Melanocortin signaling in the CNS directly regulates circulating cholesterol

Diego Perez-Tilve, Susanna M. Hofmann, Joshua Basford, Ruben Nogueiras, Paul T. Pfluger, James T. Patterson, Erin Grant, Hilary E. Wilson-Perez, Norman A. Granholm, Myrtha Arnold, James L. Trevaskis, Andrew A. Butler, William S. Davidson, Stephen C. Woods, Stephen C. Benoit, Mark W. Sleeman, Richard D. Dimarchi, David Y. Hui, Matthias H. Tschöp

Research output: Contribution to journalArticlepeer-review

81 Scopus citations

Abstract

Cholesterol circulates in the blood in association with triglycerides and other lipids, and elevated blood low-density lipoprotein cholesterol carries a risk for metabolic and cardiovascular disorders, whereas high-density lipoprotein (HDL) cholesterol in the blood is thought to be beneficial. Circulating cholesterol is the balance among dietary cholesterol absorption, hepatic synthesis and secretion, and the metabolism of lipoproteins by various tissues. We found that the CNS is also an important regulator of cholesterol in rodents. Inhibiting the brain's melanocortin system by pharmacological, genetic or endocrine mechanisms increased circulating HDL cholesterol by reducing its uptake by the liver independent of food intake or body weight. Our data suggest that a neural circuit in the brain is directly involved in the control of cholesterol metabolism by the liver.

Original languageEnglish
Pages (from-to)877-882
Number of pages6
JournalNature Neuroscience
Volume13
Issue number7
DOIs
StatePublished - Jul 2010
Externally publishedYes

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