Results 21 to 30 of about 16,603 (312)

Xanthophylls: potential benefits in protecting against UV burns [PDF]

open access: yesBrazilian Journal of Biology
Exposure to ultraviolet (UV) radiation is a significant risk factor for sunburn (solar erythema) and skin cancer. Current treatments focus primarily on symptom relief, making the need for new therapeutic approaches urgent.
D. Q. Tavares   +5 more
doaj   +1 more source

Effect of grass–clover forage and whole-wheat feeding on the sensory quality of eggs [PDF]

open access: yes, 2010
BACKGROUND: A sensory panel evaluated the sensory profile of eggs from hens from three experimental systems: (1) an indoor system × normal layer diet (InL), (2) a grass–clover forage system × normal layer diet (GrL), and (3) a grass–clover forage system
Allesen-Holm, B.H.   +2 more
core   +1 more source

Reviewing the effects of food provisioning on wildlife immunity [PDF]

open access: yes, 2018
While urban expansion increasingly encroaches on natural habitats, many wildlife species capitalize on anthropogenic food resources, which have the potential to both positively and negatively influence their responses to infection.
Babayan, Simon A.   +2 more
core   +1 more source

Plasma Carotenoids and Biomarkers of Oxidative Stress in Patients with prior Head and Neck Cancer

open access: yesBiomarker Insights, 2009
Diets high in fruits and vegetables are generally believed protective against several chronic diseases. One suggested mechanism is a reduction in oxidative stress.
Kathryn J. Hughes   +5 more
doaj   +2 more sources

A 3-hydroxy %-end group in xanthophylls is preferentially oxidized to a 3-oxo ε-end group in mammals[S]

open access: yesJournal of Lipid Research, 2015
We previously found that mice fed lutein accumulated its oxidative metabolites (3′-hydroxy-ε,ε-caroten-3-one and ε,ε-carotene-3,3′-dione) as major carotenoids, suggesting that mammals can convert xanthophylls to keto-carotenoids by the oxidation of ...
Akihiko Nagao   +5 more
doaj   +1 more source

Effect of paprika xanthophyll supplementation on oxygen uptake in athletes: a randomized, double-blind, placebo-controlled study

open access: yesJournal of Physical Fitness and Sports Medicine, 2018
Xanthophylls have been attracting attention as phytochemicals with antioxidant activity and various beneficial effects demonstrated by randomized clinical trials.
Takashi Ichihara   +7 more
doaj   +1 more source

Conservation of core complex subunits shaped the structure and function of photosystem I in the secondary endosymbiont alga Nannochloropsis gaditana [PDF]

open access: yes, 2017
Photosystem I (PSI) is a pigment protein complex catalyzing the light-driven electron transport from plastocyanin to ferredoxin in oxygenic photosynthetic organisms.
Alboresi   +87 more
core   +3 more sources

In Vitro Inhibition of Human UDP-Glucuronosyl-Transferase (UGT) Isoforms by Astaxanthin, β-Cryptoxanthin, Canthaxanthin, Lutein, and Zeaxanthin: Prediction of in Vivo Dietary Supplement-Drug Interactions

open access: yesMolecules, 2016
Despite the widespread use of the five major xanthophylls astaxanthin, β-cryptoxanthin, canthaxanthin, lutein, and zeaxanthin as dietary supplements, there have been no studies regarding their inhibitory effects on hepatic UDP-glucuronosyltransferases ...
Yu Fen Zheng   +7 more
doaj   +1 more source

Xanthophylls in light-harvesting complex II of higher plants: light harvesting and triplet quenching [PDF]

open access: yes, 1997
A spectral and functional assignment of the xanthophylls in monomeric and trimeric light-harvesting complex II of green plants has been obtained using HPLC analysis of the pigment composition, laser-flash induced triplet- minus-singlet, fluorescence ...
Amerongen, H. van   +5 more
core   +3 more sources

Carotenoid β-Ring Hydroxylase and Ketolase from Marine Bacteria—Promiscuous Enzymes for Synthesizing Functional Xanthophylls

open access: yesMarine Drugs, 2011
Marine bacteria belonging to genera Paracoccus and Brevundimonas of the α-Proteobacteria class can produce C40-type dicyclic carotenoids containing two β-end groups (β rings) that are modified with keto and hydroxyl groups.
Norihiko Misawa
doaj   +1 more source

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