Fig. 5
Screening, identification, and overall heat map analysis of differential metabolites. Samples of each group were set as n = 6. A, PCA score plot of sample quality spectrum data for each group. Red represents the control group, green represents the OMV group, blue represents the Res group and cyan represents the Res + OMV group. B, venn graph of differential metabolites. C, cluster heatmap of the sample population. The horizontal axis shows the sample name, the vertical axis shows the metabolite information, the different colors indicate the different values obtained after the standardization of different contents (red represents high content, green represents low content), and Class is the classification of substances.
