antioxidant/bröstcancer

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A prospective study of genetic polymorphism in MPO, antioxidant status, and breast cancer risk.

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Oxidative stress may be involved in breast carcinogenesis. Myeloperoxidase (MPO) is an endogenous oxidant enzyme that generates reactive oxygen species (ROS). A single nucleotide polymorphism (SNP) G-463A in the promoter region has been associated with a decrease in risk of breast cancer. We

Antioxidant Activity and ROS-Dependent Apoptotic Effect of Scurrula ferruginea (Jack) Danser Methanol Extract in Human Breast Cancer Cell MDA-MB-231.

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Scurrula ferruginea (Jack) Danser is one of the mistletoe species belonging to Loranthaceae family, which grows on the branches of many deciduous trees in tropical countries. This study evaluated the antioxidant activities of S. ferruginea extracts. The cytotoxic activity of the selected extracts,

Status of oxidative stress and antioxidant levels in smokers with breast cancer from western Nepal.

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BACKGROUND Research indicates that oxidative stress induced by smoking plays a role in breast cancer. In view of these reports, we aimed to study th relationship between smoking and oxidative stress in breast cancer patients from the western region of Nepal. METHODS The study included a control

Tissue antioxidants and postmenopausal breast cancer: the European Community Multicentre Study on Antioxidants, Myocardial Infarction, and Cancer of the Breast (EURAMIC).

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Antioxidants may protect against free radical mediated carcinogenesis. Epidemiological studies have not confirmed this hypothesis for breast cancer, possibly because of methodological limitations. Time-integrated exposure of alpha-tocopherol and beta-carotene in adipose tissue, and selenium in

Antioxidant supplement use after breast cancer diagnosis and mortality in the Life After Cancer Epidemiology (LACE) cohort.

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BACKGROUND There is concern that antioxidant supplement use during chemotherapy and radiation therapy may decrease treatment effects, yet the effects of such supplements on recurrence and survival are largely unknown. METHODS The authors prospectively examined the associations between antioxidant

Prospective associations between plasma saturated, monounsaturated and polyunsaturated fatty acids and overall and breast cancer risk - modulation by antioxidants: a nested case-control study.

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BACKGROUND Mechanistic data suggest that different types of fatty acids play a role in carcinogenesis and that antioxidants may modulate this relationship but epidemiologic evidence is lacking. Our aim was to investigate the association between plasma saturated, monounsaturated and polyunsaturated

EURAMIC Study: antioxidants, myocardial infarction and breast cancer. Design and main hypotheses.

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Epidemiological studies have not given sufficient evidence yet for the role of antioxidant nutrients in the prevention of cardiovascular disease. As regards cancer, an inverse association between beta-carotene intake and specific types of cancer, especially lung cancer, has been shown. For other

Antioxidant micronutrients and breast cancer.

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We reviewed epidemiologic evidence on the relationship between four antioxidant micronutrients (vitamin A, vitamin C, vitamin E, and selenium) and breast cancer risk. Available data support a modest protective effect of vitamin A, although more studies are needed to examine further this association

Breast cancer, serum antioxidant vitamins, and p53 protein overexpression.

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Although several studies have suggested that the relationship between the various risk factors and breast cancer may differ according to the breast cancer subtypes, it is not clear whether the p53 protein expression status of breast cancer represents an etiologically distinct form of the disease

Antioxidant supplementation and breast cancer prognosis in postmenopausal women undergoing chemotherapy and radiation therapy.

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There is a paucity of information on the prevalence of dietary supplement use in breast cancer survivors. Only a few studies have examined the impact of dietary supplements, particularly antioxidants, on breast cancer prognosis and the results are

Coenzyme Q10 concentrations and antioxidant status in tissues of breast cancer patients.

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OBJECTIVE An increasing amount of experimental and epidemiological evidence implicates the involvement of oxygen derived radicals in the pathogenesis of cancer development. Oxygen derived radicals are able to cause damage to membranes, mitochondria, and macromolecules including proteins, lipids and

Therapeutic effect of paclitaxel and propolis on lipid peroxidation and antioxidant system in 7,12 dimethyl benz(a)anthracene-induced breast cancer in female Sprague Dawley rats.

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Breast cancer is one of the most common cancers in women of developed and developing countries. The optimum management of which requires a multidisciplinary approach including the use of certain biochemical and molecular markers. The effect of propolis along with paclitaxel on 7,12 dimethyl

Sodium Selenite Alleviates Breast Cancer-Related Lymphedema Independent of Antioxidant Defense System.

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Long-term surveillance is necessary to identify patients at risk of developing secondary lymphedema after breast cancer surgery. We assessed how sodium selenite supplementation would affect breast cancer-related lymphedema (BCRL) symptoms and parameters in association with antioxidant effects. A

Effect of tamoxifen and fulvestrant long-term treatments on ROS production and (pro/anti)-oxidant enzymes mRNA levels in a MCF-7-derived breast cancer cell line.

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BACKGROUND Reactive oxygen species (ROS) are key players in the apoptotic effects induced by short-term tamoxifen treatment of breast cancer cells, but also in acquired resistance following long-term treatment. Whereas the use of the selective estrogen receptor down-regulator fulvestrant is

Intestinal tumour chemoprevention with the antioxidant lipoic acid stimulates the growth of breast cancer.

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OBJECTIVE Breast and intestinal cancers chemoprevention would significantly impact on cancer care. Hence, we assessed the chemopreventive efficacy of the antioxidant lipoic acid (LA) in mice overexpressing a wild-type Her2/neu, as an animal model of breast cancer, and in APCmin mice for intestinal

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