“At 200 microM concentration, gossypol significantly decreased dihydrotestosterone ( DHT ) formation by 21% when compared to that of control (0.6 pm/mg protein/min), and decreased 5 alpha-androstane-3 alpha,17 beta-diol formation by 35% vs control (2 pm/mg protein/min).”
“In the current study, gossypol was found to have inhibitory effects of noncompetitive nature on 5 alpha-reductase, which catalyzes the conversion of testosterone to DHT , and on 3 alpha-hydroxysteroid dehydrogenase (3 alpha-HSD), which interconverts DHT and dihydroandrostanediol.”