Leptin inhibition of insulin secretion from isolated human islets

H. C. Fehmann, P. Berghöfer, D. Brandhorst, H. Brandhorst, B. Hering, R. G. Bretzel, B. Göke

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

Leptin is a hormone produced and secreted from the adipose tissue. Its physiological actions include the regulation of satiety, food intake and energy balance. The production of leptin is increased by high insulin levels. Here, we demonstrate that leptin acts as an inhibitor of glucose-induced (20 mM) insulin secretion from isolated human islets. No effect was observed in the presence of lower glucose levels (2.8 and 10 mM glucose). The pancreatic β-cell might represent a target of a direct physiological action of leptin. We suggest the presence of an 'adipo-insular axis' in which leptin mediates negative feedback from the adipose tissue to the endocrine pancreas.

Original languageEnglish (US)
Pages (from-to)249-252
Number of pages4
JournalActa Diabetologica
Volume34
Issue number4
DOIs
StatePublished - Dec 1 1997

Keywords

  • Endocrine pancreas
  • Insulin secretion
  • Leptin
  • β-cells

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