Figure 2
From: Deciphering the biological effects of acupuncture treatment modulating multiple metabolism pathways

Metabolic profling characterization and pattern recognition analysis.
(A) UPLC-MS BPI serum chromatograms of acupuncture-treated human in positive mode (a, 0 day; b, 14 day) and negative mode (c, 0 day; d, 14 day); (B) PCA score plot for control and acupuncture-treated group in positive mode; (C) Trajectory analysis of PCA score plots (3-D) for the serum samples in negative mode.