Figure 9. The mRNA expression levels of indicators in the mitochondrial apoptosis and PTEN/PI3K/AKT pathway under CPF and/or GSLS treatments in HT22 cells. Values are expressed as the means ± standard deviations (n = 3). #p < 0.05, ##p < 0.01, ###p < 0.001, ####p < 0.0001 vs. control group; *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001 vs. CPF group.