Basic Sciences

Download An atlas of human blastocysts by Lucinda L. Veeck, Nikica Zaninovic PDF

By Lucinda L. Veeck, Nikica Zaninovic

When you had a accountable strategy for choosing the healthiest and such a lot possible conceptus from a cohort of turning out to be preembryos, changing greater than a unmarried one which will in attaining solid being pregnant charges will be moot. someday within the not-so-distant destiny, this can be a truth. Taking a step in the direction of that destiny, An Atlas of Human Blastocysts vividly illustrates the common and strange morphology of mammalian blastocysts. The atlas demonstrates that prolonged tradition of blastocysts is now feasible within the laboratory and issues us towards the day whilst will probably be attainable to select from a few fit hatched blastocysts.

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Fertil Steril 1983; 39:594–602 21. Austin CR. The Mammalian Egg. Oxford: Blackwell Scientific Publications, 1961:75, 78 22. Plachot M, Crozet N. Fertilization abnormalities in human in-vitro fertilization. Hum Reprod 1992;7(Suppl 1):89–94 23. Gianaroli L, Cristina Magli M, Ferraretti AP, et al. Reducing the time of sperm-oocyte interaction in human in-vitro fertilization improves the implantation rate. Hum Reprod 1996; 11:166–71 24. Alberts B, Bray D, Lewis J, Raff M, Roberts K, Watson JD, eds.

3). Furthermore, the cumulus cells surrounding the oocyte, zygote and early cleavage stage embryo readily consume glucose and convert it to both pyruvate and lactate4,28. Subsequently the human embryo will be exposed to a declining pyruvate and lactate gradient, but an increasing glucose gradient, as it develops. Understanding the change in carbohydrate preference and utilization The change in carbohydrate utilization can be explained in terms of the changing physiology of the embryo as it develops.

Sathananthan AH, Trounson AO. Ultrastructure of cortical granule release and zona interaction in monospermic and polyspermic human ova fertilized in vitro. Gamete Res 1982; 6:225 40. Almeida PA, Bolton VN. The effect of temperature fluctuations on the cytoskeletal organisation and chromosomal constitution of the human oocyte. Zygote 1995; 3:357–65 41. Wright G, Wiker S, Elsner C, et al. Observations on the morphology of pronuclei and nucleoli in human zygotes and implications for cryopreservation.

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