Decay score: A guide to the immunoreactivity of human pancreatic islets in autopsy specimen.

Pancreatic islets immunoreactivity was found to be well preserved in the samples collected early within 9 h with a decay score of less than 1.4. There was an inverse relation of decay score and immunoreactivity of pancreatic islets. The decay score of less than 1.4 has better-preserved immunoreactivity than having more than 1.4. This knowledge will help researchers working in the field of the endocrine pancreas.