© 2003 by Oxford University Press
Journal of the National Cancer Institute, Vol. 95, No. 13, 1004-1007,
July 2, 2003
© 2003 Oxford University Press
BRIEF COMMUNICATION |
Zinc Supplement Use and Risk of Prostate Cancer
Affiliations of authors: M. F. Leitzmann, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD; M. J. Stampfer, W. C. Willett, E. L. Giovannucci, Departments of Epidemiology and Nutrition, Harvard School of Public Health, and Channing Laboratory, Department of Medicine, Harvard Medical School and Brigham and Womens Hospital, Boston, MA; K. Wu, Department of Nutrition, Harvard School of Public Health; G. A. Colditz, Department of Epidemiology, Harvard School of Public Health, and Channing Laboratory, Department of Medicine, Harvard Medical School and Brigham and Womens Hospital.
Corresponding author: Michael F. Leitzmann, M.D., Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, 6120 Executive Blvd., EPS-MSC 7232, Bethesda, MD 20892 (e-mail: leitzmann{at}mail.nih.gov).
ABSTRACT
The high concentration of zinc in the prostate suggests that zinc may play a role in prostate health. We examined the association between supplemental zinc intake and prostate cancer risk among 46 974 U.S. men participating in the Health Professionals Follow-Up Study. During 14 years of follow-up from 1986 through 2000, 2901 new cases of prostate cancer were ascertained, of which 434 cases were diagnosed as advanced cancer. Supplemental zinc intake at doses of up to 100 mg/day was not associated with prostate cancer risk. However, compared with nonusers, men who consumed more than 100 mg/day of supplemental zinc had a relative risk of advanced prostate cancer of 2.29 (95% confidence interval = 1.06 to 4.95; Ptrend = .003), and men who took supplemental zinc for 10 or more years had a relative risk of 2.37 (95% confidence interval = 1.42 to 3.95; Ptrend<.001). Although we cannot rule out residual confounding by supplemental calcium intake or some unmeasured correlate of zinc supplement use, our findings, that chronic zinc oversupply may play a role in prostate carcinogenesis, warrant further investigation.
Correspondence about this Article
- Re: Zinc Supplement Use and Risk of Prostate Cancer
- Cheryl A. Krone and Louis C. Harms
J Natl Cancer Inst 2003 95: 1556.[Extract] [Full Text] [PDF]
- RESPONSE: Re: Zinc Supplement Use and Risk of Prostate Cancer
- Michael F. Leitzmann and Edward L. Giovannucci
J Natl Cancer Inst 2003 95: 1556-1557.[Extract] [Full Text] [PDF]
- Re: Zinc Supplement Use and Risk of Prostate Cancer
- Leslie C. Costello, Renty B. Franklin, Pei Feng, and Ming Tan
J Natl Cancer Inst 2004 96: 239-240.[Extract] [Full Text] [PDF]
- RESPONSE: Re: Zinc Supplement Use and Risk of Prostate Cancer
- Michael F. Leitzmann and Edward Giovannucci
J Natl Cancer Inst 2004 96: 240-241.[Extract] [Full Text] [PDF]
- Re: Zinc Supplement Use and Risk of Prostate Cancer
- Ellen T. Chang, Maria Hedelin, Hans-Olov Adami, Henrik Grönberg, and Katarina A. Bälter
J Natl Cancer Inst 2004 96: 1108.[Extract] [Full Text] [PDF]
- RESPONSE: Re: Zinc Supplement Use and Risk of Prostate Cancer
- Michael F. Leitzmann and Edward Giovannucci
J Natl Cancer Inst 2004 96: 1108-1109.[Extract] [Full Text] [PDF]
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