Pathophysiology of IBD associated diarrhea

AN Anbazhagan, S Priyamvada, WA Alrefai… - Tissue …, 2018 - Taylor & Francis
Inflammatory bowel diseases broadly categorized into Crohn's disease (CD) and ulcerative
colitis (UC), are chronic inflammatory disorders of the gastrointestinal tract with increasing …

[HTML][HTML] Role of the intestinal barrier in inflammatory bowel disease

MG Laukoetter, P Nava, A Nusrat - World journal of …, 2008 - ncbi.nlm.nih.gov
A critical function of the intestinal mucosa is to form a barrier that separates luminal contents
from the interstitium. The single layer of intestinal epithelial cells (IECs) serves as a dynamic …

Changes in expression and distribution of claudin 2, 5 and 8 lead to discontinuous tight junctions and barrier dysfunction in active Crohn's disease

S Zeissig, N Bürgel, D Günzel, J Richter, J Mankertz… - Gut, 2007 - gut.bmj.com
Background: Epithelial barrier function is impaired in Crohn's disease. Aim: To define the
underlying cellular mechanisms with special attention to tight junctions. Methods: Biopsy …

Interleukin-13 is the key effector Th2 cytokine in ulcerative colitis that affects epithelial tight junctions, apoptosis, and cell restitution

F Heller, P Florian, C Bojarski, J Richter, M Christ… - Gastroenterology, 2005 - Elsevier
Background & Aims: Ulcerative colitis (UC) is characterized by a Th2 immune response with
inflammation and epithelial barrier dysfunction. So far, Th2 cytokines have not been shown …

Proinflammatory cytokines disrupt epithelial barrier function by apoptosis-independent mechanisms

M Bruewer, A Luegering, T Kucharzik… - The Journal of …, 2003 - journals.aai.org
It is well known that inflammatory conditions of the intestinal mucosa result in compromised
barrier function. Inflammation is characterized by an influx into the mucosa of immune cells …

Altered tight junction structure contributes to the impaired epithelial barrier function in ulcerative colitis

H Schmitz, C Barmeyer, ML Fromm, N Runkel, HD Foss… - Gastroenterology, 1999 - Elsevier
Background & Aims: Mechanisms of diarrhea in ulcerative colitis (UC) are still unknown.
Functional and structural characterization of epithelial barrier and transport properties in …

Maintenance of colonic homeostasis by distinctive apical TLR9 signalling in intestinal epithelial cells

J Lee, JH Mo, K Katakura, I Alkalay, AN Rucker… - Nature cell …, 2006 - nature.com
The mechanisms by which commensal bacteria suppress inflammatory signalling in the gut
are still unclear. Here, we present a cellular mechanism whereby the polarity of intestinal …

Neutrophil transmigration in inflammatory bowel disease is associated with differential expression of epithelial intercellular junction proteins

T Kucharzik, SV Walsh, J Chen, CA Parkos… - The American journal of …, 2001 - Elsevier
Inflammatory bowel disease (IBD) consisting of ulcerative colitis (UC) and Crohn's (CD)
typically displays a waxing and waning course punctuated by disease flares that are …

Interferon‐γ induces internalization of epithelial tight junction proteins via a macropinocytosis‐like process

M Bruewer, M Utech, AI Ivanov, AM Hopkins… - The FASEB …, 2005 - Wiley Online Library
Increased epithelial permeability is observed in inflammatory states. However, the
mechanism by which inflammatory mediators such as IFN‐γ increase epithelial permeability …

Tumor necrosis factor-alpha (TNFα) regulates the epithelial barrier in the human intestinal cell line HT-29/B6

H Schmitz, M Fromm, CJ Bentzel… - Journal of cell …, 1999 - journals.biologists.com
Cytokines are supposed to be mediators in diarrhoeal diseases. The aim of this study is to
characterize the effect of tumor necrosis factor-alpha (TNFα) on epithelial barrier function in …