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17 October 2017

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Int J Med Sci 2014; 11(8):819-823. doi:10.7150/ijms.8854

Research Paper

Screening Tests Using Serum Tissue Transglutaminase IgA May Facilitate the Identification of Undiagnosed Celiac Disease among Japanese Population

Hideyuki Nakazawa1✉, Hideki Makishima1, Toshiro Ito1, Hiroyoshi Ota2, Kayoko Momose1, Nodoka Sekiguchi1, Kaname Yoshizawa3, Taiji Akamatsu4, Fumihiro Ishida1, 2

1. Department of Internal Medicine, Division of Hematology, Shinshu University School of Medicine, 3-1-1 Asahi Matsumoto, Japan 390-8621;
2. Department of Biomedical Laboratory Sciences, School of Health Sciences, Shinshu University School of Medicine, 3-1-1 Asahi Matsumoto, Japan 390-8621;
3. Department of Internal Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, 3-1-1 Asahi Matsumoto, Japan 390-8621;
4. Department of Endoscopy, Shinshu University Hospital, 3-1-1 Asahi Matsumoto, Japan 390-8621

Abstract

The 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.

Keywords: celiac disease, anti-tissue transglutaminase IgA, screening, malignant lymphoma

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How to cite this article:
Nakazawa H, Makishima H, Ito T, Ota H, Momose K, Sekiguchi N, Yoshizawa K, Akamatsu T, Ishida F. Screening Tests Using Serum Tissue Transglutaminase IgA May Facilitate the Identification of Undiagnosed Celiac Disease among Japanese Population. Int J Med Sci 2014; 11(8):819-823. doi:10.7150/ijms.8854. Available from http://www.medsci.org/v11p0819.htm