ArticleScientific reports2017
Light color importance for circadian entrainment in a diurnal (Octodon degus) and a nocturnal (Rattus norvegicus) rodent.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Simulated natural daylight and twilight modulate activity and light sampling behaviour in mice.BMC biology · 2026Article
- Adaptation under constant light or dark: a challenge to the pineal.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2025Article
- Exploring efficient and effective mammalian models for Alzheimer's disease.Frontiers in aging neuroscience · 2025Review
- Dynamics of ventilatory pattern variability and Cardioventilatory Coupling during systemic inflammation in rats.Frontiers in network physiology · 2023Article
- Keep Your Mask On: The Benefits of Masking for Behavior and the Contributions of Aging and Disease on Dysfunctional Masking Pathways.Frontiers in neuroscience · 2022Review
- Nonlinear relationship between sleep duration and non-suicidal self-injurious behaviour among Chinese adolescents.BMC psychiatry · 2021Article
- Nutritional implications of feeding free-living birds in public urban areas.Journal of animal physiology and animal nutrition · 2021Article
- Widespread Doublecortin Expression in the Cerebral Cortex of theFrontiers in neuroanatomy · 2021Article
- Analysis of changes in cardiac circadian rhythms of RR and QT induced by a 60-day head-down bed rest with and without nutritional countermeasure.European journal of applied physiology · 2020Article
- Circadian rhythm disruption and mental health.Translational psychiatry · 2020Review
- Effects of the colour of photophase light on locomotor activity in a nocturnal and a diurnal South African rodent.Biology letters · 2019Article
- Effect of Single and Combined Monochromatic Light on the Human Pupillary Light Response.Frontiers in neurology · 2018Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The central circadian pacemaker (Suprachiasmatic Nuclei, SCN) maintains the phase relationship with the external world thanks to the light/dark cycle. Light intensity, spectra, and timing are important for SCN synchronisation. Exposure to blue-light at night leads to circadian misalignment that could be avoided by using less circadian-disruptive wavelengths. This study tests the capacity of a diurnal Octodon degus and nocturnal Rattus norvegicus to synchronise to different nocturnal lights. Animals were subjected to combined red-green-blue lights (RGB) during the day and to: darkness; red light (R); combined red-green LED (RG) lights; and combined red-green-violet LED (RGV) lights during the night. Activity rhythms free-ran in rats under a RGB:RG cycle and became arrhythmic under RGB:RGV. Degus remained synchronised, despite the fact that day and night-time lighting systems differed only in spectra, but not in intensity. For degus SCN c-Fos activation by light was stronger with RGB-light than with RGV. This could be relevant for developing lighting that reduces the disruptive effects of nocturnal light in humans, without compromising chromaticity.
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