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Showing 1 to 20 of 25 for “"zeaxanthin"”.
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Lutein, Zeaxanthin, and Omega-3-fatty acids: Sources, Intakes, Bioavailability, and Associated risk for Age-related Macular Degeneration
… is overwhelming evidence supporting lutein and zeaxanthin as beneficial to eye health. Age-related Macular Degeneration (AMD), one of the leading causes of blindness in Australia and globally, has been associated with inadequate dietary lutein (L) and zeaxanthin (Z) intakes. This study aimed to …
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Macular pigment optical density and academic achievement among preadolescent children
… MPOD relates with dietary intake of lutein and zeaxanthin, and to determine if lutein and zeaxanthin intake would mediate the relationship between MPOD and academic performance. Academic performance was assessed using the Kaufman Test of Academic and Educational Achievement II (KTEA). Habitual …
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Exploring the potential resource recovery from pot ale utilising microalgae and novel LED photobioreactors.
… concentrations of high value carotenoid pigment zeaxanthin. It was observed in this study that the production of zeaxanthin and echinenone by Synechocystis sp. was successfully up-regulated by 35% and 141% (respectively) when using light tracking conditions. C. sorokiniana displayed the highest …
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DOSE RANGING STUDY OF LUTEIN SUPPLEMENTATION IN ELDERLY WITH AND WITHOUT AGE RELATED MACULAR DEGENERATION
… intake of two dietary carotenoids, lutein and zeaxanthin that accumulate in the human macula, are at a reduced risk of AMD. Possible role of lutein and zeaxanthin in the prevention of AMD has been attributed to their antioxidant function and their ability to act as optical filters. The …
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Gene switches and their applications in eukaryotic systems
… utility of the system, we assembled the 5-gene zeaxanthin biosynthetic pathway in a single step and showed the ligand dependent, coordinated expression of all 5 genes as well as the tightly-regulated production of zeaxanthin.
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Assessment of methods to screen for carotenoids in yellow-fleshed potato germplasm
… (FC 1) and dark yellow-fleshed (FC 2) genotypes. Zeaxanthin was the major carotenoid detected among the 60 selections/cultivars evaluated. The association between tuber flesh chroma and carotenoid content was analyzed. Results from Pearson correlation analysis revealed positive correlations …
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Nutrition, Inflammation and Lung Function in Middle-aged Men
… levels of retinol, lutein, zeaxanthin, ß-cryptoxanthin, α-carotene and ß-carotene were positively correlated with lung function in the cross-sectional analysis. There were also some longitudinal associations between baseline retinol, zeaxanthin, β-cryptoxanthin and 10 year …
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Cellular reprogramming in eukaryotes
… utility of the system, we assembled the 5-gene zeaxanthin biosynthetic pathway in a single step and showed the ligand dependent, coordinated expression of all 5 genes as well as the tightly-regulated production of zeaxanthin. In the second half, we will look into reprogramming via the …
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Laying-Sequence Variation in Yolk Carotenoids of Eastern Bluebirds
… yolks of Eastern Bluebirds: lutein, β-carotene, zeaxanthin, astaxanthin, and β-cryptoxanthin. As predicted, the egg mass, egg length, and egg width did not vary significantly across the clutch.</p>
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Antioxidant Potential in Broccoli and Observations on Flavor in a Segregating Broccoli Population (Brassica Oleracea)
… with two carotenoids (lutein r = 0.57; zeaxanthin r = 0.81; p < 0.05) in the lipid fractions. DCFH-DA assay results showed that both water and lipid extracts of broccoli could significantly inhibit production of free radicals in HepG2 cells and that the effect was not correlated with …
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INTERRELATIONSHIPS BETWEEN MACULAR CAROTENOIDS, RETINAL MORPHOMETRY, AND COGNITIVE FUNCTION IN PERSONS WITH MULTIPLE SCLEROSIS
… substantial attention. Recently, lutein and zeaxanthin, dietary xanthophylls, have been shown to be associated with cognitive health. Although xanthophylls are not recognized to be essential, their lack of endogenous de novo synthesis necessitates regular dietary consumption to derive …
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Investigating determinants of macular pigment optical density and macular pigment distribution in adults aged 45--73: Can enhanced analytical techniques improve the ability to predict macular pigment status?
… C, and iron.</p><p>Mean serum lutein and lutein/zeaxanthin concentrations for the sample were significantly associated with MPOD at the 0.167°, 0.50°, 1.00° sites, and CMPV results. Cholesterol, LDL-C, and HDL-C were not associated with MPOD while triglycerides were significantly …
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Role of xanthophyll and water-water cycles in the protection of photosynthetic apparatus in Arbutus unedo and Arabidopsis thaliana
… violaxanthin (V) to antheraxanthin (A) and zeaxanthin (Z) defending the photosynthetic apparatus from excess of light. Another important biological pathway is the chloroplast water-water cycle, which is referred to the electrons from water generated in PSII reducing atmospheric O2 to water …
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Impact of macular pigment optical density on photophobia threshold
<p>Two carotenoids, lutein and zeaxanthin, accumulate in the central retina where they are collectively referred to as macular pigment (MP). By absorbing short-wavelength light, MP may attenuate photophobia (PP)---visual discomfort induced by normal light exposure---for targets composed of …
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Genetic Analysis of Variation for Carotenoids and Tocopherols in Maize
… beta-carotene, beta-cryptoxanthin, lutein, and zeaxanthin and three tocopherols, alpha-tocopherol, delta-tocopherol, and gamma-tocopherol. Composite Interval Mapping was used to identify QTL. Total carotenoids and total tocopherols were calculated to identify QTL with affects on the total …
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Refining Fruit-Zone Leaf Removal for Red-Fruited Bordeaux Grape Varieties Grown in a Humid Environment
… leaf removal, and this was particularly true for zeaxanthin. Petit Verdot and Cabernet franc wine color and aroma were inconsistently distinguishable between leaf removal treatments, and color intensity was rated higher in wines made with fruit from pre-bloom leaf removal compared to modest post …
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Lutein and α-tocopherol biodistribution in animal models
… with high or low levels of carotenoids (lutein, zeaxanthin, β-carotene and lycopene) for 4 months (n=2/group). All samples were analyzed by HPLC-PDA. This pilot study supports our hypothesis that the carotenoid-supplemented infant formula substantially enhanced lutein accumulation in various …
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Eating quality and variability in carotenoid content and profiles in winter squash and sweet potato
… winter squash species using HPLC. Lutein and zeaxanthin were present in the Cucurbita maxima cultigens and violaxanthin and alpha-carotene were present among Cucurbita moschata cultigens.</p><p>Among eight sweet potato cultigens (Ipomoea batatas) in this study, five orange-fleshed cultigens …
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Approaches to understanding diversity in rubber and carotenoid synthesis in <i>Hevea brasiliensis </i>latex
… that four major carotenoids namely lutein, zeaxanthin, α-carotene and β-carotene were consistently present in both RRIM600 and PB235 latex. β-carotene was found to be the major carotenoid, at 1.2 μg/g in PB235 and 0.8 μg/g in RRIM600 fresh latex samples. However, the analytical method …
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Genetic dissection of carotenoid concentration and compositional traits in maize grain
… carotenoids in maize grain include lutein and zeaxanthin, which are collectively called di-hydroxy xanthophyll carotenoids, as well as alpha-carotene, beta-carotene and beta-cryptoxanthin, which are proVitamin A carotenoids. While phenotypic sampling and recombination across diverse maize …
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