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Through-the-Wall Blood Sampling Method to Minimize Sleep Disruption in Clinical Settings
Published on: June 13, 2025
Possible contribution of chronobiology to cardiovascular health
Miho Sato1, Takahiro Matsuo1, Henry Atmore2
1The Research Institute for Time Studies, Yamaguchi University Yamaguchi, Japan.
Insights
Circadian rhythms, or daily biological cycles, influence physiology and cardiovascular health. A new non-invasive method using hair follicle cells can assess internal clock regulation for diagnosing circadian rhythm disorders.
Area of Science:
- Physiology
- Molecular Biology
- Cardiovascular Medicine
Background:
- Daily variations in physiology are known as circadian rhythms.
- Circadian oscillations in clock gene expression impact molecular functions.
- Circadian rhythm dysfunction is linked to cardiovascular diseases.
Purpose of the Study:
- Review the molecular mechanisms of the circadian clock.
- Examine the transmission of circadian effects to cardiovascular functions.
- Discuss the impact of circadian dysfunction on cardiovascular diseases.
- Introduce a novel non-invasive method for assessing human circadian time-regulation.
Main Methods:
- Literature review on circadian clock mechanisms and cardiovascular effects.
- Introduction of a novel non-invasive method utilizing hair follicle cells.
Main Results:
- Circadian clock gene expression drives physiological variations.
- Circadian dysfunction contributes to cardiovascular disease development.
- Hair follicle cells offer a viable non-invasive approach for circadian assessment.
Conclusions:
- Understanding circadian rhythms is crucial for clinical settings.
- The novel hair follicle cell method aids in diagnosing circadian rhythm disorders.
- Assessing internal clock operation is key for managing cardiovascular health.
Abstract:
The daily variations found in many aspects of physiology are collectively known as circadian rhythm (from "circa" meaning "about" and "dien" meaning "day"). Circadian oscillation in clock gene expression can generate quantitative or functional variations of the molecules directly involved in many physiological functions. This paper reviews the molecular mechanisms of the circadian clock, the transmission of circadian effects to cardiovascular functions, and the effects of circadian dysfunction on cardiovascular diseases. An evaluation of the operation of the internal clock is needed in clinical settings and will be an effective tool in the diagnosis of circadian rhythm disorders. Toward this end, we introduce a novel non-invasive method for assessing circadian time-regulation in human beings through the utilization of hair follicle cells.
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