Aautoantibodies to the islet antigens insulin (IAA), glutamate decarboxylase (GADA) and IA-2 (IA-2A) are strong predictors of type 1 diabetes, but the rate of progression to diabetes in multiple islet autoantibody-positive relatives varies widely. Aim of this study was to find out whether detailed characterization of islet autoantibodies that included determination of titer, subclass and epitope specificity would improve diabetes prediction in a large cohort of autoantibody-positive relatives. The study shows a strong association between risk and high titer, broad antibody responses to IA-2 and insulin. Using models based on these antibody characteristics, autoantibody-positive relatives can be classified into groups with risks of diabetes ranging from 7 to 89% within 5 years.
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Aautoantibodies to the islet antigens insulin (IAA), glutamate decarboxylase (GADA) and IA-2 (IA-2A) are strong predictors of type 1 diabetes, but the rate of progression to diabetes in multiple islet autoantibody-positive relatives varies widely. Aim of this study was to find out whether detailed characterization of islet autoantibodies that included determination of titer, subclass and epitope specificity would improve diabetes prediction in a large cohort of autoantibody-positive relatives. Th...
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