TLR4 and fibromyalgia: The TLR4 and MyD88 levels increased upon fibromyalgia induction (Figure 3F,G, Tukey’s test, * p < 0.05, n = 6), which was attenuated by the EA treatment and PD-L1 injection (Figure 3F,G, Tukey’s test, # p < 0.05, n = 6).