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. 2020 Sep 29;8:e9946. doi: 10.7717/peerj.9946

Figure 2. Identification of differentially expressed genes (DEGs) between breast cancer tumor tissues and normal tissues.

Figure 2

(A–E) Volcano plots of differential expression analysis for GSE3744, GSE21422, GSE42568, GSE61304, and GSE65194. Red: up-regulated; green: down-regulated. (F) Up-regulated DEGs selected by integrating five GEO datasets. (G) Down-regulated DEGs selected by integrating 5 GEO datasets. (H) Up-regulated overlapping DEGs obtained by integrating GEO datasets and TCGA BRCA dataset. (I) Down-regulated overlapping DEGs obtained by integrating GEO datasets and TCGA BRCA dataset.