Submitted by Michael Frankfort @mfrank_76
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Researchers at the Weizmann Institute of Science have successfully created human embryo models from stem cells outside the uterus. These stem cell-derived embryos (SEMs) mimic 14-day-old embryos and include structures like the yolk sac, amniotic cavity, and placenta. This breakthrough allows scientists to study early embryonic development, genetics, and the effects of pharmaceuticals on embryos. The research, which builds on previous work with mouse SEMs, provides a model to explore critical early stages of pregnancy that are otherwise difficult to study. However, these SEMs cannot develop into full-term embryos.