the main tie of current ES cell research involves a more limited approach to such cloning—not to produce babies but for eventual use as a source in clinical procedures using tailored ES cells (t ...

In contrast, the efficiency of cloning is significantly improved when embryonic stem (ES) cells are used as karyoplasts, especially after postimplantation stages 5. Blastocysts derived from ...

The cloning of embryos for generating stem cells, a process that holds promise for the future treatment of deadly diseases such as diabetes and Parkinson's, is delicate yet straightforward.

Therapeutic cloning, also known as embryo cloning or somatic cell nuclear transfer (SCNT), involves creating embryonic stem cells that are genetically identical to the donor. The goal of therapeutic ...

For the first time, Oregon State researchers in the US have used cloning techniques to create human embryonic stem cells that could offer hope for conditions such as Parkinson's disease ...

George Daley of Children's Hospital Boston answers viewer questions about stem cell research.

Embryonic stem cells can differentiate into a wider range of cell types, but are difficult to obtain and their use raises ethical challenges. The best source is the five-day-old embryo.

One of the creators of the world's first cloned mammal, Dolly the sheep, has died at the age of 79. Prof Sir Ian Wilmut's work, at the Roslin Institute in Edinburgh, laid the foundations for stem ...