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Article Publish Status: FREE
Abstract Title:

The Pharmacological Effects of Lutein and Zeaxanthin on Visual Disorders and Cognition Diseases.

Abstract Source:

Molecules. 2017 Apr 20 ;22(4). Epub 2017 Apr 20. PMID: 28425969

Abstract Author(s):

Yu-Ping Jia, Lei Sun, He-Shui Yu, Li-Peng Liang, Wei Li, Hui Ding, Xin-Bo Song, Li-Juan Zhang

Article Affiliation:

Yu-Ping Jia

Abstract:

Lutein (L) and zeaxanthin (Z) are dietary carotenoids derived from dark green leafy vegetables, orange and yellow fruits that form the macular pigment of the human eyes. It was hypothesized that they protect against visual disorders and cognition diseases, such as age-related macular degeneration (AMD), age-related cataract (ARC), cognition diseases, ischemic/hypoxia induced retinopathy, light damage of the retina, retinitis pigmentosa, retinal detachment, uveitis and diabetic retinopathy. The mechanism by which they are involved in the prevention of eye diseases may be due their physical blue light filtration properties and local antioxidant activity. In addition to their protective roles against light-induced oxidative damage, there are increasing evidences that L and Z may also improve normal ocular function by enhancing contrast sensitivity and by reducing glare disability. Surveys about L and Z supplementation have indicated that moderate intakes of L and Z are associated with decreased AMD risk and less visual impairment. Furthermore, this review discusses the appropriate consumption quantities, the consumption safety of L, side effects and future research directions.

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Sayer Ji
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