Placental FKBPL protein expression was over two-fold higher from women with preeclampsia compared to normotensive controls (control 1.00 ± 0.22 vs preeclampsia 2.28 ± 1.99, fold change, p = 0.02; Fig. 1a and Supplementary Fig. 1). This evidence concerns the gene FKBPL and preeclampsia.