A, Cell respiration is reduced in HUVECs treated with PE patient serum (PE at <34 weeks’ gestation [n=6]; PE at >34 weeks’ gestation [n=4]). HUVECs treated with 10% preeclamptic serum from PE patients at <34 weeks’ gestation show a significant reduction in the uncoupled respiration rate vs the cells that were treated with nonpreeclamptic serum (n=8). B, The mitochondrial ROS in HUVECs treated with preeclamptic serum (PE at <34 weeks’ gestation [n=6]; PE at >34 weeks’ gestation [n=4]) or with nonpreeclamptic serum (n=8). HUVECs treated with 10% serum from preeclamptic patients at <34 weeks’ gestation showed a significant increase in the mitochondrial ROS production when compared with nonpreeclamptic serum. Data are presented as the mean±standard deviation. The asterisk indicates a significant (P<.05) difference from the control group.
CRTL, control; ET, electron transport; PE, preeclampsia; ROS, reactive oxygen species.