Summary
This study examined how different light wavelengths (white, blue, green, red) affect obesity progression in mice fed high-fat diets over 8 weeks. Blue light specifically worsened fat tissue hypertrophy, glucose dysregulation, and inflammation by elevating corticosterone and disrupting circadian clock genes in white adipose tissue.
Key Findings
- Blue light significantly increased weight gain and adipose tissue mass in high-fat diet mice compared to white or red light.
- Blue light elevated plasma corticosterone levels, which drove circadian clock gene dysregulation in fat tissue.
- Red light did not exacerbate high-fat diet-induced metabolic dysfunction, suggesting wavelength matters for light pollution health impacts.
Categories
Sleep & Circadian Health: Blue light disrupts circadian clock gene expression in adipose tissue, driving metabolic dysfunction
The Science of Light: Study isolates specific light wavelengths to understand their differential biological effects on metabolism
Author(s)
Q Guan, Y Li, Z Wang, J Cao, Y Dong, F Ren, Y Chen
Publication Year
2022
Number of Citations
2
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