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Journal Articles Current Diabetes Reports Year : 2018

The Effect of Age on the Progression and Severity of Type 1 Diabetes: Potential Effects on Disease Mechanisms

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Abstract

PURPOSE OF REVIEW: To explore the impact of age on type 1 diabetes (T1D) pathogenesis. RECENT FINDINGS: Children progress more rapidly from autoantibody positivity to T1D and have lower C-peptide levels compared to adults. In histological analysis of post-mortem pancreata, younger age of diagnosis is associated with reduced numbers of insulin containing islets and a hyper-immune CD20hi infiltrate. Moreover compared to adults, children exhibit decreased immune regulatory function and increased engagement and trafficking of autoreactive CD8+ T cells, and age-related differences in β cell vulnerability may also contribute to the more aggressive immune phenotype observed in children. To account for some of these differences, HLA and non-HLA genetic loci that influence multiple disease characteristics, including age of onset, are being increasingly characterized. The exception of T1D as an autoimmune disease more prevalent in children than adults results from a combination of immune, metabolic, and genetic factors. Age-related differences in T1D pathology have important implications for better tailoring of immunotherapies.
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inserm-01918835 , version 1 (12-11-2018)

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Pia Leete, Roberto Mallone, Sarah J Richardson, Jay M Sosenko, Maria J Redondo, et al.. The Effect of Age on the Progression and Severity of Type 1 Diabetes: Potential Effects on Disease Mechanisms. Current Diabetes Reports, 2018, 18 (11), pp.115. ⟨10.1007/s11892-018-1083-4⟩. ⟨inserm-01918835⟩
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