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. 2014 Aug 4;9(8):e103948. doi: 10.1371/journal.pone.0103948

Figure 1. Hierarchical cluster analysis of miRNA array data.

Figure 1

Each column represents a sample, and each row represents a single microRNA. The miRNA clustering tree is shown on the left, and the sample clustering tree appears at the top. The color scale shown on the right illustrates the relative expression level of a miRNA in certain slide: green indicates negative values (down-regulation), representing low relative expression levels; red indicates positive values (up-regulation), representing high relative expression levels; black indicates zero (no change). The sham control group and five TBI groups were clustered together in pairs.