VEGFA and CGRP expression compared among Veh + Ti, BP + Ti and BP + Mg groups (A) Representative images of IHC staining of CD31, VEGFA and CGRP in three groups, respectively. Black arrow points the positive stained cell. Scale bar: 400 μm (B) Corresponding quantitative data of VEGFA and CGRP. Column and bar indicate mean and SD, respectively. n = 5 for each group, by One-way ANOVA with Bonferroni post hoc test. ∗∗∗, p < 0.001.