Tags

Type your tag names separated by a space and hit enter

Dietary carotenoids and vitamins A, C, and E and risk of breast cancer.

Abstract

BACKGROUND

Data on intake of specific carotenoids and breast cancer risk are limited. Furthermore, studies of vitamins A, C, and E in relation to breast cancer risk are inconclusive. We have conducted a large, prospective study to evaluate long-term intakes of these nutrients and breast cancer risk.

METHODS

We examined, by use of multivariate analysis, associations between intakes of specific carotenoids, vitamins A, C, and E , consumption of fruits and vegetables, and breast cancer risk in a cohort of 83234 women (aged 33-60 years in 1980) who were participating in the Nurses' Health Study. Through 1994, we identified 2697 incident cases of invasive breast cancer (784 premenopausal and 1913 postmenopausal).

RESULTS

Intakes of beta-carotene from food and supplements, lutein/zeaxanthin, and vitamin A from foods were weakly inversely associated with breast cancer risk in premenopausal women. Strong inverse associations were found for increasing quintiles of alpha-carotene, beta-carotene, lutein/zeaxanthin, total vitamin C from foods, and total vitamin A among premenopausal women with a positive family history of breast cancer. An inverse association was also found for increasing quintiles of beta-carotene among premenopausal women who consumed 15 g or more of alcohol per day. Premenopausal women who consumed five or more servings per day of fruits and vegetables had modestly lower risk of breast cancer than those who had less than two servings per day (relative risk [RR] = 0.77; 95% confidence interval [CI] = 0.58-1.02); this association was stronger among premenopausal women who had a positive family history of breast cancer (RR = 0.29; 95% CI = 0.13-0.62) or those who consumed 15 g or more of alcohol per day (RR = 0.53; 95% CI = 0.27-1.04).

CONCLUSIONS

Consumption of fruits and vegetables high in specific carotenoids and vitamins may reduce premenopausal breast cancer risk.

Links

  • Aggregator Full Text
  • Authors+Show Affiliations

    ,

    Department of Nutrition, Harvard School of Public Health, Boston, MA 02115, USA. Shumin.Zhang@channing.harvard.edu

    , , , , , , ,

    Source

    Journal of the National Cancer Institute 91:6 1999 Mar 17 pg 547-56

    MeSH

    Adult
    Ascorbic Acid
    Breast Neoplasms
    Carotenoids
    Diet
    Feeding Behavior
    Female
    Humans
    Middle Aged
    Multivariate Analysis
    Premenopause
    Prospective Studies
    Risk
    Surveys and Questionnaires
    Vitamin A
    Vitamin E
    beta Carotene

    Pub Type(s)

    Journal Article
    Research Support, U.S. Gov't, P.H.S.

    Language

    eng

    PubMed ID

    10088626

    Citation

    Zhang, S, et al. "Dietary Carotenoids and Vitamins A, C, and E and Risk of Breast Cancer." Journal of the National Cancer Institute, vol. 91, no. 6, 1999, pp. 547-56.
    Zhang S, Hunter DJ, Forman MR, et al. Dietary carotenoids and vitamins A, C, and E and risk of breast cancer. J Natl Cancer Inst. 1999;91(6):547-56.
    Zhang, S., Hunter, D. J., Forman, M. R., Rosner, B. A., Speizer, F. E., Colditz, G. A., ... Willett, W. C. (1999). Dietary carotenoids and vitamins A, C, and E and risk of breast cancer. Journal of the National Cancer Institute, 91(6), pp. 547-56.
    Zhang S, et al. Dietary Carotenoids and Vitamins A, C, and E and Risk of Breast Cancer. J Natl Cancer Inst. 1999 Mar 17;91(6):547-56. PubMed PMID: 10088626.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Dietary carotenoids and vitamins A, C, and E and risk of breast cancer. AU - Zhang,S, AU - Hunter,D J, AU - Forman,M R, AU - Rosner,B A, AU - Speizer,F E, AU - Colditz,G A, AU - Manson,J E, AU - Hankinson,S E, AU - Willett,W C, PY - 1999/3/24/pubmed PY - 1999/3/24/medline PY - 1999/3/24/entrez SP - 547 EP - 56 JF - Journal of the National Cancer Institute JO - J. Natl. Cancer Inst. VL - 91 IS - 6 N2 - BACKGROUND: Data on intake of specific carotenoids and breast cancer risk are limited. Furthermore, studies of vitamins A, C, and E in relation to breast cancer risk are inconclusive. We have conducted a large, prospective study to evaluate long-term intakes of these nutrients and breast cancer risk. METHODS: We examined, by use of multivariate analysis, associations between intakes of specific carotenoids, vitamins A, C, and E , consumption of fruits and vegetables, and breast cancer risk in a cohort of 83234 women (aged 33-60 years in 1980) who were participating in the Nurses' Health Study. Through 1994, we identified 2697 incident cases of invasive breast cancer (784 premenopausal and 1913 postmenopausal). RESULTS: Intakes of beta-carotene from food and supplements, lutein/zeaxanthin, and vitamin A from foods were weakly inversely associated with breast cancer risk in premenopausal women. Strong inverse associations were found for increasing quintiles of alpha-carotene, beta-carotene, lutein/zeaxanthin, total vitamin C from foods, and total vitamin A among premenopausal women with a positive family history of breast cancer. An inverse association was also found for increasing quintiles of beta-carotene among premenopausal women who consumed 15 g or more of alcohol per day. Premenopausal women who consumed five or more servings per day of fruits and vegetables had modestly lower risk of breast cancer than those who had less than two servings per day (relative risk [RR] = 0.77; 95% confidence interval [CI] = 0.58-1.02); this association was stronger among premenopausal women who had a positive family history of breast cancer (RR = 0.29; 95% CI = 0.13-0.62) or those who consumed 15 g or more of alcohol per day (RR = 0.53; 95% CI = 0.27-1.04). CONCLUSIONS: Consumption of fruits and vegetables high in specific carotenoids and vitamins may reduce premenopausal breast cancer risk. SN - 0027-8874 UR - https://www.unboundmedicine.com/medline/citation/10088626/Dietary_carotenoids_and_vitamins_A_C_and_E_and_risk_of_breast_cancer_ L2 - http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=10088626.ui DB - PRIME DP - Unbound Medicine ER -