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Endogenous functioning and light response of the retinal clock in vertebrates
Natural activity and light response of the eye’s internal clock in vertebrates
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Abstract
Retinal cells in vertebrates exhibit divergent capabilities for generating circadian rhythms, with photoreceptors serving as the primary rhythm source in amphibians.
- Biological clocks are distributed in various tissues and synchronized by the environmental day/night cycle.
- The retina combines photoreception and circadian oscillator functions, crucial for adapting to daily light changes.
- Different retinal cell types can generate sustained circadian rhythms, but the expression of clock genes varies among vertebrates.
- In mammals, it is suggested that all retinal cells express the molecular components of the circadian clock.
- Light synchronization mechanisms play a significant role in regulating the retinal clock's function.
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