ArticleAnnals of medicine2023
Effects of bright light therapy on neuroinflammatory and neuroplasticity markers in a diurnal rodent model of Seasonal Affective Disorder.
Article in Annals of medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.
- Effectiveness of visible light for seasonal affective disorder: A systematic review and network meta-analysis.Medicine · 2025Pooled it
- Effects of light therapy on amygdala connectivity and serotoninergic system in young adults with subthreshold depression.Dialogues in clinical neuroscience · 2025Trial
- Central hypocretin/orexin administration alleviates sleep/wake disturbances, anhedonia, and neuroinflammation in an animal model of seasonal affective disorder.Annals of medicine · 2026Article
- Associations between wearable-device-measured daytime and nighttime light exposures and dementia risk: A prospective cohort study.General psychiatry · 2026Article
- Novel and emerging physical treatments for major depressive disorder.Fundamental research · 2025Review
- Combination Therapy Against Mood and Anxiety Disorders: Association Between Efficacy and White Blood Cell Count.Neuropsychiatric disease and treatment · 2025Article
- Light Therapy in Post-Traumatic Stress Disorder: A Systematic Review of Interventional Studies.Journal of clinical medicine · 2024Review
- Perinatal Depression and the Role of Synaptic Plasticity in Its Pathogenesis and Treatment.Behavioral sciences (Basel, Switzerland) · 2023Review
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
backgroundBright light therapy (BLT) is widely used for treating Seasonal Affective Disorder (SAD). However, the neural mechanisms underlying the therapeutic effects of BLT remain largely unexplored. The present study used a diurnal rodent (Nile grass rats; MATERIALS AND
methodsIn the present study, male and female grass rats were housed under the winter-like dim daytime light condition (lights on 600-1800 hr, 50 lux). The experimental groups received daily 1-h early morning BLT from 0600-0700 using full-spectrum light (10,000 lux), while the control groups received narrowband red light (λmax, 780 nm). Following 4 weeks of treatment, the expression of several neuroinflammatory or plasticity markers was examined in the medial prefrontal cortex (mPFC), basolateral amygdala (BLA), and the CA1 of the dorsal hippocampus.
resultsFor the neuroinflammatory markers, BLT reduced TNF-α in the BLA of females, and upregulated CD11b in the mPFC and IL6 in the BLA in males. For the neuroplasticity markers, BLT downregulated BDNF in the CA1 and TrkB in all three brain regions in females but upregulated BDNF in the BLA and CA1 in males.
conclusionsThese results indicate that the therapeutic effects of BLT on sleep, mood, and cognition may be attributed in part to mechanisms involving neuroinflammation and neuroplasticity in corticolimbic brain regions. Moreover, these effects appear to vary between sexes.
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