نتایج جستجو برای: lutein

تعداد نتایج: 2961  

2013
El-Sayed M. Abdel-Aal Humayoun Akhtar Khalid Zaheer Rashida Ali

The eye is a major sensory organ that requires special care for a healthy and productive lifestyle. Numerous studies have identified lutein and zeaxanthin to be essential components for eye health. Lutein and zeaxanthin are carotenoid pigments that impart yellow or orange color to various common foods such as cantaloupe, pasta, corn, carrots, orange/yellow peppers, fish, salmon and eggs. Their ...

2012
Irini F. Strati Vassilia J. Sinanoglou Lintita Kora Sofia Miniadis-Meimaroglou Vassiliki Oreopoulou

Carotenoids are important antioxidant compounds, present in many foods of plant, animal and marine origin. The aim of the present study was to describe the carotenoid composition of tomato waste, prawn muscle and cephalothorax and avian (duck and goose) egg yolks through the use of a modified gradient elution HPLC method with a C30 reversed-phase column for the efficient separation and analysis...

Journal: :Carcinogenesis 1998
J M Kim S Araki D J Kim C B Park N Takasuka H Baba-Toriyama T Ota Z Nir F Khachik N Shimidzu Y Tanaka T Osawa T Uraji M Murakoshi H Nishino H Tsuda

The present study was carried out to examine the chemopreventive effects of carotenoids such as fucoxanthin, lycopene and lutein as well as curcumin and its derivative, tetrahydrocurcumin (THC), on development of putative preneoplastic aberrant crypt foci (ACF) in colons of mice initiated with 1,2-dimethylhydrazine dihydrochloride (DMH). Influence on proliferation of colonic crypt epithelial ce...

Journal: :Plant physiology 2009
Matthew P Johnson María L Pérez-Bueno Ahmad Zia Peter Horton Alexander V Ruban

The light-harvesting antenna of higher plant photosystem II (LHCII) has the intrinsic capacity to dissipate excess light energy as heat in a process termed nonphotochemical quenching (NPQ). Recent studies suggest that zeaxanthin and lutein both contribute to the rapidly relaxing component of NPQ, qE, possibly acting in the minor monomeric antenna complexes and the major trimeric LHCII, respecti...

2016
Jéssica T. P. Silva Júlia M. T. Geiss Rafael P. Ineu Fernanda V. Leimann Gustavo P. Guerra Odinei H. Gonçalves

Lutein is a xanthophyll carotenoid associated with cognitive improvement (Johnson, 2012). Nevertheless, this compound is very sensitive to external agents. Encapsulation procedures are able to slow down degradation processes and enhance bioavailability. This paper aims the preparation and characterization of lutein-loaded poly(vinyl pirrolidone) nanoparticles and its effect on mice’s declarativ...

Journal: :Journal of Nutritional Science and Vitaminology 2021

Docosahexaenoic acid (DHA) and lutein are important nutrients for brain health. Whether there were synergistic effects of DHA on the protection against neuronal cell damage induced by oxidative stress remained unclear. The present study was designed to investigate hydrogen peroxide (H2O2)-induced challenge in PC12 cells. cells divided into different groups received H2O2 (80 μM), (20 μM)+H2O2 (2...

Journal: :The British journal of nutrition 2016
Bo Yan Min-Shan Lu Lian Wang Xiong-Fei Mo Wei-Ping Luo Yu-Feng Du Cai-Xia Zhang

Previous epidemiological studies have revealed the anti-cancer effect of dietary circulating carotenoids. However, the protective role of specific individual circulating carotenoids has not been elucidated. The purpose of this study was to examine whether serum carotenoids, including α-carotene, β-carotene, β-cryptoxanthin, lycopene and lutein/zeaxanthin, could lower the risk for breast cancer ...

Journal: :Investigative ophthalmology & visual science 2004
John Nolan Orla O'Donovan Heather Kavanagh Jim Stack Michael Harrison Annalouise Muldoon John Mellerio Stephen Beatty

PURPOSE To investigate the relationship between percentage of body fat and macular pigment (MP) optical density. METHODS One hundred healthy subjects of ages between 22 and 60 years volunteered to participate in this study. MP optical density was measured psychophysically, serum lutein and zeaxanthin were quantified by HPLC, and dietary intake of lutein and zeaxanthin was assessed using a val...

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