Figure 4.
The correlation analysis of 55 serum differential metabolites. The correlation-based network deduced from 55 differential serum metabolites. Only moderate correlation or above (correlation coefficient ≥0.6 or ≤−0.6, p <0.05) serum metabolite pairs were included. Red edges denote correlation coefficient ≥0.6. Purple edges denote correlation coefficient ≤−0.6. The width of edge represents the intensity of correlation. Nodes denotes metabolites. The color depth and the sizes of nodes represent the number of correlated metabolites linked to the certain metabolite (degree).