Fig. 4From: A phosphodiesterase 5 inhibitor, tadalafil, suppresses stromal predominance and inflammation in a rat model of nonbacterial prostatitisEffect of tadalafil on IL-1β, IL-8, and TNF-α levels in the prostate of NBP and non-NBP rats. Each assay was performed three times and each bar represents the mean ± SD (n = 10). * P < 0.05, ** P < 0.01Back to article page