Results 171 to 180 of about 15,306 (209)
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Trophectoderm cell subpopulations in the periimplantation mouse blastocyst
Journal of Experimental Zoology, 1984AbstractTrophectoderm of the preimplantation mouse blastocyst is composed of two cell subpopulations relative to their proximity to the inner cell mass. The polar trophectoderm overlying the inner cell mass proliferates to form the ectoplacental cone, and the mural trophectoderm endoreplicates and gives rise to giant cells.
D J, Chávez, A C, Enders, S, Schlafke
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Mosaicism between trophectoderm and inner cell mass
Fertility and Sterility, 2017Defining the actual incidence and prevalence of mosaicism in human blastocysts still remains a difficult task. The small amount of evidence generated by animal and human studies does not support the existence of mechanisms involved in developmental arrest, clonal depletion, or aneuploidy rescue for abnormal cells in euploid/aneuploid embryos during ...
Antonio Capalbo, Laura Rienzi
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Radioiodinated surface proteins of rabbit trophectoderm cells
Cell And Tissue Research, 1986We have previously used surface iodination to discriminate between the protein patterns of epithelial cell surfaces in uteri of rabbits receptive (Day 6.5) or nonreceptive (Day 4) to nidation (Ricketts et al. 1984). In this paper, we describe application of the same technique to the trophoblastic surface of rabbit blastocysts collected on the same days
A P, Ricketts, D W, Scott, D W, Bullock
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Development, 1979
ABSTRACT Selective labelling of polar trophectoderm cells in early mouse blastocysts has allowed the fate of polar cells to be followed during in vitro and in vivo blastocyst development. Results show that there is cell movement from polar to mural regions as blastocysts grow. This indicates that trophectoderm cells directly opposite the
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ABSTRACT Selective labelling of polar trophectoderm cells in early mouse blastocysts has allowed the fate of polar cells to be followed during in vitro and in vivo blastocyst development. Results show that there is cell movement from polar to mural regions as blastocysts grow. This indicates that trophectoderm cells directly opposite the
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Human trophectoderm biopsy and secretion of chorionic gonadotrohin
Human Reproduction, 1991We have previously developed a technique of trophectoderm biopsy to obtain cells from human blastocysts for preimplantation genetic diagnosis. To determine whether this technique affects the subsequent development of the blastocyst, 45 manipulated blastocysts were observed from days 3 to 14 in culture, the amount of human chorionic gonadotrophin (HCG ...
A, Dokras +3 more
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Automatic Segmentation of Trophectoderm in Microscopic Images of Human Blastocysts
IEEE Transactions on Biomedical Engineering, 2015Accurate assessment of embryos viability is an extremely important task in the optimization of in vitro fertilization treatment outcome. One of the common ways of assessing the quality of a human embryo is grading it on its fifth day of development based on morphological quality of its three main components (Trophectoderm, Inner Cell Mass, and the ...
Amarjot Singh +3 more
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Nature Cell Biology
The first embryonic cell differentiation in mice segregates the trophectoderm and the inner cell mass. Successful derivation of mouse trophoblast stem cells (TSCs) and trophectoderm stem cells (TESCs) has greatly facilitated the understanding of trophoblast differentiation.
Yake Gao +12 more
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The first embryonic cell differentiation in mice segregates the trophectoderm and the inner cell mass. Successful derivation of mouse trophoblast stem cells (TSCs) and trophectoderm stem cells (TESCs) has greatly facilitated the understanding of trophoblast differentiation.
Yake Gao +12 more
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Pregnancy after trophectoderm biopsy of frozen–thawed blastocyst
Fertility and Sterility, 2008To report a case of a successful pregnancy after trophectoderm biopsy and three-probe fluorescent in situ hybridization of a frozen blastocyst.Techniques and instrumentation.A University Medical Center.Infertility patient desiring trophectoderm biopsy on frozen blastocyst for preimplantation testing, from an IVF cycle at a referring IVF program.Frozen ...
Ruth Bunker, Lathi, Barry, Behr
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In Vitro Attachment and Outgrowth of Mouse Trophectoderm
1981Implantation of a mammalian embryo into the uterine lining is a morphodynamic process that is accompanied by marked changes in cellular architecture and subcellular organization. In order to determine the extent to which such changes are mandated by factors external to the embryo, we have examined surface and intracellular changes in fine structure ...
Daniel J. Chaváz, Jonathan Van Blerkom
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Differentiation of ICM cells into trophectoderm.
The American journal of pathology, 1988It has been established previously that when inserted in the blastocyst E Ca 247 preferentially differentiates into trophectoderm in vitro. If the concept that tumors are caricatures of the process of tissue renewal is correct, then some cells from the inner cell mass (ICM), the normal counterpart of embryonal carcinoma, should be able to differentiate
G B, Pierce +3 more
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