When comparing free PlGF levels, women diagnosed with preeclampsia and HELLP syndrome displayed lower PlGF values than women with no preeclampsia, whereas free PlGF levels in women with HELLP syndrome were also significantly decreased in comparison to women with AFLP (59 [39–97] pg/mL versus 208 [106–293] pg/mL; Figure 2B). This evidence concerns the gene PGF and HELLP syndrome.