Fig. 4.

In vivo assessment of facial nerve repair and functional recovery. (A) Photos of nerve injury site and facial functional assessments at 0d and 28d in experimental group. (B) Comparison of the total scores of facial nerve function assessment. (C) EMG detection of nerve conduction velocity. (D,E,F) Staining results of H&E and TB. Scale bars: 50, 10 μm. (G) Quantification of facial nerve function-related gene levels. (H) The protein expressions of NeuN, βIII, NF200, S100, α-SMA, Collagen I. scale bars: 50 μm. (n = 5, G1: Sham. G2: PBS-treated. G3: GelMA/HAMA. G4: BExos@GelMA/HAMA. ∗p < 0.05; ∗∗p < 0.01; ∗∗∗p < 0.001.)