Aim: To assess the expressions of vascular endothelial growth factor (VEGF), fms-like tyrosine kinase-1 (Flt-1), and soluble Flt-1 (sFlt-1) genes in healthy normotensive and pre-eclamptic placentas of Korean women.
Methods: We investigated 12 healthy normotensive pregnant women and 10 pre-eclamptic pregnant women at Eulji University Hospital. The obtained placental tissues were analyzed using reverse transcription polymerase chain reaction and real-time quantitative polymerase chain reaction.
Results: The sFlt-1 messenger ribonucleic acid (mRNA) level was elevated 2.6 times more in pre-eclamptic placentas than in normal control placentas. However, the VEGF mRNA level of pre-eclamptic placentas was decreased. There was no difference in the Flt-1 mRNA level between control and pre-eclamptic placentas.
Conclusions: Our study showed that expressions of genes relating to angiogenesis were altered in Korean pre-eclamptic placentas. These results suggest that the alteration in expressions of sFlt-1 and VEGF genes might be associated with the pathogenesis of pre-eclampsia.
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http://dx.doi.org/10.1111/j.1447-0756.2010.01208.x | DOI Listing |
Pak J Med Sci
December 2024
Sehrish Hussain, Department of Anatomy, Basic Medical Sciences Institute (BMSI), Jinnah Postgraduate Medical Centre (JPMC), Karachi, Pakistan.
Objective: To determine the association of serum Vitamin-D levels and placental laminin expression in pre-eclamptic and normotensive women.
Methods: This cross-sectional study was conducted from July 2018 to February 2021, in the Department of Anatomy, Basic Medical Sciences Institute (BMSI) in collaboration with the Department of Gynecology and Obstetrics after the approval from Institutional Review Board (IRB), Jinnah Postgraduate Medical Centre JPMC, Karachi. The placentae were collected from 120 women, segregated into two cohorts as normotensive (NT) (n=60) and pre-eclamptic (PE) (n=60) and serum Vitamin-D levels measured.
High Blood Press Cardiovasc Prev
November 2024
Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
Introduction: Despite many decades of research, the exact etiology of pre-eclampsia (PE) remains unknown. Several etiopathologies have been suggested, including the role of the placental microbiota. However, the existence of placental microbiota and its possible contribution to pregnancy complications, particularly PE has remained controversial.
View Article and Find Full Text PDFMol Cell Endocrinol
September 2024
Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan; Center for Maternal-Neonatal Care, Nagoya University Hospital, Nagoya, Aichi, 466-8560, Japan. Electronic address:
Adequate extravillous trophoblast (EVT) invasion into the maternal decidua is important for human placental development. We identified that E2F transcription factor 8 (E2F8) suppresses EVT invasion, and that tight junction protein-1 (TJP1) is a potential downstream target gene of E2F8. We investigated the role of TJP1 in the human placenta and regulation of TJP1 expression by E2F8.
View Article and Find Full Text PDFInt J Mol Sci
April 2024
Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima 734-8551, Japan.
The biologically significant phenomenon that the fetus can survive immune attacks from the mother has been demonstrated in mammals. The survival mechanism depends on the fetus and placenta actively defending themselves against attacks by maternal T cells, achieved through the localized depletion of the amino acid L-tryptophan by an enzyme called indoleamine 2,3-dioxygenase. These findings were entirely unexpected and pose important questions regarding diseases related to human pregnancy and their prevention during human pregnancy.
View Article and Find Full Text PDFBiomedicines
April 2024
Laboratory of Morphology, Department of Histology and Embryology, School of Medicine, University of Mostar, 88000 Mostar, Bosnia and Herzegovina.
Background: this study aimed to determine the expression of RNA-binding oncofetal proteins IMP3 and LIN28A in extravillous (EVT) and villous trophoblast (VT) cells of placentas from pre-eclamptic (PE) pregnancies to better understand the pathogenesis of PE.
Methods: placental tissue of 10 patients with PE with severe features, 10 patients with PE without severe features and 20 age-matched healthy pregnancy controls were analyzed by immunohistochemistry, double immunofluorescence and qPCR.
Results: We found a decreased percentage of IMP3-positive EVT cells in PE with and without severe features compared to that of the healthy control ( < 0.
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