Fig. 4

The functional recovery of injured nerve at 28 dpi is worse in the cKO group. a, b Gloss images and the wet weights of the gastrocnemius muscles. c, d H&E staining cross sections of gastrocnemius muscles and the ratio of the myofiber area of the injured side compared to the uninjured side. Scale bars: 25 µm. e, f Electrophysiological records and quantification of the CMAP testing showing no difference between cKO group and Cre group in the uninjured side, but the cKO group has significant lower amplitude than the Cre group in the injured side. Data are expressed as the mean ± SEM (n = 6 per group)