Preimplantation embryo: the first physical exam
نویسندگان
چکیده
منابع مشابه
preimplantation mouse embryo
The role of membrane sterols in the compaction and subsequent development of the preimplantation mouse embryo was studied by incubating embryos in 7-ketocholesterol and other oxygenated sterols. These sterols have been shown to inhibit sterol synthesis and deplete membranes of cholesterol in a variety of other cell types. Compaction and subsequent blastocyst formation were normal when embryos w...
متن کاملGetting Physical: The Hypothesis Driven Physical Exam.
DOI: 10.1542/peds.2015-4511 Accepted for publication Dec 14, 2015 Address correspondence to Michael A. Barone, MD, MPH, Johns Hopkins University School of Medicine, Charlotte Bloomberg Children’s Hospital, 1800 Orleans St, Suite 8442, Baltimore, MD 21287. E-mail: [email protected] PEDIATRICS (ISSN Numbers: Print, 0031-4005; Online, 10984275). Copyright © 2016 by the American Academy of Pediatric...
متن کاملDNA synthesis in the preimplantation mouse embryo.
Strain PO preimplantation embryos were labelled with [H]thymidine. The incorporation of the label was studied by autoradiography of air-dried and serially sectioned embryos. DNA amounts were measured with a microdensitometer. The following observations were made at the 5to 16-cell stages. All nuclei contained 2C-4C amounts of DNA and all could eventually synthesize DNA. However, after short lab...
متن کاملLineage specification in the mouse preimplantation embryo.
During mouse preimplantation embryo development, totipotent blastomeres generate the first three cell lineages of the embryo: trophectoderm, epiblast and primitive endoderm. In recent years, studies have shown that this process appears to be regulated by differences in cell-cell interactions, gene expression and the microenvironment of individual cells, rather than the active partitioning of ma...
متن کاملGene expression in the mouse preimplantation embryo.
Mouse preimplantation development represents a tightly controlled programme of gene expression and cell division, which starts with the fertilized egg and ends with implantation of the blastocyst approximately 4.5 days later. Spatial and temporal differences in gene expression underpin establishment of axes at the two-cell stage and development of the trophectoderm and inner cell mass after emb...
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ژورنال
عنوان ژورنال: F&S Science
سال: 2021
ISSN: 2666-335X
DOI: 10.1016/j.xfss.2021.01.006