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. 2016 Jun 27;11(6):e0157964. doi: 10.1371/journal.pone.0157964

Fig 3. Metabolic profile of macrophages exposed to combustion aerosols.

Fig 3

(a) Principal Component Analysis shows separation of fuel types, but no separation by presence of particles. (b) Heatmap represents metabolites with significantly differing abundances between treatments (ANOVA test, p < 0.01). Data was batch normalized, and metabolites found in less than 80% of all treatments were removed. DF: Diesel Fuel, HFO: Heavy Fuel Oil, f: filtered aerosol exposure (n = 4), uf: unfiltered (complete) aerosol exposure (n = 5).