Figure 4. Alp inhibited the viability and proliferation of HT22 cells. (A) The effect of Alp on HT22 cell viability; (B) Apoptosis rate of HT 22 cells in each group is shown as bar graphs; (C) Apoptotic histograms from each experimental group. (D, E) Each cell cycle phase in the experimental group. (F) Representative histogram indicating cell cycle arrest; n = 6, Data are presented as mean ± SEM, *p < 0.05, **p < 0.01 vs. control.