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Mucosal Barrier Defects in Functional Dyspepsia by Confocal Laser Endomicroscopy

2014-08-27 03:18:15 | BioPortfolio

Summary

There has been recent interest into the potential role of mucosal barrier defects in the pathophysiology of functional gastrointestinal disorders (FGIDs). There has been evidence of increased intestinal permeability in patients of IBS,and abnormal tissue resistance in NERD. Although the mucosa of Functional dyspepsia (FD) patients is endoscopically and histologically "normal," it contains ultrastructural changes, activated immune cells, along with evidence of an increased release of mediators leading to gastric dysfunction. There is now consistent evidence indicating that mucosal barrier defects allow the passage of an increased load of bacteria, antigens and toxins which, in turn evoke activation of mucosal immune responses involved in the FD symptom.

Description

Confocal laser endomicrosopy is a newly developed device which allows in vivo and real time observation of gastrointestinal mucosa.In our pilot study we found that the contrast agent fluorescein sodium shew differences of leakage into intercellular spaces and crypt lumen among different patients of FD.

This study is aimed to determine if there is microscopic changes detectable in the gastric mucosal epithelium through confocal endomicroscopy of FD patients, and to evaluate the relationship among minimal changes(transmission electron microscopy and Confocal laser endomicrosopy ), FD symptoms(symptom index form) , neuropeptides and immune responses(immunohistochemistry).

Study Design

Observational Model: Case Control, Time Perspective: Prospective

Conditions

Functional Dyspepsia

Location

Department of Gastroenterology, Qilu Hospital, Shandong University
Jinan
Shandong
China
250012

Status

Recruiting

Source

Shandong University

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:18:15-0400

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Medical and Biotech [MESH] Definitions

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Impaired digestion, especially after eating.

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Any of the DNA in between gene-coding DNA, including untranslated regions, 5' and 3' flanking regions, INTRONS, non-functional pseudogenes, and non-functional repetitive sequences. This DNA may or may not encode regulatory functions.

A chronic inflammation in which the NASAL MUCOSA gradually changes from a functional to a non-functional lining without mucociliary clearance. It is often accompanied by degradation of the bony TURBINATES, and the foul-smelling mucus which forms a greenish crust (ozena).

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