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Premenopausal plasma carotenoids, fluorescent oxidation products, and subsequent breast cancer risk in the nurses' health studies.

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High levels of circulating carotenoids are hypothesized to reduce breast cancer risk, potentially due to their antioxidant properties. However, little is known about the relationship between carotenoid exposure earlier in life and risk. We examined associations of premenopausal plasma carotenoids

Circulating carotenoids, mammographic density, and subsequent risk of breast cancer.

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Mammographic density is one of the strongest predictors of breast cancer risk. Recently, it has been suggested that reactive oxygen species may influence breast cancer risk through its influence on mammographic density. In the current study, we addressed this hypothesis and also assessed if the

Plasma carotenoids, retinol, and tocopherols and risk of breast cancer.

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The roles of carotenoids, retinol, and tocopherols in breast cancer etiology have been inconclusive. The authors prospectively assessed the relations between plasma alpha-carotene, beta-carotene, beta-cryptoxanthin, lycopene, lutein/zeaxanthin, retinol, alpha-tocopherol, and gamma-tocopherol and

Dietary carotenoids and risk of breast cancer in Chinese women.

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There has been considerable interest in the role of carotenoids in the chemoprevention of cancer. However, the protective effect of carotenoids on breast cancer has been inconclusive. To investigate whether intake of lycopene, alpha-carotene, beta-carotene, beta-cryptoxanthin, and lutein/zeaxanthin

A study on serum carotenoid levels in breast cancer patients of Indian women in Chennai (Madras), India.

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Two-hundred and six breast cancer cases were histologically confirmed breast cancer diagnoses at the Cancer Institute in Chennai (Madras), India. One-hundred and fifty hospital controls were patients who had cancer at any site other than breast and gynecological organs, and 61 healthy controls were

Plasma carotenoid- and retinol-weighted multi-SNP scores and risk of breast cancer in the National Cancer Institute Breast and Prostate Cancer Cohort Consortium.

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BACKGROUND Dietary and circulating carotenoids have been inversely associated with breast cancer risk, but observed associations may be due to confounding. Single-nucleotide polymorphisms (SNPs) in β-carotene 15,15'-monooxygenase 1 (BCMO1), a gene encoding the enzyme involved in the first step of

No evidence of association between breast cancer risk and dietary carotenoids, retinols, vitamin C and tocopherols in Southwestern Hispanic and non-Hispanic White women.

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OBJECTIVE The effects of dietary intake of antioxidant vitamins on breast cancer risk are inconclusive. Moreover, little is known as to whether associations differ between non-Hispanic White (NHW) and Hispanic women. We assessed the associations of the dietary intake of antioxidant vitamins commonly

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

Dietary fiber and risk of breast cancer: a case-control study in Uruguay.

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To examine whether dietary fiber modifies breast cancer risk, a case-control study involving 351 newly diagnosed patients with breast cancer and 356 hospitalized controls was conducted in Uruguay. Dietary patterns were assessed in detail by use of a food frequency questionnaire on 64 items, which

Premenopausal breast cancer risk and intake of vegetables, fruits, and related nutrients.

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BACKGROUND Given the international variations in breast cancer incidence rates and the changes in breast cancer incidence among migrant populations, it has been hypothesized that diet is a factor influencing risk of this disease. Many studies indicate that a diet high in vegetables and fruits may

A prospective study of folate intake and the risk of breast cancer.

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BACKGROUND Folate is involved in DNA synthesis and methylation and may reduce breast cancer risk, particularly among women with greater alcohol consumption. OBJECTIVE To assess the association between folate intake and risk of breast cancer and whether higher folate intake may reduce excess risk

Dietary carotenoids and risk of breast cancer.

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BACKGROUND Many studies of fruit and vegetable consumption showed inverse associations with breast cancer risk, suggesting the potential importance of carotenoids (and other phytochemicals) contained in these foods. To date, however, only one prospective cohort study has examined dietary carotenoids

Correlation between carotenoid concentrations in serum and normal breast adipose tissue of women with benign breast tumor or breast cancer.

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To evaluate the relationship between carotenoid concentrations in serum and breast tissue, we measured serum carotenoid concentrations and endogenous carotenoid levels in breast adipose tissue of women with benign breast tumor (n = 46) or breast cancer (n = 44). Before extraction, serum was digested

Dietary carotenoids and the risk of invasive breast cancer.

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Certain classes of vitamins and nutrients found in fruits and vegetables have been of particular interest in relation to cancer prevention, owing to their potential anticarcinogenic properties. We examined the association between certain fruits, vegetables, carotenoids, and vitamin A and breast

Relationships of serum carotenoids, retinol, alpha-tocopherol, and selenium with breast cancer risk: results from a prospective study in Columbia, Missouri (United States)

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To evaluate relationships of serum carotenoids, alpha-tocopherol, selenium, and retinol with breast cancer prospectively, we conducted a case-control study nested in a cohort from the Breast Cancer Serum Bank in Columbia, Missouri (United States). Women free of cancer donated blood to this bank in

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