Navigation Links
Heavy traffic makes breathing a burden in children
Date:12/14/2007

Exposure to traffic pollution may increase respiratory problems and reduce lung volumes in children with asthma, according to researchers who studied the effects of road and traffic density on childrens lung function and respiratory symptoms in the border town of Ciudad Juarez in Mexico.

Our results show that close proximity to vehicular traffic-related emissions, either at home or at school, can lead to chronic effects in the respiratory health of children with asthma, said Fernando Holguin, M.D., M.P.H., assistant professor of pulmonary medicine at Emory University School of Medicine, and lead author of the study, which appeared in the second issue for December of the American Journal of Respiratory and Critical Care Medicine, published by the American Thoracic Society.

Traffic-related pollutants are known to be associated with asthma severity, but to what extent they affect airway inflammation and lung volume in both asthmatic and nonasthmatic children was unknown. Major cities along the northern and southern US borders often have high levels of vehicular traffic flows, especially at the border crossing points. Vehicular traffic emissions from the high density of border crossing traffic may be negatively affecting the health of populations who live in nearby areas, said Dr. Holguin.

To investigate how specific traffic-related pollutants affected childrens lung function and respiratory symptoms, the researchers recruited 200 age- and sex-matched asthmatic and non-asthmatic schoolchildren from ages six to 12. Over the course of a year, they measured road and traffic density and traffic-associated pollutants near the childrens homes and schools, and evaluated each childs lung function and respiratory symptoms consecutively for four months.

Asthmatic children, but not children without asthma, were affected by living in homes in areas with high road density. They had higher levels of exhaled NO, as well as reductions in both lung volume and airflow. Living within 50 meters of high density road areas increased the chances of respiratory symptoms in asthmatic children by more than 50 percent.

These results may have implications for asthmatic children residing in these conditionsespecially among those who may not be adequately controlled with medicationsfor they may be more susceptible to vehicular emissions, said Dr. Holguin.

While increased traffic and road density near schools also indicated respiratory effects in both asthmatic and nonasthmatic children, the data did not attain statistical significance in this study. Nonetheless, Dr. Holguin noted, this finding could have significant public health policy implications because a significant proportion of schools in many countries are located in close proximity to major roads.

This is the first study of its kind to evaluate traffic-related emissions exposure in a large group of children with and without asthma over an entire year. The findings support and add to previous studies which have looked at the effects of traffic emissions on children, but it may have been underpowered to detect significant associations between respiratory outcomes and specific pollutants.

These results are significant because they quantitatively demonstrate that closer exposure to roads lead to chronic airway inflammation and reductions in lung function, said Dr. Holguin. This study points the way for future research to determine what preventive measures may be taken to reduce exposure and or the health effects of vehicular emissions in susceptible children.


'/>"/>

Contact: Keely Savoie
ksavoie@thoracic.org
212-315-8620
American Thoracic Society
Source:Eurekalert

Related medicine news :

1. Heavy Drinking Boosts Stroke Risk for Chinese Men
2. Good Cholesterol Wont Help Heavy-Drinking Older Men
3. Family history of alcoholism affects response to drug used to treat heavy drinking
4. Diabetes dilemma: older people with diabetes face a heavy burden from co-existing health conditions
5. Age, burden, divorce and heavy tea consumption are significant risk factors for erosive esophagitis
6. Heavy drinking, conduct disorder linked to high-risk sexual behavior
7. Traffic Fumes Plus Genes Boosts Kids Asthma Risk
8. A drug-sensitive traffic cop tells potassium channels to get lost
9. Jogging in Traffic Cuts Blood Flow to Heart
10. Detroit Metro Tower Air Traffic Controllers File Lawsuit Alleging Improper Mold Removal and Health Effects
11. Protein-dependent switch regulates intracellular trafficking in epithelial cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/19/2017)... ... 2017 , ... Parker at Stonegate, an assisted living residence ... caregivers, volunteers, thought leaders, researchers, educators and partners leading the way in services ... refresh the carpeting with the goal of maintaining the same precise colors and ...
(Date:8/18/2017)... (PRWEB) , ... ... ... For Immediate ... Polling Shows Young Women Seek Sex and Relationship Advice from ...
(Date:8/18/2017)... Ca (PRWEB) , ... August 18, 2017 , ... ... quality liquid handling handheld devices. Through an educational webinar, they will present the ... users a chance to learn how easy you can automate everyday pipetting tasks. ...
(Date:8/18/2017)... ... August 18, 2017 , ... ... assistance that serves communities throughout southern Florida, is working to support the Take ... to children from low income families. , The Take Stock In Children Foundation ...
(Date:8/18/2017)... ... August 18, 2017 , ... ... trained practitioners specializing in bioidentical hormone replacement therapy and integrative medicine, has become ... and conditions of aging, such as menopause, andropause, thyroid disorder and adrenal insufficiencies. ...
Breaking Medicine News(10 mins):
(Date:8/15/2017)... 15, 2017 AccuGenomics, Inc., a diagnostic company ... announced that the company has provided an AccuKit to ... Carolina at Chapel Hill and to Qura Therapeutics for ... and quantify HIV reservoir and viral expression in human ... HIV Cure Center is a joint initiative between the ...
(Date:8/11/2017)... , Aug. 11, 2017 DarioHealth Corp. (NASDAQ: ... health and big data solutions, today announced that it ... August 14 and host a conference call at 9:00am ... operating and financial results and its strategy and outlook ... hosted by Erez Raphael , Chief Executive Officer, ...
(Date:8/8/2017)... 2017   Second-quarter ... (GAAP) loss per share from continuing operations ... increased 16 percent to $110 million ... percent to $161 million ... continuing operations increased 8 percent to $0.93 ...
Breaking Medicine Technology: