Microbial Translocation in Chronic Liver Diseases

The intestinal microflora is not only involved in the digestion of nutrients, but also in local immunity, forming a barrier against pathogenic microorganisms. The derangement of the gut microflora may lead to microbial translocation, defined as the passage of viable microorganisms or bacterial produ...

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Main Authors: Marilia Rita Pinzone, Benedetto Maurizio Celesia, Michele Di Rosa, Bruno Cacopardo, Giuseppe Nunnari
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:International Journal of Microbiology
Online Access:http://dx.doi.org/10.1155/2012/694629
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author Marilia Rita Pinzone
Benedetto Maurizio Celesia
Michele Di Rosa
Bruno Cacopardo
Giuseppe Nunnari
author_facet Marilia Rita Pinzone
Benedetto Maurizio Celesia
Michele Di Rosa
Bruno Cacopardo
Giuseppe Nunnari
author_sort Marilia Rita Pinzone
collection DOAJ
description The intestinal microflora is not only involved in the digestion of nutrients, but also in local immunity, forming a barrier against pathogenic microorganisms. The derangement of the gut microflora may lead to microbial translocation, defined as the passage of viable microorganisms or bacterial products (i.e., LPS, lipopeptides) from the intestinal lumen to the mesenteric lymph nodes and other extraintestinal sites. The most recent evidence suggests that microbial translocation (MT) may occur not only in cirrhosis, but also in the early stage of several liver diseases, including alcoholic hepatopathy and nonalcoholic fatty liver disease. Different mechanisms, such as small intestinal bacterial overgrowth, increased permeability of intestinal mucosa, and impaired immunity, may favor MT. Furthermore, MT has been implicated in the pathogenesis of the complications of cirrhosis, which are a significant cause of morbidity and mortality in cirrhotic subjects. Therapeutic strategies aiming at modulating the gut microflora and reducing MT have focused on antibiotic-based options, such as selective intestinal decontamination, and nonantibiotic-based options, such as prokinetics and probiotics. In particular, probiotics may represent an attractive strategy, even though the promising results of experimental models and limited clinical studies need to be confirmed in larger randomized trials.
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series International Journal of Microbiology
spelling doaj-art-8b7d31bf011b45b696ec8487f401d3cc2025-02-03T06:47:23ZengWileyInternational Journal of Microbiology1687-918X1687-91982012-01-01201210.1155/2012/694629694629Microbial Translocation in Chronic Liver DiseasesMarilia Rita Pinzone0Benedetto Maurizio Celesia1Michele Di Rosa2Bruno Cacopardo3Giuseppe Nunnari4Division of Infectious Diseases, Department of Clinical and Molecular Biomedicine, University of Catania, 95125 Catania, ItalyDivision of Infectious Diseases, Department of Clinical and Molecular Biomedicine, University of Catania, 95125 Catania, ItalyDivision of Infectious Diseases, Department of Clinical and Molecular Biomedicine, University of Catania, 95125 Catania, ItalyDivision of Infectious Diseases, Department of Clinical and Molecular Biomedicine, University of Catania, 95125 Catania, ItalyDivision of Infectious Diseases, Department of Clinical and Molecular Biomedicine, University of Catania, 95125 Catania, ItalyThe intestinal microflora is not only involved in the digestion of nutrients, but also in local immunity, forming a barrier against pathogenic microorganisms. The derangement of the gut microflora may lead to microbial translocation, defined as the passage of viable microorganisms or bacterial products (i.e., LPS, lipopeptides) from the intestinal lumen to the mesenteric lymph nodes and other extraintestinal sites. The most recent evidence suggests that microbial translocation (MT) may occur not only in cirrhosis, but also in the early stage of several liver diseases, including alcoholic hepatopathy and nonalcoholic fatty liver disease. Different mechanisms, such as small intestinal bacterial overgrowth, increased permeability of intestinal mucosa, and impaired immunity, may favor MT. Furthermore, MT has been implicated in the pathogenesis of the complications of cirrhosis, which are a significant cause of morbidity and mortality in cirrhotic subjects. Therapeutic strategies aiming at modulating the gut microflora and reducing MT have focused on antibiotic-based options, such as selective intestinal decontamination, and nonantibiotic-based options, such as prokinetics and probiotics. In particular, probiotics may represent an attractive strategy, even though the promising results of experimental models and limited clinical studies need to be confirmed in larger randomized trials.http://dx.doi.org/10.1155/2012/694629
spellingShingle Marilia Rita Pinzone
Benedetto Maurizio Celesia
Michele Di Rosa
Bruno Cacopardo
Giuseppe Nunnari
Microbial Translocation in Chronic Liver Diseases
International Journal of Microbiology
title Microbial Translocation in Chronic Liver Diseases
title_full Microbial Translocation in Chronic Liver Diseases
title_fullStr Microbial Translocation in Chronic Liver Diseases
title_full_unstemmed Microbial Translocation in Chronic Liver Diseases
title_short Microbial Translocation in Chronic Liver Diseases
title_sort microbial translocation in chronic liver diseases
url http://dx.doi.org/10.1155/2012/694629
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AT benedettomauriziocelesia microbialtranslocationinchronicliverdiseases
AT micheledirosa microbialtranslocationinchronicliverdiseases
AT brunocacopardo microbialtranslocationinchronicliverdiseases
AT giuseppenunnari microbialtranslocationinchronicliverdiseases