Long-standing type 1 diabetes: patients with adult-onset develop celiac-specific immunoreactivity more frequently than patients with childhood-onset diabetes,in a disease duration-dependent manner |
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Authors: | Claudio Tiberti Francesca Panimolle Margherita Bonamico Tiziana Filardi Lucia Pallotta Raffaella Nenna Stefano Pontone Francesco Dotta Giuseppe Pugliese Andrea Lenzi Stefano Balducci Susanna Morano |
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Affiliation: | 1. Department of Internal Medicine, Policlinico Umberto I, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy 2. Department of Pediatrics, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy 3. Department of Surgical Sciences, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy 6. Diabetes Unit, Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy 4. Department of Clinical and Molecular Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy 5. Department of Physiopathology, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
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Abstract: | To assess the frequency of celiac-associated humoral autoimmunity in patients with long-standing childhood- and adult-onset type 1 diabetes (LDM1) and whether it occurs more frequently as the disease progresses. IgA-/IgG-anti-tissue transglutaminase (IgA-tTG and IgG-tTG) and IgA-/IgG-deamidated gliadin (DGP) antibodies were analyzed in 277 LDM1 sera (120 females; disease duration 19.3 ± 12.3 years, range 5.0–54.0 years). Of the 277 patients, 147 were childhood-onset LDM1 (CHLDM1) and 130 adult-onset LDM1 (ADLDM1); 6.1 % LDM1 sera were tTG- and/or DGP-antibody-positive, with a lower frequency among CHLDM1 as compared with ADLDM1 patients (3.4 vs 9.2 %, p = 0.048). Celiac-associated immunoreactivity was significantly more frequent in LDM1 with >15 years of disease duration (9.4 vs 2.9 % in those with ≤15 years, p = 0.042) and among them in ADLDM1 (14.7 vs 4.2 % CHLDM1, p = 0.043). Celiac disease humoral immunoreactivity should be screened not only at diabetes onset, but also in long-standing patients, especially adults with disease duration >15 years. |
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