Figure 2.

Hierarchical cluster analysis showing partition clustering of genes most highly expressed in the distal nerve stumps after sciatic nerve injury.

Gene Ontology analysis of distal sciatic nerve stumps of rats at 0.5, 1, 6, 12 and 24 hours post-surgery.

Fisher exact test and chi-square test were applied to the differentially-expressed genes, and significance analysis was performed with the target genes by screening for P < 0.05. The heat map shows the intensity of expression as a function of color, with higher expression in red and lower expression in green or black.