The elusive preeclampsia factor discovered?

Eclampsia, the occurrence of often fatal seizures during pregnancy, is preceded by a condition called preeclampsia. Preeclampsia itself is a serious complication of pregnancy and affects up to 5% of pregnant women. Diagnosed in its early stages by elevated blood pressure and protein levels in the urine, it is the major cause of premature birth and perinatal child death and accounts for approximately 15% of all maternal deaths. Despite decades of intensive research, we still do not know what causes preeclampsia.