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Review
. 2022 Apr;33(4):247-265.
doi: 10.1016/j.tem.2022.01.002. Epub 2022 Feb 9.

Gut barrier disruption and chronic disease

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Review

Gut barrier disruption and chronic disease

Jan Martel et al. Trends Endocrinol Metab. 2022 Apr.

Abstract

The intestinal barrier protects the host against gut microbes, food antigens, and toxins present in the gastrointestinal tract. However, gut barrier integrity can be affected by intrinsic and extrinsic factors, including genetic predisposition, the Western diet, antibiotics, alcohol, circadian rhythm disruption, psychological stress, and aging. Chronic disruption of the gut barrier can lead to translocation of microbial components into the body, producing systemic, low-grade inflammation. While the association between gut barrier integrity and inflammation in intestinal diseases is well established, we review here recent studies indicating that the gut barrier and microbiota dysbiosis may contribute to the development of metabolic, autoimmune, and aging-related disorders. Emerging interventions to improve gut barrier integrity and microbiota composition are also described.

Keywords: dietary fiber; gut barrier integrity; gut microbiota; leaky gut; mucus; phytochemicals.

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Conflict of interest statement

Declaration of interests Y-F.K. is President of Chang Gung Biotechnology. J.D.Y. is Chairman of the Board of Chang Gung Biotechnology. J.M., Y-F.K., T-L.H., J.D.Y., and D.M.O. are named on patents held by Chang Gung University and/or Chang Gung Biotechnology related to the preparation and use of prebiotics, probiotics, and bioactive compounds.

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