Navigation Links
Laser Screen Detects Diseases in Breath

Chemical molecules in exhalations hint at wide range of conditions

MONDAY, Feb. 25 (HealthDay News) -- A special technique that uses laser light to sample a person's breath can detect molecules that may be markers for a number of diseases, a U.S. study says.

This approach, called cavity-enhanced direct optical frequency comb spectroscopy, may one day help doctors screen patients for diseases such as asthma, cancer, kidney failure and diabetes, according to the team of scientists at JILA, a joint institute of the National Institute of Standards and Technology and the University of Colorado at Boulder.

"This technique can give a broad picture of many different molecules in the breath all at once," lead researcher Jun Ye said in a prepared statement.

Optical frequency comb spectroscopy was developed in the 1990s. This study describes the potential use of the technology in detecting disease.

Each breath exhaled by a person contains more than a thousand different molecules, some of which may be indicators of disease. For example, excess levels of methylamine may indicate liver or kidney disease, ammonia may be a sign of renal failure, elevated acetone levels may indicate diabetes, and nitric oxide levels can be used to diagnose asthma.

In this study, Ye and colleagues used the technique to analyze the breaths of several volunteers. They exhaled into an optical cavity (a space between two mirrors) and a pulsed laser light was then aimed into the optical cavity. The laser light bounced back and forth between the mirrors, covering a distance of several kilometers by the time it exited the optical cavity. During this time, the laser light struck all the molecules within the cavity.

The technology was able to detect a wide range of molecules, the scientists said. The findings, published in the current issue of Optics Express, suggest this technique, which still needs to be evaluated in clinical trials, may offer a low-cost, rapid and noninvasive method of health screening, the researchers said.

More information

The American Association for Clinical Chemistry has more about health screening tests.

-- Robert Preidt

SOURCE: Optical Society of America, news release, Feb. 18, 2008

Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. American Laser Centers Names Bill Van Huis as Chief Revenue Officer
2. Scientists using laser light to detect potential diseases via breath samples, says new study
3. Laser light may be able to detect diseases on the breath
4. UT Southwestern plastic surgeons deploy new carbon dioxide-based fractional laser
5. Integrated Laser Therapies Launches, Offers Low-power, Therapeutic Laser Devices and Training for Therapists and Consumers
6. Keep Father Time From Marching On: New Laser Treatments Offer Gentle and Effective Skin Resurfacing in a Flash
7. Acne And Rosacea Getting You Down? Laser, Light And Cosmetic Treatments Give Patients A Much-Needed Boost
8. Alma(TM) Lasers to Debut Five New Products at the 66th Annual Meeting of the American Academy of Dermatology
9. Laser Energetics Provides Joint Venture Update to Shareholders
10. Laser Energetics Receives a $550,000 Order for a Dental Laser System
11. CoolTouch Introduces CoolLipo(TM) Laser System, Recently FDA Cleared for Laser-Assisted Lipolysis
Post Your Comments:
Related Image:
Laser Screen  Detects  Diseases in Breath
(Date:11/30/2015)... ... 30, 2015 , ... ChiliPad , Chili Technology’s temperature-controlled ... through quality sleep. Tim DiFrancesco, training coach for the LA Lakers, recommends ChiliPad ... precisely regulates the surface temperature of each side of the bed so that ...
(Date:11/30/2015)... ... November 30, 2015 , ... ... patient centered orthopedic care. Led by John Vitolo, M.D., the center offers ... condition, the team at Advocare Orthopedic & Sports Medicine is ready to help ...
(Date:11/30/2015)... ... November 30, 2015 , ... Dr. Seth D. Margulies ... locations, patients can visit Dr. Margulies to experience the best available orthodontic experience in ... title of "NJ Top Dentist"! , Orthodontics is the branch of dentistry that specializes ...
(Date:11/30/2015)... ... November 30, 2015 , ... Newly reviewed and approved “NJ Top Dentist”, ... Tufts School of Dental Medicine in 1935. His father graduated from NYU School ... in dentistry as well as their commitment and passion to the Practice of Dentistry. ...
(Date:11/30/2015)... ... November 30, 2015 , ... The recently ... Poison Data System (NPDS) reveals that in 2014, someone called a poison center ... two million of which were human exposure cases. , The American Association of ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... India , November 30, 2015 ... 2014, and is expected to grow at a CAGR of 7.6% ... was valued at USD 135.6 million in 2014, and is ... 2020. --> According to the new Market Research Report ... invasive, non-invasive), By End User (Hospitals, ambulatory care, others) - Analysis ...
(Date:11/30/2015)... PUNE, India , November 30, 2015 ... new market research report "Dental Lasers Market by Product (Soft ... Treatment, Periodontitis), End User (Hospitals, Clinics), and Geography - Global ... USD 224.7 Million by 2020, at a CAGR of 5.2% ... , Browse 140 market data Tables and 62 Figures spread ...
(Date:11/30/2015)... MOUNTLAKE TERRACE, Wash. and ST. ... Cross and Express Scripts (NASDAQ: ESRX ) today ... benefit agreement. The partnership, which began in 1999, will ... --> --> After evaluating pharmacy ... process, Premera concluded that Express Scripts continues to offer ...
Breaking Medicine Technology: