Figure 2.
Analysis of urine metabolome between vitiligo patients and healthy controls. (a) PCA analysis of urine metabolome. (SIMCA 14.0 software, Umetrics, Sweden) (b) Score plot of OPLS-DA model between vitiligo patients and healthy controls showed a better separation. (SIMCA 14.0 software, Umetrics, Sweden) (c) Pathway enrichment analysis showed significant enrichment (p < 0.05) of several pathways between the two groups. (MetaboAnalyst 3.0, https://www.metaboanalyst.ca) (d) A metabolites panel consisting of 7alpha-hydroxy-3-oxochol-4-en-24-oic acid, deoxyuridine, 3,4-octadienoylglycine, threoninyl-Proline showed the predictive ability with an AUC of 0.807 in the validation cohort. (MetaboAnalyst 3.0, https://www.metaboanalyst.ca).