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Figure 3 | Arthritis Research & Therapy

Figure 3

From: Expression and regulation of neurotrophins in the nondegenerate and degenerate human intervertebral disc

Figure 3

Neurotrophin immunopositivity in the nondegenerate and degenerate intervertebral disc. Histograms illustrating the percentage of (a) positive nerve growth factor (NGF) cells and (b) brain-derived neurotrophic factor (BDNF) immunopositive cells in the nucleus pulposus (NP), inner annulus fibrosus (IAF) and outer annulus fibrosus (OAF) regions of nondegenerate, moderately degenerate and severely degenerate intervertebral disc (IVD) tissue. *Significance between disease states, **significance between regions of the IVD (P < 0.05). Data presented as the mean ± standard error of the mean.

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