RPA of metabolites detected by GC/MS in human plasmaA.

A, The normalized intensities of metabolites in healthy subjects, ELS/MDD patients and non-ELS/MDD patients are expressed with their RPA. Values are presented as mean±SD. BVIP shows variable importance in the projection obtained from the PLS model with a cutoff of 1.0. a, shows variable importance in the projection obtained from the PLS model between the healthy subjects and MDD patients; b, shows variable importance in the projection obtained from the PLS model between the healthy subjects and ELS/MDD patients; c, shows variable importance in the projection obtained from the PLS model between the healthy subjects and non-ELS/MDD patients; d, shows variable importance in the projection obtained from the PLS model between the ELS/MDD patients and non-ELS/MDD patients.