Fig. 4
The horizontal axis PC1 and vertical axis PC2 in the figure represent the scores of the first and second-ranked principal components, respectively. Different coloured scatter points represent samples from different experimental groups, and the ellipse is the 95% confidence interval (when the number of biological replicates is less than 4, the 95% confidence ellipse cannot be displayed). PCA analysis of serum metabolomics in each group of rats is shown in the figure. Among them, A and B are the POS and NEG modes of DCM. vs. CTR, C and D are the POS and NEG modes of NDCM. vs. CTR, E and F are the POS and NEG modes of DCM. vs. NDCM, respectively. OPLS-DA analysis of serum metabolomics in each group of rats is also shown in the figure. Among them, G and H are the POS and NEG modes of DCM. vs. CTR, I and J are the POS and NEG modes of NDCM. vs. CTR, K and L are the POS and NEG modes of DCM. vs. NDCM, respectively.
