Featured Research

from universities, journals, and other organizations

U.S. Navy Medical Breakthrough To Help Millions Of Americans At Risk For Noise-Induced Hearing Loss

Date:
August 6, 1998
Source:
Office Of Naval Research
Summary:
In a medical breakthrough that will help tens of millions of Americans at risk for noise-induced hearing loss, the Naval Medical Center in San Diego has successfully tested a technique that restores hearing loss if administered within hours following exposure to loud noise. It can also "inoculate" users against hearing loss if taken before such exposure.

In a medical breakthrough that will help tens of millions of Americans at riskfor noise-induced hearing loss, the Naval Medical Center in San Diego hassuccessfully tested a technique that restores hearing loss if administeredwithin hours following exposure to loud noise. It can also "inoculate" usersagainst hearing loss if taken before such exposure.

Related Articles


The technique uses micro-devices or micro-catheters inserted in the earto deliver antioxidant pharmaceuticals that protect the hypersensitive haircells within the ear that are fundamental to sound detection. Thesepharmaceuticals have already been approved by the FDA for other applications; itis anticipated that the antioxidants will be on the fast track for approval forthe clinical trials using human subject of this research.

Although the ear can tolerate an amazing range of sound intensities, aday of 85 dB noise, the equivalent of standing behind a gas lawn mower, canbegin to damage the cochlea. Damage rapidly escalates with sound levelexposures to 120 dB sound pressure level, the equivalent of standing in front ofthe speakers at a rock concert. At around 130 dB sound pressure level,mechanical destruction of the inner ear begins. Excessive noise initiallydamages the inner ear by generating toxic oxygen-containing compounds thatdamage nerve endings and hair cells by chemical means. Although damage beginssoon after noise exposure, actual hair cell loss does not begin for four to fivedays and progresses over the next 40 days. This presents a window ofopportunity in which damaged hair cells may be rescued through theadministration of antioxidant pharmaceuticals.

"The techniques have already been used to treat hearing loss andMeniere's diseases, and have significant implications for treating other hearingand balance disorders in the military and civilian population," saysco-principal investigator, Dr. Richard D. Kopke, Colonel, Army Medical Corps. Sponsored by the Office of Naval Research and the U.S. Navy Bureau ofMedicine and Surgery, this research addresses issues of critical concern to theUnited States military.

FACTS:

  • The military spends more than $1.5 billion in compensation, re-training,and equipment replacement each year due to hearing and balance disorders,

  • More than 11 percent of individuals in the military are affected bythese disorders,

  • Deafness affects 30 million Americans and costs the nation $56 billionper year,

  • An additional 40 million individuals work in environments that pose asignificant threat to their hearing,

  • 50 percent of individuals suffer a balance disorder at some point duringtheir lifetime.

To further address hearing and balance problems that affect military andcivilian personnel, the Defense Spatial Orientation Center (DSOC) wasestablished. Dr. Michael Hoffer, Lieutenant Commander, Navy Medical Corps,co-principal investigator with Dr. Kopke, explains that the group is "unique inthat it brings together investigators from a number of different centers" tobring medical treatment directly to where military personnel work.


Story Source:

The above story is based on materials provided by Office Of Naval Research. Note: Materials may be edited for content and length.


Cite This Page:

Office Of Naval Research. "U.S. Navy Medical Breakthrough To Help Millions Of Americans At Risk For Noise-Induced Hearing Loss." ScienceDaily. ScienceDaily, 6 August 1998. <www.sciencedaily.com/releases/1998/08/980806090209.htm>.
Office Of Naval Research. (1998, August 6). U.S. Navy Medical Breakthrough To Help Millions Of Americans At Risk For Noise-Induced Hearing Loss. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/1998/08/980806090209.htm
Office Of Naval Research. "U.S. Navy Medical Breakthrough To Help Millions Of Americans At Risk For Noise-Induced Hearing Loss." ScienceDaily. www.sciencedaily.com/releases/1998/08/980806090209.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins