Navigation Links
Air Pollution May Speed Hardening of Arteries
Date:4/24/2013

TUESDAY, April 23 (HealthDay News) -- Long-term exposure to air pollution may speed up the process of atherosclerosis, also known as hardening of the arteries, a new study suggests.

Although this exposure to higher concentrations of air pollution could increase people's risk for heart attacks and stroke, the researchers noted that reductions in air pollution could have the opposite effect.

The study involved nearly 5,400 people between the ages of 45 and 84 in six different U.S. cities who did not have heart disease. The researchers examined the air pollution levels at each of their homes, and then compared the levels to ultrasound measurements of their blood vessels taken at least three years apart.

After taking other risk factors, such as smoking, into account, the researchers found that, on average, the thickness of the carotid artery increased by 0.014 millimeters each year.

Thickening of the inner two layers of this key blood vessel, which supplies blood to the head, neck and brain, occurred more quickly following exposure to higher concentrations of fine particulate air pollution. The researchers said the thickness of the carotid artery is an indicator of how much atherosclerosis is present in the arteries throughout the body.

"Our findings help us to understand how it is that exposures to air pollution may cause the increases in heart attacks and strokes observed by other studies," study leader Sara Adar, the John Searle Assistant Professor of Epidemiology at the University of Michigan School of Public Health, said in a news release.

On the other hand, the study revealed that reductions in fine particulate air pollution can help slow the thickening of the carotid artery.

"Linking these findings with other results from the same population suggests that persons living in a more polluted part of town may have a 2 percent higher risk of stroke as compared to people in a less polluted part of the same metropolitan area," Adar said in the news release.

"If confirmed by future analyses ... these findings will help to explain associations between long-term [small particle] concentrations and clinical cardiovascular events," the study's authors wrote.

In response to the findings, Nino Kuenzli, of the University of Basel in Switzerland, said in a news release that the study "further supports an old request to policy makers -- namely that clean air standards ought to comply at least with the science-based levels proposed by the World Health Organization."

The study was published online April 23 in the journal PLoS Medicine.

More information

The U.S. Environmental Protection Agency provides more information on the link between air pollution and heart health.

-- Mary Elizabeth Dallas

SOURCE: PLoS Medicine, news release, April 23, 2013


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. EPA to Cut Air Pollution from Natural Gas Fracking
2. Beijings Olympic Smog Shows Pollutions Effect on Health
3. Prenatal exposure to pollution especially dangerous for children with asthma
4. Kitchen exhaust fans vary in effectiveness in reducing indoor air pollution
5. Using Exhaust Fan on a Gas Stove Cuts Pollution: Study
6. UT Dallas engineers identify material that reduces pollution from diesel engines
7. Gestational exposure to urban air pollution linked to vitamin D deficiency in newborns
8. Air pollution, gone with the wind
9. Study Sees Possible Link Between Air Pollution and Autism Risk
10. Maternal exposure to outdoor air pollution associated with low birth weights worldwide
11. Air pollution primes children for asthma-related cockroach allergy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... ... ... Bruton Memorial Library on June 21 due to a possible lice infestation, as reported by ... lice: the parasite’s ability to live away from a human host, and to infest common ... the event that lice have simply gotten out of control. , As lice are a ...
(Date:6/25/2016)... TX (PRWEB) , ... June 25, 2016 , ... ... the United States, named Dr. Sesan Ogunleye, as the Medical Director of its new ... the facility Medical Director of our new Mesquite location,” said Dr. James M. Muzzarelli, ...
(Date:6/25/2016)... , ... June 25, 2016 , ... ... and non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as a ... area —Johnson is one of the first doctors to perform the treatment. Orthobiologics ...
(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the benefits of moderation, whether ... latter, setting the bar too high can result in disappointment, perhaps even self-loathing. However, ... their goal. , Research from PsychTests.com reveals that behind the tendency ...
(Date:6/24/2016)... ... , ... Those who have experienced traumatic events may suffer from a complex ... as drug or alcohol abuse, as a coping mechanism. To avoid this pain and ... a traumatic event. , Trauma sufferers tend to feel a range of emotions, from ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... June 27, 2016  VMS Rehab Systems, Inc. ( ... take whatever measures required to build a strong and ... is currently listed on the OTC Markets-pink current trading ... and CEO, "We are seeing an anomaly in market ... not only by the Company, but shareholders and market ...
(Date:6/24/2016)... , June 24, 2016  Collagen Matrix, ... design, development and manufacturing of collagen and mineral ... announced today that Bill Messer has ... Marketing to further leverage the growing portfolio of ... devices. Bill joins the Collagen Matrix ...
(Date:6/24/2016)... Dublin - ... " Global Markets for Spectroscopy Equipment" report ... This report focuses on the global market of ... applications in various applications. The report deals with spectroscopy ... industries: pharmaceutical and biotechnology, food and beverage, and environmental ...
Breaking Medicine Technology: