Feb 7, 1998

Plasma insulin-like growth factor-I and prostate cancer risk: a prospective study

Science
June M ChanM Pollak

Abstract

Insulin-like growth factor-I (IGF-I) is a mitogen for prostate epithelial cells. To investigate associations between plasma IGF levels and prostate cancer risk, a nested case-control study within the Physicians' Health Study was conducted on prospectively collected plasma from 152 cases and 152 controls. A strong positive association was observed between IGF-I levels and prostate cancer risk. Men in the highest quartile of IGF-I levels had a relative risk of 4.3 (95 percent confidence interval 1.8 to 10.6) compared with men in the lowest quartile. This association was independent of baseline prostate-specific antigen levels. Identification of plasma IGF-I as a predictor of prostate cancer risk may have implications for risk reduction and treatment.

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Mentioned in this Paper

Confidence Intervals
Prostatic Neoplasms
Insulin-Like Growth Factor I
Squamous Transitional Epithelial Cell Count
Insulin-Like Growth Factor Binding Protein 3
Prostate Carcinoma
Odds Ratio
Insulin-Like Growth Factor II
Disease Susceptibility
Nested Case-Control Studies

About this Paper

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