Combining mitochondrial antioxidant mitoquinone and mesenchymal stem cell therapy for amelioration of radiation-induced lung injury: Synergistic regenerative strategy

Figure 5 Principal component analysis results. A: Principal component analysis score plot showing the distribution of the normal control, model, mitoquinone, mesenchymal stem cells, and combination groups; B: Principal component analysis loading plot showing the contributions of the measured variables to PC1 and PC2; C: Scree plot showing the individual and cumulative variance explained by each principal component; D: Bar plot showing the absolute weights of the main damage-related variables contributing to PC1. PC1 and PC2 explained 56.2% and 22.4% of the total variance, respectively, with a cumulative contribution rate of 86.0%. PCA: Principal component analysis.