Navigation Links
Vietnam Vets Study Links Asthma and PTSD

Research in twins found those with most stress symptoms 2.3 times more likely to have respiratory condition

THURSDAY, Nov. 15 (HealthDay News) -- A study of male twins who served in Vietnam has uncovered a strong link between asthma and post-traumatic stress disorder (PTSD).

Columbia University researchers, reporting in the Nov. 15 issue of the American Journal of Respiratory and Critical Care Medicine, found that those who suffered the most from PTSD were more than twice as likely to have asthma.

"This is very good data," said Keith A. Young, co-director of the Central Texas Veterans Health Care System Neuropsychiatry Research Program. "One of the things that is very clearly delineated by this study is that there truly is an association. This association has been seen with other anxiety disorders before, and there were some hints with PTSD, but this is the best. This kind of sets it in stone."

The challenge now is to find out whether this is a cause-and-effect relationship.

Previous studies have indicated a more general link between anxiety disorders and asthma, but this study focused specifically on PTSD, a disorder that involves nightmares, flashbacks and panic attacks linked to "triggers" that develop after exposure to combat or other extremely disturbing events.

This study looked at 3,065 male twin pairs listed in the Vietnam Era Twin Registry.

The twins were either identical (meaning they shared all the same genetic material) or fraternal (sharing only half their genetic material). Such twin studies are useful to science, because they can help tease out genetic and environmental influences.

The twins in this study had all lived together as children and had all served on active military duty in Vietnam. There were no significant differences in history of combat exposure or cigarette smoking. The overall prevalence of asthma was 6 percent and was about the same in identical and fraternal twins.

Twins who suffered from the most PTSD symptoms were 2.3 times more likely to have asthma when compared with those who suffered from the least PTSD symptoms. The increased risk was about the same for both fraternal and identical twins, suggesting an environmental underpinning rather than a genetic one.

"If there had been a strong genetic component to the link between asthma and PTSD, the results between these two types of twins would have been different, but we didn't find any substantial differences between the two," lead researcher Renee D. Goodwin, an assistant professor of epidemiology at the Mailman School of Public Health at Columbia University in New York City, said in a statement.

No one knows what the mechanisms are behind the association. It's possible that some sort of traumatic stress could trigger both PTSD and asthma, or one condition could contribute to the other.

"In my mind, the most likely thing that would relate these two is childhood stress," Young said. "It's very well-known that children who are a under a lot of stresses can grow up to have a different mental health outcome than their twin."

According to the study authors, understanding the association better may help PTSD prevention efforts by suggesting ways to modify environmental risk factors.

More information

For more on PTSD, visit the U.S. National Institute of Mental Health.

SOURCES: Keith A. Young, Ph.D., associate professor, psychiatry and behavioral science, Texas A&M Health Science Center College of Medicine, and co-director, Central Texas Veterans Health Care System Neuropsychiatry Research Program, Waco and Temple; Nov. 15, 2007, American Journal of Respiratory and Critical Care Medicine

Copyright©2007 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Battle Continues Over Vietnam PTSD Numbers
2. Penn study finds pro-death proteins required to regulate healthy immune function
3. New study shows promise in reducing surgical risks associated with surgical bleeding
4. Study, meta-analysis examine factors associated with death from heatstroke
5. Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinsons symptoms
6. Study says COPD testing is not measuring up
7. Preclinical study suggests organ-transplant drug may aid in lupus fight
8. Ability to cope with stress can increase good cholesterol in older white men, study finds
9. High alcohol consumption increases stroke risk, Tulane study says
10. Mailman School of Public Health study examines link between racial discrimination and substance use
11. Pitt study finds inequality in tobacco advertising
Post Your Comments:
Related Image:
Vietnam Vets Study Links Asthma and PTSD 
(Date:11/25/2015)... ... November 25, 2015 , ... For the first time, Vitalalert ... Organizations, One Beat ” campaign. The partnership between the two groups began in 2014 ... MAP International’s cause. , MAP International was founded in 1954 and is an international ...
(Date:11/25/2015)... ... ... On November 25, 2015, officials of Narconon Arrowhead , the drug rehabilitation ... new cutting edge recovery program that has been 50 years in the making. ... with the purpose to free addicts from the symptoms and negative behaviors of addiction. ...
(Date:11/25/2015)... ... ... Smiles by Stevens is pleased to announce the addition of Botox® for ... aware of the benefits of Botox® in the treatment of moderate facial wrinkling, few ... and pain as a result of Jaw Tension, TMJ (temporo-mandibular joint) disorder, and Bruxism ...
(Date:11/25/2015)... ... November 25, 2015 , ... In an ongoing Clinical Study conducted by an ... IL, UV Angel is evaluating the efficacy of its product and its disinfection protocol. ... 30 beds) from May 2014 through October 2015 at a 360-bed, acute-care, academic medical ...
(Date:11/25/2015)... Spring, Md (PRWEB) , ... November 25, 2015 ... ... Pulmonary Hypertension Association (PHA) announces the nation’s Periwinkle Pioneers, individuals and groups responsible ... history of this disease. The Periwinkle Pioneers, nominated by the public, will receive ...
Breaking Medicine News(10 mins):
(Date:11/25/2015)... 2015 Kitov Pharma ceuticals ... a biopharmaceutical company focused on the development of therapeutic ... today announced the closing of its previously announced underwritten ... ), each representing 20 ordinary shares of the Company, ... ADSs and warrants were issued in a fixed combination ...
(Date:11/25/2015)...  Today AVACEN Medical announced the issue of United States patent No. ... ". This patent shields the company,s AVACEN 100 dry heat therapy medical device and specific methods ... Photo - ... ... ...
(Date:11/25/2015)... , Nov. 25, 2015 USP 800 ... drug preparations (e.g. pharmacists, pharmacy technicians, nurses, physicians, ... technicians). The chapter also covers all entities which ... pharmacies, hospitals, other healthcare institutions, patient treatment clinics, ... --> --> What is ...
Breaking Medicine Technology: