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Gene therapy improves ‘bionic ear’ technology

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A procedure that uses a series of electric jolts to inject lab-designed DNA molecules into cells of the inner ear may help to regrow auditory nerves in people with profound hearing loss, according to researchers.

In a paper published Wednesday in Science Translational Medicine, Australian researchers said they used tiny electrodes and gene therapy to regenerate nerve cells in chemically deafened guinea pigs.

The procedure, they said, may one day improve the functioning of human cochlear implants — electronic devices…

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