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FEBS Lett. 2008 Jan 9;582(1):19-25. Epub 2007 Aug 24.

Rev-erb alpha gives a time cue to metabolism.

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Institut Pasteur de Lille, Lille F-59019, France.


Normal physiological processes are under control of circadian rhythms. Moreover, certain pathological events, such as cardiovascular accidents (myocardial infarction, stroke) occur more frequently at specific times of the day. Recent observations demonstrate a causal relationship between alterations in circadian rhythmicity and metabolic disorders. Disruption of clock genes results in dyslipidemia, insulin resistance and obesity, all predisposing to atherosclerosis. The nuclear receptor Rev-erb alpha is part of the clock circuitry and plays an important role in keeping proper timing of the clock. Rev-erb alpha also regulates lipid metabolism, adipogenesis and vascular inflammation. Interestingly, Rev-erb alpha also cross-talks with several other nuclear receptors involved in energy homeostasis. Therefore Rev-erb alpha may serve to couple metabolic and circadian signals.

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