The first steps of human development—those that occur within the first few weeks of pregnancy—remain mysterious in many ways. Within a week of fertilization, human embryos form a blastocyst, which ...

The mechanisms that underlie early embryonic development in humans and cattle are very similar. Therefore, researchers argue that bovine embryos might well be a better model for early human ...

The embryo on the left is unedited, whereas the right has been edited to prevent it producing the OCT4 protein. The unedited embryo forms a stable structure called a 'blastocyst' but the edited embryo ...

Researchers have very limited opportunities to study the earliest stages of human development, but a groundbreaking discovery led by a team in Australia will now provide them with a valuable new model ...

For the first time, scientists edited a gene in fertilized human eggs critical to early development. The experiments helped the researchers learn about fundamental human biology in a way they could ...

With the increasing acceptance of blastocyst transfer technologies, more attention is being paid to the selection of ...

To better understand the earliest stages of human growth, researchers can examine donated embryos or human embryonic stem cells, both of which are in limited supply, or address their questions with ...

The embryos of many species can stop developing when starved of nutrients, only to restart the process once these are restored – and scientists may have figured out how they do it. In the early stages ...

The mechanisms that underlie early embryonic development in humans and cattle are very similar. Therefore, Ludwig-Maximilians-Universitaet (LMU) in Munich researchers argue that bovine embryos might ...