Scientists from Britain and Japan shared a Nobel prize yesterday for the discovery that adult cells can be transformed back into embryo-like stem cells that may one day regrow tissue in damaged brains, hearts or other organs.

British researcher John Gurdon and Shinya Yamanaka of Japan have won this year’s Nobel Prize in medicine or physiology.

I WISH to comment on the booklet from the Irish Council on Bioethics on stem cells and Dr Stephen Sullivan’s analysis (April 25).

A NEW technique that creates human stem cells from fragments of skin could end the controversial use of human embryos to harvest stem cells, according to an Irish expert in human stem cell research.