Summary
This dissertation demonstrates that circadian disruption impairs both reproductive neuroendocrine function and wound healing in Siberian hamsters, highlighting the SCN's critical coordinating role across multiple physiological systems. While conducted in an animal model, the findings underscore that lighting environments which disrupt circadian timing may have broad biological consequences beyond sleep, including immune competence.
Key Findings
- Circadian arrhythmia in Siberian hamsters compromised reproductive neuroendocrine function and fertility, confirming the SCN's necessary role in coordinating reproductive timing.
- Circadian disruption impaired cutaneous wound healing, indicating that circadian arrhythmia negatively affects a key coordinated immune response.
- Innate immune responses to infection were found to suppress reproductive function via identifiable molecular mechanisms, suggesting bidirectional circadian-immune-reproductive crosstalk.
Categories
Sleep & Circadian Health: Investigates how the SCN circadian pacemaker coordinates reproductive and immune function, using a model of circadian arrhythmia in Siberian hamsters.
The Science of Light: Examines the mechanistic role of circadian disruption (light-dark cycle manipulation) on downstream biological systems including neuroendocrine and immune responses.
Author(s)
E Cable
Publication Year
2016
Related Publications
Sleep & Circadian Health
- Phototransduction by retinal ganglion cells that set the circadian clock
- The mammalian circadian timing system: organization and coordination of central and peripheral clocks
- The twoāprocess model of sleep regulation: a reappraisal
- Melanopsin is required for non-image-forming photic responses in blind mice
- Strange vision: ganglion cells as circadian photoreceptors
The Science of Light
- Phototransduction by retinal ganglion cells that set the circadian clock
- Color appearance models
- The mammalian circadian timing system: organization and coordination of central and peripheral clocks
- Diminished pupillary light reflex at high irradiances in melanopsin-knockout mice
- Melanopsin is required for non-image-forming photic responses in blind mice