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Short-term exposure to dim light at night disrupts rhythmic behaviors and causes neurodegeneration in fly models of tauopathy and Alzheimer's disease
Short-term dim light at night disrupts daily rhythms and leads to brain cell damage in fly models of Alzheimer's disease
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Abstract
Drosophila flies exposed to 10 lux dim light at night exhibited disrupted circadian rhythms and increased neurodegeneration.
- Accumulation of phosphorylated tau proteins is linked to the onset of Alzheimer's disease.
- Patients with Alzheimer's disease show altered sleep-wake cycles and locomotion issues.
- Flies with overexpressed human tau protein replicate symptoms of Alzheimer's disease, including neurodegeneration.
- Exposure to dim light at night for 3 days led to increased levels of phosphorylated tau proteins in the flies.
- Disrupted circadian rhythms and altered sleep-wake behavior were observed following nighttime light exposure.
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