Fig. 1

VEGF expression in retinal tissues measured by immunohistochemistry

Red arrows refers to the VEGF immunohistochemical staining in the wall of endothelial cells. (panel A = Group I) exhibited low VEGF expression (x400). (B and C; Group II) exhibited high VEGF expression with high immunoreactivity in the ganglion cell layer (GCL), the inner nuclear layer (INL), and the border between the outer nuclear layer and the outer segment of the photoreceptors, and congestion of capillaries (yellow arrow) in the INL and GCL (x400). (D; Group III) exhibited high VEGF expression and capillary congestion (yellow arrow) (x400). (E and F; Group IV) exhibited diffuse low expression in two rats on low (x200) and high power (x400) views, respectively