Fig. 3.

FE@EVs hydrogel enhance motor function and suppresses the cavity formation after SCI. (A, B) The behavior assay of BBB scores and footprint assay (at 56 days postinjury, yellow arrow pointed the posterior limb prints); *P < 0.05 indicate FE@EVs versus EVs group, ^%P < 0.05 indicate FE versus EVs group. (C) H&E staining images of longitudinal sections at 28 and 56 days postinjury. (D) The lesion site area and the cavity area were quantified according to the H&E staining. N ≥ 8 per group for BBB score and footprint assay, N ≥ 4 per group for H&E staining at 28 days and 56 days postinjury. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)