Results 101 to 110 of about 15,306 (209)

Dissecting the role of the endoplasmic reticulum in trophectoderm development and blastocyst quality in yaks

open access: yesJournal of Dairy Science
: Yak (Bos grunniens) are a unique bovine species adapted to extremely harsh environmental conditions in high-altitude regions. Despite their crucial roles in animal industry, knowledge of yak reproduction and embryonic development remains severely ...
Lili Li   +7 more
doaj   +1 more source

Monoclonal antibodies as probes for the differentiation of the mouse trophectoderm

open access: yes, 1993
The aim of this study was to use monoclonal antibodies to identify and characterise antigens specific to the trophectoderm of the preimplantation mouse blastocyst and in this way to further describe the molecular features of the trophectoderm phenotye ...
Butler, Elizabeth Ann
core  

Junctional composition of the trophectoderm.

open access: yes
We measured total transcription in the inner cell mass (ICM) and the trophectoderm (TE) of the human embryo to understand the mechanisms underlying TE commitment. We describe here identification of genes located at cellular junctions with contributory functions as lineage commitment cooperating factors in embryonic stem cells of the human embryo.  
openaire   +2 more sources

Cell adhesion in the preimplantation mammalian embryo and its role in trophectoderm differentiation and blastocyst morphogenesis

open access: yes, 2001
Cell adhesion plays a critical role in the differentiation of the trophectoderm epithelium and the morphogenesis of the blastocyst. In the mouse embryo, E-cadherin mediated adhesion initiates at compaction at the 8-cell stage, regulated post ...
Fesenko, I., Fleming, T.P., Sheth, B.
core   +1 more source

Mean quantities (±SEM) of telomere DNA found in aneuploid relative to euploid polar bodies, blastomeres, and trophectoderm biopsies.

open access: yes, 2013
P-values from paired analysis of sibling samples within each patient are shown and illustrate the significant decrease in relative quantity in aneuploid polar bodies and blastomeres but not trophectoderm.
Deanne Taylor (348711)   +3 more
core   +1 more source

Complex aneuploidy triggers autophagy and p53-mediated apoptosis and impairs the second lineage segregation in human preimplantation embryos

open access: yeseLife
About 70% of human cleavage stage embryos show chromosomal mosaicism, falling to 20% in blastocysts. Chromosomally mosaic human blastocysts can implant and lead to healthy new-borns with normal karyotypes.
Marius Regin   +10 more
doaj   +1 more source

Investigating the roles of OCT4 and CDX2 in directing bovine trophectoderm lineage development [PDF]

open access: yes, 2010
Domestic animal embryo technologies would benefit from a better understanding of the molecular mechanisms that direct early embryonic development. Failure to establish a normal transcriptional regulatory program in the early trophectoderm of nuclear ...
Schiffmacher, Andrew Thomas
core   +1 more source

Apoptosis in rodent peri-implantation embryos: differential susceptibility of inner cell mass and trophectoderm cell lineages--a review.

open access: yes, 2000
Inner cell mass (ICM) and trophectoderm cell lineages diverge early in cleavage in response to a complex combination of cellular and molecular determinative events.
Pampfer, S.
core   +1 more source

Re-biopsy and modified biopsy in mosaic human embryos with simple segmental chromosomal deletion

open access: yesReproductive Biology and Endocrinology
Background There is a considerable proportion of false positive results when the result of preimplantation genetic testing for aneuploidy is chromosomal mosaicism.
Weizhou Wang   +7 more
doaj   +1 more source

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