Sentences with phrase «donating human embryos»

It also requires physicians treating infertility patients to provide these patients with information about donating human embryos after infertility treatment.

The researchers tested their technique on such cultivated stem cells of both a mature and immature type, and on donated human embryos left over from IVF treatments.

Not exact matches

Proponents of ESC research counter that most of the new cell lines could be derived from donated, unused human embryos created by couples seeking fertility treatment, and that more than a third of zygotes fail to implant after conception, so those would be lost by chance anyway.

Moore and Soygur studied 20 human embryos donated by women undergoing IVF.

If the cells can be fertilized and develop into viable embryos, and if human ES cells turn out to have similar powers, such cells could allow researchers to get around some of the expense and ethical questions that arise from using donated eggs for therapeutic cloning experiments.

Then a team in Japan reported success using a very different technique that did not require donated human eggs or the creation of embryos.

However, those stem cells, which were made from human embryos that had been donated for research after in vitro fertilization procedures, can be difficult to come by.

However, some consider human embryonic stem cell research controversial because, in some cases, the new stem cell lines are derived frozen human embryos that have been donated for research.