Figure 4

Mean proliferative index of groups. Groups: A—negative control (− ve ctrl), B—sildenafil (S), C—l-arginine (l-arg), D—sildenafil and l-arginine (S + l-arg) and E—positive control (+ ve ctrl) (Kruskal–Wallis, p = 0.0017).
Mean proliferative index of groups. Groups: A—negative control (− ve ctrl), B—sildenafil (S), C—l-arginine (l-arg), D—sildenafil and l-arginine (S + l-arg) and E—positive control (+ ve ctrl) (Kruskal–Wallis, p = 0.0017).