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KMID : 1161420160190080746
Journal of Medicinal Food
2016 Volume.19 No. 8 p.746 ~ p.754
Rice Hull Extract Suppresses Benign Prostate Hyperplasia by Decreasing Inflammation and Regulating Cell Proliferation in Rats
Kim Chae-Yun

Chung Kyung-Sook
Cheon Se-Yun
Lee Jong-Hyun
Park Youn-Bum
An Hyo-Jin
Abstract
Even though rice hull has various physiological functions with high antioxidant potential, the molecular mechanism(s) underlying the effects of rice hull on benign prostatic hyperplasia (BPH) have not been evaluated. The aim of this study was to determine the protective effect of rice hull water extract (RHE) against BPH, which is a common disorder in elderly men and involves inflammation that induces an imbalance between cell proliferation and cell death. In this study, RHE-treated mice exhibited lower prostate weights and ratios of prostate weight to body weight compared to those for the BPH-induced group. In addition, RHE-treated mice had lower serum levels of dihydrotestosterone, mRNA expression of 5¥á-reductase2, and protein expressions of proliferating cell nuclear antigen (PCNA). Furthermore, RHE treatment significantly decreased cell proliferation by regulating the expression levels of inflammatory-related proteins (iNOS and COX-2) and apoptosis-associated proteins (Fas, FADD, procaspase-8, ?3, and Bcl-2 family proteins). These results suggest that RHE could protect against the development of BPH through its anti-inflammatory and apoptotic properties and has good potential as a treatment for BPH.
KEYWORD
apoptosis, Bcl-2, benign prostatic hyperplasia (BPH), inflammation, proliferation, rice hull water extract (RHE)
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