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The Boston Globe

Science

Boston scientists take step in growing cells for hearing

Boston researchers have for the first time used a drug to regenerate the delicate hair cells that sense sound in the ears of adult mice, in a promising initial step toward a potential treatment for hearing loss.

Hair cells damaged by loud noises or lost during aging don’t regrow in people, but in the mouse experiments published on Wednesday, the scientists coaxed new cells to develop, enabling the animals to recover modest hearing.

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