Experientia

, Volume 49, Issue 6–7, pp 551–552 | Cite as

Pancreastatin (33–49) enhances the priming effect of glucose in the rat pancreas

  • V. Sánchez-Margalet
  • R. Goberna
Research Articles

Abstract

Short-term exposure to glusoe increases insulin secretion during subsequent stimulation. We investigated the effect of the new regulatory peptide pancreastatin on this priming effect of glucose in the perfused rat pancreas. Pancreastatin (33–49) at a concentration of 10−8 M inhibited insulin release when stimulated by glucose at a concentration of 16.7 mM. However, after a second pulse of 16.7 mM glucose, pancreastatin potentiated the priming effect of glucose on insulin secretion. The modulation of insulin secretion by pancreastatin results in a potentiation of the priming effect of glucose in the rat pancreas, suggesting a role for pancreastatin in the adaptation of the B cell to glucose-stimulated insulin secretion.

Key words

Pancreastatin perfused rat pancreas glucose priming insulin secretion 

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Copyright information

© Birkhäuser Verlag Basel 1993

Authors and Affiliations

  • V. Sánchez-Margalet
    • 1
  • R. Goberna
    • 1
  1. 1.Department of Medical Biochemistry and Molecular Biology, Virgen Macarena Hospital, Medical SchoolUniversity of SevillaSevilla(Spain)

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