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Ear cells 'could restore hearing'

Sunday, 25 March, 2001, 23:11 GMT 00:11 UK - Scientists have engineered ear
cells that could be transplanted into humans to arrest hearing loss or even
regenerate long-lost hearing.

The work has been carried out by Professor Matthew Holley, of the
University of Bristol.

He envisages the cells working in tandem with inner ear implants to restore
hearing by promoting nerve regeneration.

Professor Holley will unveil his work at a conference on Genetics and
Deafness organised by the charity Defeating Deafness and the UK Council on
Deafness in London on Monday.

He said: "Cochlear implants, small devices which stimulate the auditory
nerve, work very well in a limited way.

"But they cannot be given to long-term deaf people because their auditory
nerves have degenerated too far.

"Replacement nerve cells could improve the electrical contact between the
implant and the brain.

"This opens up the prospect of making implants more effective and using
them on a much wider scale.

"We may be in a position to make these advances in three to five years' time."

A spokesperson for the Royal National Institute for Deaf People (RNID)
said: "Currently, not all deaf people can benefit from a cochlear implant.
Professor Holley's work on nerve regeneration may broaden this scope.

"RNID welcomes any progress which may open up the possibility of benefiting
from a cochlear implant to those deaf people who would wish to have one.

"We look forward to studying the results of the research."

However, Stephen Rooney, of the British Deaf Association, said researchers
were wrong to see deafness simply as something that should be cured.

"Deaf people are proud of their culture, history and language. They are not
looking for a 'cure', but for equality and acceptance."

Related to this story:
Children missing out on ear implants (04 Aug 00 | Health)
Hearing tests for all newborns (28 Jun 00 | Health)
Hi-tech hearing aids free on NHS (18 Jan 00 | Health)

Internet links:
UK Council on Deafness
Defeating Deafness
Royal National Institute for Deaf People
British Deaf Association

BBC News Online: Health
http://news.bbc.co.uk/low/english/health/newsid_1235000/1235606.stm

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