The radioimmunoassay and physiology of somatostatin in the pancreas and gastrointestinal tract
McIntosh, C.; Arnold, R.
Zeitschrift für Gastroenterologie 16(5): 330-340
1978
ISSN/ISBN: 0044-2771 PMID: 349906 Document Number: 137391
Radioimmunoassays for somatostain have demonstrated that high concentrations of the polypeptide are present in the pancreas and gastrointestinal tract of a number of species. Although measurement in tissue extracts is relatively unproblematic, detection and characterization of somatostatin-like material in plasma has proved technically difficult. Studies of pancreatic somatostatin release in vitro suggest a possible function in the regulation of islet hormone secretion, but the mode of action remains to be elucidated. Although, at present, no clinical relevance can be attributed to the somatostain radioimmunoassay reports of somatostatin secreting tumors and changes in stomach tissue content in patients with ulcer disease indicate a contributory role in the pathophysiology of certain disease states.