Fig. 3

Metabolite identification and analysis from the bone samples. A shows heatmap presentation of clustered (Euclidean) of the normalized data (mean per group). K-means PCA analysis (B) confirmed the cluster analysis with the distances between PK, CO, and other groups. Functional Enrichment (output of MetaboanalyteR) pathways demonstrated altered pathways with the hit targets from the identified metabolites (C). Enrichment analysis for the chemical type of confirmed identified metabolites (based on NIST local library similarity evaluation) covers polar and lipophilic molecules (D)