Research: VOSTALOVA and COLLEAGUES,

Listed in Issue 244

Abstract

VOSTALOVA and COLLEAGUES,  (1)Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hnevotinska 3, Olomouc 77515, Czech Republic conducted a double-blind, placebo controlled clinical trial to evaluate selenium and silymarin combination in men with lower urinary tract symptoms.

Background

The aim of this double-blind, placebo controlled clinical trial was to assess the effects of a combination of selenium and silymarin in men with lower urinary tract symptoms, benign prostatic hyperplasia and a prostate specific antigen (PSA) ≤2.5ng/ml.

Methodology

The volunteers were randomized to two groups: the first one (n=26) received 240μg selenium (in the form of yeast l-selenomethionine) plus 570mg silymarin daily for 6 months and the second (n=29) received placebo. Outcome measures were changes in the International Prostate Symptom Score (IPSS), bladder volume (V), urinary flow rate, ultrasound estimated postvoid residual urine volume (RV), serum PSA, testosterone and selenium levels, safety clinical biochemistry, hematology and oxidative stress parameters at baseline and on day 180.

Results

The results showed statistically significant differences (p<0.05) between treatment and control groups for the following parameters: IPSS score, urodynamic parameters: maximal rate of urine flow (Qmax), average flow (Qave), V and RV, total PSA value and serum selenium levels.

Conclusion

There was a significant reduction in PSA in the selenium-silymarin group but no effect on blood testosterone level. Overall the treatment was well-tolerated with no adverse effects.

References

Vostalova J(1), Vidlar A, Ulrichova J, Vrbkova J, Simanek V, Student V. Use of selenium-silymarin mix reduces lower urinary tract symptoms and prostate specific antigen in men.  Phytomedicine. 21(1):75-81. Dec 15 2013. doi: 10.1016/j.phymed.2013.07.018. Epub Sep 5 2013.

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