Figure 6From: Salvinorin A reduces mechanical allodynia and spinal neuronal hyperexcitability induced by peripheral formalin injection Effect of vehicle or SA on CB1, CB2 and KOR expression in the dorsal horn of formalin-injected mice (A-C). Data are expressed as mean ± S.E.M of 3 mice per group. * indicates statistically significant differences vs veh/saline 3 day after formalin (P <0.05, t-test).Back to article page