A possible role of the pancreatic α1- and α2-cells as local regulators of insulin secretion
In addition to a majority of insulin-producing β-cells, the mammalian pancreatic islets contain considerable numbers of α1- and α2-cells. While the α2-cells are the cellular source of glucagon, the secretory product stored in the granules of the α1-cells still remains to be identified.Several authors have reported that glucagon stimulates insulin release. This effect of glucagon was found to be de
