Science, Space and Technology News 2024
Human embryo at the blastocyst stage ready to implant. The nuclear envelope of the cells appears in blue and the actin cytoskeleton in orange. Credit: Julie Firmin et Jean-Léon Maître
In human development, the compaction of embryonic cells is a vital process in the early stages of an embryo’s formation. Four days post-fertilization, the cells tighten together, helping to form the embryo’s initial structure. If compaction is flawed, it can hinder the development of the essential structure needed for the embryo to attach to the uterus. During assisted reproductive technology , this stage is meticulously observed before the embryo is implanted.
Human embryo at the 4-cell stage. Cell DNA appears in red and their actin cytoskeleton in blue. The cell on the right has just split its genome into two and is about to divide. Credit: Julie Firmin et Jean-Léon Maître
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