RBFOX3 and injury: As shown in Figure 4, the BrdU+/NeuN+ ratio in the model group was slightly higher than that in the blank control group (p > 0.05), and the BrdU+/NeuN+ ratio in the 0.1 g kg−1 AMP-N-a-1 group was significantly higher than that in the model group and the blank control group (p < 0.05), thereby indicating that the cell proliferation may increase slightly after the intraperitoneal injection of D-galactose in mice, and the increase in BrdU+ cells may be a compensatory increase induced by the body’s repair of subacute brain injury.