Results 21 to 30 of about 16,041 (278)

Macular Xanthophylls Are Related to Intellectual Ability among Adults with Overweight and Obesity

Nutrients, 2018
Excess adiposity or obesity has been inversely related to cognitive function and macular xanthophyll status. However, whether the neuroprotective effects of macular xanthophylls on cognitive function are independent of excess adiposity is unclear.
N. Khan, A. Walk, C. Edwards, Alicia Jones, Corinne N Cannavale, Sharon V. Thompson, Ginger E. Reeser, H. Holscher   +7 more
semanticscholar   +2 more sources

A quadruple mutant of Arabidopsis reveals a β-carotene hydroxylation activity for LUT1/CYP97C1 and a regulatory role of xanthophylls on determination of the PSI/PSII ratio

BMC Plant Biology, 2012
Background Xanthophylls are oxygenated carotenoids playing an essential role as structural components of the photosynthetic apparatus. Xanthophylls contribute to the assembly and stability of light-harvesting complex, to light absorbance and to ...
Fiore Alessia, Dall'Osto Luca, Cazzaniga Stefano, Diretto Gianfranco, Giuliano Giovanni, Bassi Roberto   +5 more
doaj   +2 more sources

Genomic insights and biotechnological potential of a saline soil fungus Aspergillus tubingensis FF14 for xanthophyll biosynthesis [PDF]

Microbiology Spectrum
Microbial pigment production is often a physiological response to environmental stress, including salinity, oxidative stress, and nutrient limitation.
Weronika Śliżewska, Katarzyna Struszczyk-Świta, Joanna Oracz, Flavia Pinzari, Maurycy Daroch, Agata Czyżowska, Olga Marchut-Mikołajczyk   +6 more
doaj   +2 more sources

Stimulatory effect of auxins and cytokinins on carotenes, with differential effects on xanthophylls in the green alga Chlorella pyrenoidosa Chick.

Acta Societatis Botanicorum Poloniae, 2014
Research concerning the influence of auxins and cytokinins on the content of carotenoids in Chlorella pyrenoidosa (Chlorophyceae) has been conducted. The strongest stimulating effect on carotenoids content in Ch.
Romuald Czerpak, Andrzej Bajguz
doaj   +2 more sources

Excited States of Xanthophylls Revisited: Towards the Simulation of Biologically Relevant Systems [PDF]

, 2021
Xanthophylls are an important class of oxygen containing carotenoids, which play a fundamental role both in light harvesting pigment-protein complexes and in many other photo-responsive proteins.
Jacquemin, Denis, Denis, Jacquemin, Mennucci, Benedetta, Benedetta, Mennucci, Bondanza, Mattia, Mattia, Bondanza   +5 more
core   +2 more sources

Macular and Plasma Xanthophylls Are Higher in Age-related Macular Degeneration than in Normal Aging

Ophthalmology Science, 2022
Purpose Quantification of retinal xanthophyll carotenoids in eyes with and without age-related macular degeneration (AMD) via macular pigment optical volume (MPOV), a metric for xanthophyll abundance from dual wavelength autofluorescence, plus ...
G. McGwin, Deepayan Kar, Andreas Berlin, Mark E. Clark, Thomas A. Swain, J. Crosson, K. Sloan, C. Owsley, C. Curcio   +8 more
semanticscholar   +1 more source

Low Xanthophylls, Retinol, Lycopene, and Tocopherols in Grey and White Matter of Brains with Alzheimer’s Disease

Journal of Alzheimer's Disease, 2022
Background: Oxidative stress contributes to pathogenesis and progression of Alzheimer’s disease (AD). Higher levels of the dietary antioxidants— carotenoids and tocopherols— are associated with better cognitive functions and lower risk for AD, and lower ...
C. Dorey, D. Gierhart, K. Fitch, Ian Crandell, N. Craft   +4 more
semanticscholar   +1 more source

Excited States of Xanthophylls Revisited: Toward the Simulation of Biologically Relevant Systems

Journal of Physical Chemistry Letters, 2021
Xanthophylls are a class of oxygen-containing carotenoids, which play a fundamental role in light-harvesting pigment–protein complexes and in many photoresponsive proteins. The complexity of the manifold of the electronic states and the large sensitivity
Mattia Bondanza, D. Jacquemin, B. Mennucci   +2 more
semanticscholar   +1 more source

IMPACT OF USING CASSAVA ROOT MEAL AND DIFFERENT COLORING AGENTS ON LAYING HEN PERFORMANCE AND EGG YOLK COLOR [PDF]

Egyptian Poultry Science, 2018
In this study, 180 Lohman laying hens 50 weeks of age were randomly distributed into 5 groups each has 36 hens in 4 replicates to evaluate the impact of using cassava root meal (CRM) and different coloring agents on laying hen performance, egg quality ...
mamdouh omar
doaj   +1 more source

More Than Pigments: The Potential of Astaxanthin and Bacterioruberin-Based Nanomedicines

Pharmaceutics, 2023
Carotenoids are natural products regulated by the food sector, currently used as feed dyes and as antioxidants in dietary supplements and composing functional foods for human consumption.
Maria Jose Morilla, Kajal Ghosal, Eder Lilia Romero   +2 more
doaj   +1 more source