Avian extraembryonic membranes respond to yolk corticosterone early in development [PDF]
Biology Open, 2023 ABSTRACT During times of maternal stress, developing embryos can be exposed to elevated levels of glucocorticoids, which can affect development and permanently alter offspring phenotype. In placental species, the placenta mediates fetal exposure to maternal glucocorticoids via metabolism, yet the placenta itself responds to ...
Emily P. Harders +2 more
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Endocrine activity of extraembryonic membranes extends beyond placental amniotes. [PDF]
PLoS ONE, 2009 BackgroundDuring development, all amniotes (mammals, reptiles, and birds) form extraembryonic membranes, which regulate gas and water exchange, remove metabolic wastes, provide shock absorption, and transfer maternally derived nutrients.
Lori C Albergotti +3 more
doaj +7 more sources
In-depth proteome characterization of endometrium and extraembryonic membranes during implantation in pig [PDF]
Journal of Animal Science and BiotechnologyBackground Proteome characterization of the porcine endometrium and extraembryonic membranes is important to understand mother-embryo cross-communication.
Maria A. Gil +5 more
doaj +7 more sources
Extraembryonic membrane morphology in greater rheas (Rhea americana americana Linnaeus, 1758) [PDF]
Zoomorphology, 2023 The greater rhea, Rhea americana, is a wild ratite of high scientific importance and significant and zootechnical value, especially considering the current development state of Brazilian poultry production, where research aimed at increasing the productivity of these animals has become extremely relevant.
Ana Indira Bezerra Barros Gadelha +7 more
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Integrin-Dependent Apposition of Drosophila Extraembryonic Membranes Promotes Morphogenesis and Prevents Anoikis [PDF]
Current Biology, 2004 Two extraembryonic tissues form early in Drosophila development. One, the amnioserosa, has been implicated in the morphogenetic processes of germ band retraction and dorsal closure. The developmental role of the other, the yolk sac, is obscure.By using live-imaging techniques, we report intimate interactions between the amnioserosa and the yolk sac ...
Bruce H. Reed +3 more
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Semiautonomous Development of the Extraembryonic Membranes in the Chicken Embryo
Poultry Science, 2006 Based on an old paradigm that the extra-embryonic membranes develop semiautonomously from the embryo, it can also be postulated that subembryonic fluid (SEF) will be formed semiautonomously against embryonic growth, because the formation of SEF is mediated by the yolk sac membrane.
Nadia Everaert +7 more
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Neural tube opening and abnormal extraembryonic membrane development in SEC23A deficient mice [PDF]
Scientific Reports, 2015 AbstractCOPII (coat protein complex-II) vesicles transport proteins from the endoplasmic reticulum (ER) to the Golgi. Higher eukaryotes have two or more paralogs of most COPII components. Here we characterize mice deficient for SEC23A and studied interactions of Sec23a null allele with the previously reported Sec23b null allele. SEC23A deficiency leads
Min Zhu +6 more
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Innovative Chorioallantoic Membrane Model as Valuable Tool in Diagnostics and Testing of Domestic Animal Cancers. [PDF]
Transbound Emerg DisIn recent years, particular attention has been paid to the possible connections, similarities, and potential uses of animals, especially pets (dogs and cats), in research on the causes, characteristics, and treatment of cancers occurring in pets and humans. One of the most promising experimental research models used to explore these issues is the avian
Sczasny A +3 more
europepmc +2 more sources
Conceptus Elongation, Implantation, and Early Placental Development in Species with Central Implantation: Pigs, Sheep, and Cows [PDF]
BiomoleculesSpecies have different strategies for implantation and placentation. Much can be learned about general molecular and cellular biology through the examination and comparison of these differences.
Gregory A. Johnson +10 more
doaj +2 more sources
Prominent Expression of Xenobiotic Efflux Transporters in Mouse Extraembryonic Fetal Membranes Compared with Placenta [PDF]
Drug Metabolism and Disposition, 2008 Fetal exposure to xenobiotics can be restricted by transporters at the interface between maternal and fetal circulation. Previous work identified transporters in the placenta; however, less is known about the presence of these transporters in the fetal membranes (i.e., yolk sac and amniotic membranes). The purpose of this study was to quantify mRNA and
Lauren M. Aleksunes +2 more
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