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. 2022 Jan 29;2022:7530102. doi: 10.1155/2022/7530102

Figure 4.

Figure 4

Exosomal miR-21 participates in EA by promoting regeneration of nerve fibers. (a) Immunofluorescence staining of NF200 (red). Bar = 50 μm. (b) The number of NF200 positive cells indicates the number of regenerated axons. ∗P < 0.05; ∗∗P < 0.01 compared with the model group; ##P < 0.01 compared with the EA group. (c) Immunofluorescence staining of MBP (red). Bar = 25 μm. (d) Statistics of the number of MBP positive cells, which indicated the number of myelin sheaths. ∗∗P < 0.01 compared with the model group; ##P < 0.01 compared with the EA group.