Fig. 7: PRL treatment decreased activation of the NF-κB pathway

a Immunohistochemical staining of p65, IKKα, and IκBα in intervertebral NP tissues of rats 7 d after initial puncture. b Quantification of p65, IKKα, and IκBα on days 7 and 14 after initial puncture. Scar bar = 50 μm. *P < 0.05 vs. the control group, #P < 0.05 vs. the vehicle group