Document Detail


Swine lipoproteins and atherosclerosis. Changes in the plasma lipoproteins and apoproteins induced by cholesterol feeding.
MedLine Citation:
PMID:  167808     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cholesterol feeding in miniature swine resulted in a hypercholesterolemia with a distinctive hyperlipoproteinemia and the subsequent development of atherosclerosis. Alterations in the type and distribution of plasma lipoproteins induced by cholesterol feeding were as follows: (a) the occurrence of beta-migrating lipoproteins (B-VLDL) as well as very low density lipoproteins in the d less than 1.006 ultracentrifugal fraction; (b) an increased prominence of the intermediate lipoproteins (d = 1.006-1.02); (c) an increased prominence of low density lipoproteins; and (d) the occurrence of a distinctive lipoprotein with alpha mobility which was referred to as HDLc (cholesterol induced). Characterization of the various plasma lipoproteins included chemical composition, size by electron microscopy, and apoprotein content. The B-VLDL resembled the beta-migrating lipoproteins of human Type III hyperlipoproteinemia and contained a prominent protein equivalent to the arginine-rich apoprotein in addition to the B apoprotein, apo-A-I, and the fast-migrating apoproteins (apo-C). The HDLc were rich in cholesterol, ranged in size from 100 to 240 A in diameter, and contained the arginine-rich apoprotein and apo-A0I but lacked the B apoprotein. The arginine-rich apoproteins isolated from B-VLDL and HDLc by gel chromatography were similar in amino acid analyses, with glutamic acid as their amino-terminal residue. The occurrence of a spectrum of cholesterol-rich lipoproteins which contained the arginine-rich apoprotein with the occurrence of accelerated atherosclerosis suggested an interesting, although speculative, association.
Authors:
R W Mahley; K H Weisgraber; T Innerarity; H B Brewer; G Assmann
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Biochemistry     Volume:  14     ISSN:  0006-2960     ISO Abbreviation:  Biochemistry     Publication Date:  1975 Jul 
Date Detail:
Created Date:  1975-11-08     Completed Date:  1975-11-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370623     Medline TA:  Biochemistry     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  2817-23     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Amino Acids / analysis
Animals
Apoproteins / analysis,  blood*
Arginine / analysis
Arteriosclerosis / blood*
Cholesterol / blood
Cholesterol, Dietary*
Chromatography, Gel
Electrophoresis, Polyacrylamide Gel
Hypercholesterolemia / blood
Lipoproteins / blood*
Lipoproteins, HDL / blood
Lipoproteins, LDL / blood
Lipoproteins, VLDL / blood
Swine
Triglycerides / blood
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Apoproteins; 0/Cholesterol, Dietary; 0/Lipoproteins; 0/Lipoproteins, HDL; 0/Lipoproteins, LDL; 0/Lipoproteins, VLDL; 0/Triglycerides; 57-88-5/Cholesterol; 74-79-3/Arginine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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