Fig. 2From: Multiple biochemical indices and metabolomics of Clonorchis sinensis provide a novel interpretation of biomarkersScatter plots and loading plots for the predicted scores of the two components retained in the orthogonal partial least squares discriminant analysis (OPLS-DA) models for both negative electrospray ionization (ESI−) and positive (ESI+) electrospray ionization. a OPLS-DA model of metabolites in the different infection phases under ESI− mode. b OPLS-DA model of metabolites in the different infection phases under ESI+ mode. c OPLS-DA model of metabolites at 14 days post-infection (dpi) under ESI− mode. d Loading plot of OPLS-DA model of metabolites at 14 dpi under ESI− mode; red circle represents variable importance in projection (VIP) value > 1. e OPLS-DA model of metabolites at 14 dpi under ESI+ mode. f Loading plot of OPLS-DA model of metabolites at 14 dpi under ESI+ mode. Red circle represents differential metabolites and VIP value > 1Back to article page