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clinicaltrials.gov Identifier: NCT00091637.

assess MVD. Ten consecutive, nonoverlapping high-power fields were analysed in a blinded fashion. RESULTSIn all, 31 men received finasteride and 33 placebo; the groups were similar in patient age, resected prostate weight, preoperative catheterization, prostate-specific antigen level, aspirin use, spinal anaesthesia and postoperative diagnosis of prostate cancer. The mean (95% confidence interval) MVD was significantly lower in the finasteride group (60, 55-65) than in the placebo group (71, 64-78; P < 0.01). Similarly, the mean expression of VEGF was significantly lower in the finasteride group (47, 43-52 vs 61, 54-67; P < 0.001) CONCLUSIONFinasteride inhibits angiogenic growth factors leading to reduced vascularity, and this is the basis of its action in reducing haematuria of prostatic origin. The present study shows that finasteride influences the prostatic microvasculature after only 2 weeks exposure.

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