Objective: To determine whether homocyst(e)ine, a relatively new risk
factor for possible endothelial cell dysfunction and premature vascula
r disease, is elevated in nulliparous pregnant women with preeclampsia
. Methods: We measured plasma homocyst(e)ine, folic acid, and vitamin
B-12 levels in 40 nulliparas, 20 with and 20 without preeclampsia at t
he time of their delivery. Results: Mean (+/-standard deviation) plasm
a homocyst(e)ine levels in the 20 nulliparous women with preeclampsia
were significantly higher than in the 20 nulliparous women without pre
eclampsia (8.66 +/- 3.05 versus 4.99 +/- 1.11 mu mol/L, P < .001). Fol
ic acid and vitamin B-12 concentrations were not significantly differe
nt between the two groups. Conclusion: Homocyst(e)ine levels are eleva
ted in pregnant nulliparas with preeclampsia at the time of their deli
very. Further studies are necessary to determine what role homocyst(e)
ine may play in the etiology of preeclampsia. ((C) 1997 by The America
n College of Obstetricians and Gynecologists.)