Autoimmune, or type 1 diabetes, is characterized by selective destruction of insulin-producing pancreatic β-cells that is preceded by an inflammatory reaction in and around the islets of Langerhans (Gepts, 1965; Like et al, 1985; Wicker et al, 1986; Bergman & Haskins, 1997). This evidence concerns the gene INS and type 1 diabetes mellitus.