The glucoregulatory role of insulin for adult subjects is undisputed. However, less is known about its secretion and actions in the neonatal period, either in healthy subjects, or in those at risk ...

Within islets, beta cells secrete insulin, and alpha cells secrete glucagon. Scientists have identified three additional cell types in islets, including cells that secrete the hormones ...

It’s known as negative feedback because an increase in hormone decreases the substance being controlled, e.g. an increase in insulin decreases blood glucose concentration.

"Insulin is the principal hormone controlling blood glucose; it stimulates glucose influx and metabolism in muscle and fat, inhibits gluconeogenesis in the liver, and, along with the insulin-like ...