Fig. 7: Univariate analysis of metabolites.

Boxplots of individual metabolites (a–c) phosphatidylethanolamines, (d) diglyceride and (e) glycerol, showing relative concentration differences between the untreated and peptide groups. Line across the box: median, square: mean, box: 25th and 75th percentiles, whiskers: 5th and 95th percentiles (univariate t test, P < 0.05).