Fig. 6

RT-PCR validation. a–l Relative expression levels of 12 hub genes. 5 samples per group in duplicate were analyzed using RT-PCR and summarized as mean average ± SE with P < 0.05. A pairwise comparison was made between the sham operation group and 3, 7, and 14 days after subacute SCI, a Mann–Whitney Wilcoxon's test was performed. *P < 0.05, **P < 0.01. RT-PCR, real-time polymerase chain reaction; SCI, spinal cord injury; SE, standard error