Although there was no statistically significant difference (p = 0.88) in the total expression of GFAP between retinas of WD and LFD mice (Figure 5A–C), increased expression of GFAP was observed in selected Vimentin-positive Muller cells in the WD mice (Figure 5G–I) compared to LFD (Figure 5D–F). The gene discussed is GFAP; the disease is Wilson disease.