Ursolic acid reduces prostate size and dihydrotestosterone level in a rat model of benign prostatic hyperplasia.
Benign prostatic hyperplasia (BPH) is characterized by hyperplasia of prostatic stromal and epithelial cells, which can lead to lower urinary tract symptoms. The prevalence of BPH increases in an age-dependent manner. We investigated the protective effect of ursolic acid in BPH development using a testosterone-induced BPH rat model. BPH was induced in experimental groups by daily subcutaneous injections of testosterone propionate (TP), for a period of four weeks. Ursolic acid was administrated daily by oral gavage at a dose level of 5mg/kg during the four weeks of TP injections. Animals were sacrificed on the scheduled termination, before prostates were weighed and subjected to histopathological examination. TP and dihydrotestosterone (DHT) levels in the serum and prostate were also measured. BPH-induced animals displayed an increase in prostate weight with increased testosterone and DHT levels in both the serum and prostate. However, ursolic acid treatment resulted in significant reductions in prostate weight and testosterone and DHT levels in both the serum and prostate, compared with BPH-induced animals. Histopathological examination also showed that ursolic acid treatment suppressed TP-induced prostatic hyperplasia. These findings indicate that ursolic acid may effectively inhibit the development of BPH and it may be a useful agent in BPH treatment.[1]References
- Ursolic acid reduces prostate size and dihydrotestosterone level in a rat model of benign prostatic hyperplasia. Shin, I.S., Lee, M.Y., Jung, D.Y., Seo, C.S., Ha, H.K., Shin, H.K. Food Chem. Toxicol. (2012) [Pubmed]
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