Figure 2.

Affymetrix gene array analysis of spinal cord tissues during neuropathic pain development in CB2 −/− mice. A, The list of genes that were more strongly regulated in CB2 −/− animals compared with CB2 +/+ mice. B, Genes that were more strongly regulated in CB2 +/+ animals compared with CB2 −/− mice. The intensity and direction of gene regulation are represented in a heat map (red, downregulated; green, upregulated).