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Related Experiment Videos

Serum androgens and prostate cancer

A M Nomura1, G N Stemmermann, P H Chyou

  • 1Japan-Hawaii Cancer Study, Kuakini Medical Center, Honolulu 96817, USA.

Cancer Epidemiology, Biomarkers & Prevention : a Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology
|August 1, 1996
PubMed
Summary

This study found no strong link between common male hormones and prostate cancer risk. Androgen levels, including testosterone and dihydrotestosterone, did not significantly increase cancer risk in Japanese-American men over 20 years.

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Area of Science:

  • Endocrinology
  • Oncology
  • Epidemiology

Background:

  • Prostate cancer is a significant health concern for men worldwide.
  • The potential role of androgens (male hormones) in prostate cancer development has been a long-standing hypothesis.
  • Previous research has yielded conflicting results regarding the association between hormone levels and prostate cancer risk.

Purpose of the Study:

  • To investigate the association between serum levels of various androgens and the risk of developing prostate cancer.
  • To examine specific hormones including total testosterone, free testosterone, dihydrotestosterone, and others.
  • To determine if hormonal ratios influence prostate cancer risk.

Main Methods:

  • A nested case-control study was conducted within a cohort of 6860 Japanese-American men.

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  • Blood samples were collected between 1971-1975 and stored for over 20 years.
  • Serum levels of six androgens were measured in 141 prostate cancer cases and 141 matched controls using conditional logistic regression.

    • Main Results:

    • No statistically significant association was found between the highest quartiles of 3-alpha-androstanediol glucuronide and androstenedione and prostate cancer risk.
    • Other hormonal measurements and hormonal ratios also showed unremarkable results.
    • The odds ratios for the highest quartiles of 3-alpha-androstanediol glucuronide and androstenedione were 1.37 and 1.24, respectively, with wide confidence intervals.

    Conclusions:

    • The study's findings suggest that the measured androgens are not strongly associated with prostate cancer risk in this population.
    • Further research may be needed to explore other potential hormonal or non-hormonal risk factors.
    • This research contributes to understanding the complex etiology of prostate cancer.