| 1 | Association between non-alcoholic fatty liver disease and obstructive sleep apnea显示文摘BACKGROUND Non-alcoholic fatty liver disease(NAFLD)is an emerging liver disease and currently the most common cause of incidental abnormal liver tests.The pathogenesis of NAFLD is multifactorial and many mechanisms that cause fatty liver infiltration,inflammation,oxidative stress and progressive fibrosis have been proposed.Obstructive sleep apnea(OSA)may be linked with the pathogenesis and the severity of NAFLD.AIM To study the association between NAFLD and OSA considering also the efficacy of continuous positive airway pressure(CPAP)treatment.METHODS A Pub Med search was conducted using the terms'non-alcoholic fatty liver disease AND(obstructive sleep apnea OR obstructive sleep disorders OR sleep apnea)'.Research was limited to title/abstract of articles published in English in the last 5 years;animal and child studies,case reports,commentaries,letters,editorials and meeting abstracts were not considered.Data were extracted on a standardized data collection table which included:First author,publication year,country,study design,number of patients involved,diagnosis and severity of OSA,diagnosis of NAFLD,patient characteristics,results of the study.RESULTSIn total,132 articles were initially retrieved on Pub Med search and 77 in the last five years.After removal of irrelevant studies,13 articles were included in the qualitative analysis.There was a total of 2753 participants across all the studies with a mean age between 42 and 58 years.The proportion of males ranged from21%to 87.9%and the mean body mass index ranged from 24.0 to 49.9 kg/m2.The results of this review showed an increased prevalence of NAFLD in patients with diagnosis of OSA,even in the absence of coexisting comorbidities such as obesity or metabolic syndrome.Furthermore,the severity of NAFLD is associated with the increase in OSA severity.Effective CPAP treatment,although not always decisive,may stabilize or slow NAFLD progression with benefits on metabolic and cardiovascular functions.CONCLUSION In NAFLD patients,although asymptomatic,it is recommended to systematically perform polysomnography in order to early and better treat them before the development of potentially life threatening systemic dysfunctions. | Ilaria Umbro Valerio Fabiani Mario Fabiani Francesco Angelico Maria Del Ben | 2020 | World Journal of Gastroenterology2020，26，20： | 10 |
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