Yasemin Derya Gülseren1, Ali Kudret Adiloğlu1, Mihriban Yücel1, Zuhal Dağ2, Nilnur Eyerci3, Rukiye Berkem1, Levent Filik2, Muzaffer Çaydere4. 1. Department of Microbiology, Ankara Training and Research Hospital, Health Sciences University, Altındağ, Ankara, Turkey. 2. Department of Gastroenterology, Ankara Training and Research Hospital, Health Sciences University, Altındağ, Ankara, Turkey. 3. Department of Tissue Typing Laboratory, Ankara Dışkapı Yıldırım Beyazıt Training and Research Hospital, Health Sciences University, Etlik, Ankara, Turkey. 4. Department of Pathology, Ankara Training and Research Hospital, Health Sciences University, Altındağ, Ankara, Turkey.
Abstract
BACKGROUND/AIMS: Today, invasive diagnostic tests are necessary for definite diagnosis of adult celiac disease (CD). However, in selected children patients, the need for invasive tests is ceased. In this study, we evaluated adult patients according to the ESPGHAN (European Pediatric Gastroenterology Hepatology and Nutrition Society) criteria. METHODS: Thirty-nine patients (aged 17-66) with symptoms of CD were included. Serum samples were tested for total IgA, tTG-IgA (antitissue transglutaminase), tTG-IgG, DGP-IgA (antideamidated gliadin peptide), DGP-IgG, and EMA (endomysial antibodies). HLA-DQ typing was studied with PCR-SSP (sequence-specific primers) method. Biopsy samples were evaluated according to Marsh scoring. RESULTS: In CD patients, 71.4% (15/21) of the patients were diagnosed without biopsy according to the EPSGHAN criteria but when ESPGHAN's IgA tTG threshold value for children was taken into consideration (>200 IU/mL), the sensitivity decreased to 81%. Celiac disease diagnosed and control groups were compared in terms of HLA tissue types. DQ2.5 homozygous or DQ2.5/DQ2.2 was significantly higher in CD group, and DQ2- or DQ8-negative HLA tissue type was significantly higher in control group. CONCLUSION: When serological tests, HLA typing, and clinical symptoms are all in favor of CD, biopsy may not be performed in selected adult CD patients.
BACKGROUND/AIMS: Today, invasive diagnostic tests are necessary for definite diagnosis of adult celiac disease (CD). However, in selected childrenpatients, the need for invasive tests is ceased. In this study, we evaluated adult patients according to the ESPGHAN (European Pediatric Gastroenterology Hepatology and Nutrition Society) criteria. METHODS: Thirty-nine patients (aged 17-66) with symptoms of CD were included. Serum samples were tested for total IgA, tTG-IgA (antitissue transglutaminase), tTG-IgG, DGP-IgA (antideamidated gliadin peptide), DGP-IgG, and EMA (endomysial antibodies). HLA-DQ typing was studied with PCR-SSP (sequence-specific primers) method. Biopsy samples were evaluated according to Marsh scoring. RESULTS: In CDpatients, 71.4% (15/21) of the patients were diagnosed without biopsy according to the EPSGHAN criteria but when ESPGHAN's IgA tTG threshold value for children was taken into consideration (>200 IU/mL), the sensitivity decreased to 81%. Celiac disease diagnosed and control groups were compared in terms of HLA tissue types. DQ2.5 homozygous or DQ2.5/DQ2.2 was significantly higher in CD group, and DQ2- or DQ8-negative HLA tissue type was significantly higher in control group. CONCLUSION: When serological tests, HLA typing, and clinical symptoms are all in favor of CD, biopsy may not be performed in selected adult CDpatients.
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