Research Article

Protein Kinase A Is Involved in Neuropathic Pain by Activating the p38MAPK Pathway to Mediate Spinal Cord Cell Apoptosis

Figure 4

Differential expression of the hub genes. (a) Heat map of the hub genes. Red indicates upregulation; blue indicates downregulation. (b) Volcano map of the hub genes. Red, green, and black dots indicate upregulated, downregulated, and unaltered genes, respectively.
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(b)