INS and type 1 diabetes mellitus: Specific autoantibodies associated with T1D are anti-glutamic acid decarboxylase (anti-GADA), insulin autoantibodies (IAA), insulinoma-associated-2 autoantibodies (IA-2A), islet cell cytoplasmic autoantibodies (ICA) and zinc transporter 8 autoantibodies (ZnT8A) (Table 1).