GAD2 and type 1 diabetes mellitus: N-GAD65 exhibited no marked difference in recognition of serum IgG from both complicated [nephropathy (39.2 ± 5.4 MMPI) and retinopathy (41.1 ± 5.3 MMPI)] and uncomplicated (35.2 ± 5.9 MMPI) subjects of T1D, Table 1.