Sperm bring more than DNA to the party. They also pick up RNA on their way through the epididymis, a duct situated between the testis and the vas deferens. This RNA, it turns out, influences gene ...

A recent Nature study evaluates post-implantation development in humans using embryo-like models based on genetically unmodified human naïve embryonic stem cells (ESCs). Study: Complete human day 14 ...

Around eight days after fertilization, the human embryo implants in the endometrium (the tissue that lines the uterus). After implantation, it enters a developmental phase that is not well understood ...

The study revealed that two genes, HOXA10 and TWIST2, regulate embryo implantation by opening or closing a small "gate" in the uterine wall at the right time ...

The use of assisted reproductive technologies like in vitro fertilization is becoming more common worldwide. However, while these technologies successfully create viable embryos, a little over half of ...

The external uterus permits embryo implantation and embryogenesis. The process of implantation and embryo development was replicated on the external uterus. Osaka, Japan – The use of assisted ...

Assisted reproductive technology (ART) stands at the forefront of fertility care, yet the embryo transfer (ET) stage remains ...

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 ...

Although scientists know a lot about the process of human embryo implantation, it had never been recorded in real time, until now. Now that investigators can observe it in action, they may be able to ...

New information is unfolding on the genetic controls of an early turning point in pregnancy -- the changes in an embryo's cells that occur as it prepares to lodge in the wall of the uterus.

A team of scientists has just gotten a closer peek into one of the earliest and most fundamental steps of creating a human life. Research out today highlights how they captured—for the first ...