Results 41 to 50 of about 8,792,528 (401)

Oxygen and development of the human placenta.

Reproduction, 2020
Development of the human placenta takes place in contrasting oxygen concentrations at different stages of gestation, from ~20 mmHg during the first trimester rising to ~60 mmHg at the start of the second trimester before gradually declining to ~40 mmHg ...
G. Burton, T. Cindrova-Davies, H. Yung, E. Jauniaux   +3 more
semanticscholar   +1 more source

Uptake of Cerium Dioxide Nanoparticles and Impact on Viability, Differentiation and Functions of Primary Trophoblast Cells from Human Placenta

Nanomaterials, 2020
The human placenta is at the interface between maternal and fetal circulations, and is crucial for fetal development. The nanoparticles of cerium dioxide (CeO2 NPs) from air pollution are an unevaluated risk during pregnancy.
Margaux Nedder, Sonja Boland, Stéphanie Devineau, Amal Zerrad-Saadi, Jasmina Rogozarski, René Lai-Kuen, Ibtissem Baya, Jean Guibourdenche, Francoise Vibert, Audrey Chissey, Sophie Gil, Xavier Coumoul, Thierry Fournier, Ioana Ferecatu   +13 more
doaj   +1 more source

The endogenous production of hydrogen sulphide in intrauterine tissues [PDF]

, 2009
Background: Hydrogen sulphide is a gas signalling molecule which is produced endogenously from L-cysteine via the enzymes cystathionine beta-synthase (CBS) and cystathionine gamma-lyase (CSE).
Carson, Ray J., Heptinstall, John, Patel, Pushpa, Vatish, Manu, Wang, Rui   +4 more
core   +5 more sources

The variation in transparency of amniotic membrane used in ocular surface regeneration [PDF]

, 2010
Background/aims: Scant consideration has been given to the variation in structure of the human amniotic membrane (AM) at source or to the significance such differences might have on its clinical transparency.
Chen, Bo, Connon, Che John, Doutch, James, Hopkinson, Andy, Kinoshita, Shigeru, Meek, Keith, Mehta, Jod, Nakamura, Takahiro   +7 more
core   +1 more source

Placental syncytiotrophoblast constitutes a major barrier to vertical transmission of Listeria monocytogenes. [PDF]

, 2010
Listeria monocytogenes is an important cause of maternal-fetal infections and serves as a model organism to study these important but poorly understood events. L.
A Beham, A Le Monnier, A Moffett, A Shen, AI Bakardjiev, AI Bakardjiev, AI Bakardjiev, AJ Teberg, AM Carter, Anna I. Bakardjiev, AV Lallemand, B Swaminathan, BF King, C Coutifaris, C Floridon, C Kocks, C Sundstrom, CA Kirkbride, CD Ockleford, DA Drevets, DA Drevets, DA Portnoy, DA Portnoy, David S. Schneider, DK Bishop, E Maidji, E Mylonakis, EG Pamer, G Scheuner, H Bierne, H Koi, HM Cobe, IJ Glomski, J Mengaud, J Skoble, J Trowsdale, JA Theriot, Jennifer R. Robbins, JR Robbins, K Benirschke, K Red-Horse, K Red-Horse, Kasia M. Skrzypczynska, KS Kim, L Forner, L Vicovac, LG Tilney, LM Brown, M Berryman, M Lecuit, M Lecuit, M Lecuit, M O'Riordan, M Pentecost, Mirhan Kapidzic, NM Hunkapiller, O Disson, O Genbacev, O Genbacev, O Genbacev, P Cossart, PB Medawar, PD Barnes, PM Drake, RK Miller, RL Goldenberg, S Fisher, S Jones, S Kaur, S Notermans, SJ Cantle, SJ Fisher, SJ Fisher, SR Sooranna, T Kajii, T Rajabian, T Wollert, TH Schiebler, Varvara B. Zeldovich, Y Huang, Y Shen, Y Zhou, Z Vacek   +82 more
core   +3 more sources

Genomic imprinting in human placentation

Reproductive Medicine and Biology, 2022
Background Genomic imprinting (GI) is a mammalian‐specific epigenetic phenomenon that has been implicated in the evolution of the placenta in mammals.
Eri H. Kobayashi, Shun Shibata, Akira Oike, Norio Kobayashi, Hirotaka Hamada, Hiroaki Okae, Takahiro Arima   +6 more
doaj   +1 more source

Immunosuppressive Protein Signatures Carried by Syncytiotrophoblast-Derived Exosomes and Their Role in Human Pregnancy

Frontiers in Immunology, 2021
The syncytiotrophoblast (STB) of human placenta constitutively and throughout pregnancy produces and secretes exosomes - nanometer-sized membrane-bound extracellular vesicles from the endosomal compartment that convey cell-cell contact ‘by proxy ...
Lucia Mincheva-Nilsson
doaj   +1 more source

Preliminary Study of Iron Concentration in the Human Placenta in Twin Pregnancies

Biomolecules, 2023
Background: Pregnancy significantly increases the demand for iron (Fe) in the female body to facilitate maternal blood volume expansion, placental development, and fetal growth. As Fe flux in pregnancy is significantly influenced by the placenta, the aim
Konrad Grzeszczak, Patrycja Kapczuk, Patrycja Kupnicka, Maciej Mularczyk, Sebastian Kwiatkowski, Dariusz Chlubek, Danuta Kosik-Bogacka   +6 more
doaj   +1 more source

Fetal-derived trophoblast use the apoptotic cytokine tumor necrosis factor-alpha-related apoptosis-inducing ligand to induce smooth muscle cell death. [PDF]

, 2007
Remodeling of the uterine spiral arteries during pregnancy transforms them from high to low resistance vessels that lack vasoconstrictive properties. This process is essential to meet the demand for increased blood flow imposed by the growing fetus. Loss
Aplin, JD, Baker, PN, Cartwright, JE, Freeman, A, Harris, LK, Keogh, RJ, Whitley, GS   +6 more
core   +1 more source

Human placenta has no microbiome but can harbour potential pathogens

Nature, 2019
We sought to determine whether pre-eclampsia, spontaneous preterm birth or the delivery of infants who are small for gestational age were associated with the presence of bacterial DNA in the human placenta. Here we show that there was no evidence for the
M. D. de Goffau, S. Lager, U. Sovio, F. Gaccioli, E. Cook, Sharon J. Peacock, J. Parkhill, D. S. Charnock-Jones, Gordon C. S. Smith   +8 more
semanticscholar   +1 more source