Navigation Links
Laser Screen Detects Diseases in Breath
Date:2/25/2008

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:
*Name:
*Comment:
*Email:
Related Image:
Laser Screen  Detects  Diseases in Breath
(Date:2/11/2016)... ... February 11, 2016 , ... Student-doctors from Western University of ... Program Tuesday, February 9, taking one of the final steps in their medical ... positions across the country. Of the 103 student-doctors who comprise the College of ...
(Date:2/11/2016)... , ... February 11, 2016 , ... Florida Hospital presents ... take on the St. Louis Blues at the Amalie Arena. The puck drops at ... walk-through heart exhibit, the MEGA Heart, prior to the game. The MEGA Heart will ...
(Date:2/11/2016)... ... February 11, 2016 , ... The president released a ... Health System but would shift more of the cost burden to military beneficiaries. ... laid out in the defense budget as including limited quantifiable benefit fixes mixed with ...
(Date:2/11/2016)... Petersburg, FL (PRWEB) , ... February 11, 2016 ... ... providers and advocates will discuss how to improve care by making data on ... pediatric heart disease. The Summit on Transparency and Public Reporting of Pediatric and ...
(Date:2/11/2016)... ... February 11, 2016 , ... Atlantic Information Services, ... Benefit Model: A Case Study for Plans and Purchasers.” Executives from Intel Corp. ... with Intel on value-based health benefits program Connected Care, will discuss the challenges ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)...  Community pharmacists can help improve medication adherence and ... a custom-built medication synchronization program, Cardinal Health MedSync Advantage™. ... Schieber Family Pharmacy in Circleville, ... patients enrolled in this medication synchronization program, which is ... the patient, and it,s a win for us because ...
(Date:2/11/2016)... , Feb. 11, 2016  Delcath Systems, Inc. ... medical device company focused on oncology with an ... liver cancers, announces the engagement of Lars ... Global Medical Consultant. Dr. Birgerson will provide strategic ... clinical operations team to help ensure timely facilitation ...
(Date:2/11/2016)... Scientists from Silicon Biosystems Menarini today ... door to genetic analysis of previously preserved tumor ... isolate with 100 percent purity. Utilizing the com­pany,s ... various stages of development, the researchers were able ... are clinically relevant, and may change the way ...
Breaking Medicine Technology: