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Updated: Jul 4, 2026

Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
Published on: November 11, 2016
Molecular clocks, type 2 diabetes and cardiovascular disease
Madhu J Prasai1, Jyothis T George, Eleanor M Scott
1Division of Cardiovascular and Diabetes Research, The Leeds Institute of Genetics Health and Therapeutics, Clarendon Way, University of Leeds, Leeds, LS2 9JT, UK.
Circadian rhythm disruption, influenced by environmental and genetic factors, is increasingly linked to the development of obesity, type 2 diabetes, and cardiovascular disease. Understanding the molecular clock
Area of Science:
- Endocrinology and Metabolism
- Chronobiology
- Public Health
Background:
- The Western world faces an epidemic of type 2 diabetes and cardiovascular disease, sharing a common basis in insulin resistance and metabolic syndrome.
- Environmental changes interacting with genetic predisposition are driving these increases.
- Biological processes are intrinsically tied to the Earth's 24-hour light-dark cycle, regulated by an endogenous molecular clock.
Purpose of the Study:
- To review current knowledge on the role of circadian rhythm disruption in the pathogenesis of metabolic and cardiovascular diseases.
- To explore the interplay between the molecular clock, environmental factors, and disease development.
Main Methods:
- Review of recent epidemiological evidence.
- Analysis of animal data.
- Synthesis of current scientific literature on circadian rhythms and metabolic disease.
Main Results:
- Disturbance of circadian rhythms, affecting the molecular clock, is implicated in the development of obesity.
- Evidence suggests a pivotal role for circadian disruption in the pathogenesis of type 2 diabetes.
- Circadian rhythm dysfunction is increasingly recognized as a factor in cardiovascular disease development.
Conclusions:
- Disruption of the body's internal clock is a significant factor in the current epidemics of obesity, type 2 diabetes, and cardiovascular disease.
- Environmental and genetic influences on the molecular clock are critical areas for future research and potential therapeutic interventions.
- Maintaining circadian rhythm integrity is crucial for metabolic and cardiovascular health.
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