Cited by 598Drug Transport and Resistance MechanismsGut microbiota and healthCholesterol and Lipid Metabolism

Intestinal transport and metabolism of bile acids

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Dawson, Paul A., Karpen, Saul J.·2015·Journal of Lipid Research

Abstract

In addition to their classical roles as detergents to aid in the process of digestion, bile acids have been identified as important signaling molecules that function through various nuclear and G protein-coupled receptors to regulate a myriad of cellular and molecular functions across both metabolic and nonmetabolic pathways. Signaling via these pathways will vary depending on the tissue and the concentration and chemical structure of the bile acid species. Important determinants of the size and composition of the bile acid pool are their efficient enterohepatic recirculation, their host and microbial metabolism, and the homeostatic feedback mechanisms connecting hepatocytes, enterocytes, and the luminal microbiota. This review focuses on the mammalian intestine, discussing the physiology of bile acid transport, the metabolism of bile acids in the gut, and new developments in our understanding of how intestinal metabolism, particularly by the gut microbiota, affects bile acid signaling.

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Crossref · 10.1194/jlr.r054114

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  • Primary bile acids, cholic acid and chenodeoxycholic acid, are transported into the gut through the enterohepatic circulation system and are further metabolized by gut microbiota by dehydroxylation, dehydrogenation, and epimerization to generate secondary bile acids.

    “These primary bile acids, cholic acid and chenodeoxycholic acid (CDCA), are transported into the gut through the enterohepatic circulation system and are further metabolized by gut microbiota by dehydroxylation, dehydrogenation, and epimerization to generate secondary bile acids reviewed previously.102”

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Authors
Dawson, P. A., & Karpen, S. J.
Affiliations
Emory University (US)
Corresponding author
Dawson, Paul A.
Venue
Journal of Lipid Research
Publisher
Elsevier BV
Published
2015-06
Volume
56
Issue
6
Pages
1085-1099
ISSN
0022-2275 (ISSN-L)
OpenAlex
W2316224242
Cited by
598
References
246
Citations by year
2026: 59 · 2025: 80 · 2024: 72 · 2023: 51 · 2022: 65 · 2021: 64 · 2020: 59 · 2019: 43 · 2018: 43 · 2017: 31 · 2016: 20 · 2015: 10 · 2014: 1
FWCI
2.35
Type
journal article
Language
en
Open access
Locations
  • Journal of Lipid Research (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (R01DK056239, R29DK047987, DK056239, DK-047987, R01DK047987)
Topics
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
Keywords
bile acids, bile acid metabolism, enterohepatic circulation, gut microbiota, bile acid signaling, nuclear receptors, G protein-coupled receptors, intestinal homeostasis, host-microbe interactions
MeSH terms
Animals, Bile Acids and Salts, Enterohepatic Circulation, Homeostasis, Intestinal Mucosa, Signal Transduction, Hepatocytes, Receptors, G-Protein-Coupled, Lipid Metabolism, Microbiota

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