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The effects of the dual 5α-reductase inhibitor dutasteride on localized prostate cancer-results from a 4-month pre-radical prostatectomy study

BACKGROUND As dihydrotestosterone (DHT) is the most potent androgen in the prostate, inhibition of the 5α‐reductase isoenzymes, which convert testosterone to DHT, could be an appropriate target for the treatment of prostate cancer. METHODS Eighty‐one men with clinically localized prostate cancer rec...

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Published in:The Prostate 2006-11, Vol.66 (15), p.1674-1685
Main Authors: Gleave, M., Qian, J., Andreou, C., Pommerville, P., Chin, J., Casey, R., Steinhoff, G., Fleshner, N., Bostwick, D., Thomas, L., Rittmaster, R.
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cited_by cdi_FETCH-LOGICAL-c3779-8dfc0485620c1aa96a7f75e82c341b5883deabb5f8ac7015a0290014a6293ddf3
cites cdi_FETCH-LOGICAL-c3779-8dfc0485620c1aa96a7f75e82c341b5883deabb5f8ac7015a0290014a6293ddf3
container_end_page 1685
container_issue 15
container_start_page 1674
container_title The Prostate
container_volume 66
creator Gleave, M.
Qian, J.
Andreou, C.
Pommerville, P.
Chin, J.
Casey, R.
Steinhoff, G.
Fleshner, N.
Bostwick, D.
Thomas, L.
Rittmaster, R.
description BACKGROUND As dihydrotestosterone (DHT) is the most potent androgen in the prostate, inhibition of the 5α‐reductase isoenzymes, which convert testosterone to DHT, could be an appropriate target for the treatment of prostate cancer. METHODS Eighty‐one men with clinically localized prostate cancer received daily dutasteride 3.5 or 0.5 mg, or no therapy for 4 months before radical prostatectomy. Histopathological assessments were conducted on prostatectomy specimens. RESULTS Treatment with dutasteride was associated with reductions in serum and intraprostatic DHT of ≥90%, and a decrease in total prostate and tumor volumes. No effect of dutasteride was noted on Gleason grade. Histopathological effects on benign tissue were similar but less prominent than those seen with androgen ablation, whereas there was no significant difference in cancer histology among the groups. CONCLUSIONS Dutasteride treatment results in similar but less marked changes compared with androgen ablation. Prostate 66: 1674–1685, 2006. © 2006 Wiley‐Liss, Inc.
doi_str_mv 10.1002/pros.20499
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METHODS Eighty‐one men with clinically localized prostate cancer received daily dutasteride 3.5 or 0.5 mg, or no therapy for 4 months before radical prostatectomy. Histopathological assessments were conducted on prostatectomy specimens. RESULTS Treatment with dutasteride was associated with reductions in serum and intraprostatic DHT of ≥90%, and a decrease in total prostate and tumor volumes. No effect of dutasteride was noted on Gleason grade. Histopathological effects on benign tissue were similar but less prominent than those seen with androgen ablation, whereas there was no significant difference in cancer histology among the groups. CONCLUSIONS Dutasteride treatment results in similar but less marked changes compared with androgen ablation. 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subjects 5 alpha reductase
apoptosis
Biological and medical sciences
Gleason score
Gynecology. Andrology. Obstetrics
Male genital diseases
Medical sciences
Nephrology. Urinary tract diseases
proliferation
prostate cancer
treatment
Tumors
Tumors of the urinary system
Urinary tract. Prostate gland
title The effects of the dual 5α-reductase inhibitor dutasteride on localized prostate cancer-results from a 4-month pre-radical prostatectomy study
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