beta carotene/brustkrebs

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Dietary fiber, beta-carotene and breast cancer: results from a case-control study.

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To study the association between dietary fiber, beta-carotene and breast cancer, the average daily intake of these dietary components was compared among 133 incident breast cancer cases and 238 population controls. Average daily intake of cereal products, fruit and vegetables was also studied. A

The relationship of dietary intake and serum levels of retinol and beta-carotene with breast cancer. Results of a case-control study.

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The possible association between the risk of breast cancer, blood level, and dietary intake of preformed Vitamin A (retinol) and beta-carotene was investigated in a case-control study carried out from May 1982 to June 1985. The patients studied were 214 previously untreated individuals with T1-2,

Plasma retinol, beta-carotene and vitamin E levels in relation to the future risk of breast cancer.

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In a prospective study of 5,004 women in Guernsey, plasma samples were collected and stored. Retinol, beta-carotene and vitamin E levels were later measured in the samples from 39 women who subsequently developed breast cancer and from 78 controls who did not develop cancer. Plasma retinol levels

Serum vitamins A and E, beta-carotene, and selenium in patients with breast cancer.

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A total of 89 subjects including 30 breast cancer patients with distal metastases, 29 patients with benign breast disease, and 30 healthy subjects were studied. Serum samples from these subjects were obtained from the National Cancer Institute (NCI) Breast Cancer Serum Bank, Bethesda. Serum

[Effect of beta-carotene on gene expression of breast cancer cells].

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OBJECTIVE This study was conducted to investigate the altered gene expression of MCF-7 cell before and after the treatment with beta-carotene using cDNA microarray and to investigate the mechanism which beta-carotene induce breast cancer cell apoptosis. METHODS Two fluorescence cDNA probes were made

Beta-carotene intake and risk of postmenopausal breast cancer.

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We assessed the relation between beta-carotene consumption at various times in life and breast cancer risk by conducting a case-control study nested within a population-based cohort of women screened for breast cancer in Sweden. We conducted a telephone interview with 273 incident breast cancer

Beta-carotene-bound albumin nanoparticles modified with chlorin e6 for breast tumor ablation based on photodynamic therapy.

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Chlorin e6 (Ce6) has attracted considerable interest as a promising second-generation photosensitizer for photodynamic therapy (PDT). However, the in vivo availability of Ce6 is significantly restricted by its low water solubility and poor ability to target tumors. We sought to overcome the

Excentric cleavage products of beta-carotene inhibit estrogen receptor positive and negative breast tumor cell growth in vitro and inhibit activator protein-1-mediated transcriptional activation.

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Both retinoids and carotenoids are potentially useful chemopreventive agents. In this study we tested the effect of synthetic excentric cleavage products of beta-carotene on the growth of the MCF-7, Hs578T and MDA-MB-231 human breast cancer cells. The apo-beta-carotenoic acids (beta-apo-CA)

Vitamins C and E, retinol, beta-carotene and dietary fibre in relation to breast cancer risk: a prospective cohort study.

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Association between breast cancer risk and the intake of vitamins C and E, retinol, beta (beta)-carotene, dietary fibre, vegetables, fruit and potatoes was examined in The Netherlands Cohort Study, for 62,573 women aged 55-69 years. After 4.3 years of follow-up, 650 incident breast cancer cases were

Lycopene and beta-carotene induce cell-cycle arrest and apoptosis in human breast cancer cell lines.

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Lycopene and beta-carotene are carotenoids widely distributed in fruits and vegetables, with potential anticancer activity. Epidemiological trials rarely provide evidence for the mechanisms of action of these compounds, and their biological effects at different times of treatment are still unclear.

Dietary beta-carotene, vitamin C and E intake and breast cancer risk in the European Prospective Investigation into Cancer and Nutrition (EPIC).

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So far, studies on dietary antioxidant intake, including beta-carotene, vitamin C and vitamin E, and breast cancer risk are inconclusive. Thus, we addressed this question in the European Prospective Investigation into Cancer and Nutrition. During a median follow-up time of 8.8 years, 7,502 primary

Methotrexate and beta-carotene loaded-lipid polymer hybrid nanoparticles: a preclinical study for breast cancer.

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OBJECTIVE This work was intended to investigate the targeting potential of fructose-tethered lipid-polymeric hybrid nanoparticles (F-BC-MTX-LPHNPs) co-loaded with beta carotene (BC) and methotrexate (MTX) in breast cancer therapeutics and find out the possible protective role of BC on MTX-induced

Beta carotene-loaded zein nanoparticles to improve the biopharmaceutical attributes and to abolish the toxicity of methotrexate: a preclinical study for breast cancer.

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Beta carotene (βC) loaded nanoparticles of zein (βC-NPs) were developed using modified phase separation technique. βC-NPs were prepared using different zein concentration and optimized formulation was selected on the basis of micromeritics properties and entrapment efficiency. Further, βC-NPs were

β-carotene at physiologically attainable concentration induces apoptosis and down-regulates cell survival and antioxidant markers in human breast cancer (MCF-7) cells.

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Although β-carotene is known for its anti-carcinogenic and antioxidant properties, a few recent epidemiological and experimental evidence show that at higher concentration it acts as pro-oxidant and induces cancer. Since the global burden of breast cancer exceeds all other types of cancer, and its

Reduction of Serum Concentrations and Synergy between Retinol, β-Carotene, and Zinc According to Cancer Staging and Different Treatment Modalities Prior to Radiation Therapy in Women with Breast Cancer.

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The procedures used for breast cancer treatment are able to increase the level of oxidative stress and cause depletion of antioxidants.To investigate the relationship between serum concentrations of retinol, β-carotene, and zinc, according to breast cancer

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