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Stem cells help deaf gerbils hear
Could stem cell treatments one day replace hearing aids? Research is still preliminary.
September 12th, 2012
01:01 PM ET

Stem cells help deaf gerbils hear

About 37 million Americans have some level of hearing problem, and science hasn't come up with a perfect solution to restore this valuable sense.

Help may be on the way, at least in theory. A team of researchers reports in the journal Nature that they have used embryonic stem cells to restore some hearing in impaired gerbils. But more investigation is necessary before the technology can move to humans.

Background

Everyone has two main sensory cell types associated with hearing: the hair cell and the auditory neuron. Hair cells take sound and make it into an electrical signal. Neurons pick up the signal and transfer it to the brain, so you know what you're hearing.

Most deafness is caused by a problem in one or both of these cells, said Marcelo Rivolta, senior author of the study and stem cell biologist at the University of Sheffield, United Kingdom. The cells are usually created during the embryonic stage of development.

FULL POST


Bride's vows: 'In fitness and in health'
Adrienne LaGier and her husband, Chris, after their wedding -- two weeks before the Malibu triathlon.
September 12th, 2012
07:10 AM ET

Bride's vows: 'In fitness and in health'

Editor's note: Adrienne LaGier is one of seven CNN viewers training for the Nautica Malibu Triathlon with CNN's Dr. Sanjay Gupta. In the week leading up to the triathlon, each of the "Lucky 7" is sharing his or her thoughts on the journey.

In my application video, I told CNN that the biggest gift I could give to my husband Chris was to start our married life off in “fitness and in health."  My teammate, Nancy, so kindly captured those words in a handcrafted wedding gift to us that will forever serve as a symbol of this promise.

This journey has definitely given us that gift. We danced to every song the night of our wedding without leaving the dance floor once.

We thank CNN for making that a reality -– along with making my teammate Glenn’s journey to be the officiant at our wedding possible after he got stranded due to Hurricane Isaac.

Never in a million years did I think I would spend my honeymoon competing in a triathlon. FULL POST


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About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.

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