Circadian Rhythm Dysfunction in Neurodegenerative Diseases: A Bidirectional Perspective and Therapeutic Potential

Nov 25, 2025Nature and science of sleep

Circadian rhythm problems in neurodegenerative diseases may affect each other and could have treatment possibilities.

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Abstract

Circadian rhythm disruptions are recognized in age-related such as Alzheimer's, Parkinson's, and Huntington's disease.

  • These disruptions may be causal factors that could manifest before clinical symptoms appear.
  • A bidirectional relationship may exist where neurodegenerative processes and circadian dysfunction exacerbate one another.
  • Core clock genes are involved in essential processes like redox balance, mitochondrial function, and neuroinflammation, which are often disrupted in these diseases.
  • Current understanding of the exact mechanisms linking circadian disruptions to neurodegeneration remains unclear.
  • Shared disruptions in across major neurodegenerative diseases have been observed, suggesting common underlying processes.
  • The potential for circadian-oriented interventions to stabilize rhythms and mitigate disease progression is highlighted, though current evidence has limitations.

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