Somatostatin: Abundance of immunoreactive hormone in rat stomach and pancreas

Akira Arimura, Haruko Sato, Andre Dupont, Nozomu Nishi, Andrew V. Schally

Research output: Contribution to journalArticlepeer-review

341 Scopus citations


Growth hormone release inhibiting hormone (somatostatin), a hypothalamic peptide that inhibits the release of growth hormone and also the secretion of insulin, glucagon, and gastrin, was found in the rat stomach and pancreas in a concentration similar to that in the hypothalamus, as measured by radioimmunoassay. Somatostatin was also found in the duodenum and jejunum, but in a smaller concentration. Gel filtration of the extracts of the pancreas and stomach on Sephadex G 25 yielded two immunoreactive peaks, one corresponding in each case to the somatostatin tetradecapeptide. The hormone was not detected in other viscera or the ovaries. The results imply that somatostatin may be synthesized in the pancreas and the stomach in addition to the brain, and may be involved in local regulatory mechanisms for pancreatic and gastric secretion as well as secretion of growth hormone.

Original languageEnglish (US)
Pages (from-to)1007-1009
Number of pages3
Issue number4207
StatePublished - 1975
Externally publishedYes

ASJC Scopus subject areas

  • General


Dive into the research topics of 'Somatostatin: Abundance of immunoreactive hormone in rat stomach and pancreas'. Together they form a unique fingerprint.

Cite this