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Updated: Apr 25, 2026

Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
Published on: November 11, 2016
[Clock genes and circadian rhythm of blood pressure]
Insights
Cardiovascular function shows daily rhythms regulated by the internal biological clock. Disruptions to this circadian rhythm increase the risk of cardiovascular diseases like hypertension.
Area of Science:
- Cardiovascular physiology
- Chronobiology
- Molecular biology
Context:
- Circadian rhythms regulate physiological processes, including blood pressure and heart rate.
- Mammalian clock genes form intricate feedback loops controlling biological clocks.
- Shift work is linked to increased ischemic heart disease risk, highlighting circadian disruption's impact.
Purpose:
- To explore the relationship between the circadian clock and cardiovascular disease pathogenesis.
- To understand the biological relevance of the internal clock in cardiovascular health.
Summary:
- Cardiovascular functions exhibit circadian oscillations regulated by molecular clock genes.
- Disrupting the circadian rhythm in mice models is linked to cardiovascular diseases, including hypertension.
- Shift work is associated with higher risks of ischemic heart disease.
Impact:
- Findings may lead to novel chronotherapeutic strategies for cardiovascular disease prevention and treatment.
- Understanding the internal clock's role offers new avenues for managing hypertension and other cardiovascular conditions.
Abstract:
Cardiovascular function such as blood pressure and heart rate exhibits circadian oscillation. The circadian rhythmicity had been supposed to be regulated by an internal biological. The identification and characterization of mammalian clock genes revealed that the biological clock is composed of feedback loops of transcription factors. Previous studies reported that night shift workers had high risk of ischemic heart disease, suggesting a close association between cardiovascular diseases and circadian rhythm. In addition, recent studies obtained from the genetically engineered mice with disrupted circadian rhythm have revealed that the circadian clock is closely related to the pathogenesis of cardiovascular diseases including hypertension. Understanding the biological relevance of the internal clock in cardiovascular diseases will provide a novel chronotherapeutic approaches to the prevention and treatment of cardiovascular diseases.
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