415 million people worldwide have diabetes, and the number is expected to rise to 642 million by 2040. November 14 is World Diabetes Day. This day coincides with the birthday of Frederick Banting, who along with Charles Best and John James Rickard Macleod, conceived the idea that led to the discovery of insulin in 1922.
They succeed in identifying and isolating stem cells from an adult pancreas, and transforming them into insulin-producing cells. The hormone insulin is crucial for the control of glucose levels in the blood. In people with type 1 diabetes, the immune system has destroyed the beta cells of the pancreas, which are the insulin-producing cells.