Results 171 to 180 of about 20,947 (214)
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2005
Experimental models of blastocyst development based on in vitro culture have played a prominent role in advancing our understanding of peri-implantation development, a process that is relatively inaccessible in vivo. Blastocyst culture provides a robust approach for examining embryonic interactions with the microenvironment under highly controlled ...
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Experimental models of blastocyst development based on in vitro culture have played a prominent role in advancing our understanding of peri-implantation development, a process that is relatively inaccessible in vivo. Blastocyst culture provides a robust approach for examining embryonic interactions with the microenvironment under highly controlled ...
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Biochemistry and Cell Biology, 1992
Several of the new reproductive technologies have been cultivated from our current understanding of the genetic programming and cellular processes that are involved in the major morphogenetic events of mammalian preimplantation development. Research directed at characterizing the patterns of gene expression during early development has shown that the ...
Watson, A J, Kidder, G M, Schultz, G A
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Several of the new reproductive technologies have been cultivated from our current understanding of the genetic programming and cellular processes that are involved in the major morphogenetic events of mammalian preimplantation development. Research directed at characterizing the patterns of gene expression during early development has shown that the ...
Watson, A J, Kidder, G M, Schultz, G A
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On the orientation of the implanting blastocyst
Development, 1967ABSTRACTThe sequence of events in the orientation of the blastocyst is described. Six a priori mechanisms for orientating the blastocyst are presented. It is concluded that the only mechanism fulfilling the available morphological and experimental observations is one in which the inner cell mass is free to travel round the inside of the trophoblast ...
D R, Kirby, D M, Potts, I B, Wilson
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Russian Journal of Developmental Biology, 2017
The human oocyte is surrounded by the zona pellucida—an elastic, transparent extracellular matrix consisting of specific glycoproteins. The zona pellucida is preserved after fertilization and surrounds the developing human embryo for a few days. The embryo needs to get out of the zona pellucida before implantation to establish cell contacts between the
R A, Shafei +5 more
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The human oocyte is surrounded by the zona pellucida—an elastic, transparent extracellular matrix consisting of specific glycoproteins. The zona pellucida is preserved after fertilization and surrounds the developing human embryo for a few days. The embryo needs to get out of the zona pellucida before implantation to establish cell contacts between the
R A, Shafei +5 more
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Prostaglandins in Rabbit Blastocysts
Science, 1975Rabbit blastocysts recovered at 144 hours post coitum contained the prostaglandins F and E-A. We suggest that one or more of these prostaglandins act as mediators in blastocyst steroidogenesis. (In another study we have demonstrated steroidogenesis in rabbit blastocysts).
Z, Dickmann, C H, Spilman
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The Marsupial Blastocyst - a Study of the Blastocysts in the Hill Collection
Australian Journal of Zoology, 1986Blastocysts in the Hill Collection from Trichosurus vulpecula, Pefrogale penicillata, Macropus ruficollis (= M. rufogriseus), Macropus parma, Onychogalea fraenata, Bettongia gaimardi, Perameles obesula (=lsoodon obesulus), Perameles nasuta, Dasyurus viverrinus, Didelphis aurita (=D. marsupialis) and Didelphis virginiana were examined.
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Parthenogenetic Mouse Blastocysts
Nature, 1970A READY supply of parthenogenetic mammalian embryos would be useful. Parthenogenones which develop from unfertilized eggs may be haploid, diploid or polyploid, depending on whether the meiotic divisions and first cleavage division occur1. Haploid cells can be used for studying cellular genetics and embryology.
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Mechanics of blastocyst morphogenesis
Biology of the Cell, 2017During pre‐implantation development, the mammalian zygote transforms into the blastocyst, the structure that will implant the embryo in the maternal uterus. Consisting of a squamous epithelium enveloping a fluid‐filled cavity and the inner cell mass, the blastocyst is sculpted by a succession of morphogenetic events.
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