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PMID:12895659

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Citation

Guzman, EA, Zhang, W, Lin, TR and Mulholland, MW (2003) Stimulation of rat pancreatic exocrine secretion by urocortin and corticotropin releasing factor. Peptides 24:727-34

Abstract

Neural and hormonal mechanisms control pancreatic secretion. The effects of the corticotropin releasing factor (CRF) related neuropeptide urocortin (UCN) on pancreatic exocrine secretion were examined. In anesthetized male rats, pancreatic secretion volume and total protein were assayed. UCN increased pancreatic secretory volume and protein secretion and potentiated cholecytokinin-stimulated protein secretion. Astressin, a non-specific CRF receptor antagonist, inhibited UCN-stimulated protein output while CRF(2) receptor antagonist, antisauvagine-30, was without effect. Atropine, but not subdiaphragmatic vagotomy, inhibited UCN-mediated secretion. In acinar cells, UCN did not stimulate release of amylase nor intracellular cAMP. UCN is a pancreatic exocrine secreatagogue with effects mediated through cholinergic intrapancreatic neurons.

Links

PubMed

Keywords

Animals; Atropine/pharmacology; Corticotropin-Releasing Hormone/pharmacology; Cyclic AMP/metabolism; Humans; Male; Pancreas/metabolism; Pancreas/secretion; Rats; Rats, Sprague-Dawley; Receptors, Corticotropin-Releasing Hormone/metabolism; Time Factors; Urocortins; Vagotomy; Vasoactive Intestinal Peptide/pharmacology

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

RAT:UCN1

involved_in

GO:0030157: pancreatic juice secretion

ECO:0000314: direct assay evidence used in manual assertion

P

Seeded From UniProt

complete


See also

References

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