Results 51 to 60 of about 89,734 (288)

Trophectoderm biopsy for preimplantation genetic test and technical tips: A review

open access: yesReproductive Medicine and Biology, 2020
Background Recently, the Japan Society of Obstetrics and Gynecology initiated a clinical study of preimplantation genetic test for aneuploidy. There will be a great need for a standardized embryo biopsy technique in Japan.
Naoki Aoyama, Keiichi Kato
doaj   +1 more source

Blastomere movement post first cell division correlates with embryonic compaction and subsequent blastocyst formation

open access: yesReproductive Biology and Endocrinology, 2019
Background Blastomere movement (BMov) occurs after the first cell division in human embryos. This movement has been suggested as a prognostic parameter for pregnancy outcome prediction following cleavage-stage embryo transfer. However, the effect of BMov
Kazuki Ohata   +11 more
doaj   +1 more source

Cleavage stage versus blastocyst stage embryo transfer in assisted reproductive technology.

open access: yesCochrane Database of Systematic Reviews, 2016
BACKGROUND Advances in cell culture media have led to a shift in in vitro fertilisation (IVF) practice from cleavage stage embryo transfer to blastocyst stage transfer.
D. Glujovsky   +4 more
semanticscholar   +1 more source

Aneuploidy in the Human Blastocyst

open access: yesCytogenetic and Genome Research, 2011
Studies of human cleavage stage embryos, 3 days after fertilization of the oocyte, have revealed remarkably high levels of chromosome abnormality. In addition to meiotic errors derived from the gametes, principally the oocyte, mitotic errors occurring after fertilization are also common, leading to widespread chromosomal mosaicism.
Fragouli, E, Wells, D
openaire   +3 more sources

Embryonic POU5F1 is Required for Expanded Bovine Blastocyst Formation

open access: yesScientific Reports, 2018
POU5F1 is a transcription factor and master regulator of cell pluripotency with indispensable roles in early embryo development and cell lineage specification.
B. Daigneault   +3 more
semanticscholar   +1 more source

Regulation of blastocyst formation

open access: yesFrontiers in Bioscience, 2001
Preimplantation or pre-attachment development encompasses the "free"-living period of mammalian embryogenesis, which directs development of the zygote through to the blastocyst stage. Blastocyst formation is essential for implantation, establishment of pregnancy and is a principal determinant of embryo quality prior to embryo transfer.
Watson, A J, Barcroft, L C
openaire   +5 more sources

Which Blastocyst to Be Biopsied? - Blastocyst Stage and Quality

open access: yesFertility & Reproduction, 2023
This talk is an engaging format to address crucial aspects of selecting the most suitable blastocyst for biopsy to optimize the success of PGT procedures and successful pregnancies. The talk commences with an overview of various blastocyst stages and relevant morphological characteristics, elucidating the critical developmental milestones and key ...
openaire   +2 more sources

Traf4 is required for tight junction complex during mouse blastocyst formation

open access: yesJournal of Animal Reproduction and Biotechnology, 2021
Traf4 (Tumor necrosis factor Receptor Associated Factor 4) is a member of the tumor necrosis factor receptor (TNFR) - associated factors (TRAFs) family.
Jian Lee, Inchul Choi
doaj   +1 more source

Progesterone governs endometrial proliferation-differentiation switching and blastocyst implantation.

open access: yesEndocrine journal, 2019
Blastocyst implantation contains the following three processes: apposition, attachment, and invasion of the blastocyst. Ovarian hormone progesterone (P4) regulates these processes exquisitely.
Yasushi Hirota
semanticscholar   +1 more source

Quality of Blastocysts Created by Embryo Splitting: A Time-Lapse Monitoring and Chromosomal Aneuploidy Study

open access: yesCell Journal, 2020
Objective: The aim of this study was to screen the potential of human embryos to develop into expanding blastocysts following in vitro embryo splitting and then assess the quality of the generated blastocysts based on chromosomal characteristics and ...
Marjan Omidi   +4 more
doaj   +1 more source

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