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  • Title: Anti-endomysial antibody negative celiac disease: does additional serological testing help?
    Author: Dahele A, Kingstone K, Bode J, Anderson D, Ghosh S.
    Journal: Dig Dis Sci; 2001 Jan; 46(1):214-21. PubMed ID: 11270789.
    Abstract:
    Anti-endomysium antibodies (AEM) fail to identify all untreated celiac disease (CD) patients. This study aims to determine if additional serology, in particular, IgA anti-tissue transglutaminase (tTG) antibodies, increases detection. Fifty-three biopsy-proven untreated CD patients (39 women, 14 men; median age 51 years) and 65 control patients with normal duodenal histology (46 women, 19 men; age range 17-90 years, median 45 years) were prospectively studied. Serum total IgA, IgA anti-tTG, IgA AEM, IgA anti-gliadin (AGA) and IgG AGA antibodies were measured. Thirteen (25%) CD patients were AEM negative. None were IgA deficient. Three AEM-negative CD patients had a raised IgA anti-tTG and IgA AGA. IgG AGA was raised in 10 AEM-negative CD patients, but also in 14/65 (22%) of controls. In conclusion, AEM-negative CD is common and detection is only modestly enhanced by testing for IgA anti-tTG antibodies. Duodenal biopsy is still recommended for the accurate diagnosis of CD.
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