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Human umbilical cord MSC‐derived extracellular vesicles (hUCMSC‐EVs) improved functional recovery after sciatic nerve transection. Motor function at 2, 4, 6 and 8 wk post‐neurorrhaphy was analysed on the basis of the walking track test. A, Representative pawprint patterns from rats treated with PBS or hUCMSC‐EVs. B, Quantification of the SFI of PBS‐ and hUCMSC‐EV‐treated rats. n = 12. Data are presented as means ± standard error of the mean (SEM). *P < 0.05
