Fig. 6

A–D The expression of MAP2 and SYP around the injury site after TBI in the four groups. E, F Statistical analysis of MAP2⁺ (E) and SYP⁺ (F) cell numbers. G–J Representative TEM images of the four groups. K–M Statistical analysis of the number of myelinated axons per 1000 μm² (K), myelinated axon diameter (L), and myelin sheath thickness (M) in the four groups. ^*P < 0.05, ^**P < 0.01 versus TBI group, ^#P < 0.05, ^##P < 0.01 versus 3D-CH-ST group