The tight junction and the epithelial barrier in coeliac disease.
Level 5 - mechanism / opinion, no new human data
Narrative review of mechanistic concepts without primary data or systematic search methodology
PubMed 33707052 · doi:10.1016/bs.ircmb.2020.09.010
What was done
This review chapter synthesizes recent findings on tight junction molecular architecture, intestinal epithelial barrier regulation, the role of zonulin in barrier permeability, and emerging therapeutic approaches targeting barrier defects in coeliac disease.
What was found
The abstract reports no quantitative data or numerical outcomes. It describes qualitatively that tight junction molecular structure and barrier function are disrupted in coeliac disease, fail to fully recover following a gluten-free diet, and that zonulin levels are elevated.
Why it matters
Persistent epithelial barrier disruption despite a gluten-free diet points to additional pathogenic mechanisms and highlights tight junction regulation, including zonulin pathways, as potential therapeutic targets.
Limits
The paper is a narrative review without primary empirical data, systematic search criteria, or reported sample sizes. No quantitative measures or statistical outcomes are provided in the abstract.
Cited by
- context In celiac disease, gluten exposure causes intestinal tight junctions to open and stay open, leading to large-scale LPS leakage into circulation.