Once removed from the blastocyst they lack the outer trophoblast ... be "nudged" into becoming any cell type found in the human body. These are the cells that Thomson used in his research.

"During this critical time window, extra sperm can intrude into the blastocyst. This might be ... may also have far-reaching ...

A greater insight into the molecular basis of blastocyst competency for implantation might help to improve pregnancy rates in human IVF programs. Implications for human fertility. From the results ...

Early zygote and blastocyst donations from patients of IVF clinics have helped shed light on this black box period of development, but human embryos are a limited resource and ethical concerns ...

Furthermore, if cells are recovered from a human donor who will also later receive ... test for pluripotency is known as the tetraploid blastocyst complementation assay. The method involves ...