Spinal nerve injury enhances the expression of P2Y
receptors. Western blot analysis of the P2Y6 (panel A) and P2Y11 (panel B) receptors expression in the ipsilateral dorsal spinal cord obtained from naïve and spinal nerve injured (SNL) rats. The primary antibody for P2Y6 and P2Y11 were pre-adsorbed with the corresponding antigenic peptide (+P, panel C). Data were normalized against β-actin and are expressed as the mean ± S.E.M. of 3 independent rats. *Significantly (p < 0.05) different from the naïve (N) group, as determined by one-way analysis of variance followed by the Student-Newman-Keuls test.