The Role of Leaky Gut in Functional Dyspepsia

Patients with functional dyspepsia (FD) complain of epigastric symptoms with no identifiable cause. Increased intestinal permeability has been described in these patients, especially in the proximal small bowel or duodenum, and was associated with mucosal immune activation and symptoms. In this revi...

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Main Authors: Lucas Wauters, Matthias Ceulemans, Jolien Schol, Ricard Farré, Jan Tack, Tim Vanuytsel
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-03-01
Series:Frontiers in Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnins.2022.851012/full
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author Lucas Wauters
Lucas Wauters
Matthias Ceulemans
Jolien Schol
Jolien Schol
Ricard Farré
Jan Tack
Jan Tack
Tim Vanuytsel
Tim Vanuytsel
author_facet Lucas Wauters
Lucas Wauters
Matthias Ceulemans
Jolien Schol
Jolien Schol
Ricard Farré
Jan Tack
Jan Tack
Tim Vanuytsel
Tim Vanuytsel
author_sort Lucas Wauters
collection DOAJ
description Patients with functional dyspepsia (FD) complain of epigastric symptoms with no identifiable cause. Increased intestinal permeability has been described in these patients, especially in the proximal small bowel or duodenum, and was associated with mucosal immune activation and symptoms. In this review, we discuss duodenal barrier function, including techniques currently applied in FD research. We summarize the available data on duodenal permeability in FD and factors associated to increased permeability, including mucosal eosinophils, mast cells, luminal and systemic factors. While the increased influx of antigens into the duodenal mucosa could result in local immune activation, clinical evidence for a causal role of permeability is lacking in the absence of specific barrier-protective treatments. As both existing and novel treatments, including proton pump inhibitors (PPI) and pre- or probiotics may impact duodenal barrier function, it is important to recognize and study these alterations to improve the knowledge and management of FD.
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spelling doaj.art-6a547635e0ba4094a7fcc3d3653ddfe02022-12-21T21:17:43ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2022-03-011610.3389/fnins.2022.851012851012The Role of Leaky Gut in Functional DyspepsiaLucas Wauters0Lucas Wauters1Matthias Ceulemans2Jolien Schol3Jolien Schol4Ricard Farré5Jan Tack6Jan Tack7Tim Vanuytsel8Tim Vanuytsel9Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, BelgiumTranslational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, BelgiumTranslational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, BelgiumDepartment of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, BelgiumTranslational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, BelgiumTranslational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, BelgiumDepartment of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, BelgiumTranslational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, BelgiumDepartment of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, BelgiumTranslational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, BelgiumPatients with functional dyspepsia (FD) complain of epigastric symptoms with no identifiable cause. Increased intestinal permeability has been described in these patients, especially in the proximal small bowel or duodenum, and was associated with mucosal immune activation and symptoms. In this review, we discuss duodenal barrier function, including techniques currently applied in FD research. We summarize the available data on duodenal permeability in FD and factors associated to increased permeability, including mucosal eosinophils, mast cells, luminal and systemic factors. While the increased influx of antigens into the duodenal mucosa could result in local immune activation, clinical evidence for a causal role of permeability is lacking in the absence of specific barrier-protective treatments. As both existing and novel treatments, including proton pump inhibitors (PPI) and pre- or probiotics may impact duodenal barrier function, it is important to recognize and study these alterations to improve the knowledge and management of FD.https://www.frontiersin.org/articles/10.3389/fnins.2022.851012/fullfunctional dyspepsiapermeabilityimmunologyduodenumgut-brain-axis
spellingShingle Lucas Wauters
Lucas Wauters
Matthias Ceulemans
Jolien Schol
Jolien Schol
Ricard Farré
Jan Tack
Jan Tack
Tim Vanuytsel
Tim Vanuytsel
The Role of Leaky Gut in Functional Dyspepsia
Frontiers in Neuroscience
functional dyspepsia
permeability
immunology
duodenum
gut-brain-axis
title The Role of Leaky Gut in Functional Dyspepsia
title_full The Role of Leaky Gut in Functional Dyspepsia
title_fullStr The Role of Leaky Gut in Functional Dyspepsia
title_full_unstemmed The Role of Leaky Gut in Functional Dyspepsia
title_short The Role of Leaky Gut in Functional Dyspepsia
title_sort role of leaky gut in functional dyspepsia
topic functional dyspepsia
permeability
immunology
duodenum
gut-brain-axis
url https://www.frontiersin.org/articles/10.3389/fnins.2022.851012/full
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