Embryo developmental potential of microsurgically corrected human three-pronuclear zygotes
نویسندگان
چکیده
منابع مشابه
Quantitative morphometrical characterization of human pronuclear zygotes.
BACKGROUND Identification of embryos with high implantation potential remains a challenge in in vitro fertilization (IVF). Subjective pronuclear (PN) zygote scoring systems have been developed for that purpose. The aim of this work was to provide a software tool that enables objective measuring of morphological characteristics of the human PN zygote. METHODS A computer program was created to ...
متن کاملIntegrity rate of pronuclei after cryopreservation of pronuclear-zygotes as a criteria for subsequent embryo development and pregnancy.
BACKGROUND The aim of this study was to examine whether the integrity rate of pronuclei, after cryopreservation of pronuclear zygotes, could be a predictor of future embryo development and implantation. METHODS Two-pronuclei stage zygotes (n = 862) were cryopreserved by aseptic rapid freezing in 15% ethylene glycol + 15% DMSO + 0.2 M sucrose with a 4-step exposure in 12% (v:v), 25, 50 and 100...
متن کاملMorphological scoring of human pronuclear zygotes for prediction of pregnancy outcome.
BACKGROUND As embryo selection is not allowed by law in Switzerland, we need a single early scoring system to identify zygotes with high implantation potential and to select zygotes for fresh transfer or cryopreservation. The underlying aim is to maximize the cumulated pregnancy rate while limiting the number of multiple pregnancies. METHODS In all, 613 fresh and 617 frozen-thawed zygotes wer...
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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 ...
متن کاملEfficient reproduction of cynomolgus monkey using pronuclear embryo transfer technique.
One of the technical bottlenecks in producing nonhuman primate models is that current assisted reproductive techniques, such as in vitro culture and frozen conservation of multicell-stage embryos, often result in poor embryo quality and subsequently lead to low birth rates. We investigated whether pronuclear embryo transfer can be used as an effective means for improving pregnancy and live birt...
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ژورنال
عنوان ژورنال: Systems Biology in Reproductive Medicine
سال: 2014
ISSN: 1939-6368,1939-6376
DOI: 10.3109/19396368.2014.986693