Short-wavelength artificial light affects visual neural pathway development in mice

Zhang, Xuhong; Wang, Xiaoyu; Zhu, Haifei; Zhang, Dongyan; Chen, Jinbo; Wen, Yingying; Li, Yanqing; Jin, Le; Xie, Changsheng; Guo, Dongyu; Luo, Tao; Z., Tong, J.; Zhou, Yifeng; Ye, Shen

doi:10.1016/j.ecoenv.2023.115282

Ecotoxicology and Environmental Safety

2023

DOI: 10.1016/j.ecoenv.2023.115282

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Short-wavelength artificial light affects visual neural pathway development in mice

Xuhong Zhang¹,

Xiaoyu Wang²,

Haifei Zhu³

et al.

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2024

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Violet Light Effects on the Circadian Rest–Activity Rhythm and the Visual System

Domínguez-Valdés,

Bonnin-Arias,

Alvarez-Peregrina

et al. 2024

Clocks & Sleep

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Background: Rooms illuminated by “black light” (<400 nm wavelength) has become popular, but there is not enough scientific evidence to support its implementation. This study aims to assess the effects of violet light (392 nm) on the circadian rest–activity rhythm and the visual system through animal experimentation. Materials and results: Five groups of four mice were exposed to different white light, violet light, and dark periods, and their circadian rhythm was analyzed by measuring the circadian period using rest–activity cycles. Electroretinographic recordings and structural analysis of the retina were also performed on experimental animals. Results: Our study demonstrates that mice present normal circadian activity during exposure to violet light, taking rest not only under white light but under violet lighting periods. However, mice suffered a decrease in electrical retinal response after exposure to violet light as measured by electroretinography. Nevertheless, no structural changes were observed in the retinas of the animals under different lighting conditions. Conclusions: Violet light elicits circadian rest–activity rhythm in mice but alters their visual function, although no structural changes are observed after short periods of violet light exposure.

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Violet Light Effects on the Circadian Rest–Activity Rhythm and the Visual System

Domínguez-Valdés,

Bonnin-Arias,

Alvarez-Peregrina

et al. 2024

Clocks & Sleep

View full text Add to dashboard Cite

show abstract

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Short-wavelength artificial light affects visual neural pathway development in mice

Cited by 1 publication

References 59 publications

Violet Light Effects on the Circadian Rest–Activity Rhythm and the Visual System

Violet Light Effects on the Circadian Rest–Activity Rhythm and the Visual System

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