Results 41 to 50 of about 1,900,583 (232)

Epithelial-mesenchymal transition and bi- and multi-nucleated trophoblast cell formation in ovine conceptuses during the peri-implantation period

The Journal of Reproduction and Development, 2022
Epithelial-mesenchymal transition (EMT), which is common in cancer metastasis, is also observed during developmental processes such as embryo implantation into the maternal endometrium in humans and rodents.
Ayami YAMADA, Kaito OHTSUKI, Natsumi SHIGA, Jonathan A. GREEN, Yuta MATSUNO, Kazuhiko IMAKAWA   +5 more
doaj   +1 more source

Lineage Differentiation Markers as a Proxy for Embryo Viability in Farm Ungulates

Frontiers in Veterinary Science, 2021
Embryonic losses constitute a major burden for reproductive efficiency of farm animals. Pregnancy losses in ungulate species, which include cattle, pigs, sheep and goats, majorly occur during the second week of gestation, when the embryo experiences a ...
Alba Pérez-Gómez, Leopoldo González-Brusi, Pablo Bermejo-Álvarez, Priscila Ramos-Ibeas   +3 more
doaj   +1 more source

Periostin as a Biomarker of the Amniotic Membrane

Stem Cells International, 2012
Tracing the precise developmental origin of amnion and amnion-derived stem cells is still challenging and depends chiefly on analyzing powerful genetic model amniotes like mouse. Profound understanding of the fundamental differences in amnion development
Mariya P. Dobreva, Larissa Lhoest, Paulo N. G. Pereira, Lieve Umans, Susana M. Chuva de Sousa Lopes, An Zwijsen   +5 more
doaj   +1 more source

Male Embryos Produced in vitro Deviate From Their in vivo Counterparts in Placental Gene Expression on Day 32 of Pregnancy

Frontiers in Animal Science, 2022
This study compared the gene expression of extraembryonic membranes (EEM) from in vitro produced (IVP) and in vivo (AI) derived pregnancies. A piece of conceptus (day 18) or chorioallantois (day 32) was used for DNA and RNA isolation and sex ...
Jéssica N. Drum, Jéssica N. Drum, Guilherme Madureira, Camila O. Rosa, Marcelo M. Seneda, Milo C. Wiltbank, Roberto Sartori, M. Sofia Ortega   +7 more
doaj   +1 more source

Microarray Analysis of Gene Expression in the Uterine Endometrium during the Implantation Period in Pigs [PDF]

Asian-Australasian Journal of Animal Sciences, 2012
During embryo implantation in pigs, the uterine endometrium undergoes dramatic morphological and functional changes accompanied with dynamic gene expression.
Mingoo Kim, Heewon Seo, Yohan Choi, Jangsoo Shim, Heebal Kim, Chang-Kyu Lee, Hakhyun Ka   +6 more
doaj   +1 more source

Origin and function of the yolk sac in primate embryogenesis. [PDF]

, 2020
Human embryogenesis is hallmarked by two phases of yolk sac development. The primate hypoblast gives rise to a transient primary yolk sac, which is rapidly superseded by a secondary yolk sac during gastrulation.

core   +4 more sources

Embryonic Folding

MedEdPORTAL, 2007
Introduction Embryology is a challenging subject to learn because it involves three-dimensional structures within the embryo that are constantly changing as development proceeds. This animated module depicts embryonic folding, in which the flat embryonic
Donald Lowrie, Adam Schirmer, Karen Marsh   +2 more
doaj   +1 more source

Oncopeltus fasciatus zen is essential for serosal tissue function in katatrepsis [PDF]

, 2006
Unlike most Hox cluster genes, with their canonical role in anterior–posterior patterning of the embryo, the Hox3 orthologue of insects has diverged. Here, we investigate the zen orthologue in Oncopeltus fasciatus (Hemiptera:Heteroptera).
Akam, Michael, Kaufman, Thomas C., Liu, Paul Z., Panfilio, Kristen A.   +3 more
core   +1 more source

Epiblast-specific Snai1 deletion results in embryonic lethality due to multiple vascular defects

BMC Research Notes, 2009
Background Members of the Snail gene family, which encode zinc finger proteins that function as transcriptional repressors, play essential roles during embryonic development in vertebrates.
Gridley Thomas, Starling Christa, Lomelí Hilda   +2 more
doaj   +1 more source

Comparative placental morphology and function. [PDF]

, 1976
The distinction between histiotrophic nutrition (in which local macromolecules are chiefly responsible for the maintenance of the embryo) and hemotrophic nutrition (which results from a transfer of material between the maternal and fetal circulations) is
Beck F., F Beck, Gulamhusein A. P., Mossman H. W   +3 more
core   +2 more sources