preimplantation embryo

pre·im·plan·ta·tion em·bry·o

(prē-implan-tāshŭn embrē-ō)
Implantation begins on the seventh day after fertilization; preimplantation is from day 1 to day 6; some clinicians and lawyers use the term "pre-embryo" for this period, implying that the embryo has not formed.
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References in periodicals archive ?
Role of epidermal growth factor in bovine oocyte maturation and preimplantation embryo development in vitro.
PGD of embryos, on the other hand, is carried out by analysing a randomly extracted embryonic cell for genetic defects, with the assumption that all cells within a preimplantation embryo are identical and that the removal of a single embryonic cell would not affect the overall development of the embryo after implantation.
Citation: Kevin Huang et ah; "The Naive State of Human Pluripotent Stem Cells: A Synthesis of Stem Cell and Preimplantation Embryo Transcriptome Analyses"; Cell Stem Cell, 2014; 15 (4): 410 DOI: 10.
Obstetrics and gynecology, reproductive medicine, and other specialists from Europe, North America, Australia, and Japan describe how these media and solutions have been developed for in vitro human preimplantation embryo development, the function and importance of various components in them, and how systems and equipment in which the media and solutions are used can influence outcomes.
Our primary research objective is to unravel the molecular nature of human preimplantation embryo development and endometrial maturation.
Preimplantation embryo loss during oviduct transit has been observed in adult mice after a 5-day neonatal exposure to the phytoestrogen genistein.
Ruta graveolens aqueous extract retards mouse preimplantation embryo development.
This is supported by the study using milder ovarian stimulation for IVF that reduces aneuploidy rate in the human preimplantation embryo (6).
Biological factors in culture media affecting in vitro fertilization, preimplantation embryo development, and implantation.