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Circadian Rhythms, NRF2 Signalling and Redox Homeostasis: A Holy Grail for a Healthy Life Course?
Elizabeth Sutton1, Vanja Pekovic-Vaughan1
1Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK; MRC-Arthritis UK Centre for Integrated research into Musculoskeletal Ageing (CIMA).
The circadian timing system and NRF2 signaling regulate redox balance, impacting health across life. Lifestyle and NRF2-enhancing strategies can restore this balance, promoting lifelong health and preventing age-related diseases.
Area of Science:
- Integrative biology
- Chronobiology
- Redox biology
Background:
- The body's circadian clock coordinates physiological processes, but its interaction with redox signaling in health and aging is unclear.
- Redox homeostasis is crucial for cellular functions and stress adaptation, declining with age.
Purpose of the Study:
- To integrate circadian timing, NRF2 signaling, and redox balance into a unified framework for health across the lifespan.
- To explore how circadian clocks regulate NRF2 activity and antioxidant responses.
Main Methods:
- Review of in vitro, in vivo, and human studies.
- Integration of existing research on circadian rhythms, NRF2 pathway, and redox homeostasis.
Main Results:
- A unified circadian-NRF2-redox axis influences health and disease susceptibility.
- Circadian/NRF/redox misalignments amplify oxidative stress and accelerate aging.
- Predictable redox oscillations gate metabolism, repair, and immune responses.
Conclusions:
- Lifestyle interventions (sleep, feeding schedules) and NRF2-enhancing drugs can restore redox balance and improve health outcomes.
- Targeting redox-circadian interactions offers a unified approach for preventative health and chronomedicine.
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