Figure 4: Representative VEGF+ immunohistochemistry of lung vascular endothelial histopathology. (A) CON group at 24h. (B) SAP group at 24h. (C) ROSI group at 24h. (D) GW9662 group at 24h. Comparison of the gray value of VEGF+ of lung. B,C,DP<0.05 vs. the CON group.CP<0.05 vs. the SAP group. DP<0.05 vs. the ROSI group (magnification of ×40).