Expression of pro-inflammatory cytokines is increased in the ACC of rats with BPA-induced neuropathic pain. A–C ELISA analysis showing the IL-1β (A), TNF-α (B), and IL-6 (C) expression levels in the ACC of Sham and NeuP rats on days 3, 7, and 14 post-surgery compared with Sham rats (mean ± SD; n = 8; **P < 0.01, ***P < 0.001, ****P < 0.0001 vs Sham group).