Although sleep appears to be broadly conserved in animals, the physiological functions of sleep remain unclear. In this study, we sought to identify a physiological defect common to a diverse group of short-sleeping Drosophila mutants, which might provide insight into the function and regulation of sleep. We found that these short-sleeping mutants share a common phenotype of sensitivity to acute oxidative stress, exhibiting shorter survival times than controls. We further showed that increasing sleep in wild-type flies using genetic or pharmacological approaches increases survival after oxidative challenge. Moreover, reducing oxidative stress in the neurons of wild-type flies by overexpression of antioxidant genes reduces the amount of sleep. Together, these results support the hypothesis that a key function of sleep is to defend against oxidative stress and also point to a reciprocal role for reactive oxygen species (ROS) in neurons in the regulation of sleep.
A bidirectional relationship between sleep and oxidative stress in Drosophila
Vanessa M Hill,Reed M. O’Connor,Gunter B Sissoko,Ifeoma Irobunda,Stephen Leong,J. Canman,N. Stavropoulos,M. Shirasu-Hiza
Published 2018 in PLoS Biology
ABSTRACT
PUBLICATION RECORD
- Publication year
2018
- Venue
PLoS Biology
- Publication date
2018-07-01
- Fields of study
Biology, Medicine, Environmental Science
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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