OSAS-Related Inflammatory Mechanisms of Liver Injury in Nonalcoholic Fatty Liver Disease

Obstructive sleep apnoea syndrome (OSAS) is a common sleep disorder, affecting over 4% of the general population, and is associated with metabolic syndrome and cardiovascular disease, independent of obesity and traditional risk factors. OSAS has been recently connected to nonalcoholic fatty liver di...

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Main Authors: Elena Paschetta, Paola Belci, Anna Alisi, Daniela Liccardo, Renato Cutrera, Giovanni Musso, Valerio Nobili
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/2015/815721
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author Elena Paschetta
Paola Belci
Anna Alisi
Daniela Liccardo
Renato Cutrera
Giovanni Musso
Valerio Nobili
author_facet Elena Paschetta
Paola Belci
Anna Alisi
Daniela Liccardo
Renato Cutrera
Giovanni Musso
Valerio Nobili
author_sort Elena Paschetta
collection DOAJ
description Obstructive sleep apnoea syndrome (OSAS) is a common sleep disorder, affecting over 4% of the general population, and is associated with metabolic syndrome and cardiovascular disease, independent of obesity and traditional risk factors. OSAS has been recently connected to nonalcoholic fatty liver disease (NAFLD), the most common chronic liver disease in the world, which can be found in 30% of the general adult population. Several studies suggest that the chronic intermittent hypoxia (CIH) of OSAS patients may per se trigger liver injury, inflammation, and fibrogenesis, promoting NAFLD development and the progression from steatosis to steatohepatitis, cirrhosis, and hepatocellular carcinoma. In NAFLD patients, liver disease may be caused by hypoxia both indirectly by promoting inflammation and insulin resistance and directly by enhancing proinflammatory cytokine production and metabolic dysregulation in liver cells. In this review, we focus on molecular mechanisms linking OSAS to NAFLD, including hypoxia inducible factor (HIF), nuclear factor kappa B (NF-κB), YKL-40, unfolded protein response, and hypoxic adipose tissue inflammation, which all could provide novel potential therapeutic approaches for the management of NAFLD patients with OSAS.
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spelling doaj-art-c0d618facfba41018a92f3c88804247f2025-02-03T01:02:40ZengWileyMediators of Inflammation0962-93511466-18612015-01-01201510.1155/2015/815721815721OSAS-Related Inflammatory Mechanisms of Liver Injury in Nonalcoholic Fatty Liver DiseaseElena Paschetta0Paola Belci1Anna Alisi2Daniela Liccardo3Renato Cutrera4Giovanni Musso5Valerio Nobili6Gradenigo Hospital, University of Turin, Corso Regina Margherita, 10132 Turin, ItalyDepartment of Medical Sciences, San Giovanni Battista Hospital, University of Turin, Corso Bramante 14, 10124 Turin, ItalyHepato-Metabolic Disease Unit, Bambino Gesù Children’s Hospital and IRCCS, S. Onofrio Square 4, 00165 Rome, ItalyHepato-Metabolic Disease Unit, Bambino Gesù Children’s Hospital and IRCCS, S. Onofrio Square 4, 00165 Rome, ItalyPneumology Unit, Sleep and Noninvasive Ventilation Laboratory, Bambino Gesù Children’s Hospital and IRCCS, S. Onofrio Square 4, 00165 Rome, ItalyGradenigo Hospital, University of Turin, Corso Regina Margherita, 10132 Turin, ItalyHepato-Metabolic Disease Unit, Bambino Gesù Children’s Hospital and IRCCS, S. Onofrio Square 4, 00165 Rome, ItalyObstructive sleep apnoea syndrome (OSAS) is a common sleep disorder, affecting over 4% of the general population, and is associated with metabolic syndrome and cardiovascular disease, independent of obesity and traditional risk factors. OSAS has been recently connected to nonalcoholic fatty liver disease (NAFLD), the most common chronic liver disease in the world, which can be found in 30% of the general adult population. Several studies suggest that the chronic intermittent hypoxia (CIH) of OSAS patients may per se trigger liver injury, inflammation, and fibrogenesis, promoting NAFLD development and the progression from steatosis to steatohepatitis, cirrhosis, and hepatocellular carcinoma. In NAFLD patients, liver disease may be caused by hypoxia both indirectly by promoting inflammation and insulin resistance and directly by enhancing proinflammatory cytokine production and metabolic dysregulation in liver cells. In this review, we focus on molecular mechanisms linking OSAS to NAFLD, including hypoxia inducible factor (HIF), nuclear factor kappa B (NF-κB), YKL-40, unfolded protein response, and hypoxic adipose tissue inflammation, which all could provide novel potential therapeutic approaches for the management of NAFLD patients with OSAS.http://dx.doi.org/10.1155/2015/815721
spellingShingle Elena Paschetta
Paola Belci
Anna Alisi
Daniela Liccardo
Renato Cutrera
Giovanni Musso
Valerio Nobili
OSAS-Related Inflammatory Mechanisms of Liver Injury in Nonalcoholic Fatty Liver Disease
Mediators of Inflammation
title OSAS-Related Inflammatory Mechanisms of Liver Injury in Nonalcoholic Fatty Liver Disease
title_full OSAS-Related Inflammatory Mechanisms of Liver Injury in Nonalcoholic Fatty Liver Disease
title_fullStr OSAS-Related Inflammatory Mechanisms of Liver Injury in Nonalcoholic Fatty Liver Disease
title_full_unstemmed OSAS-Related Inflammatory Mechanisms of Liver Injury in Nonalcoholic Fatty Liver Disease
title_short OSAS-Related Inflammatory Mechanisms of Liver Injury in Nonalcoholic Fatty Liver Disease
title_sort osas related inflammatory mechanisms of liver injury in nonalcoholic fatty liver disease
url http://dx.doi.org/10.1155/2015/815721
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