| Bile acids: chemistry, physiology, and pathophysiology. | |
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MedLine Citation:
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PMID: 19230041 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The family of bile acids includes a group of molecular species of acidic steroids with very peculiar physical-chemical and biological characteristics. They are synthesized by the liver from cholesterol through several complementary pathways that are controlled by mechanisms involving fine-tuning by the levels of certain bile acid species. Although their best-known role is their participation in the digestion and absorption of fat, they also play an important role in several other physiological processes. Thus, genetic abnormalities accounting for alterations in their synthesis, biotransformation and/or transport may result in severe alterations, even leading to lethal situations for which the sole therapeutic option may be liver transplantation. Moreover, the increased levels of bile acids reached during cholestatic liver diseases are known to induce oxidative stress and apoptosis, resulting in damage to the liver parenchyma and, eventually, extrahepatic tissues. When this occurs during pregnancy, the outcome of gestation may be challenged. In contrast, the physical-chemical and biological properties of these compounds have been used as the bases for the development of drugs and as pharmaceutical tools for the delivery of active agents. |
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Authors:
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Maria J Monte; Jose J G Marin; Alvaro Antelo; Jose Vazquez-Tato |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Review |
Journal Detail:
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Title: World journal of gastroenterology : WJG Volume: 15 ISSN: 1007-9327 ISO Abbreviation: World J. Gastroenterol. Publication Date: 2009 Feb |
Date Detail:
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Created Date: 2009-02-20 Completed Date: 2009-05-20 Revised Date: 2010-09-23 |
Medline Journal Info:
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Nlm Unique ID: 100883448 Medline TA: World J Gastroenterol Country: China |
Other Details:
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Languages: eng Pagination: 804-16 Citation Subset: IM |
Affiliation:
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Laboratory of Experimental Hepatology and Drug Targeting, CIBERehd, University of Salamanca, Salamanca 37007, Spain. mjmonte@usal.es |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Bile
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secretion Bile Acids and Salts / biosynthesis, chemistry*, physiology* Biological Transport Cholestasis / genetics, metabolism Cholesterol / metabolism Cholesterol 7-alpha-Hydroxylase Dietary Fats / metabolism Homeostasis Humans Intestinal Absorption Liver / physiology* Models, Molecular Peroxisomes / genetics, metabolism Sterols / metabolism Vitamins / metabolism |
| Chemical | |
Reg. No./Substance:
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0/Bile Acids and Salts; 0/Dietary Fats; 0/Sterols; 0/Vitamins; 57-88-5/Cholesterol; EC 1.14.13.17/Cholesterol 7-alpha-Hydroxylase; EC 1.14.13.17/cytochrome P450 7A1, mouse |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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