Abstract
Two tetrapeptides, Glp-Met-Asp-Phe-NH2 (I) and Pro-Met-Asp-Phe-NH2 (II), analogous to the C-terminal tetrapeptide amide of cholecystokinin (CCK-4) have been synthesized and their effect on the release of insulin from the isolated Langerhans islets of rat pancreas compared with that of synthetic CCK-4. Both the new congeners exhibited significant insulin-releasing activity at 10-8 M and 10-6 M concentrations, suggesting that the biological activity is retained when the N-terminal Trp residue of CCK-4 is replaced by Glp or Pro.
Original language | English (US) |
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Pages (from-to) | 361-364 |
Number of pages | 4 |
Journal | Acta Diabetologica Latina |
Volume | 21 |
Issue number | 4 |
DOIs | |
State | Published - Oct 1984 |
Keywords
- C-terminal tetrapeptide amide
- Cholecystokinin
- Insulin secretion
- Islets of Langerhans
- Synthetic analogue
ASJC Scopus subject areas
- Internal Medicine
- Endocrinology, Diabetes and Metabolism
- Endocrinology