Changes in plasma apolipoproteins A-I, A-II, and B, and lipoprotein cholesterol after jejunoileal bypass

Ronald B Goldberg, Richard B. Weinberg, Richard L. Landau

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In view of the role of the small intestine in lipoprotein synthesis and bile salt reabsorption, we have determined plasma lipid fractions and apolipoproteins A-I, A-II, and B at regular intervals in 26 patients who underwent jejunoileal bypass surgery for morbid obesity. After surgery, no change in plasma triglycerides was noted, but there was a prompt and significant fall in total plasma cholesterol and low density lipoprotein cholesterol, which persisted beyond 2 yr. Plasma apolipoprotein B levels did not fall concurrently, and hence the protein/lipid composition of low density lipoprotein was permanently altered by the surgery. Levels of high density Jipoprotein cholesterol were low before bypass surgery, decreased after surgery, and rose thereafter toward the normal range. Similar changes in apolipoprotein A-I and A-II values were noted. These postoperative alterations in plasma lipid and apoprotein levels demonstrate the importance of intestinal absorptive integrity in the regulation of lipoprotein metabolism.

Original languageEnglish
Pages (from-to)732-736
Number of pages5
JournalGastroenterology
Volume84
Issue number4
StatePublished - Jan 1 1983
Externally publishedYes

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Jejunoileal Bypass
Apolipoprotein A-I
Lipids
Lipoproteins
Cholesterol
Apoproteins
Morbid Obesity
Apolipoproteins B
Bile Acids and Salts
LDL Lipoproteins
LDL Cholesterol
Small Intestine
Reference Values
Triglycerides
lipoprotein cholesterol
Proteins

ASJC Scopus subject areas

  • Gastroenterology

Cite this

Changes in plasma apolipoproteins A-I, A-II, and B, and lipoprotein cholesterol after jejunoileal bypass. / Goldberg, Ronald B; Weinberg, Richard B.; Landau, Richard L.

In: Gastroenterology, Vol. 84, No. 4, 01.01.1983, p. 732-736.

Research output: Contribution to journalArticle

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