Now Hear This: Deaf gerbils ’hear again’ after stem cell cure
2012 09 14

By James Gallagher | BBCNews

UK researchers say they have taken a huge step forward in treating deafness after stem cells were used to restore hearing in animals for the first time.

Hearing partially improved when nerves in the ear, which pass sounds into the brain, were rebuilt in gerbils - a UK study in the journal Nature reports.

Getting the same improvement in people would be a shift from being unable to hear traffic to hearing a conversation.

However, treating humans is still a distant prospect.

If you want to listen to the radio or have a chat with a friend your ear has to convert sound waves in the air into electrical signals which the brain will understand.

This happens deep inside the inner ear where vibrations move tiny hairs and this movement creates an electrical signal.

However, in about one in 10 people with profound hearing loss, nerve cells which should pick up the signal are damaged. It is like dropping the baton after the first leg of a relay race.

The aim of researchers at the University of Sheffield was to replace those baton-dropping nerve cells, called spiral ganglion neurons, with new ones.

[...]

Analysis: A hairy problem

While there is excitement at the prospect of using stem cells to restore nerves in the ear this exact technique will not help the vast, vast majority of people with hearing loss.

Most hearing problems are caused by damage to the tiny delicate hairs which convert mechanical vibrations into electricity.

This research group have also converted embryonic stem cells into the early versions of the hair cells.

However, injecting them into the ear to restore hearing will be no easy task.

The hairs cells all need to be in the exact place and pointing in exactly the right direction.

Prof Dave Moore said using stem cells to repair the hairs was "almost an impossible task" and that the far-fetched concept of growing and transplanting a replacement ear seemed more likely.


[...]


Read the full article at: bbc.co.uk






Related Articles


Latest News from our Front Page

Why Can’t We Publish Addresses Of New York Times Reporters?
2014 11 28
New York Times reporters Julie Bosman and Campbell Robertson published the address of Darren Wilson in the New York Times so here are their addresses. GotNews.com strenuously objects to publishing the addresses of individuals who are being targeted with death threats. GotNews.com published the address of Ebola patient Nina Pham so that people could avoid going to her Dallas apartment. But it would ...
Terrorists? Interview with Varg Vikernes and Marie Cachet
2014 11 28
Marie Cachet and Varg Vikernes are what we call commonly ordinary people. However, for motives meanly political, the Ministry of the Interior decided to abuse its power to damage them ; "there is nothing more annoying than a low man placed in high position." (Roman saying) Today, Varg risks the eviction of the French territory without valid ground. Three very ...
The Coudenhove-Kalergi Plan - The Genocide Of The People Of Europe
2014 11 28
Mass immigration is a phenomenon, the causes of which are still cleverly concealed by the system, and the multicultural propaganda is trying to falsely portray it as inevitable. With this article we intend to prove once and for all, that this is not a spontaneous phenomenon. What they want to present as an inevitable outcome of modern life, is actually ...
Starbucks Supports Pro-GMO Company
2014 11 26
Another reason why you should not go to Starbucks. Starbucks has an image of being a socially responsible, environmentally friendly company (Really?). In 2013, 95 percent of their coffee was ethically sourced, and their goal is to reach 100 percent by 2015.1 Other goals include reducing water consumption by 25 percent in their company-operated stores by 20152 and mobilizing their employees and ...
Group Polarization and the Fad of Ethno-masochism
2014 11 26
From "Group polarization: A critical review and meta-analysis". Journal of Personality and Social Psychology. 6 50 (6): 1141--1151 The psychology of White self hatred. Political correctness IS a mental disorder. More: Group polarization: A critical review and meta-analysis. Isenberg, Daniel J. the paper Indoctrinate U Harvard Professor Noel Ignatiev talks about how to end the White race The History of Political Correctness The Narrative: The origins of Political ...
More News »