Results 31 to 40 of about 16,101 (183)
The Photobiology of Lutein and Zeaxanthin in the Eye [PDF]
Journal of Ophthalmology, 2015 Lutein and zeaxanthin are antioxidants found in the human retina and macula. Recent clinical trials have determined that age- and diet-related loss of lutein and zeaxanthin enhances phototoxic damage to the human eye and that supplementation of these carotenoids has a protective effect against photoinduced damage to the lens and the retina.
Joan E. Roberts, Jessica Dennison
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Research Progress on the Zeaxanthin Extraction Technology and Biological Activity Mechanism
Liang you shipin ke-jiZeaxanthin is a carotenoid with notable biological activity, demonstrates effective visual protection, antioxidant properties, and anti-tumor effects. However, zeaxanthin is unstable under light conditions and prone to reactions.
LI Chao-qi +5 more
doaj +1 more source
Zeaxanthin epoxidation - an in vitro approach.
Acta Biochimica Polonica, 2012 Zeaxanthin epoxidase (ZE) is an enzyme operating in the violaxanthin cycle, which is involved in photoprotective mechanisms. In this work model systems to study zeaxanthin (Zx) epoxidation were developed. Two assay systems are presented in which epoxidation of Zx was observed.
Kuczyńska, Paulina +6 more
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Verification of Meso-Zeaxanthin in Fish [PDF]
Journal of Food Processing & Technology, 2014 The carotenoids lutein (L), zeaxanthin (Z), and meso-zeaxanthin (MZ) accumulate in the central retina (the macula), where they are collectively known as macular pigment (MP). MP has been shown to enhance visual function in both diseased and non-diseased retinae, and therefore an understanding and confirmation of, the origins of these carotenoids is ...
Nolan, John M +5 more
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Molecules, 2019 Zeaxanthin and lutein have a wide range of pharmacological applications. In this study, we conducted systematic experimental research to optimize antioxidant extraction based on detection, extraction, process amplification, and purification.
Litao Wang +6 more
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The Effect of Zeaxanthin on the Visual Acuity of Zebrafish. [PDF]
PLoS ONE, 2015 Oral supplementation of carotenoids such as zeaxanthin or lutein which naturally occur in human retina have been shown to improve vision and prevent progression of damage to advanced AMD in some studies.
Eric A Saidi +2 more
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Frontiers in Plant Science, 2017 The dynamics of non-photochemical quenching (NPQ) of chlorophyll fluorescence and the dynamics of xanthophyll conversion under different actinic light conditions were studied in intact leaves of Arabidopsis thaliana. NPQ induction was investigated during
Eugen Kress, Peter Jahns
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Proceedings, 2020 Zeaxanthin is a dietary carotenoid accumulated in the macula in order to reduce photoreceptor oxidation by blue light. Damage caused to photoreceptor cells in the human eye leads to macular degeneration, which is the leading cause of blindness in ...
Rimjhim Agarwal +4 more
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From apex to base: Uncovering spatial metabolic adaptation in Antarctic mosses
Bulletin of the Korean Chemical Society, EarlyView.Antarctic mosses survive extreme cold, desiccation, UV exposure, and oxidative stress. We analyzed three species by separating apical, middle, and basal zones. Each zone showed distinct metabolite patterns and biological roles, revealing spatial metabolic specialization. The results suggest that whole‐plant survival depends on coordinated contributions
Fatima Tuz Zahra +7 more
wiley +1 more source
Antioxidants, 2021 Dehydrolutein accumulates in substantial concentrations in the retina. The aim of this study was to compare antioxidant properties of dehydrolutein with other retinal carotenoids, lutein, and zeaxanthin, and their effects on ARPE-19 cells.
Małgorzata B. Różanowska +3 more
doaj +1 more source