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Redefining the intraepithelial lymphocytes threshold to diagnose gluten sensitivity in patients with architecturally normal duodenal histology.

Abstract：

BACKGROUND:Accuracy of intraepithelial lymphocytes counts for diagnosing mild enteropathy coeliac disease in absence of villous atrophy can be limited by inappropriate controls included in the studies. AIM:To determine the diagnostic accuracy of intraepithelial lymphocytes counts utilising controls lacking HLA coeliac disease-associated alleles. METHODS:Intraepithelial lymphocytes counting at villus tip and per 100 enterocytes was performed at haematoxylin and eosin (H&E) and CD3-stainings in: 29 cases (21 with potential coeliac disease and 8 affected by latent coeliac disease) representing the patient population and 14 noncoeliac controls lacking HLA-DQ2/DQ8 alleles. RESULTS:Threshold (mean+2 s.d.) of duodenal intraepithelial lymphocytes at villus tip and per 100 enterocytes in noncoeliac controls was respectively: 3.5 and 18 at H&E, 3.2 and 17 following CD3-staining. Considering the whole patient population, the sensitivity of tip intraepithelial lymphocytes in detecting mild enteropathy coeliac disease was 90% (95% CI=72.6-97.8) both at H&E and CD3-stainings. The sensitivity of intraepithelial lymphocytes per 100 enterocytes was 93% (95% CI=77.2-99.2) both at H&E and CD3-staining. Specificity of both intraepithelial lymphocytes counts was 100% (95% CI=76.8-100). Using a threshold of 25 intraepithelial lymphocytes per 100 enterocytes could miss 59% of cases at H&E and 48% following CD3-staining. CONCLUSIONS:Intraepithelial lymphocytes counts are diagnostic feasible tools to detect mild enteropathy coeliac disease. Threshold of duodenal intraepithelial lymphocytes may be lower than currently accepted.

journal_name

Aliment Pharmacol Ther

journal_title

Alimentary pharmacology & therapeutics

authors

Pellegrino S,Villanacci V,Sansotta N,Scarfì R,Bassotti G,Vieni G,Princiotta A,Sferlazzas C,Magazzù G,Tuccari G

doi

10.1111/j.1365-2036.2011.04578.x

subject

Has Abstract

pub_date

2011-03-01 00:00:00

pages

697-706

issue

6

eissn

0269-2813

issn

1365-2036

journal_volume

33

pub_type

杂志文章

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