Researchers have restored the ability to hear in deaf gerbils using implanted human stem cells, achieving what they call a first step in potentially overcoming some causes of hearing loss in people.
While more study is needed to ensure the technique is safe for humans, principal researcher Dr. Marcelo Rivolta of the University of Sheffield said the work shows that stem cells can indeed regenerate nerve cells needed for hearing.
"It is early days, but we believe this is a substantial step forward because what we have here is the proof of concept that we can use human stem cells derived from human embryonic stem cells to repair the ear," Rivolta said from Sheffield, England.
Stem cells restore hearing in deaf gerbils; human testing few years off: study