The levels of urinary nephrin increased steadily with disease severity from 1.9 ± 0.8 ng/mL in women with preeclampsia without severe features, 2.7 ± 0.7 ng/mL in women diagnosed as having preeclampsia with at least one severe feature, and 3.3 ± 1.1 ng/mL in women who had eclampsia (Figure 2). This evidence concerns the gene NPHS1 and preeclampsia.