Figure 7
From: Repeated exposure of the oral mucosa over 12 months with cold plasma is not carcinogenic in mice
Principal component analysis of gene expression. Only genes consistently expressed across all groups were included for each treatment group and regimen in the principal component analysis (PCA), indicating the dibenzo(a)pyrene (DBP) high regimen (arrowheads) to differ in general much greater from the DBP low and the DBP none groups, in which the plasma or ultraviolet treatment only gave a minor effect (bubble cluster of all samples at the right side).
