Choline-deficiency fatty liver: impaired release of hepatic triglycerides

After intravenous injection of palmitate-1-14C to rats fed a choline-deficient (CD) or choline-supplemented (CS) diet for 15-18 hr, liver triglycerides became labeled very rapidly. In CS, but not in CD rats, there was a considerable loss, with time, of radioactivity from liver triglycerides. At the...

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Main Authors: B. Lombardi, P. Pani, F.F. Schlunk
Format: Article
Language:English
Published: Elsevier 1968-07-01
Series:Journal of Lipid Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S002222752042721X
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author B. Lombardi
P. Pani
F.F. Schlunk
author_facet B. Lombardi
P. Pani
F.F. Schlunk
author_sort B. Lombardi
collection DOAJ
description After intravenous injection of palmitate-1-14C to rats fed a choline-deficient (CD) or choline-supplemented (CS) diet for 15-18 hr, liver triglycerides became labeled very rapidly. In CS, but not in CD rats, there was a considerable loss, with time, of radioactivity from liver triglycerides. At the same time, significantly less radioactivity appeared in plasma triglycerides of CD rats than of CS animals. No difference was seen in the triglyceride content of microsomes isolated from the liver of rats fed the two diets. The lower radioactivity in plasma triglycerides of CD rats was essentially due to a lower level and specific activity of very low density lipoprotein triglycerides.After intravenous injection of Triton and labeled palmitate, considerably less radioactivity accumulated in plasma triglycerides and phospholipids of CD rats than of CS animals. Post-Triton hyperphospholipidemia was also less pronounced in CD rats.It was concluded that the fatty liver observed in CD rats results from an impaired release of hepatic triglycerides into plasma.
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spelling doaj.art-a83353d7b04b48c8bfcc7d7461bfc6282022-12-21T21:57:57ZengElsevierJournal of Lipid Research0022-22751968-07-0194437446Choline-deficiency fatty liver: impaired release of hepatic triglyceridesB. Lombardi0P. Pani1F.F. Schlunk2Department of Pathology, University of Pittsburgh, School of Medicine, Pittsburgh, Pennsylvania 15213Department of Pathology, University of Pittsburgh, School of Medicine, Pittsburgh, Pennsylvania 15213Department of Pathology, University of Pittsburgh, School of Medicine, Pittsburgh, Pennsylvania 15213After intravenous injection of palmitate-1-14C to rats fed a choline-deficient (CD) or choline-supplemented (CS) diet for 15-18 hr, liver triglycerides became labeled very rapidly. In CS, but not in CD rats, there was a considerable loss, with time, of radioactivity from liver triglycerides. At the same time, significantly less radioactivity appeared in plasma triglycerides of CD rats than of CS animals. No difference was seen in the triglyceride content of microsomes isolated from the liver of rats fed the two diets. The lower radioactivity in plasma triglycerides of CD rats was essentially due to a lower level and specific activity of very low density lipoprotein triglycerides.After intravenous injection of Triton and labeled palmitate, considerably less radioactivity accumulated in plasma triglycerides and phospholipids of CD rats than of CS animals. Post-Triton hyperphospholipidemia was also less pronounced in CD rats.It was concluded that the fatty liver observed in CD rats results from an impaired release of hepatic triglycerides into plasma.http://www.sciencedirect.com/science/article/pii/S002222752042721Xcholine deficiencyratpathogenesisfatty livertriglyceridesphospholipids
spellingShingle B. Lombardi
P. Pani
F.F. Schlunk
Choline-deficiency fatty liver: impaired release of hepatic triglycerides
Journal of Lipid Research
choline deficiency
rat
pathogenesis
fatty liver
triglycerides
phospholipids
title Choline-deficiency fatty liver: impaired release of hepatic triglycerides
title_full Choline-deficiency fatty liver: impaired release of hepatic triglycerides
title_fullStr Choline-deficiency fatty liver: impaired release of hepatic triglycerides
title_full_unstemmed Choline-deficiency fatty liver: impaired release of hepatic triglycerides
title_short Choline-deficiency fatty liver: impaired release of hepatic triglycerides
title_sort choline deficiency fatty liver impaired release of hepatic triglycerides
topic choline deficiency
rat
pathogenesis
fatty liver
triglycerides
phospholipids
url http://www.sciencedirect.com/science/article/pii/S002222752042721X
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AT ppani cholinedeficiencyfattyliverimpairedreleaseofhepatictriglycerides
AT ffschlunk cholinedeficiencyfattyliverimpairedreleaseofhepatictriglycerides