As the blastocyst burrows, the trophectoderm begins to differentiate into subtypes of trophoblast cells, starting with cytotrophoblasts, which are progenitor stem cells in the placenta that give rise ...

IN 1949 I published a hypothesis suggesting that the cyto- and syncytio-trophoblast were derived from the granulosa cells that surround the egg when it leaves the ovary; the argument, however ...

After implantation, the trophectoderm starts reshaping the endometrium. A layer of cytotrophoblasts—trophoblast progenitor cells—emerges around the same time as the invading primitive syncytium. By 12 ...

I simultaneously completed my Ph. D. in Biomedical Sciences from Colorado State University studying early placental trophoblast development at the time of implantation in human embryos and stem ...