HOME >> BIOLOGY >> NEWS
Exposure to pollution before viral infection linked to more serious asthma attacks

Children with asthma at risk of viral infection from flu or the common cold could also be at an increased risk of severe asthma attacks if they have been exposed to nitrogen dioxide pollution from sources such as vehicle exhausts or gas cookers. A link between exposure to the air pollutant nitrogen dioxide and respiratory disease has been suggested. Viral infections are the major cause of asthma exacerbations. Anoop Chauhan from St Mary's Hospital, Portsmouth, UK, and colleagues assessed whether there is a relation between nitrogen dioxide exposure and the severity of asthma exacerbations caused by proven respiratory viral infections in children.

114 asthmatic children aged between 8 and 11 years (recruited from families where there were no smokers) recorded daily upper respiratory-tract symptoms (e.g., runny nose, sneezing, headache) and asthma symptoms (cough, wheeze, shortness of breath), and measured personal nitrogen dioxide exposures every week for around a year.

The investigators confirmed all respiratory infections by laboratory analysis (using highly sensitive biotechnology to measure the viral genetic material) and compared childrens' exposure to nitrogen dioxide one week before the onset of infection with the severity of asthma attacks in the week after respiratory infection. They found that children with greater exposure to nitrogen dioxide were more likely to report more severe lower respiratory-tract symptoms which were in turn associated with exacerbated asthma symptoms the week after infection.

Anoop Chauhan comments: "We have shown that higher personal nitrogen dioxide exposure might increase the severity of virus-induced asthma exacerbations and these findings have potential implications for public health. Severe exacerbations have the largest effect on the health costs associated with asthma, especially those that result in visits to family doctors and hospital admissions. In asthmatic children with colds, high nitr
'"/>

Contact: Joe Santangelo
j.santangelo@elsevier.com
212-633-3810
Lancet
5-Jun-2003


Page: 1 2

Related biology news :

1. Exposure to low-level magnetic fields causes DNA damage in rat brain cells, researchers find
2. Exposure to toxin in certain foods could cause testicular cancer
3. Exposures to second-hand smoke lower than believed, ORNL study finds
4. For First Time In 40 Years National Jewish Researchers Report Chronic Beryllium Disease Caused By Extremely Low Levels Of Exposure
5. Study Of Childrens Fillings Finds No Mercury Exposure
6. Brief Exposure To High Temperature Has Lasting Effect On Nervous System
7. Spraying Water Containing Airborne Bacteria Found At Some Indoor Swimming PoolsCan Cause "Lifeguard Lung" Following Long-Term Exposure
8. Science Article Criticizes Federal Policy Regarding Lead Exposure And Childrens Health
9. International Study Finds Mothers Lifetime Lead Exposures May Put Breast-Fed Newborns At Risk
10. Three-Way Gene-Gene-Environmental Exposure Interaction Shown By NIEHS To Escalate Smoking-Related Bladder Cancer
11. Scientists At UNC-CH Find Aberdeen Pesticide Exposure, But Few Symptoms

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2017)... May 16, 2017   Bridge Patient Portal ... and MD EMR Systems , an electronic ... for GE, have established a partnership to build ... and the GE Centricity™ products, including Centricity Practice ... These new integrations will allow healthcare ...
(Date:4/18/2017)... , April 18, 2017  Socionext Inc., a global expert in ... media edge server, the M820, which features the company,s hybrid codec ... provided by Tera Probe, Inc., will be showcased during the upcoming ... NAB show at the Las Vegas Convention ... Click ...
(Date:4/11/2017)... BEACH GARDENS, Fla. , April 11, 2017 ... identity management and secure authentication solutions, today announced ... contract by Intelligence Advanced Research Projects Activity (IARPA) ... for IARPA,s Thor program. "Innovation has ... onset and IARPA,s Thor program will allow us ...
Breaking Biology News(10 mins):
(Date:6/20/2017)... ... June 20, 2017 , ... National ... well-versed leader with extensive assay development and biomarker expertise, as VP of Scientific ... Boston CRO specializing in bio-analytical assay development and sample testing services. The organization ...
(Date:6/20/2017)... San Francisco, CA (PRWEB) , ... June 20, ... ... with patented technology for discovery of antibody therapeutics from millions-diverse immune repertoires, announces ... International Conference in San Diego, California. Dave Johnson, PhD, CEO of GigaGen, will ...
(Date:6/19/2017)... ... 19, 2017 , ... EDETEK, Inc., a clinical technology company ... launching two new additions of its award-winning cloud-based platform CONFORM™: Information Hub and ... 2017 Annual Meeting in Chicago, IL, June 19-22, 2017. , “Modern clinical trials ...
(Date:6/19/2017)... Ames, Iowa (PRWEB) , ... June 19, 2017 , ... ... and interplay among its cells and tissues by delivering pollen and nectar containing nutrients ... and the means to stay healthy. , Many recent indicators point to a decline ...
Breaking Biology Technology:
Cached News: