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  • Title: Fetal plasma levels of circulating endothelial cell adhesion molecules in normal and preeclamptic pregnancies.
    Author: Krauss T, Azab H, Dietrich M, Augustin HG.
    Journal: Eur J Obstet Gynecol Reprod Biol; 1998 May; 78(1):41-5. PubMed ID: 9605448.
    Abstract:
    OBJECTIVE: Circulating levels of endothelial cell adhesion molecules are elevated in women with preeclampsia. The aim of the present study was to determine levels of these molecules in the fetal circulation of normal pregnancies and pregnancies complicated by preeclampsia. STUDY DESIGN: Fetal plasma samples from the umbilical vein and peripheral maternal plasma and serum sample were collected at delivery from women with preeclampsia and women with normal pregnancy. Women with non-proteinuric pregnancy-induced hypertension (PIH) were excluded from the study. A sandwich ELISA technique was employed to quantitate concentrations of soluble ICAM-1 (CD54), VCAM-1 (CD106), and E-selectin (CD62E). RESULTS: The normal values of soluble endothelial cell adhesion molecules in the fetal circulation were determined as 162+/-45 ng/ml for ICAM-1, 1612+/-582 ng/ml for VCAM-1, and 154+/-58 ng/ml for E-selectin. They were found to markedly differ from the corresponding normal values in the maternal circulation (sICAM-1: 247+/-65 ng/ml; sVCAM-1: 715+/-170 ng/ml; sE-selectin: 34+/-14 ng/ml). The concentrations of sICAM-1, sVCAM-1, and sE-selectin were significantly elevated in women with preeclampsia compared to healthy control pregnant women. In contrast, there was no difference in the circulating fetal concentrations of these molecules between normal pregnancies and pregnancies complicated by preeclampsia. CONCLUSIONS: Normal values of sICAM-1, sVCAM-1, and sE-selectin in fetal circulation are markedly different from the values obtained for healthy adults. Plasma concentrations of these molecules are elevated in women with preeclampsia but not in the fetal circulation of preeclamptic pregnancies suggesting that based on the analysis of soluble adhesion molecules the fetal circulation may not be affected by the factor(s) that lead to disturbed endothelial cell function in women with preeclampsia.
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