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Diesel Pollution May Damage the Heart
Try to avoid exercising during heavy pollution times, such as rush hour, researcher says

By Robert Preidt

FRIDAY, May 26, 2017 (HealthDay News) -- Pollution from diesel engines may cause heart damage, a British study suggests.

"There is strong evidence that particulate matter emitted mainly from diesel road vehicles is associated with increased risk of heart attack, heart failure and death," said lead author Dr. Nay Aung, a cardiologist and research fellow at Queen Mary University of London.

Aung's team reviewed data from more than 4,200 people in the United Kingdom. The study participants had undergone magnetic resonance imaging (MRI) of the heart. The researchers then calculated average diesel pollution exposure based on the study participants' home addresses.

Although the study wasn't designed to prove cause-and-effect, the researchers think the pollution stimulates an inflammatory response.

"Inhalation of fine particulate matter [PM2.5, which refers to atmospheric particulate matter with a diameter less than 2.5 micrometers] causes localized inflammation of the lungs followed by a more systemic inflammation affecting the whole body," Aung said.

And, as exposure rises, the larger the heart gets and the worse it performs, he said. Both of these factors are associated with increased illness and death from heart disease.

The study findings were scheduled to be presented on Friday at a European Society of Cardiology (ESC) meeting in Prague.

"Reducing PM2.5 emission should be an urgent public health priority and the worst offenders such as diesel vehicles should be addressed with policy measures," Aung said in an ESC news release.

Aung said there are some things people can do to reduce their risk.

"Avoid times and places where there is a high level of pollution," he said. "If you want to cycle into work and there is heavy traffic around that time, then try to find a quieter route. Walk on the part of the pavement furthest from cars to reduce the amount of pollution you breathe in.

"Those with cardiorespiratory diseases should limit the time spent outdoors during highly polluted periods such as rush hours," he added.

Studies presented at meetings are generally viewed as preliminary until published in a peer-reviewed journal.

More information

The Respiratory Health Association has more on diesel pollution.

SOURCE: European Society of Cardiology, news release, May 26, 2017

Copyright © 2017 HealthDay. All rights reserved. URL:http://consumer.healthday.com/Article.asp?AID=723076

Resources from HONselect: HONselect is the HON's medical search engine. It retrieves scientific articles, images, conferences and web sites on the selected subject.
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