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Title

Mitochondrial dysfunction in cholestatic liver diseases

AuthorsSastre, Juan; Tormos, Ana M.; Monsalve, María
KeywordsMitochondrial function
Review
Oxidative stress
Apoptosis
Bile acids
Issue Date2012
PublisherFrontiers in Bioscience Publications
CitationFrontiers in Bioscience (Elite edition) 4: 2233-2252 (2012)
AbstractCholestatic liver diseases are characterized by blockade of bile flow from the liver to the intestine, and accumulation of hydrophobic bile acids in the liver and plasma. As a consequence an inflammatory response evolves associated with increased apoptosis, oxidative stress, and eventually fibrosis. Cholestasis is associated with profound metabolic changes, alterations in the mitochondrial function, decreased fatty acid oxidation, and increased glycolisis. Mitochondria play a central role in the development of this liver disease because they mediate death receptor signaling - triggered by inflammatory cytokines or bile acids - and contribute to oxidative damage, metabolic disorder, and onset of fibrosis. During the pathogenesis of biliary cirrhosis mitochondria's need for renewal is hampered by a blunted mitochondrial biogenesis. Lack of stimulation of mitochondrial renewal helps to explain mitochondrial impairment in long-term cholestasis. The marked depletion of mitochondrial DNA and occurrence of mitochondrial DNA deletions are probably relevant contributors to the progression of this severe disease. All these findings certainly support the consideration of long-term cholestasis as a secondary mitochondrial hepatopathy.
Descriptionet al.
Publisher version (URL)http://dx.doi.org/10.2741/539
URIhttp://hdl.handle.net/10261/152295
DOI10.2741/539
Identifiersdoi: 10.2741/539
issn: 1945-0494
e-issn: 1945-0508
Appears in Collections:(IIBM) Artículos
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