Fig. 1

Brachial plexus root avulsion and reimplantation model, experimental design and rat body weight. A Schematic drawing of the surgical procedures. (1) Anatomical structure of normal C5–C7 spinal cord segments; (2) the right C5–7 ventral and dorsal roots were avulsed; and (3) the C6 ventral root was reimplanted to the surface of the corresponding spinal cord segment. B Schematic drawing of the workflow of the experimental design. C The average body weights in the subgroups at each time point are shown. The data shown are the mean ± SD in each group; ***P < 0.001, **P < 0.01, *P < 0.05. NS normal saline, NAG acetylglutamine