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. 2020 Dec 31;2020:8861994. doi: 10.1155/2020/8861994

Figure 1.

Figure 1

Effects of EA on CFA-induced mechanical and thermal pain threshold (n = 7/group). The paw withdrawal threshold was tested at base, 1 day, 3 days, 5 days, and 7 days after CFA injection. (a) The paw withdrawal frequency of the CFA group was increase, compared with the Sham group on the ipsilateral side. EA stimulation significantly decreased the paw withdrawal frequency. Sham EA has no effect on paw withdrawal frequency. (c) The paw withdrawal latency of the CFA group was increased, compared with the Sham group on the ipsilateral side. EA stimulation significantly increased the paw withdrawal latency. Sham EA has no effect on paw withdrawal latency. (b, d) No difference among the 4 groups on the contralateral side. P < 0.05, ∗∗P < 0.01 vs. sham group; #P < 0.05, ##P < 0.01 vs. CFA group.