Journal
ASIAN JOURNAL OF ANDROLOGY
Volume 10, Issue 2, Pages 207-213Publisher
WOLTERS KLUWER MEDKNOW PUBLICATIONS
DOI: 10.1111/j.1745-7262.2008.00296.x
Keywords
prostate; prostate cancer; testosterone; insulin-like growth factor; insulin-like growth factor-binding protein-3
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Aim: To investigate the relationships of serum testosterone, insulin-like growth factor (IGF)-1 and IGF-binding protein (IGFBP)-3 levels with prostate cancer risk and also with known prognostic parameters of prostate cancer in Korean men who received radical retropubic prostatectomy (RRP) for clinically-localized prostate cancer. Methods: Serum levels of total testosterone, free testosterone, IGF-1 and IGFBP-3 were determined in 592 patients who subsequently received prostate biopsy. Results were compared between patients who eventually received RRP for prostate cancer (n = 159) and those who were not diagnosed with prostate cancer from biopsy (control group, n = 433). Among the prostate cancer only patients, serum hormonal levels obtained were analyzed in relation to serum prostate specific antigen (PSA), pathological T stage and pathological Gleason score. Results: Prostate cancer patients and the control group demonstrated no significant differences regarding serum levels of total testosterone, free testosterone, IGF-1 and IGFBP-3 across the different age groups. Among the cancer only patients, no significant associations were observed for serum levels of total testosterone, free testosterone, IGF-1 and IGFBP-3 levels with pathological T stage, pathological Gleason score and preoperative PSA. Conclusion: Our data indicate that simple quantifications of serum testosterone and IGF-1 along with IGFBP-3 levels might not provide useful clinical information in the diagnosis of clinically localized prostate cancer in Korean men. Also, our results suggest that serum levels of testosterone, IGF-1 and IGFBP-3 might not be significantly associated with known prognostic factors of clinically localized prostate cancer in Korean men.
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