Somatostatin
Stimulates glucagon release while inhibits insulin release
Stimulates the release of insulin and glucagon
Inhibits the release of glucagon and insulin
Inhibits glucagon release while stimulates insulin release
Somatostatin:
It is the same substance as growth inhibiting hormones from the hypothalamus.
One of the actions of somatostatin seems to suppress the release of other hormones from the pancreas.
It also appears to suppress the release of hormones from the digestive tract.
It acts on the cells of the pancreas.