Fig. 9From: Substantia nigra Smad3 signaling deficiency: relevance to aging and Parkinson’s disease and roles of microglia, proinflammatory factors, and MAPKCorrelation 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 = 6Back to article page