Fig. 4.
Statistical charts in this study. (A) Neurosphere attachment ratios under serum-free conditions after one, three, and five days of culture. Three random fields were counted and displayed as the means ±standard error. Statistically significant one-way ANOVA results are indicated as follows: one symbol, p < 0.05; two symbols, p < 0.01; and three symbols, p < 0.001. *, compared with control group at the first day; #, compared with control group at the third day; &, compared with control group at the fifth day. (B) The number of cells migrated from neurospheres after five days of culture. Six random fields were counted and displayed as the means ±standard error. Statistically significant one-way ANOVA results are indicated as follows: one symbol, p < 0.05; two symbols, p < 0.01; and three symbols, p < 0.001. *, compared with group A; #, compared with group B; &, compared with group C; $, compared with group D. (C) Subtype cell counts after differentiation after seven days of culture. Six random fields were counted and are displayed as the means ±standard error. Statistically significant one-way ANOVA results are indicated as follows: one symbol, p < 0.05; two symbols, p < 0.01; and three symbols, p < 0.001. *, compared with group A; #, compared with group B; and &, compared with the percentage of group C; $, compared with control groups. There were no significant differences in the O4-positive cell counts among all groups. (A–D), amino modified surfaces with different densities; (Control), PLL coated surfaces.