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- W3146062544 abstract "AIM: To determine the diagnostic accuracy of a new point-of-care assay detecting anti-deamidated gliadin peptides in celiac disease(CD) patients.METHODS: One-hundred-and-twelve patients(age range: 1.8-79.2 years old) with clinical symptoms suggestive of CD and/or first-degree relatives(FDR) of CD patients(n = 66),and confirmed CD on a gluten-free diet(GFD)(n = 46),were prospectively enrolled in the study at Gastroenterology outpatient clinics for adult patients and from the Gastroenterology Consultation Ward at the Pediatric Department of the University Hospital of Geneva.Written informed consent was obtained from all subjects enrolled.The study received approval from the local ethics committee.The original CD diagnosis had been based on serum-positive IgA anti-tissue transglutaminase enzyme-linked immunosorbent assay(ELISA)(QuantaLite,Inova Diagnostics,San Diego,CA,United States) and on biopsy results.Serum samples from all study participants were tested by the new CD lateral flow immunochromatographic assay(CD-LFIA) device,Simtomax Blood Drop(Augurix SA,BioArk,Monthey,Switzerland) to detect immunoglobulin(Ig)A and IgG antibodies against deamidated gliadin peptides.The diagnostic performance was evaluated using receiver operating characteristic curves with 95%CIs.A cut-off of 2 on the Rann colorimetric scale was used to calculate the device’s sensitivity and specificity.RESULTS: CD-LFIA was highly accurate in detecting untreated celiac patients.In the group of patients with CD symptoms and/or FDR,eight new cases of CD were detected by ELISA and biopsy.All of these new cases were also correctly identified by CD-LFIA.The test yielded four false positive and four false negative results.The false positive results were all within the groups with clinical symptoms suggestive of CD and/or FDR,whereas the false negative results were all within the GFD group.The test yeld a sensitivity of 78.9%(95%CI: 54.4-93.9) and specificity of 95.7%(95%CI: 89.4-98.8),and the area under the curve reached 0.893(95%CI: 0.798-0.988).T" @default.
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- W3146062544 date "2013-01-01" @default.
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- W3146062544 title "Diagnostic accuracy of a new point-of-care screening assay for celiac disease" @default.
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