FYN and infection: The intra-ARC infusion of sh-Src did not induce any significant change in the expression of Fyn or Lyn in the ARC area (p > 0.05, Dunnett’s post hoc test in one-way ANOVA, Fig. 3e), or Src in either the cerebral cortex or the dorsal horn of the lumbar spinal cord (p > 0.05, see Fig. 3f), indicating that the lentivirus-mediated sh-Src infection in the ARC area was less likely to affect remote CNS areas such as the cerebral cortex and the dorsal horn of the lumbar spinal cord.