Summary
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.
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CDRI Communication No. 3382.
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Ahmad, N., Sharma, S.D., Rastogi, A.K. et al. Stimulation of insulin secretion by peptides analogous to the C-terminal tetrapeptide amide of cholecystokinin. Acta diabet. lat 21, 361–364 (1984). https://doi.org/10.1007/BF02582090
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DOI: https://doi.org/10.1007/BF02582090