Abstract
Background: Histological changes induced by gluten in the duodenal mucosa of patients with non-coeliac gluten sensitivity (NCGS) are poorly defined. Objectives: To evaluate the structural and inflammatory features of NCGS compared to controls and coeliac disease (CeD) with milder enteropathy (Marsh I-II). Methods: Well-oriented biopsies of 262 control cases with normal gastroscopy and histologic findings, 261 CeD, and 175 NCGS biopsies from 9 contributing countries were examined. Villus height (VH, in µm), crypt depth (CrD, in µm), villus-to-crypt ratios (VCR), IELs (intraepithelial lymphocytes/100 enterocytes), and other relevant histological, serologic, and demographic parameters were quantified. Results: The median VH in NCGS was significantly shorter (600, IQR: 400–705) than controls (900, IQR: 667–1112) (p < 0.001). NCGS patients with Marsh I-II had similar VH and VCR to CeD [465 µm (IQR: 390–620) vs. 427 µm (IQR: 348–569, p = 0.176)]. The VCR in NCGS with Marsh 0 was lower than controls (p < 0.001). The median IEL in NCGS with Marsh 0 was higher than controls (23.0 vs. 13.7, p < 0.001). To distinguish Marsh 0 NCGS from controls, an IEL cut-off of 14 showed 79% sensitivity and 55% specificity. IEL densities in Marsh I-II NCGS and CeD groups were similar. Conclusion: NCGS duodenal mucosa exhibits distinctive changes consistent with an intestinal response to luminal antigens, even at the Marsh 0 stage of villus architecture.
Original language | English |
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Article number | 2487 |
Number of pages | 14 |
Journal | NUTRIENTS |
Volume | 14 |
Issue number | 12 |
DOIs | |
Publication status | Published - Jun 2022 |
Publication type | A1 Journal article-refereed |
Funding
We are grateful for the technical assistance of Clare Orange, Jennifer Hay, and Hannah Morgan who tirelessly contributed to Derakhshan’s team in the Digital Histology Section at Queen Elizabeth University Hospital, Glasgow, UK. Many thanks to David Rowlands, histopatholo-gist at the Royal Wolverhampton NHS Trust, New Cross Hospital for his dedication in guiding Laura Lu in morphometric assessment. We also would like to thank Jafar Ali, gastroenterologist at Milton Keynes University Hospital, UK for his contribution to data collection.
Keywords
- coeliac disease
- histology
- non-coeliac gluten sensitivity
- normal mucosa
Publication forum classification
- Publication forum level 1
ASJC Scopus subject areas
- Food Science
- Nutrition and Dietetics