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Minerva Gastroenterology 2021 Apr 19

DOI: 10.23736/S2724-5985.21.02896-5

Copyright © 2021 EDIZIONI MINERVA MEDICA

language: English

Gut microbiota and non-alcoholic fatty liver disease: a narrative review

Ludovico ABENAVOLI 1 , Anna C. PROCOPIO 1, Emidio SCARPELLINI 2, Natale POLIMENI 3, Isabella AQUILA 1, Tiziana LARUSSA 1, Luigi BOCCUTO 5, Francesco LUZZA 1

1 Department of Health Sciences, Magna Graecia University, Catanzaro, Italy; 2 Clinical Nutrition Unit and Internal Medicine Unit, Madonna del Soccorso General Hospital, San Benedetto del Tronto, Ascoli Piceno, Italy; 3 Digestive Disease Endoscopy Unit, Madonna della Consolazione Hospital, Reggio Calabria, Italy; 4 Department of Surgical and Medical Sciences, Magna Graecia University, Italy; 5 School of Nursing, College of Behavioral, Social and Health Sciences, Clemson University, Clemson, SC, USA


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The gastrointestinal tract of the adult human represents the habitat of the ecological community of commensal, symbiotic and pathogenic microorganisms, defined as the gut microbiota, which has more than 100 trillion microorganisms representing one of the most complex ecosystems. Colonization of the gastrointestinal tract by microorganisms begins at the time of birth. Contrary to what was previously hypothesized, a large number of fundamental functions for the host are attributed to the gut microbiota to date. The gut microbiota, therefore, does not represent a passive set of microbes hosted inside the human organism but plays a crucial role in the balance of the organism itself. An alteration of the microbiota is a phenomenon known as dysbiosis. The latter can be implicated in the development of complex liver diseases like non-alcoholic fatty liver disease. The aim of this review is to describe the most interesting data linking the development of non-alcoholic fatty liver disease with the gut microbiota and, therefore, to underline the importance of the microbiota itself, as a potential therapeutic target in the treatment of non-alcoholic fatty liver disease.


KEY WORDS: Gut; Diet; Phyla; Dysbiosis; Gastrointestinal tract

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