Microbial Biomarkers in Patients with Nonresponsive Celiac Disease

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Viitasalo , L , Kurppa , K , Ashorn , M , Saavalainen , P , Huhtala , H , Ashorn , S , Mäki , M , Ilus , T , Kaukinen , K & Iltanen , S 2018 , ' Microbial Biomarkers in Patients with Nonresponsive Celiac Disease ' , Digestive Diseases and Sciences , vol. 63 , no. 12 , pp. 3434-3441 . https://doi.org/10.1007/s10620-018-5285-z

Title: Microbial Biomarkers in Patients with Nonresponsive Celiac Disease
Author: Viitasalo, Liisa; Kurppa, Kalle; Ashorn, Merja; Saavalainen, Päivi; Huhtala, Heini; Ashorn, Sara; Mäki, Markku; Ilus, Tuire; Kaukinen, Katri; Iltanen, Sari
Contributor: University of Helsinki, Immunomics
Date: 2018-12
Language: eng
Number of pages: 8
Belongs to series: Digestive Diseases and Sciences
ISSN: 0163-2116
URI: http://hdl.handle.net/10138/276968
Abstract: Background and AimsIn nonresponsive celiac disease (NRCD), the symptoms and duodenal damage persist despite a gluten-free diet. Celiac disease patients with persistent symptoms are found to have a dysbiotic microbiota. We thus hypothesized that increased seroreactivity to the serum gluten-sensitive microbial antibodies Saccharomyces cerevisiae (ASCA), Pseudomonas fluorescens-associated sequence (I2), and Bacteroides caccae TonB-linked outer membrane protein (OmpW) is associated with NRCD.MethodsASCA, I2 and OmpW were measured in 20 seronegative CD patients with persistent villous damage despite strict dietary treatment (NRCD group). Fifty-eight responsive patients served as CD controls (55 on gluten-free treatment) and 80 blood donors as non-CD controls.ResultsAt least one microbial marker was positive in 80% of NRCD patients, in 97% of untreated CD and 87% of treated CD patients, and in 44% of controls. NRCD patients had the highest frequency of ASCA positivity (65% vs 52, 20, and 0%, respectively) and also significantly higher ASCA IgA (median 14.5 U/ml) and IgG (32.5 U/ml) titers than treated CD patients (7.0 U/ml, 13.0 U/ml) and non-CD controls (4.5 U/ml, 5.8 U/ml). The frequencies of I2 and OmpW were lower in NRCD than in untreated CD (65% and 45% vs 86% and 59%, respectively), and I2 titers were higher in NRCD (median absorbance 0.76) and untreated (1.0) and treated (0.83) CD than controls (0.32). OmpW was elevated in untreated (1.1) and treated (0.94) CD patients compared with controls (0.79).ConclusionsSeropositivity and high titers of ASCA are associated with NRCD and might serve as an additional follow-up tool in CD.
Subject: Nonresponsive celiac disease
Microbiota
Saccharomyces cerevisiae
Pseudomonas fluorescence
Bacteroides caccae
GLUTEN-FREE DIET
ANTI-SACCHAROMYCES-CEREVISIAE
INFLAMMATORY-BOWEL-DISEASE
CROHNS-DISEASE
SEROLOGICAL RESPONSES
NOD2/CARD15 GENOTYPE
PERSISTENT SYMPTOMS
ANTIBODIES
ASCA
IBD
3121 General medicine, internal medicine and other clinical medicine
3111 Biomedicine
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