Pancreatic polypeptide-based therapy for blood sugar disease (autoimmune diabetes (TIDM)):  Pancreatic polypeptide increases PD-L1 expression,  augments Tregs function, promotes immune tolerance, increases pancreatic β-cell proliferation and regeneration, increases insulin secretion, improves insulin sensitivity, increases energy utilization, and reverses TIDM, via up regulation of its target gene, 8/May/2018,  6.48 pm