xanthophyll/neoplasms

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Putative supramolecular complexes formed by carotenoids and xanthophylls with ascorbic acid to reverse multidrug resistance in cancer cells.

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BACKGROUND The molecular basis of interaction of selected carotenoids and xanthophylls with ascorbic acid on cancer cells was studied to determine their anticancer effects. METHODS Drug accumulation was measured in a human ABCB1 gene-transfected mouse lymphoma cell line and in a human lung cancer

Liarozole amplifies retinoid-induced apoptosis in human prostate cancer cells.

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Beta-carotene, canthaxanthin and retinoic acid (RA) inhibited growth of human DU145 prostate cancer cells by 45, 56 and 18%, respectively. Lycopene was also found to inhibit cell growth. Other carotenoids including xanthophyll (lutein), cryptoxanthin and zeaxanthin were less effective. Liarozole (a

Pre- and co-treatment with xanthophyll enhances the anti-leukemic activity of adriamycin.

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Xanthophyll (lutein) is one of the most potent known antioxidants. It has been shown that dietary intake of xanthophyll helps to prevent age-related macular degeneration and the development of cataracts. It may also reduce the risk of developing various types of cancer. Here we showed that

Relationship between serum xanthophyll levels and the consumption of cigarettes, alcohol or foods in healthy inhabitants of Japan.

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The relationship between serum concentrations of beta-cryptoxanthin and zeaxanthin and the consumption of cigarettes and alcohol or the intake frequencies of foods was investigated in 775 Japanese inhabitants. Serum concentrations of beta-cryptoxanthin and beta-carotene in healthy Japanese aged

Carotenoid analysis of several dark-green leafy vegetables associated with a lower risk of cancers.

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We have examined the carotenoid contents of several dark green vegetables found to be associated with a lower risk of various epithelial cancers in our epidemiological study and animal study. Samples of these vegetables were quantitatively examined by high-performance liquid chromatography (HPLC) on

Xanthophyll epoxides, unlike beta-carotene monoepoxides, are not detectibly absorbed by humans.

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Increased intake of fruits and vegetables is associated with reduced risk of cancer and other chronic diseases. Epoxycarotenoids are widely distributed in nature and constitute major dietary carotenoids in a number of fruits and vegetables. Previous studies have shown that beta-carotene 5,6-epoxide

Induction of Anoikis in Human Colorectal Cancer Cells by Fucoxanthinol.

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Fucoxanthin (Fx), one of the major xanthophylls in brown algae, is known to be effective for colorectal cancer (CRC) chemoprevention through inhibiting cell growth, cell cycle and caspase activation. Recently, we observed fucoxanthinol (FuOH), an anti-cancer active metabolite of Fx, treatment of

Fucoxanthin, a Marine Xanthophyll Isolated From Conticribra weissflogii ND-8: Preventive Anti-Inflammatory Effect in a Mouse Model of Sepsis.

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Background: Fucoxanthin (FX), a xanthophyll pigment which occurs in marine brown algae with remarkable biological properties, has been proven to be safe for consumption by animals. Although FX has various pharmacological effects including anti-inflammatory, anti-tumor, anti-obesity,

Effects of Dietary Xanthophylls, Canthaxanthin and Astaxanthin on N-Methyl-N-nitrosourea-induced Rat Mammary Carcinogenesis.

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BACKGROUND Natural xanthophylls, canthaxanthin and astaxanthin are known to exhibit anticancer activity. However, the dietary effects of canthaxanthin and astaxanthin on N-methyl-N-nitrosourea (MNU)-induced mammary cancer remain controversial, and their mechanisms of action have not been clearly

Antimutagenicity of xanthophylls present in Aztec Marigold (Tagetes erecta) against 1-nitropyrene.

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The principal natural food colorants used in modern food manufacture are anthocyanins, betalains, carotenoids, chlorophylls, riboflavin and caramel. Carotenoids (carotenes and xanthophylls) occur naturally in some foods such as carrots, red tomatoes, butter, cheese, paprika, palm oil, corn kernels,

Carrot leaves improve color and xanthophyll content of egg yolk in laying hens but are not as effective as commercially available marigold fortificant1.

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Yellow and orange egg yolks are good sources of xanthophyll carotenoids, consumption of which is associated with health benefits, such as cancer prevention, eye health, and bone health. Industrial feed fortificants used to improve egg yolk color and carotenoid concentration typically are derived

Carotenoid analyses of selected raw and cooked foods associated with a lower risk for cancer.

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We examined the carotenoid content of selected foods consistently found to be associated with a lower risk for various epithelial cancers in epidemiologic studies. Both raw and cooked samples of green, leafy vegetables and yellow or orange vegetables were quantitatively examined by high-performance

Multiple Mechanisms of Anti-Cancer Effects Exerted by Astaxanthin.

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Astaxanthin (ATX) is a xanthophyll carotenoid which has been approved by the United States Food and Drug Administration (USFDA) as food colorant in animal and fish feed. It is widely found in algae and aquatic animals and has powerful anti-oxidative activity. Previous studies have revealed that ATX,

Carotenoids in Cancer Apoptosis-The Road from Bench to Bedside and Back

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An incidence and mortality of cancer are rapidly growing worldwide, especially due to heterogeneous character of the disease that is associated with irreversible impairment of cellular homeostasis and function. Targeting apoptosis, one of cancer hallmarks, represents a potent cancer treatment

Microbial xanthophylls.

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Xanthophylls are oxygenated carotenoids abundant in the human food supply. Lutein, zeaxanthin, and cryptoxanthin are major xanthophyll carotenoids in human plasma. The consumption of these xanthophylls is directly associated with reduction in the risk of cancers, cardiovascular disease, age-related

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