title: Dysbiosis in gastrointestinal disorders.
abstract: The recent development of advanced sequencing techniques has revealed the complexity and diverse functions of the gut microbiota. Furthermore, alterations in the composition or balance of the intestinal microbiota, or dysbiosis, are associated with many gastrointestinal diseases. The looming question is whether dysbiosis is a cause or effect of these diseases. In this review, we will evaluate the contribution of intestinal microbiota in obesity, fatty liver, inflammatory bowel disease, and irritable bowel syndrome. Promising results from microbiota or metabolite transfer experiments in animals suggest the microbiota may be sufficient to reproduce disease features in the appropriate host in certain disorders. Less compelling causal associations may reflect complex, multi-factorial disease pathogenesis, in which dysbiosis is a necessary condition. Understanding the contributions of the microbiota in GI diseases should offer novel insight into disease pathophysiology and deliver new treatment strategies such as therapeutic manipulation of the microbiota.
authors.affiliation: New Mexico VA Health Care System, Division of Gastroenterology and Hepatology, University of New Mexico School of Medicine, United States. Electronic address: CChang1@salud.unm.edu.
authors.forename: Christopher
authors.initials: C
authors.lastname: Chang
authors.affiliation: New Mexico VA Health Care System, Division of Gastroenterology and Hepatology, University of New Mexico School of Medicine, United States. Electronic address: HELin@salud.unm.edu.
authors.forename: Henry
authors.initials: H
authors.lastname: Lin
mesh_terms: D000818:Animals; D004032:Diet; D064806:Dysbiosis / Q000382:microbiology* / Q000503:physiopathology; D005767:Gastrointestinal Diseases / Q000382:microbiology* / Q000503:physiopathology; D000069196:Gastrointestinal Microbiome / Q000502:physiology; D006801:Humans
keywords: Dysbiosis; Inflammatory bowel disease; Irritable bowel syndrome; Metabolomics; Metagenomics; Microbiome; Microbiota; Nonalcoholic fatty liver disease; Obesity