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(A) Heat map of the one-way Hierarchical clustering. (B) Distribution of gene expression level between old and young dermal fibroblasts. (C) Scatter plot of gene expression level. (D) Significant gene count by fold change and p-value. n = 4 in each group. Only those genes exhibiting log2 fold change (FC) > 2 and p < 0.05 were considered to be differentially expressed genes.
