Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 22, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/ijms22063132
Keywords
preeclampsia; two-stage model; uterine artery remodeling; microRNA
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Preeclampsia is a complex and multifaceted syndrome with at least several potential pathways leading to its development. The two-stage model suggests that impaired placentation in early pregnancy leads to reduced placental perfusion, while the second stage involves the onset of maternal clinical symptoms, possibly through novel pathways. Recent advances focus on uterine artery remodeling alterations and the role of microRNAs in preeclampsia.
Preeclampsia affects about 3-8% of all pregnancies. It represents a complex and multifaceted syndrome with at least several potential pathways leading to the development of disease. The main dogma in preeclampsia is the two-stage model of disease. Stage 1 (placental stage) takes place in early pregnancy and is thought to be impaired placentation due to inadequate trophoblastic invasion of the maternal spiral arteries that leads to reduced placental perfusion and release of numerous biological factors causing endothelial damage and development of acute maternal syndrome with systemic multiorgan failure (stage 2-the onset of maternal clinical symptoms, maternal stage). Recently, in the light of the vast body of evidence, two-stage model of preeclampsia has been updated with a few novel pathways leading to clinical manifestation in the second part of pregnancy. This paper reviews current state of knowledge about pathophysiology of preeclampsia and places particular focus on the recent advances in understanding of uterine artery remodeling alterations, as well as the role of microRNAs in preeclampsia.
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