Volume 17, Issue 3, on March 5, 2025, titled “Reproductive aging, preimplantation genetic testing for aneuploidy, and the ...

There are about 1,000 mitochondria in each cell of the blastocyst and about 10 per primordial germ cell as these are first specified in the early postimplantation embryo during gastrulation (when ...

Synchronizing preimplantation embryo development up to the blastocyst stage with uterine differentiation to the receptive state is an absolute requirement for successful implantation. Molecular ...

the young embryo "hatches" from this protective cover. "During this critical time window, extra sperm can intrude into the ...