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 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 کاملDiagnosis of human preimplantation embryo viability.
BACKGROUND Transfer of more than a single embryo in an IVF cycle comes with the finite possibility of a multiple gestation. Even a twin pregnancy confers significant risk to both mother and babies. The move to single-embryo transfer for all patients will be greatly facilitated by the ability to quantify embryo viability. Developments in time-lapse incubation systems have provided new insights i...
متن کاملMolecular Basis of Differential Gene Expression in Themouse Preimplantation Embryo
Preimplantation development of the mammalian embryo consists of stages that include formation of the <span style="font-variant: normal; font-style: normal; font-family: ArialM...
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ژورنال
عنوان ژورنال: Human Reproduction
سال: 1999
ISSN: 1460-2350,0268-1161
DOI: 10.1093/humrep/14.suppl_3.296