Fig. 7

The metabolite profiles of placenta and serum on GD12. a Principal component analysis 3D scores plot of placenta at different doses. All samples were clustered into four groups (n = 5 per group). b Principal component analysis 3D scores plot of serum on GD12 with different doses. c Heat map of the metabolites detected in placenta tissue on GD12. Only the significant metabolites with p < 0.05 and q < 0.05 are displayed in the heatmap. d ROC curves for six long-chain unsaturated fatty acids that were detected to have significantly different levels from placental tissue on GD12. AUC the area under the curve