The daily timing of gene expression and physiology in mammals

Nov 1, 2007Dialogues in clinical neuroscience

Daily patterns of gene activity and body functions in mammals

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Abstract

Chronic disruption of daily rhythms may lead to increased morbidity and reduced lifespan.

  • Mammalian behavior and physiology are regulated by an endogenous circadian timing system.
  • A master pacemaker in the coordinates peripheral oscillators throughout the body.
  • Genome-wide studies have identified hundreds of genes that are rhythmically expressed in various tissues.
  • These cyclic gene expressions influence sleep-wake cycles, metabolism, detoxification, and cell growth.
  • Disruption of this temporal organization could have significant health consequences.

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