Pancreatic islets by scarce alpha, delta and PP cells in the periphery, human islets display alpha and beta cells in close relationship with each other throughout the cluster. Islets can influence each other through paracrine and autocrine communication, and beta cells are coupled electrically to six to seven other beta cells (but not to other cell types). The paracrine feedback system of the pancreatic islets has the following structure: A large number of G protein-coupled receptors (GPCRs) regulate the secretion of insulin, glucagon and somatostatin from pancreatic islets, and some of these GPCRs are the targets of drugs used to treat type-2
Islets of Mauritius also called "Gunner's Quoin", measures just 65 hectares and lies 8 km north of Mauritius. There are remnants of a sugar plantation set up by Dutch settlers. Gunner's Quoin is near Ile Plate, also called "Flat Island". Île D'Ambre, or Amber Island, is an islet off the eastern coast of Mauritius. It is relatively large compared to some of the other islets, and it has a number smaller islets of its own, including Île Mounick, Matapan Island and Îlot Canarde. The Forestry Services of the Ministry for Agriculture, Fisheries and Natural Resources is in charge of the islet. It is