Fig. 9
SiO2 NPs induce the activation of retinal glial cells and reduce RGCs. Retinal sections were prepared as described in Fig. 6. At 1 d (A), 7 d (B), and 14 d (C) after SiO2 NP injection, retinas were stained with the antibodies of β-III-tubulin (a marker of RGCs) and GFAP (a marker of glial cells). Representative images showing the distributions of β-III-tubulin (red) and GFAP (green). The bar graph depicts the mean fluorescence intensity. *p < 0.05 compared to the sham group. Scale bar: 100 μm