Normotensive pregnant and non-pregnant women demonstrate similar levels of TGFβ; however, these levels are significantly lower than in preeclamptic women, which clearly suggests that increased TGFβ may be associated somehow with the pathogenesis of preeclampsia [60]; indeed, women with plasma TGFβ concentrations in the highest quartiles showed the highest risk of preeclampsia [61,62]. Here, TGFB1 is linked to preeclampsia.