Figure 7From: NAAG peptidase inhibition in the periaqueductal gray and rostral ventromedial medulla reduces flinching in the formalin model of inflammation Dose–response curves for ZJ43 injection into the midline RVM presenting the cumulative instances of formalin evoked flinches during phase 1 and phase 2 of the formalin test. Drugs were administered into RVM 10 minutes before the formalin induction of inflammation. Each point represents the mean of responses of 5–7 rats. ZJ43 reduced phase 1 and phase 2 flinching behavior in a dose-dependent manner. **p < 0.01; ***p < 0.001 compared with the phase 1 or phase 2 responses in the saline treated rats.Back to article page