UK medics lead Europe's first embryonic stem cell trial

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Doctors at Moorfields Eye hospital in London have been given the go-ahead to carry out Europe's first clinical trial using human embryonic stem cells.

They will inject retinal cells into the eyes of 12 patients with an incurable disease, Stargardt's macular dystrophy, which causes progressive sight loss.

The disease develops in childhood and affects around one in 10,000 people.

Fergus Walsh reports.

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