An international team of experts in embryology and bioethics has published the first white paper on the use of embryonic ...

A base editor rewrote a single DNA letter while editing human embryos, and every chromosome held even as mosaicism keeps a ...

Researchers at the Francis Crick Institute have developed a new stem cell model of the mature human amniotic sac, which replicates development of the tissues supporting the embryo from two to four ...

In the earliest hours after fertilization, an embryo takes its first steps toward becoming a living organism by shedding maternal control and activating its own genetic program. This critical process, ...

Chinese researchers sent artificial human embryo models into space to study how microgravity may affect early human development.

Stem cell-based embryo models offer unprecedented experimental tools for studying early human development. The usefulness of embryo models hinges on their molecular, cellular and structural fidelities ...

The quality of oocytes and early embryos is a key determinant of reproductive success. As the primary executors of all cellular functions, proteins orchestrate the molecular events underlying oocyte ...

An international team of scientists led from Sweden's Karolinska Institutet has for the first time mapped all the genes that are activated in the first few days of a fertilized human egg. The study, ...

"Guinea pigs can become a valuable model for understanding how early disturbances in embryonic development can affect health later in life. Since guinea pig development mirrors that of humans better ...