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  • Title: IAPP as a regulator of glucose homeostasis and pancreatic hormone secretion (review).
    Author: Karlsson E.
    Journal: Int J Mol Med; 1999 Jun; 3(6):577-84. PubMed ID: 10341286.
    Abstract:
    IAPP is a 37-amino acid peptide that is predominantly expressed in pancreatic beta cells. Despite co-secretion from islets the relative amounts of IAPP and insulin may vary. Since IAPP was first described as the major peptide constituent of amyloid in the islets of Langerhans of subjects with type 2 diabetes and insulinoma, many studies have been devoted to investigating the role of IAPP in formation of amyloid deposits and in diabetes pathogenesis. However, there is growing evidence for IAPP as an active islet hormone in addition to insulin and glucagon in glucose metabolic control. An inhibitory effect is seen by IAPP on gastric emptying, glycogen synthesis in skeletal muscle, islet insulin and glucagon secretion, whereas a stimulatory effect is seen on hepatic gluconeogenesis.
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