Scientists find hearing loss gene
Editor: Efforts to understand hearing loss, with an eye towards
reversing it, continue in research centers throughout the world. This
notice from the University of Michigan addresses one recent discovery.
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March 2009
A new type of hearing loss and the gene causing it have been identified
by an international team of scientists. The discovery makes it possible to
be screened for this specific type of hearing loss.
SLC17A8 is the designation for the gene associated with the newly
identified type of hearing loss. The discovery was made by scientists from
the United States, Germany and France. It opens new possibilities for
individuals as well as science.
The SLC17A8 gene causes a previously unidentified kind of congenital
hearing loss, characterized by diminished ability to hear high frequency
sounds. The degree of hearing loss and at what age it appears vary from
one individual to the next, according to one of the researchers behind the
discovery, Marci Lesperance of the University of Michigan Health Systems.
Gene test possible
One direct result of the discovery is that a simple screening for the
gene can identify a disposition to the specific type of hearing loss
associated with SLC17A8.
Whether or not you seek such a screening, Lesperance urged all people
with hearing impaired relatives to be careful about and aware of
potentially heightened risks to their hearing. They should go for frequent
hearing screenings, she stated, and they should avoid exposure to smoking,
excessive noise and other known hearing loss risk factors.
New knowledge about age related hearing loss
Lesperance and her co-researchers expect to gain new knowledge about
age related hearing loss (presbyacusis) because of their gene discovery.
The newly discovered form of hearing loss is very similar to presbyacusis,
except that it occurs earlier in life. The scientists hope that further
investigation into the hearing loss gene will provide answers to questions
about the causes of age related hearing loss.