Serum Metabolomics Analysis of Asthma in Different Inflammatory Phenotypes: A Cross-Sectional Study in Northeast China

Figure 3

S-plots of all OPLS-DA models. All identified metabolites in different OPLS-DA model, including EA versus NEA in ESI⁺ (a) and in ESI^- (e); EA versus HC in ESI⁺ (b) and in ESI^- (f); NEA versus HC in ESI⁺ (c) and in ESI^- (g); Asthma versus HC in ESI⁺ (d) and in ESI^- (h). All significantly changed metabolites identified were marked as red triangle. Other components were green points. The detailed information on the correlation and covariation values about every distinct metabolites were summarized in Table S4.