Navigation Links
Traffic, Dust Linked to Asthma in Kids
Date:11/24/2009

Exposure in infancy may lead to persistent wheezing, study finds

TUESDAY, Nov. 24 (HealthDay News) -- Infants exposed to outdoor traffic pollution and indoor endotoxin are at increased risk for asthma, researchers say.

Endotoxin -- a component of bacteria believed to trigger an immune response in humans -- is found in dust.

University of Cincinnati College of Medicine researchers found persistent wheezing (an early warning sign of asthma and other lung conditions) in 36 percent of 3-year-olds who were exposed to high levels of traffic pollution and indoor endotoxin as infants.

In comparison, wheezing was seen in 11 percent of children exposed to low levels of outdoor and indoor allergens as infants, and in 18 percent of children exposed to high levels of traffic pollution and low levels of indoor endotoxin. Endotoxin exposure alone appeared to have little effect on children, the study authors noted.

"There is a clear synergistic effect from co-exposure to traffic-related particles and endotoxin above and beyond what you would see with a single exposure that can be connected to persistent wheezing by age 3," study author Patrick Ryan, a research assistant professor of environmental health, said in a university news release. "These two exposure sources -- when simultaneously present at high levels -- appear to work together to negatively impact the health of young children with developing lungs."

"Traffic-related particles and endotoxin both seem to trigger an inflammatory response in the children monitored in this study. When put together, that effect is amplified to have a greater impact on the body's response," Ryan explained. "The earlier in life this type of exposure occurs, the more impact it may have long term. Lung development occurs in children up through age 18 or 20. Exposure earlier in life to both endotoxin and traffic will have a greater impact on developing lungs compared to adults whose lungs are already developed."

The findings are published in the Dec. 1 issue of the American Journal of Respiratory and Critical Care Medicine.

More information

The American Academy of Allergy, Asthma and Immunology offers tips for the prevention of allergies and asthma in children.



-- Robert Preidt



SOURCE: University of Cincinnati Academic Health Center, news release, Nov. 24, 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Cell phone studies: While walking or driving, cell phones increase traffic, pedestrian fatalities
2. Exposures to metals and diesel emissions in air linked to respiratory symptoms in children
3. DentaSOAK Dental Cleaner Reduces Infection Risk Linked to Mouthguards
4. Patients weight not linked to success of fibroid surgery
5. Pregnancy Complication May Be Linked to Thyroid Problems
6. Low Vitamin D Levels Linked to Heart Disease
7. Heavy Snoring Linked To Potentially Life-Threatening Conditions
8. Gene Linked to Breast Cancer Might Boost Heart Health
9. Fat collections linked to decreased heart function
10. Drugs to treat anemia in cancer patients linked to thromboembolism
11. Muscle Weakness Linked to Alzheimers Risk in Seniors
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... Yisrayl Hawkins, Pastor and Overseer ... one of the most popular and least understood books in the Holy Scriptures, Revelation. ... descriptions that have baffled scholars for centuries. Many have tossed it off as mere ...
(Date:10/12/2017)... , ... October 12, 2017 , ... ... services for healthcare compliance program management, will showcase a range of technology and ... for Assisted Living (NCAL) Convention and Expo to be held October 14–18, 2017 ...
(Date:10/12/2017)... ... October 12, 2017 , ... The American College of Medical Informatics (ACMI) ... FACMI, during the Opening Session of AMIA’s Annual Symposium in Washington, D.C. AMIA’s ... Morris F. Collen, a pioneer in the field of medical informatics, this prestigious award ...
(Date:10/12/2017)... ... ... Leading pediatric oncology experts at Children’s National Health System will ... the International Society of Paediatric Oncology (SIOP) Oct. 12-15. Chaired by Jeffrey ... Disorders at Children’s National, and Stephen P. Hunger, M.D., Chief of the Division ...
(Date:10/12/2017)... ... October 12, 2017 , ... Vohra Chief ... advancements to physician colleagues, skilled nursing facility medical directors and other clinicians at ... of Wound Care." , "At many of these conferences we get to educate ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... , Oct. 12, 2017   Divoti USA ... Jewelry up to the standard of the latest FDA requirements, which ... 2017). Anyone in need of Medical ID jewelry such ... Alert Jewelry are engraved in terms of the new ... Divoti offers ...
(Date:10/11/2017)... Oct. 11, 2017  True Health, a leader ... its effort during National Breast Cancer Awareness month ... risks. Research ... calculated that more than 10 million American women ... in BRCA1 or BRCA2 and have not had testing. ...
(Date:10/7/2017)... 6, 2017   Provista, a proven leader ... billion in purchasing power, today announced a new resource ... The Newsroom is the online home for case ... expert bios, news releases, slideshows and events. ... wealth of resources at their fingertips, viewers can also ...
Breaking Medicine Technology: