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:3/29/2017)... ... March 29, 2017 , ... ... squash, announced it has enlisted New York City-based sports and entertainment marketing firm ... and procure sponsorship opportunities for the Professional Squash Association (PSA), which includes first-time ...
(Date:3/29/2017)... ... March 30, 2017 , ... Grass pollen is the main cause of hay fever ... stuff. The season for grass pollen runs from May to July each year; with the ... victim to do? HayMax™ allergen barrier balms ( http://www.haymax.us ) provide an effective defense against ...
(Date:3/29/2017)... ... March 30, 2017 , ... Youth Futures International (YFI) premiered ... feedback from high school and college students who have participated in the program every ... and YFI is now accepting applications for enrollment. Visit http://www.ghana.yfiexperience.org to ...
(Date:3/29/2017)... ... March 30, 2017 , ... Sports Brand EXOUS Bodygear ... which retails normally at $29.97; for the remaining days of March, the price will ... reduced to a special price of just $10 (regular retail price $19.97). , The ...
(Date:3/29/2017)... , ... March 29, 2017 , ... ... Hours at a Walgreens store in Mississippi. AngioGenesis Labs, makers of HeartBoost, BrainBest ... in two southeastern states. Ingredients in HeartBoost, an over the counter heart healthy ...
Breaking Medicine News(10 mins):
(Date:3/30/2017)... Revenue Prospects by Product Type (Metered Dose Inhalers, Dry ... Respiratory Inhalers - our new study reveals trends, R&D progress, ... If you are involved in this sector you must read this ... revenues streams to 2027, assessing data, trends, opportunities and business prospects ... Discover how ...
(Date:3/29/2017)... NEW YORK , March 29, 2017 ... infection and promote healing of the wound. The industry ... devices and products for the treatment of wounds caused ... that occur due to diseases such as diabetes, skin ... Europe was the largest ...
(Date:3/29/2017)... , March 29, 2017  BioSpecifics Technologies Corp. ... continues to develop collagenase based-therapies with a first ... marketed as XIAFLEX ®  in the U.S. and ... present a corporate overview at the upcoming 16 ... April 5, 2017 at 8:00 a.m. ET in ...
Breaking Medicine Technology: