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The effects of two FMRFamide related peptides (A-18-F-amide and F-8-F-amide; 'morphine modulating peptides') on the endocrine and exocrine rat pancreas.

Authors: Fehmann, HC  McGregor, G  Weber, V  Eissele, R  Goke, R  Goke, B  Arnold, R 
Citation: Fehmann HC, etal., Neuropeptides. 1990 Oct;17(2):87-92.
Pubmed: (View Article at PubMed) PMID:1704109

The effects of two recently isolated mammalian FMRFamide related peptides (A-18-F-amide and F-8-F-amide) on the encocrine and exocrine rat pancreas were investigated. A-18-F-amide (10, 100, 1000 pM) inhibited concentration dependently glucose (10 mM)- and arginine (10 mM)-induced insulin secretion from the isolated perfused rat pancreas during the first (controls: 100%; 10 pM: 114%; 100 pM: 63%, p less than 0.05; 1000 pM: 31%, p less than 0.05) and the second secretion phase (controls: 100%; 10 pM: 102%; 100 pM: 78%; 1000 pM: 27%, p less than 0.05). The inhibitory actions of A-18-F-amide on pancreatic D-cell secretion were more pronounced during the first than the second phase (first phase: controls: 100%; 10 pM: 95%; 100 pM: 37%, p less than 0.05; 1000 pM: 39%, p less than 0.05%; second phase: controls: 100%; 10 pM: 113%; 100 pM: 72%; 1000 pM: 59%, p less than 0.05). F-8-F-amide (at 1000 pM) inhibited stimulated insulin (controls: 100%; first phase: 26%, p less than 0.05%; second phase: 20%, p less than 0.05) and somatostatin release (controls: 100%; first phase: 14%, p less than 0.05; second phase: 29%, p less than 0.05). Both peptides were without effect on basal and CCK-8-stimulated amylase release from isolated incubated rat pancreatic acini.


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CRRD Object Information
CRRD ID: 2316580
Created: 2010-02-17
Species: All species
Last Modified: 2010-02-17
Status: ACTIVE


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