Fig. (4) Expression of TRP channels in CFA-treated and CCI-induced animals. A. Intraplantar CFA administration resulted in significant (p<0.05) increase in expression of TRPV1 in spinal cord as compared to vehicle treated group. B. CCI resulted in significant (p<0.05) increase in expression of TRPV1 in spinal cord tissue as compared to vehicle-treated group. Asterisks (*) represent p<0.05 as compared to vehicle-treated animals. C. Immunohistochemical staining shows enhanced expression of TRPV1 in spinal dorsal horn in CFA-treated and CCI-induced animals.