If it is attached, the blastocyst has started its journey toward becoming a fetus, and pregnancy is underway. People may experience cramps very early on in pregnancy. These are due to implantation ...

Around six to seven dpf, the blastocyst implants into the surface of the uterine wall and begins its expansion. 4 This area of the endometrium is transformed early on in pregnancy and acts as a fluffy ...

Stem cell-based embryo models, such as blastoids, serve as models of the blastocyst and are invaluable tools for studying embryogenesis and early human development. However, the variability in ...

involves injecting rat stem cells into mouse blastocysts—early-stage embryos lacking the ability to develop a pancreas due to genetic mutations. Subsequently, the rat stem cells differentiate ...