Relationships of Serum Carotenoids, Retinol, α-Tocopherol, and Selenium with Breast Cancer Risk: Results from a Prospective Study in Columbia, Missouri (United States)

• Published in: Cancer causes & control 1998-01, Vol.9 (1), p.89-97
• Main Authors: Dorgan, Joanne F., Sowell, Anne, Swanson, Christine A., Potischman, Nancy, Miller, Rosetta, Schussler, Nicki, Stephenson, Hugh E.
• Format: Article
• Language: English
• Subjects: Adult; Aged; Blood; Blood specimen collection; Breast cancer; Breast Neoplasms - epidemiology; Breast Neoplasms - etiology; Cancer; Carotenoids; Carotenoids - blood; Case control studies; Cigarette smoking; Cohort Studies; Diet; Disease Susceptibility; Female; Humans; Micronutrients; Middle Aged; Missouri - epidemiology; Nutritional Status; Prospective Studies; Research Papers; Risk Factors; Selenium; Selenium - blood; Vitamin A - blood; Vitamin E - blood
• ISSN: 0957-5243; 1573-7225
• DOI: 10.1023/A:1008857521992

To evaluate relationships of serum carotenoids, α-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 1977-87. During up to 9.5 years of follow-up (median = 2.7 years), 105 cases of histologically confirmed breast cancer were diagnosed. For each case, two women alive and free of cancer at the age of the case's diagnosis and matched on age and date of blood collection were selected as controls. A nonsignificant gradient of decreasing risk of breast cancer with increasing serum β-cryptoxanthin was apparent for all women. Serum lycopene also was associated inversely with risk, and among women who donated blood at least two years before diagnosis, a significant gradient of decreasing breast cancer risk with increasing lycopene concentration was evident. A marginally significant gradient of decreasing risk with increasing serum lutein/zeaxanthin also was apparent among these women. We did not observe any evidence for protective effects of α- and β-carotene, α-tocopherol, retinol, or selenium for breast cancer. Results of this study suggest that the carotenoids β-cryptoxanthin, lycopene, and lutein/zeaxanthin may protect against breast cancer.