Toxic Effect of Visible Light on Drosophila Life Span Depending on Diet Protein Content

Abstract We investigated the toxic effect of visible light on Drosophila life span in both sexes. The toxic effect of ultraviolet light on organisms is well known. However, the effects of illumination with visible light remain unclear. Here, we found that visible light could be toxic to Drosophila s...

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Bibliographic Details
Published in:The journals of gerontology. Series A, Biological sciences and medical sciences Biological sciences and medical sciences, 2019-01, Vol.74 (2), p.163-167
Main Authors: Shen, Jie, Zhu, Xiang, Gu, Yitian, Zhang, Chiqian, Huang, Jiahong, Xiao, Qing
Format: Article
Language:English
Subjects:
Aging
Diet
Drosophila
Life span
Light effects
Mortality
Organisms
Photocatalysis
Pleiotropy
Ultraviolet radiation
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Summary:Abstract We investigated the toxic effect of visible light on Drosophila life span in both sexes. The toxic effect of ultraviolet light on organisms is well known. However, the effects of illumination with visible light remain unclear. Here, we found that visible light could be toxic to Drosophila survival, depending on the protein content in diet. In addition, further analysis revealed significant interaction between light and sex and showed that strong light shortened life span by causing opposite direction changes in mortality rate parameters in females versus males. Our findings suggest that photoaging may be a general phenomenon and support the theory of sexual antagonistic pleiotropy in aging intervention. The results caution that exposure to visible light could be hazardous to life span and suggest that identification of the underlying mechanism would allow better understanding of aging intervention.
ISSN:1079-5006
1758-535X
DOI:10.1093/gerona/gly042