Fetal endothelium dysfunction is associated with circulating maternal levels of sE-selectin, sVCAM1, and sFlt-1 during pre-eclampsia.
JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE(2011)
Abstract
Objectives. To evaluate the association between endothelial activation markers in the maternal circulation with nitric oxide (NO) synthesis in human umbilical endothelial cells. Study design. This is a case-control study of normal and pre-eclamptic pregnancies. The levels of sE-selectin, soluble vascular cell adhesion molecule 1 (sVCAM-1), and soluble fms-like tyrosine kinase 1 (sFlt-1) were measured by enzyme-linked immunosorbent assay, and histamine-induced NO synthesis was detected by fluorometric examination of the human umbilical vein endothelial cells (HUVECs) isolated from normal and pathological pregnancies. Results. Mothers with severe pre-eclamptic pregnancies have premature and smaller babies than mothers with normal pregnancies (P < 0.05); they also have high maternal plasma levels of sVCAM-1 (similar to 2-fold), sFlt-1 (similar to 2.5-fold), and lower (similar to 70%) histamine-stimulated NO synthesis in HUVECs. A positive relationship between systolic blood pressure (SBP) and plasma levels of sE-selectin, sVCAM-1, and sFlt-1 was demonstrated. Moreover, levels of sE-selectin, sVCAM-1, and sFlt-1 were negatively associated with newborn weight (NBW), gestational age at delivery, and NO synthesis. Women with high E-selectin (> 63 ng/ml), VCAM-1 (> 752 ng/ml), and sFlt-1 (> 15204 pg/ml) showed high risk (similar to 2-fold) for preterm delivery and very preterm delivery, or fetal weight < 1500 g (similar to 1.5-fold) compared with women with low levels. Conclusions. High circulating levels of maternal endothelial dysfunction markers present in pre-eclampsia are associated with decreased NO synthesis in fetal endothelium.
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Key words
Endothelial dysfunctions,pre-eclampsia pregnancy,preterm labor,newborn weight,sE-selectin,sVCAM-1,sFlt-1,gestational age,nitric oxide
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