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Two people with severe vision loss due to a degenerative eye disease are able to read after embryonic stem cell treatment, researchers said Monday.For the study, a British-American research team used human embryonic stem cells (hESC) to grow RPE cells on a thin plastic scaffold.Four years ago, researchers used embryonic stem cells to restore some vision in patients with a more common and less severe form of macular degeneration, the "dry" type.Other teams are testing so-called induced pluripotent stem cells, adult human cells that have been reprogrammed to a youthful, versatile state.
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