Figure 6
From: Effects and mechanisms of action of sildenafil citrate in human chorionic arteries
Panel A : Cumulative concentration-response curve for sildenafil citrate from 10-7 M to 10-3 M compared to vehicle at a submaximal U46619 induced contraction, in the presence and absence of L-NAME. *P < 0.05 compared to baseline. Panel B: Histogram of concentration dependent relaxation for sodium nitroprusside in the presence of increasing concentrations of sildenafil citrate. †P < 0.05 compared to control.