Cited by 261Lipid metabolism and disordersLipoproteins and Cardiovascular HealthCholesterol and Lipid Metabolism

Different patterns of postprandial lipoprotein metabolism in normal, type IIa, type III, and type IV hyperlipoproteinemic individuals. Effects of treatment with cholestyramine and gemfibrozil.

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Weintraub, M S, Eisenberg, S, Breslow, J L·1987·Journal of Clinical Investigation

Abstract

To study exogenous fat metabolism, we used the vitamin A-fat loading test, which specifically labels intestinally derived lipoproteins with retinyl palmitate (RP). Postprandial RP concentrations were followed in total plasma, and chylomicron (Sf greater than 1,000) and nonchylomicron (Sf less than 1,000) fractions. In normal subjects postprandial lipoproteins were present for more than 14 h, and chylomicron levels correlated inversely with lipoprotein lipase activity and fasting high density lipoprotein (HDL) cholesterol levels and nonchylomicron levels correlated inversely with hepatic triglyceride lipase activity. The main abnormality in type IV patients was a 5.6-fold increase in the chylomicron fraction, whereas in type III patients it was a 6.4-fold increase in nonchylomicrons. Type IIa patients had abnormally low chylomicron fractions. In type IV patients gemfibrozil decreased, whereas in type IIa patients cholestyramine increased the chylomicron fraction 66 and 88%, respectively. This study demonstrates an unexpectedly large magnitude and long duration of postprandial lipemia in normal subjects and patients. These particles are potentially atherogenic, and their role in human atherosclerosis warrants further study.

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  • Increased circulating chylomicron-remnant particles are preferentially taken up by the liver by a receptor-mediated process, resulting in nonalcoholic fatty liver disease and hepatic insulin resistance.

    “Increased concentrations of circulating chylomicron-remnant particles are then preferentially taken up by the liver by means of a receptor-mediated process,18–22 resulting in non-alcoholic fatty liver disease and hepatic insulin resistance.”

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Research works printed but not linked: 4

  1. [10]10. Redgrave, T. G. 1984. Postprandial remnants and their relation to atherosclerosis. In Latent Dyslipoproteinemias and Atherosclerosis. J. L. DeGennes, J. Polonovski, and R. Paoletti, editors. Raven Press, New York. 9–15.
  2. [25]25. Lindgren, F. T., L. C. Jensen, and F. T. Hatch. 1972. The isolation and quantitative analysis of serum lipoproteins in blood lipids and lipoproteins. In Quantitation, Composition and Metabolism. G. S. Nelson, editor. Wiley Interscience, New York. 181–274.
  3. [31]31. Schoefe, G. I., and J. E. French. 1968. Vascular permeability to pdats e mo pams amay gland and of lung. Proc. R. Soc. (Biol.). 169:153–165.
  4. [46]46. Ehnholm, C., R. W. Mahley, D. A. Chappel, K. H. Weisgraber, E. Ludwig, and J. L. Witztum. 1984. Role of apolipoprotein E in the ipon l lw in o po lnsiy lipoproteins in type III hyperlipoproteinemia. Proc. Natl. Acad. Sci. USA. 81:5566-5570.

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Authors
Weintraub, M. S., Eisenberg, S., & Breslow, J. L.
Affiliations
  • Rockefeller University (US)
  • Hadassah Medical Center (IL)
Venue
Journal of Clinical Investigation
Published
1987-04-01
Volume
79
Issue
4
Pages
1110-1119
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2156066000
Cited by
261
References
60
Citations by year
2024: 1 · 2023: 1 · 2022: 5 · 2020: 1 · 2017: 1 · 2016: 1 · 2014: 1 · 2013: 4 · 2012: 2
FWCI
10.27
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Pew Charitable Trusts
  • American Heart Association
  • National Institutes of Health
  • National Institute on Aging (AG 04727)
  • National Heart, Lung, and Blood Institute (HL 33714, HL32435)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
Keywords
postprandial lipemia, lipoprotein metabolism, chylomicrons, type IV hyperlipoproteinemia, type III hyperlipoproteinemia, type IIa hyperlipoproteinemia, cholestyramine, gemfibrozil, lipoprotein lipase, hepatic lipase, atherosclerosis, atherogenic lipoproteins
MeSH terms
Cholestyramine Resin, Chylomicrons, Dietary Fats, Female, Humans, Hyperlipoproteinemia Type II, Hyperlipoproteinemia Type III, Hyperlipoproteinemia Type IV, Lipoproteins, Male, Pentanoic Acids, Triglycerides, Valerates, Vitamin A, Gemfibrozil

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