CPA1 and chronic pancreatitis: To evaluate the histological progression of chronic pancreatitis in CPA1 N256K and CPA1 N256K × Ddit3-KO mice, pancreas sections were stained with hematoxylin–eosin at 1, 3, and 6 months of age (Fig. 5) and compared to similarly treated pancreas sections from C57BL/6N and Ddit3-KO mice.