ArticleNeuroscience2014
Attenuated orexinergic signaling underlies depression-like responses induced by daytime light deficiency.
Article in Neuroscience, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
33 citing papers in PubMed, 62 citations in OpenAlex.
- Central hypocretin/orexin administration alleviates sleep/wake disturbances, anhedonia, and neuroinflammation in an animal model of seasonal affective disorder.Annals of medicine · 2026Article
- A novel theory of rapid eye movement sleep as an integral component of the seasonal timekeeping apparatus.Frontiers in neuroscience · 2026Article
- Understanding the Biological Relationship between Migraine and Depression.Biomolecules · 2024Review
- SAD rats: Effects of short photoperiod and carbohydrate consumption on sleep, liver steatosis, and the gut microbiome in diurnal grass rats.Chronobiology international · 2024Article
- Effects of light therapy on sleep/wakefulness, daily rhythms, and the central orexin system in a diurnal rodent model of seasonal affective disorder.Journal of affective disorders · 2023Article
- Characteristics of Seltorexant-Innovative Agent Targeting Orexin System for the Treatment of Depression and Anxiety.Molecules (Basel, Switzerland) · 2023Review
- Use of experimental medicine approaches for the development of novel psychiatric treatments based on orexin receptor modulation.Neuroscience and biobehavioral reviews · 2023Review
- Effects of bright light therapy on neuroinflammatory and neuroplasticity markers in a diurnal rodent model of Seasonal Affective Disorder.Annals of medicine · 2023Article
- A review of the effect of the light environment of the VDT workspace on the "learning to learn" effect of video game training.Frontiers in neuroscience · 2023Review
- Analytic Background in the Neuroscience of the Potential Project "Hippocrates".Brain sciences · 2022Review
- Neurobiology of the Orexin System and Its Potential Role in the Regulation of Hedonic Tone.Brain sciences · 2022Review
- 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
- The Elusive "Switch Process" in Bipolar Disorder and Photoperiodism: A Hypothesis Centering on NADPH Oxidase-Generated Reactive Oxygen Species Within the Bed Nucleus of the Stria Terminalis.Frontiers in psychiatry · 2022Article
- Orexin (hypocretin) mediates light-dependent fluctuation of hippocampal function in a diurnal rodent.Hippocampus · 2021Article
- Circadian Rhythms of the Hypothalamus: From Function to Physiology.Clocks & sleep · 2021Review
- The darkness and the light: diurnal rodent models for seasonal affective disorder.Disease models & mechanisms · 2021Review
- Blue Light Deprivation Produces Depression-Like Responses in Mongolian Gerbils.Frontiers in psychiatry · 2020Article
- Orexinergic modulation of serotonin neurons in the dorsal raphe of a diurnal rodent, Arvicanthis niloticus.Hormones and behavior · 2019Article
- Light as a modulator of emotion and cognition: Lessons learned from studying a diurnal rodent.Hormones and behavior · 2019Review
- Daytime Light Intensity Modulates Spatial Learning and Hippocampal Plasticity in Female Nile Grass Rats (Arvicanthis niloticus).Neuroscience · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Light has profound effects on mood, as exemplified by seasonal affective disorder (SAD) and the beneficial effects of bright light therapy. However, the underlying neural pathways through which light regulates mood are not well understood. Our previous work has developed the diurnal grass rat, Arvicanthis niloticus, as an animal model of SAD (Leach et al., 2013a,b). By utilizing a 12:12-h dim light:dark (DLD) paradigm that simulates the lower light intensity of winter, we showed that the animals housed in DLD exhibited increased depression-like behaviors in the forced swim test (FST) and sweet solution preference (SSP) compared to animals housed in bright light during the day (BLD). The objective of the present study was to test the hypothesis that light affects mood by acting on the brain orexinergic system in the diurnal grass rat model of SAD. First, orexin A immunoreactivity (OXA-ir) was examined in DLD and BLD grass rats. Results revealed a reduction in the number of OXA-ir neurons in the hypothalamus and attenuated OXA-ir fiber density in the dorsal raphe nucleus of animals in the DLD compared to those in the BLD group. Then, the animals in BLD were treated systemically with SB-334867, a selective orexin 1 receptor (OX1R) antagonist, which led to a depressive phenotype characterized by increased immobility in the FST and a decrease in SSP compared to vehicle-treated controls. Results suggest that attenuated orexinergic signaling is associated with increased depression-like behaviors in grass rats, and support the hypothesis that the orexinergic system mediates the effects of light on mood.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.