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Two women with untreatable eye diseases said they had dramatic improvements in their vision after injections of human embryonic stem cells, making it the first documented time these controversial cells have helped someone.

An injection of stem cells given alongside a kidney transplant could remove the need for a lifetime of drugs to suppress the immune system, say scientists.

Stem cell researchers create lung surface tissue in a dish

Surgeons in Sweden have carried out the world's first synthetic organ transplant.