PGF and preeclampsia: Within the placebo group, IL-6, sTNF-R1 and sTNF-R2 mean concentrations were higher in preeclampsia at 34–38 weeks (FDR < 0.05) and PLGF mean concentrations were lower in preeclampsia at 24–28 and 34–28 weeks (FDR < 0.05; Table 4; Supplementary Figs. 2–3).