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Metabolic implications of circadian disruption
1Molecular Biology and Human Genetics Laboratory, Dr. Panjwani Center for Molecular Medicine and Drug Research (PCMD), International Center for Chemical and Biological Sciences (ICCBS), University of Karachi, Karachi, 75270, Pakistan.
Pflugers Archiv : European Journal of Physiology
|May 5, 2020
Summary
Circadian rhythms, regulated by internal biological clocks, are crucial for metabolic homeostasis. Disruption of these rhythms by modern lifestyles increases the risk of obesity, diabetes, and cardiovascular disease.
Area of Science:
- Chronobiology
- Metabolic science
- Physiology
Background:
- Circadian rhythms are 24-hour cycles generated by internal biological clocks in mammals, influencing physiology and behavior.
- These rhythms are synchronized by environmental cues (zeitgebers) and are vital for maintaining metabolic homeostasis.
- Disruptions to circadian rhythms are linked to metabolic disorders.
Purpose of the Study:
- To review the molecular mechanisms of circadian rhythms.
- To explain the physiological significance of circadian rhythms in metabolism.
- To discuss the metabolic implications of circadian disruption.
Main Methods:
- Literature review of circadian rhythms and metabolism.
- Elaboration of molecular mechanisms.
- Discussion of physiological roles and disruption impacts.
Main Results:
- Circadian clocks regulate numerous cellular, behavioral, and physiological processes, including metabolism.
- Disrupted circadian rhythms impair metabolic homeostasis, leading to altered eating patterns, glucose/lipid metabolism, and weight gain.
- This disruption elevates the risk of obesity, diabetes, metabolic syndrome, and cardiovascular disease.
Conclusions:
- Circadian rhythms play a fundamental role in metabolic regulation.
- Modern lifestyles can disrupt circadian rhythms, negatively impacting metabolic health.
- Further research is needed to explore knowledge gaps in circadian biology and metabolism.
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