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Related Experiment Video

Updated: Jun 25, 2025

Manipulation of Rhythmic Food Intake in Mice Using a Custom-Made Feeding System
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Circadian influences on feeding behavior.

Susanne E la Fleur1, Aurea S Blancas-Velazquez2, Dirk Jan Stenvers3

  • 1Amsterdam UMC, University of Amsterdam, Laboratory of Endocrinology, Department of Laboratory Medicine, Meibergdreef 9, Amsterdam, the Netherlands; Amsterdam Neuroscience, Cellular and Molecular Mechanisms, Amsterdam, the Netherlands; Amsterdam Gastroenterology Endocrinology Metabolism, Endocrinology, Metabolism and Nutrition, Amsterdam, the Netherlands.

Neuropharmacology
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PubMed
Summary

The body

Keywords:
CircadianClock genesFeeding behaviorSuprachiasmatic nucleus

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Area of Science:

  • Neuroscience
  • Chronobiology
  • Metabolism

Background:

  • Daily feeding rhythms are orchestrated by the central circadian timing system, primarily the suprachiasmatic nucleus (SCN).
  • Peripheral oscillators in various tissues and brain regions also exhibit rhythmic functions.
  • The rewarding pathways of feeding behavior, including the dopaminergic system, are influenced by circadian rhythms.

Purpose of the Study:

  • To explore the intricate relationship between circadian rhythms and feeding behavior.
  • To review the impact of clock genes on eating patterns.
  • To understand how diet composition influences physiological rhythms.

Main Methods:

  • Review of rodent literature on circadian control of feeding.
  • Analysis of clock gene deletion effects on feeding behavior.
  • Examination of hormonal and peptide release patterns related to meals.

Main Results:

  • The suprachiasmatic nucleus (SCN) coordinates feeding rhythms by signaling to hypothalamic areas.
  • High-caloric diets can disrupt physiological rhythms and alter meal patterns.
  • Clock gene mutations, particularly in Clock mutants, significantly affect feeding behavior.

Conclusions:

  • Circadian regulation is crucial for normal feeding behavior and physiology.
  • Disruptions in circadian rhythms, often due to diet, can have significant physiological consequences.
  • Further research is needed to elucidate these mechanisms in humans.