Related Experiment Video
Updated: Dec 27, 2025
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Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
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When Rhythms Meet the Blues: Circadian Interactions with the Microbiota-Gut-Brain Axis
Emily M Teichman1, Kenneth J O'Riordan1, Cormac G M Gahan2
1APC Microbiome Ireland, University College Cork, Cork, Ireland.
Cell Metabolism
|March 5, 2020
Summary
The gut microbiota and brain communicate bidirectionally, influenced by daily rhythms. Disruptions in this microbiota-gut-brain axis and circadian cycles impact disease, necessitating further research into their molecular mechanisms.
Area of Science:
- Neuroscience
- Microbiology
- Chronobiology
Background:
- The microbiota-gut-brain axis describes communication between gut microbes and the brain.
- Gut microbiota composition varies diurnally, synchronized by host circadian rhythms.
- A diverse microbiota is crucial for regulating host circadian pathways.
Purpose of the Study:
- To review current knowledge on the bidirectional relationship between the microbiota-gut-brain axis and circadian rhythms.
- To highlight how these interactions influence disease pathology and severity.
- To identify gaps in understanding molecular mechanisms.
Main Methods:
- Literature review of recent studies on the microbiota-gut-brain axis and circadian rhythms.
- Synthesis of data on the interplay between microbial communities, host rhythms, and neurological function.
- Identification of research trends and future directions.
Main Results:
- Evidence shows a significant link between the microbiota-gut-brain axis, circadian rhythms, and disease.
- Disruptions in cyclical microbe-host interactions affect disease pathology and severity.
- Promising data exists, but molecular mechanisms require deeper investigation.
Conclusions:
- The microbiota-gut-brain axis and circadian rhythms are interconnected and influence health and disease.
- Further research is needed to elucidate how these systems modulate disease risk and severity.
- Understanding the molecular underpinnings of these interactions is critical.
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