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Gastroenterology. 2021 Aug;161(2):463-475.e13. doi: 10.1053/j.gastro.2021.04.020. Epub 2021 Apr 16.

Development and Validation of Test for "Leaky Gut" Small Intestinal and Colonic Permeability Using Sugars in Healthy Adults.

Gastroenterology

Katayoun Khoshbin, Lehar Khanna, Daniel Maselli, Jessica Atieh, Margaret Breen-Lyles, Kayla Arndt, Deborah Rhoten, Roy B Dyer, Ravinder J Singh, Sunita Nayar, Sandra Bjerkness, William S Harmsen, Irene Busciglio, Michael Camilleri

Affiliations

  1. Clinical Enteric NeuroscienceTranslational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota.
  2. Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota.
  3. Clinical Research and Trials Unit, Mayo Clinic, Rochester, Minnesota.
  4. Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota.
  5. Clinical Enteric NeuroscienceTranslational and Epidemiological Research (CENTER), Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota. Electronic address: [email protected].

PMID: 33865841 PMCID: PMC8328885 DOI: 10.1053/j.gastro.2021.04.020

Abstract

BACKGROUND: Oral monosaccharides and disaccharides are used to measure in vivo human gut permeability through urinary excretion.

AIMS: The aims were as follows: (1) to obtain normative data on small intestinal and colonic permeability; (2) to assess variance on standard 16 g fiber diet performed twice; (3) to determine whether dietary fiber influences gut permeability measurements; and (4) to present pilot data using 2 selected probes in patients with diarrhea-predominant irritable bowel syndrome (IBS-D).

METHODS: Sixty healthy female and male adults, age 18-70 years, participated in 3 randomized studies (2 studies on 16.25 g and 1 study on 32.5 g fiber) in otherwise standardized diets. At each test, the following sugars were ingested:

RESULTS: Baseline sugars (>3-fold above lower limits of quantitation) were identified in the 3 studies:

CONCLUSIONS: Baseline

Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.

Keywords: Barrier; Lactulose; Mannitol; Sucralose

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