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Placental Hypoxia-Induced Ferroptosis Drives Vascular Damage in Preeclampsia.
Circ Res
January 2025
Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada (C.P., S.A., J.W.A., R.L., F.N., J.S., I.C.).
Background: Iron is an essential micronutrient for cell survival and growth; however, excess of this metal drives ferroptosis. Although maternal iron imbalance and placental hypoxia are independent contributors to the pathogenesis of preeclampsia, a hypertensive disorder of pregnancy, the mechanisms by which their interaction impinge on maternal and placental health remain elusive.
Methods: We used placentae from normotensive and preeclampsia pregnancy cohorts, human H9 embryonic stem cells differentiated into cytotrophoblast-like cells, and placenta-specific preeclamptic mice.
Quercetin alleviates endothelial dysfunction in preeclampsia by inhibiting ferroptosis and inflammation through EGFR binding.
Commun Biol
January 2025
Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, China.
Preeclampsia (PE) is a pregnancy-specific complication and there remains no effective treatment. Given the limitations on medication use during pregnancy, exploring natural, safe, and effective drugs for PE is worthwhile. We investigate the causal relationship between ferroptosis, inflammation, and PE, and determine the protective effects of quercetin (QCT), a representative compound that is classified as a flavanol, against endothelial dysfunction.
View Article and Find Full Text PDFPregnancy and cardiovascular outcomes among patients post Fontan surgery: a 25-year single-centre retrospective cohort study.
Open Heart
January 2025
Department of Cardiology, Rabin Medical Center, Petah Tikva, Israel.
Introduction: Data on the characteristics and outcomes of pregnancy and among patients with Fontan physiology are limited. We aimed to evaluate the immediate and long-term outcomes among these patients who were followed at our centre.
Methods: We included adult patients who had undergone Fontan surgery for congenital heart disease and were pregnant between 1994 and 2021.
Heme oxygenase/carbon monoxide system affects the placenta and preeclampsia.
Med Gas Res
June 2025
Department of Surgery, Queen Elizabeth Central Hospital, Blantyre, Malawi.
Preeclampsia affects 2% to 8% of pregnancies worldwide and results in significantly high maternal and perinatal morbidity and mortality, with delivery being the only definitive treatment. It is not a single disorder, but rather a manifestation of an insult(s) to the uteroplacental unit -whether maternal, fetal, and/or placental. Multiple etiologies have been implicated, including uteroplacental ischemia, maternal infection and/or inflammation, maternal obesity, sleep disorders, hydatidiform mole, maternal intestinal dysbiosis, autoimmune disorders, fetal diseases, breakdown of maternal-fetal immune tolerance, placental aging, and endocrine disorders.
View Article and Find Full Text PDF[A longitudinal study on the relationship between pre-pregnancy urolithiasis and pre-eclampsia: the mediating effect of hyperuricemia in early pregnancy].
Zhonghua Liu Xing Bing Xue Za Zhi
January 2025
Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha410013, China.
To evaluate the association between pre-pregnancy urolithiasis and pre-eclampsia and to further explore the mediating effect of hyperuricemia in early pregnancy on the relationship between urolithiasis and pre-eclampsia. Pregnant women attending prenatal care in early pregnancy at 7 Maternal and Child Health Hospitals in Hunan Province from August 2014 to December 2019 were recruited to construct a cohort of early pregnancy. The paper questionnaire collected demographic data on pregnant women, pre-pregnancy disease history, and living habits, .
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