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Review
. 2014 Sep;57(9):1762-9.
doi: 10.1007/s00125-014-3292-y. Epub 2014 Jun 11.

Peptide YY: more than just an appetite regulator

Shanta J Persaud  1 , Gavin A Bewick
Affiliations
Review

Peptide YY: more than just an appetite regulator

Shanta J Persaud et al. Diabetologia. 2014 Sep.

Abstract

Replenishment of beta cell mass is a key aim of novel therapeutic interventions for diabetes, and the implementation of new strategies will be aided by understanding the mechanisms employed to regulate beta cell mass under normal physiological conditions. We have recently identified a new role for the gut hormone peptide YY (PYY) and the neuropeptide Y (NPY) receptor systems in the control of beta cell survival. PYY is perhaps best known for its role in regulating appetite and body weight, but its production by islet cells, the presence of NPY receptors on islets and the demonstration that Y1 activation causes proliferation of beta cells and protects them from apoptosis, suggest a role for this peptide in modulating beta cell mass. This review introduces PYY and its potential role in glucose homeostasis, then focuses on evidence supporting the concept that PYY and NPY receptors are exciting new targets for the preservation of beta cells.

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