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The microorganisms inhabiting our gastrointestinal tract are critical for human health. Chronic heavy alcohol use can modulate the composition and function of the gut microbiota, thereby exacerbating end-organ damage via the gut-brain axis and the gut-liver axis. In this review, we summarize the bacterial, fungal, and viral gut microbial compositional changes associated with alcohol use and alcohol-associated liver disease and discuss the mechanisms of action by which gut dysbiosis reinforces alcohol use behavior and liver inflammation and injury. We also highlight important pre-clinical and clinical trials that target gut microbial-specific mechanisms for the treatment of alcohol use disorder and alcohol-associated liver disease.
Jew et al. (Tue,) studied this question.