Note: Single-source report; awaiting corroboration.
An NIH-funded study examined pancreatic islet cells from 299 donors through the Integrated Islet Distribution Program (IIDP), identifying key differences in hormone-producing cells that regulate blood glucose. Researchers focused on alpha cells (glucagon), beta cells (insulin), and delta cells (somatostatin).
The study found significant variation in the mix of islet cells between individuals, which may impact how the body regulates blood sugar. The diverse donor pool, closely matching the U.S. population in race, ethnicity, sex, age, and body mass index, provides a broad view of islet function across backgrounds.
According to the NIH’s National Institute of Diabetes and Digestive and Kidney Diseases, this large dataset—characterizing islet cells across many donors—is unprecedented. It is expected to advance understanding of how multiple factors combine to affect diabetes risk, linking cellular differences to genetic and phenotypic traits.
The IIDP optimized islet isolation and quality for research, enabling the collection of this robust dataset. The findings may offer new insights into the biological basis of diabetes susceptibility and guide future research.