Celiac disease (CD) is a disease having the characteristic pathology of the mucosa of the small intestine. The prevalence of CD in the Turkish population has not been investigated previously. The present study was designed to determine the prevalence of CD in healthy blood donors. Serum samples of 2000 healthy blood donors presenting to Hacettepe University Faculty of Medicine Hospital Blood Bank were tested for tissue transglutaminase (tTG) IgA and IgG antibodies with enzyme-linked immunosorbent assay (ELISA; Euroimmune, Germany). The histopathological findings for the cases with positive serology were evaluated. The distribution of sex was 95.7% male, and 4.3% female. The mean age was 33 +/- 9. Among 2000 donors, 23 (1.15%) were positive for tTG IgA antibody and 3 (0.15%) were positive for tTG IgG antibody. None of the samples was positive for both antibodies. Serum total IgA was measured in two cases with only tTG IgG positivity and was found to be low in one case. Twelve subjects positive for tTG agreed to endoscopy and biopsy. Histopathological examination revealed changes classified as Marsh III-II in one, Marsh II in two, Marsh I in seven, and Marsh 0 in two donors. This was the first study conducted to determine the prevalence of tTG positivity in the Turkish population. The tTG antibody positivity prevalence in healthy blood donors was as high as 1.3%. This study shows that the prevalence of CD in the Turkish population is relatively high in comparison to that in the Western world.
Celiac disease (CD) is characterized by malabsorption of nutrients in the small intestine. The availability of highly specific and sensitive serologic tests has facilitated its diagnosis, increasing the disease prevalence. The aim of this study was to determine the clinical, laboratory, and histopathological features of CD in Turkish adults. Between 1968 and 2002, CD patients presenting to the Gastroenterology Unit were evaluated retrospectively. From 2002, newly diagnosed patients were prospectively followed up. Sixty patients (39 female, 21 male) were included in the study. Mean body mass index was 22.2 +/- 5.4 kg/m2. The most common symptoms were diarrhea, weight loss, and flatulence. Most common comorbidities were anemia, osteoporosis, type 1 diabetes mellitus, and steatohepatitis. Six (10.0%) patients had a family history of diabetes mellitus; one (1.7%) patient had a family history of CD. Plasma glucose and serum gamma-glutamyltransferase levels were significantly higher in females than males. Most common histopathological findings were increased lymphocytes in the lamina propria (76.2%) and villus epithelium (59.5%). Over the years, the cumulative frequency of CD increased more in females than males. This is the first study in the literature showing the characteristics of CD in Turkish adults. In our previous recent study, the prevalence of tissue transglutaminase antibody positivity in Turkish healthy blood donors was 1.3%, indicating a high prevalence of CD in our population. In this study, the cumulative frequency of CD increased more in females than males. With the better understanding and increased suspicion of the disease, more patients are being diagnosed in our population.
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