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. 2015 Jan 15;7(1):66–78.

Figure 2.

Figure 2

Melatonin inhibited TLR4/NF-ĸB signaling in the pulp of AP. A. AP induced the up-regulation of TLR4 and NF-ĸB expression at the different time points of the AP group. B. Abdominal injection of melatonin inhibited the increased level of TLR4 and NF-ĸB expression at 1 d of AP rats. C. DAB staining of TLR4 and NF-ĸB of AP and AP+M group at 1 d (bar=50 μm；n=8). SHAM: results in the SHAM group; AP-1: results in the AP group at 1 d; AP-3: results in the AP group at 3 d; AP-5: results in the AP group at 5 d. **P<0.01 vs. SHAM; n=8.