A: Absence of islet amyloid polypeptide deposition in pig islets >1 year after transplantation into the liver of a cynomolgus
monkey. B:Native islets from a deceased, nondiabetic adult human in which there is significant amyloid deposition (red immunofluorescence).
Blue, cell nuclei; green, insulin. (A high-quality digital representation of this figure is available in the online issue.)