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. 2020 Mar 9;15:553–565. doi: 10.2147/COPD.S229505

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© 2020 Zhou et al.

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Dysregulated metabolites revealed by lipidomics. (A and B) Principle component analysis score plots of all sample groups in positive (A) and negative ion mode (B). Groups are presented in different colors (AECOPD, green; SSCOPD (Stable COPD), blue; healthy control, red; QC, dark blue). (C) Heat map presenting lipids dysregulated in three groups. (D) Heat map presenting lipids that are only dysregulated in AECOPD. (E) Heat map presenting lipids that are only dysregulated in SSCOPD (Stable COPD). (F) Heat map presenting lipids that are only dysregulated in the Healthy control.