Fig. 1
From: Identification of hub genes in the subacute spinal cord injury in rats
Research roadmap and data preprocessing. a Research roadmap. b PCA chart of three data sets without removing batch effect. c PCA chart of three data sets after removing batch effect. d Venn diagram of DEGs in sham operation group and 3 d, 7 d, and 14 d groups after subacute SCI. In each annotation circle, Red represented the number of up-regulated genes, Blue represented the number of down-regulated genes, and Yellow represented the number of genes with the opposite trend in the intersection set. Principal component analysis, PCA