Fig. 5From: The involvement of Neuregulin-1 in the process of facial nerve injury repair through the utilization of dental pulp stem cellsNRG-1 promotes increased myelin thickness and axonal regeneration in the facial nerve. (A) The alterations in myelin thickness subsequent to facial nerve injury were examined utilizing transmission electron microscopy. The scale is 10 μm. (B) Statistical analysis was conducted to assess the myelinated fiber and axon diameter. (* (P < 0.05), ** (P < 0.001), *** (P < 0.0001))Back to article page