Fig. 6From: Ginsenosides induce extensive changes in gene expression and inhibit oxidative stress-induced apoptosis in human lens epithelial cellsHierarchical clustering. Genes in the data set were subjected to complete-linkage hierarchical clustering using a Euclidean distance metric. Genes that are upregulated appear in red, and those that are downregulated appear in green, with the relative log2 (ratio) reflected by the intensity of the colorBack to article page