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. 2021 Jul 1;11:13694. doi: 10.1038/s41598-021-93014-0

Figure 1.

Figure 1

EA at LI4 and LI11 acupoints prevents cocaine-induced CPP reinstatement in mice. (A) Timeline for the CPP testing, training, cocaine administration, and experimental interventions. (B) CPP scores for the CO group, CO + EA group, CO + MA group, and CO + LIDO + EA group, obtained during PRE, POST, EXT, and REIN testing. All data are expressed as the means ± S.E.M. (n = 7 mice per group). *p < 0.05; **p < 0.01 versus the PRE phases; &p < 0.05 versus the REIN phases; ##p < 0.01 versus the CO group; ++p < 0.01 versus the EA group (two-way ANOVA with the LSD post-hoc test). Abbreviations: CPP = Cocaine-induced conditioned place preference; PRE = Preconditioning testing; POST = Post-conditioning testing; EXT = Extinction of cocaine CPP testing; REIN = Cocaine-primed reinstatement testing; CO = No intervention; CO + EA = EA treatment; CO + MA = MA treatment; CO + LIDO + EA = Lidocaine (2%, 10 μL) injection followed by EA treatment.