• Hideyuki Nakazawa, Hideki Makishima, Toshiro Ito, Hiroyoshi Ota, Kayoko Momose, Nodoka Sekiguchi, Kaname Yoshizawa, Taiji Akamatsu, and Fumihiro Ishida.
• 1. Department of Internal Medicine, Division of Hematology, Shinshu University School of Medicine, 3-1-1 Asahi Matsumoto, Japan 390-8621;
• Int J Med Sci. 2014 Jan 1; 11 (8): 819-23.

AbstractThe prevalence of celiac disease (CD) among Japanese population has been unknown, whereas it has been increasingly recognized in the US and in the European countries. The aim of the present study is to identify possible cases with CD among Japanese population and clarify the relevance of screening for the disease. We conducted a serologic screening for the disease among 710 Japanese patients and 239 healthy volunteers at a local tertiary teaching hospital, using an anti-tissue transglutaminase IgA (TTG-IgA) test, and histological examination of the small intestines from the TTG-IgA positive subjects. There were no TTG-IgA positive sera among the healthy volunteers. Twenty of the patients (2.8%), including eight with malignant lymphoma, were tested positive for TTG-IgA. The histological examination of the eleven patients among those with positive TTG-IgA, seven showed villous atrophy and partial lymphocytes infiltration in the mucosa, which could be compatible to mucosal changes observed in CD. Five of them had non-Hodgkin lymphoma in the gastrointestinal tracts. Serologic tests using TTG-IgA might be relevant to screen for those with undiagnosed CD among Japanese population.

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