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Updated: May 14, 2025
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Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
Published on: November 11, 2016
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Human genetic variation determines 24-hour rhythmic gene expression and disease risk
Ying Chen1, Panpan Liu1, Aniko Sabo2
1Division of Diabetes, Endocrinology, and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX, USA.
Nature Communications
|May 9, 2025
Summary
Genetic variations influence daily biological rhythms by identifying rhythmic QTLs (quantitative trait loci) that affect gene expression. This impacts human health and disease risk, enabling personalized chronotherapy.
Area of Science:
- Genomics
- Chronobiology
- Human Physiology
Background:
- 24-hour biological rhythms are crucial for homeostasis, and disruptions increase disease risk.
- The genetic basis of biological rhythms involves core clock genes, but individual genetic variation's role in rhythmic gene expression and disease is unclear.
Purpose of the Study:
- To map interactions between temporal gene expression and genotype.
- To identify genetic loci (rhythmic QTLs) that regulate rhythmic gene expression in humans.
Main Methods:
- Mapping quantitative trait loci (QTLs) for rhythmic gene expression.
- Analyzing genotype-phenotype correlations in gene expression patterns.
Main Results:
- Identified novel rhythmic QTLs (rhyQTLs) associated with specific genotypes.
- Discovered previously unappreciated rhythmic genes influenced by rhyQTLs in human subpopulations.
- Found rhyQTLs significantly impact chronophysiological processes like bile acid and lipid metabolism.
Conclusions:
- rhyQTLs elucidate genetic mechanisms of gene rhythmicity.
- Provides insights into genetic contributions to human disease risk.
- Enables development of precision chronotherapeutic strategies.
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