SLC30A8 and type 1 diabetes mellitus: However, the increasing number of studies on new pancreas antigens, such as zinc transporter 8 (ZnT8), pancreatic duodenal homeobox factor-1, chromogranin A and islet amyloid polypeptide, may possibly lead to development of new treatment options and clarify etiology in idiopathic T1D patients (9,10,11,12).