Figure 2.

Quantitative RT-PCR analysis of the relative expression levels of microRNA-124 (miR-124) and microRNA-21 (miR-21) after spinal cord injury.

The expression of miR-124 was significantly decreased within the first 7 days after spinal cord injury. In comparison, the expression of miR-21 was significantly increased after spinal cord injury. (A) The relative expression of miR-124 on days 1, 3 and 7 after spinal cord injury. (B) The relative expression of miR-21 on days 1, 3 and 7 after spinal cord injury. U6 was used as the internal reference standard. Data are expressed as the mean ± SEM. The differences were compared with one-way analysis of variance and Scheffe's post hoc test. *P < 0.05; **P < 0.01, vs. sham operation group. d: Day(s).