
Plasma very-low-density lipoproteins (VLDL) (d less than 1.006 g/ml) were purified from baboons by repeated ultracentrifugation. The weight composition of VLDL purified from these animals was 59% triacylglycerol, 17% phospholipid, 13% cholesterol plus cholesteryl esters, and 11% protein. When purified VLDL was fractionated using heparin-Sepharose chromatography, an average of 33% of the total recovered proteins were unbound in a saline solution, and 67% (range, 31 to 92%) were bound by the column, but could be eluted with 3 M NaCl. Recoveries of starting protein and the major classes of lipids in the two fractions were 70-80%. The two fractions differed in both apolipoprotein and lipid compositions. Analysis of sodium dodecyl sulfate-treated apolipoproteins using 3-21.5% acrylamide gradient gel electrophoresis indicated that both VLDL fractions contained apolipoprotein B, but only the bound fraction possessed significant amounts of apolipoprotein E. On a weight percent basis, the apolipoprotein-E-rich (bound) VLDL fraction contained significantly more cholesterol and cholesteryl esters (P less than 0.001) and less phospholipids (P less than 0.005) compared to the apolipoprotein E-poor (unbound) VLDL. Apolipoprotein-E-poor VLDL had shorter retention times than E-rich VLDL upon gel filtration chromatography, suggesting a larger size. There was no significant correlation between plasma levels of apolipoprotein-E-poor VLDL and levels of apolipoprotein B. These results demonstrate that baboons possess VLDL which can be separated into apolipoprotein-E-poor and E-rich fractions and these fractions differ in protein and lipid composition and in size.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
19
pubmed:volume
958
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
416-23
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Characterization of very-low-density lipoproteins isolated from baboons, and fractionated using heparin-Sepharose chromatography.
pubmed:affiliation
Departments of Genetics, Southwest Foundation for Biomedical Research, San Antonio, TX 78284.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't