Figure 4.

Effect of hyperbaric oxygen therapy (HBO) on NF-200-positive nerve fibers in the spinal cord of rats with spinal cord injury.

(A) Effect of hyperbaric oxygen therapy on pathological change of spinal cord. Syringomyelia (blue arrows) and loss of NF-200-positive fibers (red arrows) were attenuated after hyperbaric oxygen therapy. (B) Quantification of NF-200-positive nerve fibers in the spinal cord. Hyperbaric oxygen therapy reduced NF-200-positive fiber loss after spinal cord injury. Data are expressed as the mean ± SD (n = 5 rats per group). *P < 0.05, vs. sham group; #P < 0.05, vs. model group (repeated measures analysis of variance and the Student-Newman-Keuls test).