The Crosstalk between Hypoxia and Innate Immunity in the Development of Obesity-Related Nonalcoholic Fatty Liver Disease
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AuthorArias Loste, María Teresa; Fábrega García, Emilio; López Hoyos, Marcos; Crespo García, Javier
Nonalcoholic fatty liver disease (NAFLD) has become a major health issue in western countries in parallel with the dramatic increase in the prevalence of obesity and all obesity related conditions, including respiratory diseases as obstructive sleep apneahypopnea syndrome (OSAHS). Interestingly, the severity of the liver damage in obesity-relatedNAFLD has been associatedwith the concomitant presence of OSAHS. In the presence of obesity, the proinflammatory state in these patients together with intermittent episodes of hypoxia, characteristic of OSAHS pathogenesis,may lead to an enhanced inflammatory response mediated by a positive feedback loop mechanism that implicates HIF-1 and NF????.Thus, the severity of liver involvement in obese NAFLD patients with a concomitant diagnosis of OSAHS could be explained. In this review, we focus on the molecularmechanisms underlying the hepatic response to chronic intermittent hypoxia and its interaction with innate immunity in obesity-related NAFLD.