This study was conducted to investigate the protective effects of sildenafil citrate on testicular injury after testis torsion/detorsion (T/D) in rats. Forty adult male Wistar rats were randomly allocated into four equal groups of ten rats each. Group 1 (Sham-operated); Group 2 (torsion for 2 hours and detorsion for 2 hours); Group 3, (torsion for 2 hours, sildenafil injection and detorsion for 2 hours), and Group 4 (sildenafil injection, torsion for 2 hours and detorsion for 2 hours). The levels of lipid peroxidation (P
Ischemia-reperfusion, Testicular torsion; Sildenafil citrate; Inhibin B; Oxidative stress.