Freezing medium: 90% fetal calf serum, 10% DMSO (sterilized, 0.22-μm filter) HSF-6 freezing medium: 90% fetal bovine serum (heat-inactivated; HyClone), 10% DMSO (sterilized, 0.22-μm filter) 2% ...

Jacob Hanna, a stem cell biologist at the Weizmann Institute of Science, wanted to know why this transition occurs. To answer this question, Hanna and his team set out to develop an ex utero embryo ...

Scientists are seeking permission to generate human embryonic stem cells to study disease by introducing human genetic material into an animal oocyte. This has raised ethical questions that centre ...

In the mouse developing embryo, she previously demonstrated a bias at the two-cell stage: one cell contributed more to fetal tissue and the other to the placenta. 4 “We know so little about the very ...

Learn more about the National Academies’ various programs designed to connect, engage, and inspire. In 2005, the National Academies released the book, Guidelines for Human Embryonic Stem Cell Research ...

For the first time, Oregon State researchers in the US have used cloning techniques to create human embryonic stem cells that could offer hope for conditions such as Parkinson's disease ...

which would allow regulated research using hybrid or 'admix' embryos, where the nuclei of human cells are inserted into animal eggs. The resulting embryos would be kept for up to 14 days to ...

Using plant stem cells is one thing. Using human stem cells in medicine is quite another. Scientists have found ways to grow embryonic stem cells in the lab, and are trying to use them to cure ...

Human embryo compaction, an essential step in the first days of an embryo's development, is driven by the contractility of its cells. This is the finding of a team of scientists from CNRS ...

Organoids and synthetic embryos mark a pivotal shift in biomedical research, highlighting the need for ethical oversight amid ...

Advanced Cell Technology Inc. of Worcester, Massachusetts, said the experiment was aimed not at creating a human being but at mining the embryo for stem cells used to treat disease. Stem cells are ...

Scientists have long dreamed of plucking those naive cells from a young human embryo and coaxing them to perform, in sterile isolation, the everyday miracle they perform in wombs: transforming ...