Abnormal bile acid absorption in familial hypertriglyceridemia

To better define the abnormality of bile acid metabolism associated with hypertriglyceridemia, we measured bile acid kinetics and absorption as well as preferential use of newly synthesized cholesterol for bile acid synthesis in eleven controls and ten subjects with hypertriglyceridemia, six of whom...

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Main Author: W C Duane
Format: Article
Language:English
Published: Elsevier 1995-01-01
Series:Journal of Lipid Research
Online Access:http://www.sciencedirect.com/science/article/pii/S0022227520397583
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author W C Duane
author_facet W C Duane
author_sort W C Duane
collection DOAJ
description To better define the abnormality of bile acid metabolism associated with hypertriglyceridemia, we measured bile acid kinetics and absorption as well as preferential use of newly synthesized cholesterol for bile acid synthesis in eleven controls and ten subjects with hypertriglyceridemia, six of whom could be classified as having familial hypertriglyceridemia (FHT). Fractional turnover rates of cholic acid and chenodeoxycholic acid were both significantly elevated in hypertriglyceridemic subjects to nearly twice the rates in controls. Bile acid synthesis was also significantly higher in hypertriglyceridemic subjects while bile acid pools were either unchanged or somewhat reduced. Consistent with these kinetics, bile acid absorption was significantly lower in hypertriglyceridemic subjects than in controls. Overall only 10-12% of bile acid was derived from newly synthesized cholesterol, and hypertriglyceridemic subjects did not differ from controls. Because hypertriglyceridemia should not alter bile acid absorption, these results are consistent with the previously suggested possibility (B. Angelin, K. S. Hershon, and J. D. Brunzell, 1987. Proc. Natl. Acad. Sci. USA. 84: 5434-5438) that impaired bile acid absorption may be a primary defect in some patients with hypertriglyceridemia.
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spelling doaj.art-6aa7445e26e14dfe8a2ed45320c6fe182022-12-21T21:35:54ZengElsevierJournal of Lipid Research0022-22751995-01-0136196107Abnormal bile acid absorption in familial hypertriglyceridemiaW C Duane0Department of Medicine, Veterans Affairs Medical Center, Minneapolis, MN 55417.To better define the abnormality of bile acid metabolism associated with hypertriglyceridemia, we measured bile acid kinetics and absorption as well as preferential use of newly synthesized cholesterol for bile acid synthesis in eleven controls and ten subjects with hypertriglyceridemia, six of whom could be classified as having familial hypertriglyceridemia (FHT). Fractional turnover rates of cholic acid and chenodeoxycholic acid were both significantly elevated in hypertriglyceridemic subjects to nearly twice the rates in controls. Bile acid synthesis was also significantly higher in hypertriglyceridemic subjects while bile acid pools were either unchanged or somewhat reduced. Consistent with these kinetics, bile acid absorption was significantly lower in hypertriglyceridemic subjects than in controls. Overall only 10-12% of bile acid was derived from newly synthesized cholesterol, and hypertriglyceridemic subjects did not differ from controls. Because hypertriglyceridemia should not alter bile acid absorption, these results are consistent with the previously suggested possibility (B. Angelin, K. S. Hershon, and J. D. Brunzell, 1987. Proc. Natl. Acad. Sci. USA. 84: 5434-5438) that impaired bile acid absorption may be a primary defect in some patients with hypertriglyceridemia.http://www.sciencedirect.com/science/article/pii/S0022227520397583
spellingShingle W C Duane
Abnormal bile acid absorption in familial hypertriglyceridemia
Journal of Lipid Research
title Abnormal bile acid absorption in familial hypertriglyceridemia
title_full Abnormal bile acid absorption in familial hypertriglyceridemia
title_fullStr Abnormal bile acid absorption in familial hypertriglyceridemia
title_full_unstemmed Abnormal bile acid absorption in familial hypertriglyceridemia
title_short Abnormal bile acid absorption in familial hypertriglyceridemia
title_sort abnormal bile acid absorption in familial hypertriglyceridemia
url http://www.sciencedirect.com/science/article/pii/S0022227520397583
work_keys_str_mv AT wcduane abnormalbileacidabsorptioninfamilialhypertriglyceridemia