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Updated: May 12, 2026
06:53
Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
Published on: November 11, 2016
Central control of peripheral circadian oscillators
Michael Menaker1, Zachary C Murphy, Michael T Sellix
1Department of Biology, University of Virginia, Charlottesville, VA, United States.
Current Opinion in Neurobiology
|March 30, 2013
Summary
The body
Area of Science:
- Neuroscience
- Chronobiology
- Physiology
Background:
- The suprachiasmatic nucleus (SCN) and other central pacemakers regulate the body's circadian network.
- This network influences nearly every organ, with phase control being crucial for function.
- Peripheral oscillators in tissues adapt their phase relationships to external cues and central pacemakers.
Purpose of the Study:
- To explore the regulatory mechanisms of the circadian network.
- To understand the importance of phase control in maintaining physiological homeostasis.
- To identify known and potential signals involved in synchronizing circadian rhythms.
Main Methods:
- Review of existing literature on circadian biology and neuroendocrinology.
- Analysis of signaling pathways involved in inter-organ communication.
- Hypothetical modeling of pacemaker interactions and signal transduction.
Main Results:
- The SCN and at least two other unidentified central pacemakers orchestrate the circadian network.
- Autonomic nervous system, pineal/adrenal glands, behavioral cycles, and body temperature rhythms are known synchronizing signals.
- Numerous unknown signals likely contribute to maintaining phase relationships within the network.
Conclusions:
- Disruption of the circadian network can lead to severe pathology.
- Maintaining proper phase relationships is essential for health.
- Further research is needed to identify all components and signals within this complex system.
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