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Lutein Protects Eye From Adverse Effects Of Exposure To Light

June 12, 2011: 11:07 AM EST
A study with mice by Japanese researchers revealed that Lutein supplements may help protect the eye from potentially damaging effects of strong light. Researchers analyzed the effects of light on the retinas of a group of Balb/c mice fed with a lutein-enhanced diet and another group fed a normal diet. Exposure to light increased the presence of γ-H2AX, a double-strand breaks (DSBs) marker in DNA, in photoreceptor cells. Lutein, however, eased this up-regulation. Also, lutein diet increased the expression of eyes absent (EYA), which supports DNA repair, and cells' health and survival.
Mariko Sasaki, Kenya Yuki, Toshihide Kurihara, Seiji Miyake, Kosuke Noda, Saori Kobayashi, Susumu Ishida, Kazuo Tsubota, Yoko Ozawa , "Biological role of lutein in the light-induced retinal degeneration", Journal of Nutritional Biochemistry , June 12, 2011, © Elsevier Inc.
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