Human embryos

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Inm-5: Outcomes of Human Vitrified Embryos Transfer

The techniques of cryopreservation let embryos which cannot be immediately transferred to the patient be stored for future use. The first successful pregnancy after transfer of cryopreserved human embryos was described in 1983 by Trounson et al. and the first birth after cryopreservation was later reported in 1984 by Zeilmaker et al.). The technique has rapidly been applied in most in-vitro fer...

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Atlas of Human Embryos

This atlas presents cross-sectional anatomy of human embryos from the first to eighth weeks of life, the time period when most structural relationships are made and most major teratologic changes will have occurred. It is an area of embryology that is not readily accessible from an illustrative standpoint. This volume is an excellent attempt to correct this deficiency. The method of presentatio...

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developmental potential of human fragmented embryos

introduction: the aim of this investigation was to study the developmental potential of human fragmented embryos to blastocyst stage and to evaluate thedeveloped blastocysts in the term of size, cellularity, the type of inner cell mass(icm), trophoetoderm (te) and the number of dead cells. material and methods: four to eight cell fragmented human embryos wereobtained from the embryology lab of ...

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Chromosome abnormalities in human embryos.

The presence of numerical chromosome abnormalities in human embryos was studied using fluorescence in-situ hybridization with four or more chromosome-specific probes. When most cells of an embryo are analysed, this technique allows differentiation to be made between aneuploidy, mosaicism, haploidy and polyploidy. Abnormal types of fertilization, such as unipronucleated, tripronucleated zygotes ...

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Treatment-related chromosome abnormalities in human embryos.

Mosaicism was studied in good quality embryos from four different centres in order to assess the effects of follicular induction and exposure to laboratory conditions on chromosomal status. The donated embryos were fully biopsied and analysed by fluorescence in-situ hybridization using probes for chromosomes X, Y, 13, 18 and 21, simultaneously. The number of abnormal cells present indicated the...

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ژورنال

عنوان ژورنال: Nature

سال: 1985

ISSN: 0028-0836,1476-4687

DOI: 10.1038/313524e0