Scientists have successfully modified mouse stem cells to produce sound sensitive ear cells which could help cure deafness caused by ageing, damage or disease. The research, published on 14th May 2010 in the journal Cell, involves regenerating the microscopic hair cells which turn sound vibrations into nerve signals and restore hearing (1).
We have 30,000 of these cells in each ear, but they deteriorate with age, reducing our sensitivity to both very high and low frequencies. Further damage may result from exposure to loud sounds, including music. Our sense of balance can also be upset by trauma to the middle ear, and tinnitus is a common problem afflicting around 12 million Americans (4.5% of the population).
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