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Novel Role of Pin1-Cis P-Tau-ApoE Axis in the Pathogenesis of Preeclampsia and Its Connection with Dementia.
Biomedicines
December 2024
Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX 77555, USA.
Preeclampsia (preE) is a severe multisystem hypertensive syndrome of pregnancy associated with ischemia/hypoxia, angiogenic imbalance, apolipoprotein E (ApoE)-mediated dyslipidemia, placental insufficiency, and inflammation at the maternal-fetal interface. Our recent data further suggest that preE is associated with impaired autophagy, vascular dysfunction, and proteinopathy/tauopathy disorder, similar to neurodegenerative diseases such as Alzheimer's disease (AD), including the presence of the cis stereo-isoform of phosphorylated tau (cis P-tau), amyloid-β, and transthyretin in the placenta and circulation. This review provides an overview of the factors that may lead to the induction and accumulation of cis P-tau-like proteins by focusing on the inactivation of peptidyl-prolyl cis-trans isomerase (Pin1) that catalyzes the cis to trans isomerization of P-tau.
View Article and Find Full Text PDFParacetamol, its metabolites, and their transfer between maternal circulation and fetal brain in mono- and combination therapies.
Pharmacol Rep
January 2025
Department of Neuroscience, School of Translational Medicine, Monash University, Melbourne, VIC, 3004, Australia.
Background: Due to its availability and perceived safety, paracetamol is recommended even during pregnancy and for neonates. It is used frequently alone or in combination with other drugs required for the treatment of various chronic conditions. The aim of this study was to investigate potential effects of drug interactions on paracetamol metabolism and its placental transfer and entry into the developing brain.
View Article and Find Full Text PDFPlacental 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.
Introduction Fetal extrahepatic portosystemic Venous Shunt (FEPSVS) are vascular malformations that divert placental and bowel blood from the liver into the systemic circulation. When uncorrected, it can lead to severe pathologic consequences after birth. Objective To report our method of prenatal diagnosis, the developing insight regarding prenatal counseling, and postnatal treatment.
View Article and Find Full Text PDFFine-tuned programming of placenta trophoblast determines optimal maternal-fetal nutrient allocation.
Curr Opin Genet Dev
January 2025
State Key Laboratory of Stem Cell and Reproductive Biology, Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China; University of Chinese Academy of Sciences, Beijing, China. Electronic address:
Maternal health and fetal survival during pregnancy encapsulate a paradox of cooperation and competition. One particularly intriguing aspect of this paradox involves the optimal allocation of nutrients between the mother and fetus. Despite this, the precise mechanisms governing nutrient allocation remain elusive.
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