Central administration of oleic acid inhibits glucose production and food intake

Silvana Obici, Zhaohui Feng, Kimyata Morgan, Daniel Stein, George Karkanias, Luciano Rossetti

Research output: Contribution to journalArticle

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Abstract

The hypothalamus and other regions within the central nervous system (CNS) link the sensing of nutrients to the control of metabolism and feeding behavior. Here, we report that intracerebroventricular (ICV) administration of the long-chain fatty acid oleic acid markedly inhibits glucose production and food intake. The anorectic effect of oleic acid was independent of leptin and was accompanied by a decrease in the hypothalamic expression of neuropeptide Y. The short-chain fatty acid octanoic acid failed to reproduce the metabolic effects of oleic acid, and ICV coadministration of inhibitors of ATP-sensitive K+ channels blunted the effect of oleic acid on glucose production. This is the first demonstration that fatty acids can signal nutrient availability to the CNS, which in turn limits further delivery of nutrients to the circulation.

Original languageEnglish (US)
Pages (from-to)271-275
Number of pages5
JournalDiabetes
Volume51
Issue number2
DOIs
StatePublished - Jan 1 2002

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ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism

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