CHGA and preeclampsia: Apart from the two stimulation variants reflecting a preeclampsia-like environment (PLE1: 2%O2 + 1 ng/mL IL6 + 10 μM H2O2 and PLE2: 2%O2 + 10 ng/mL IL6 + 50 μM H2O2), no significant changes in CHGA gene expression were obtained in the HTR-8/SVneo and BeWO cell lines compared to controls (Figure 1).