Abstract
We performed a complex analysis of total and fetal extracellular DNA, 8 cytokines (IL-2, IL-4, IL-6, IL-8, IL-10, granulocyte-macrophage CSF, IFNγ, and TNFα) in blood plasma obtained from women with preeclampsia prior to labor onset. Total (sensitivity 89.47%, specificity 93.75%) and fetal extracellular DNA (sensitivity 73.68%, specificity 87.5%) were the most accurate parameters determining preeclampsia. We revealed a high correlation (p=3×10-6) between total and fetal extracellular DNA levels in the group of preeclampsia. Preeclampsia significantly increased the levels of macrophage factors IL-10 and IL-6. These cytokines significantly correlated with the levels of total and fetal extracellular DNA in the preeclampsia group. In the control group, such correlations were not observed. These findings obtained suggest that preeclampsia develops upon increased macrophage activity, leading to destruction of the placenta trophoblast cells.
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