For the first time, a stem cell model has produced a structure resembling an early human embryo with a yolk-sac-like structure, from a single starting stem cell population and without direct genetic ...

For the first time, a stem cell model has produced a structure resembling an early human embryo with a yolk-sac-like ...

The model demonstrates never-before-seen potential in human pluripotent stem cells Key takeawaysFor the first time, stem cells typically considered ...

(CNN) -- A human embryo, containing about a couple hundred cells, is smaller than the period at the end of a sentence. Scientists need strong microscopes to see these precursors to life, and to take ...

Shelby is an assistant editor for The Scientist. She earned her PhD from West Virginia University in immunology and microbiology and completed an AAAS Mass Media fellowship. View full profile. Learn ...

In science, ethical guidelines ensure that research takes place in a way that respects public trust and is conducted ...

Scientists at the University of California, Santa Cruz (UCSC), used CRISPR to engineer cellular models of embryos that mimic what happens in the first few days after reproductive cells meet. These ...

The International Society for Stem Cell Research (ISSCR) Embryo Models Working Group has released updated recommendations for the oversight and regulation of stem cell-based embryo models (SCBEM), ...

Ground-breaking research could transform understanding of early embryonic development, but raises ethical concerns. Although the cells used came from mice, the experiment has opened up a new frontier ...

Descriptions of the embryo go back at least to the time of Aristotle, but it has only been since the late 19 th century and early 20 th century that advances in experimental approaches allowed ...