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A Journal on Endocrine System Diseases

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Minerva Endocrinologica 2014 March;39(1):67-74

language: English

Investigation of enterovirus infections, autoimmune factors and HLA genotypes in patients with T1DM

Çekin Y. 1, Özkaya E. 2, Gülkesen H. 3, Akçurin S. 4, Çolak D. 5

1 Depatment of Microbiology, Antalya Training and Reseach Hospital, Antalya, Turkey;
2 Department of Virology, Refik Saydam Hıfsısıhha Center, Ankara, Turkey;
3 Department of Biostatistics, Akdeniz University School of Medicine, Antalya, Turkey;
4 Department of Pediatric Endocrinology, Akdeniz University School of Medicine, Antalya, Turkey;
5 Department of Medical Microbiology, Akdeniz University School of Medicine, Antalya, Turkey


Aim: Besides of genetic and autoimmun factors, role of viral infections have been investigated in pathogenesis of type 1 diabetes mellitus (T1DM).
The aim of this study was to determine enterovirus (EV) infections, glutamic acid decarboxylase (GAD) antibody positivity and HLA genotype distribution in T1DM patients with respect to corresponding healthy subjects. This is the first study in Turkey designed to investigate enteroviral infections and autoimmune and genetic factors together in this group of patients.
Methods: EV RNA, coxsackie virus B type 4 (CV-B4) antibodies, GAD antibodies and HLA genotypes were investigated in 86 patients with T1DM and in 100 control subjects.
Results: EV RNA was not detected in either the patient or control group. CV-B4 type antibodies and GAD antibodies were identified in 66.3% and 47.6% patients and 55.0% and 19% control subjects, respectively (for GAD antibodies P=0.001).
High-risk HLA-DQ and high-risk HLA-DR genotypes for T1DM were identified in 67.3% and 86.0% of patients, respectively, and the difference was significantly higher compared with controls (34% and 40%, respectively, P=0.001).
Conclusion: There was no significant relation between CV-B4 neutralizing antibody, GAD antibody positivity and high-risk HLA genotypes in patients. In conclusion, no correlation was found in this study between T1DM and EV infections. In addition, there was no relation between EV infections and T1DM in patients with high-risk genotypes or in patients with autoimmunity.

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