Figure 4. Volcano plot depicting differential gene expression of K562 cells treated with BeWo+MEHP- conditioned medium for 24 hours, compared with BeWo-conditioned medium (vehicle control with no MEHP).

Genes are plotted by log₂(fold change) (x-axis), and −log₁₀(adjusted p-values) (y-axis). Horizontal line shows significance cutoff (adjusted p-value<0.05). Blue points have adjusted p-value < 0.05 Vertical lines show fold-change cutoffs (absolute log₂(fold-change) > 1). Green points have log-fold change > 1.0.