Navigation Links
Smallest Air Pollution Particles Hurt Heart Most
Date:1/19/2008

Cause plaque build-up in arteries, negate effects of "good" cholesterol

SATURDAY, Jan. 19 (HealthDay News) -- The tiniest bits of air pollution from your vehicle's exhaust may be the most dangerous to your heart's health, suggests a new U.S. study.

Particles that are about one-thousandth the size of a human hair, cause plaque build-up in the arteries, according to a University of California, Los Angeles-led study. This condition, called atherosclerosis, can lead to heart attack and stroke.

These particles also contribute to hardening of the arteries by shutting down the protective qualities of so-called "good" high-density lipoprotein (HDL) cholesterol, according to the study, which appears in the Jan. 17 online edition of Circulation Research.

Over five weeks, researchers exposed mice with high cholesterol to larger fine pollution particles (2.5 micrometers in size) or ultrafine particles (less than 0.18 micrometers), then compared them to mice exposed to filtered air. The mice exposed to ultrafine particles had 25 percent more arterial plaque development than the mice exposed to fine particles and 55 percent more than mice that breathed filtered air.

"This suggests that ultrafine particles are the most toxic air pollutants in promoting events leading to cardiovascular disease," study author Dr. Jesus Araujo, an assistant professor of medicine and director of environmental cardiology at UCLA's David Geffen School of Medicine, said in a prepared statement.

While the U.S. Environmental Protection Agency regulates fine pollution particles, it doesn't monitor ultrafine -- or nano-sized -- particles, according to background information in a news release about the study.

"We hope our findings offer insight into the impact of nano-sized air pollutant particles and help explore ways for stricter air quality regulatory guidelines," principal investigator Dr. Andre Nel, UCLA's chief of nanomedicine, said in a prepared statement.

More information

The American Academy of Family Physicians has more about the possible health effects of air pollution.



-- Robert Preidt



SOURCE: University of California, Los Angeles news release, Jan. 17, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. VIDEO from Medialink and Siemens: Worlds Smallest Ultrasound Package Launches in the U.S.
2. Good Imaging Now Comes in the Worlds Smallest Ultrasound Package
3. Medicare Offers Smallest Rise in Premiums in 6 Years
4. Pollution shrinks fetus size: Brisbane study finds
5. Traffic Pollution Hurts Asthmatic Kids Lungs
6. EPA Plan to Evade Required Cuts in Mercury Pollution Challenged in Court by States, Tribes, Health and Environmental Groups
7. Los Angeles Port Pollution, Intl Trade & Goods Movement Conference This Weekend
8. Link Between Air Pollution, Stroke Gets Clearer
9. High pollution linked to poor lung function growth in children in Mexico City
10. Air pollution linked to cardiovascular risk indices in healthy young adults
11. Novel 3-D cell culture model shows selective tumour uptake of nanoparticles
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Smallest Air Pollution Particles Hurt Heart Most 
(Date:10/13/2017)... ... , ... PurhealthRX , a leading Health and Nutrition Company, is announcing ... full spectrum CBD oil will revolutionize the rapidly growing CBD market by reducing the ... incorporated into liquid products, while reducing costs to end users. , The team of ...
(Date:10/13/2017)... N.J. (PRWEB) , ... October 13, 2017 , ... The ... Holly Day Market. Featuring a collection of specialty vendors and unique items from across ... personalized and quality-focused health and wellness services offered by the VNA. The boutique ...
(Date:10/13/2017)... Fairfax, VA (PRWEB) , ... October 13, 2017 ... ... provider of DevOps and Agile Software Development, has been awarded a contract by ... (EATS) Blanket Purchase Agreement (BPA) aims to accelerate the enterprise use of Agile ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... Planet Fitness, ... the U.S., announced today its plans to open a flagship location in Covington, LA ... the former Rooms To Go store next to Office Depot in the Holiday Square ...
(Date:10/12/2017)... ... October 12, 2017 , ... Information about ... intend to develop to enable prevention of a major side effect of chemotherapy ... especially in pediatric patients. For cisplatin, hearing loss is FDA listed on-label as ...
Breaking Medicine News(10 mins):
(Date:9/18/2017)... PROVIDENCE, R.I. , Sept. 18, 2017 ... in the fields of bioinformatics and immune ... to develop a protective avian influenza A (H7N9) vaccine. ... is distantly related to seasonal influenza and ... approaches, which rely on prior exposure to be ...
(Date:9/12/2017)... , Sept. 12, 2017   EcoVadis , the leading platform ... published the first annual edition of its Global CSR Risk and Performance ... evaluated by EcoVadis, based on Scorecard Ratings that analyzed nearly 800,000 data ... ... ...
(Date:9/12/2017)... FRANCISCO , Sept. 12, 2017  ValGenesis ... Management Solutions (VLMS), is pleased to announce the ... a member of its Board of Directors and ... ValGenesis VLMS enables life science companies to manage ... the use of paper in this process. Furthermore, ...
Breaking Medicine Technology: