Fig. 5: PRL inhibited the expression of inflammatory cytokines
a Immunohistochemical staining of TNF-α and IL-1β in the NP in vivo. b Quantification of TNF-α and IL-1β staining 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
