Pancreatic Polypeptide
1981/10/01 by Janos Lonovics, János Lonovics · 19 citations
Medicine · #Neuroendocrine Tumor Research Advances #Pancreatic function and diabetes #Pancreatic and Hepatic Oncology Research
paper · doi:10.1001/archsurg.1981.01380220010002
Abstract
Pancreatic polypeptide (PP), 36-amino acid peptide, may function as an important feedback inhibitor of pancreatic secretion after a meal. It arises from both islet and acinar cells of the pancreas. Release of PP by a meal, primarily protein, occurs in a biphasic manner. The first rapid release occurs as a result of vagal stimulation; the second, more prolonged rise (the so-called intestinal phase) occurs in response to hormonal stimulation, predominantly cholecystokinin. Plasma PP levels increase with age; PP levels are elevated above those of age-controlled normal subjects in diabetic patients and in some patients with pancreatic amine precursor uptake decarboxylase tumors. The value of plasma PP as a possible marker for pancreatic tumors is as yet unsettled but may be a valuable tool.
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