Figure 2From: Formalin injection causes a coordinated spinal cord CO/NO-cGMP signaling system responseAlterations in expression of HO isoforms after the hind paw injection of formalin. Panel A provides a time course analysis of changes in levels of HO-1 mRNA up to 48 hours after formalin injection relative to controls. Panel B summarizes measurements for HO-2 mRNA. Data are presented as mean values +/- S.E.M, *p < 0.05, **p < 0.01, ***p < 0.001.Back to article page