Figure 5 - Comparison of cannulated (Cn), naive (Nv) and sham (Sh) animals in terms of withdrawal latencies of carrageenin (Cg)-inflamed rat paws in response to thermal stimulation. The bars represent groups injected with different doses of carrageenin (intraplantar, ipl). C is the control group injected with saline. The results are the mean ± SEM percent ratio between carrageenin-injected and control paws 1 h after injection of the stimulus in 5-13 animals per group. Data were analyzed by ANOVA followed by Duncan's test. The asterisks indicate significant differences between Nv and Cn animals (P<0.05).