TGFB1 and preeclampsia: The concentrations of TGF-β1 in sera of patients with pregnancy complicated by FGR and preeclampsia were significantly lower when compared to the group of healthy women with uncomplicated pregnancy (TGF-β1: median, 15,092 ng/ml; interquartile ranges, 6,801–20,335 ng/ml, versus median, 17,834 ng/ml; interquartile ranges, 12,245–25,395 ng/ml (p < 0.05)).