Fig. 2From: Ginsenosides induce extensive changes in gene expression and inhibit oxidative stress-induced apoptosis in human lens epithelial cellsPrincipal component analysis for visualization of microarray data. All genes are plotted on to the first and second principal components. The first principal component (PC1) measures total average expression, and the second (PC2) measures changes in expression induced by ginsenoside. The ellipse at the center contains 95% of the genes. Pink color represents genes from ginsenoside-treated cells and green color indicates genes from control cellsBack to article page