Fig. 9

Correlation of proinflammatory factor levels with Smad3 and pSmad3 expression in mouse SN. a–d Significant inverse correlation of IL-1β (a), IL-6 (b), iNOS (c), and ROS (d) levels with pSmad3 expression in mouse SN. e–h Significant inverse correlation of IL-1β (e), IL-6 (f), iNOS (g), and ROS (h) levels with Smad3 expression in mouse SN. Aged mice: N = 6; young mice: N = 6