Fig. 3From: Anti-acne effects of Castanea crenata bur extract and identification of active compoundCBE inhibits 5α-reductase activity. The liver microsomal fraction containing 5α-reductase activity was put in contact to finasteride or CBE. After lyophilizing the reaction solution, the remaining testosterone was analyzed by HPLC (n = 3). The data are presented as the mean ± SD, *P < 0.05 compared to 5α-reductase-treated controlBack to article page