Whiskers growing minute ear brings hope for the deaf
Experience had been limited to lab animals and humans has proven to
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| Whiskers,ear,Stem cells,Multiple Sclerosis,Ms,Health,Medicine,Disease,الخلايا الجذعيه,الصحه,الطب,الامراض,التصلب المتعدد |
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scientists were able to restore hearing to lab rats after small hairs
growing in the ear after loss, injection drug type has to be reset
bristles minutes again within these authorized rats.
These mice may not prepare natural hearing, but the sounds made close door or street traffic.
Experts
believe that such an exciting experience, but remains limited to lab
animals and did not prove the validity of its application to humans.
To
hear the sounds waves must be transformed sounds into electrical
signals that the brain, and the first step in this process occurs in the
inner ear, causing vibrations to move IPL and create this movement
electric signal, and most hearing problems occur as a result of damage
in the IPL.
Researcher
Dr Albert told the edge that he "could not generate hair when cells of
mammals, but is, as proven for the first time the possibility of doing
so."
In this study,
conducted by the Harvard School of medicine for eye and ear, researchers
examined in ئران are fully designed and has no hair inside the ear.
Have been using sterile targets cells that support the hair person. This was not the property of cell density, and amended the genes used by the cells for transfer to hair cells.
Pictures have shown brain scans that the animals managed to hear some sounds.
Edge
said "there was some improvement though not great, these rats have
become able to hear high-frequency sounds as low as close the door or
street noise, but it is not heard".
In
an earlier study conducted last year, enabling researchers to use stem
cells to create links between the IPL and the brain, generating new
nerves, however, generate new whiskers presents a greater challenge.
And
Professor Dave Moore, Director of the Research Institute for hearing
benotingham to study the work inside the ear very precisely, so that any
action to restore hearing is like trying to remove and the 15-story
building downtown without changing any of the surrounding buildings
during an earthquake.
Moore
said "this really exciting developments, however, it must be handled
with caution with regard to the treatment of human beings," this study
is a first step, but there are many challenges to access to property
subject to normalization on sick people.
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