Circadian Metabolomics in Time and Space.

Area of Science:

• Biochemistry
• Chronobiology
• Metabolomics

Background:

• Circadian rhythms influence human health and disease, but mechanisms linking disruption to metabolic disorders are emerging.
• Omics-based tools, particularly metabolomics, enable comprehensive temporal and spatial monitoring of cellular events.
• Circadian metabolomics studies the 24-hour metabolome, providing insights into metabolic regulation.

Purpose of the Study:

• To review and contextualize data from circadian metabolomics experiments.
• To elucidate the role of circadian rhythms in metabolic health and disease.
• To explore the biomarker potential of circadian metabolic profiles.

Main Methods:

• Application of high-throughput omics technologies for simultaneous monitoring of cellular events.
• Analysis of temporal and spatial data including gene expression, metabolite abundance, and localization.
• Review of published circadian metabolomics studies across various human biofluids and animal tissues.

Main Results:

• Consistent identification of prevalent 24-hour rhythms in nearly all tissues and metabolic pathways.
• Demonstration that tissue metabolic rhythms are directed by internal 24-hour biological clocks.
• Establishment of circadian metabolomics as a routine approach for studying metabolism.

Conclusions:

• Circadian metabolomics provides critical insights into the link between biological clocks and metabolic health.
• Widespread metabolic rhythms highlight the pervasive influence of circadian regulation on physiology.
• Circadian metabolic profiles hold significant potential for novel biomarker discovery in metabolic diseases.