Figure 3.
GPR55 KO and WT mice display comparative levels of capsaicin-evoked nocifensive behavior, mechanical and thermal hyperalgesia. (a) A trend toward higher levels of capsaicin-evoked nocifensive behavior was observed in GPR55 KO relative to WT mice but (b) no difference in nocifensive behavior was observed between genotypes in mice receiving vehicle (i.pl.). Data are expressed as mean ± SEM (n = 6 per group). 2-tailed t-test. Levels of capsaicin-evoked (c) thermal and (e) mechanical hypersensitivity do not differ between GPR55 KO and WT mice. (d) Thermal paw withdrawal latencies and (f) mechanical paw withdrawal thresholds did not differ between GPR55 KO and WT mice receiving vehicle (i.pl.). Data are expressed as mean ± SEM (n = 6 per group). 2-way ANOVA.