As shown in Figure 8, 28 days post-surgery, SLC41A1 protein expression in the bilateral retina was downregulated by 67.42% ± 6.82% and 61.00% ± 8.00% in the PD group and by 60.44% ± 13.19% and 53.06% ± 10.20% in the PD/MgSO4 group compared to the control group (p < 0.01). Here, SLC41A1 is linked to Parkinson disease.