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Research: ZHANG and COLLEAGUES
Listed in Issue 245
Abstract
ZHANG and COLLEAGUES, (1)Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science & Technology, Tianjin 300457, China zhangzesheng@tust.edu.cn investigated the effect of lutein on the lifespan of Drosophila melanogaster.
Background
Lutein is one of the major carotenoids in most fruits and vegetables.
Methodology
The effect of lutein on the lifespan of Drosophila melanogaster was investigated.
Results
Results revealed that 0.1mg lutein/ml diet could prolong their mean lifespan from 49.0 to 54.6 days. This was consistent with a significant reduction in malonyldialdehyde (MDA) level and increase in antioxidant enzyme activities of the flies fed with lutein-treated diet compared with those fed with basal diet. Paraquat (PQ) and H2O2 treatment tests demonstrated that lutein could prolong the survival time of the flies. Real-time polymerase chain reaction (RT-PCR) analysis indicated the gene expression of superoxide dismutase (SOD; SOD1 and SOD2), and catalase (CAT) in the lutein-treated group was up-regulated relative to that of the control group.
Conclusion
It was concluded that the lifespan-prolonging activity of lutein was partially by up-regulation of endogenous antioxidant enzymes.
References
Zhang Z(1), Han S, Wang H, Wang T. Lutein extends the lifespan of Drosophila melanogaster. Arch Gerontol Geriatr. 58(1):153-9. Jan-Feb 2014. doi: 10.1016/j.archger.2013.07.007. Epub Aug 8 2013.
