Navigation Links
Studies Suggest Link Between Smog, Joint Disease
Date:11/5/2011

SATURDAY, Nov. 5 (HealthDay News) -- Exposure to certain types of air pollution is associated with an increased risk for the painful joint disease known as rheumatoid arthritis, new research suggests.

This link is strongest for sulfur dioxide, one of the six most common air pollutants in the United States, according to the findings from two studies scheduled to be presented Wednesday at the American College of Rheumatology annual meeting, in Chicago.

In the studies, investigators looked at 2,092 rheumatoid arthritis patients and more than 93,000 people without the disease in the United States and Sweden, and used their home addresses to estimate their long-term exposure to several common air pollutants, both gaseous (for example, carbon monoxide, sulfur dioxide and nitrogen dioxide) and particulate (soot or dust).

There was no evidence of increased risk of rheumatoid arthritis associated with particulate air pollution. But increasing exposure to sulfur dioxide and oxides of nitrogen in the 10 and 20 years prior to onset of rheumatoid arthritis was associated with increased risk of the disease among the Swedish participants, the investigators found.

Low-, medium- and high-exposure to sulfur dioxide, nitrogen dioxide or nitrogen oxide were associated with an up to 7 percent, 11 percent and 7 percent increased risk for rheumatoid arthritis, respectively, according to the Swedish study.

These increased risks of rheumatoid arthritis were higher in people with less than a university education than in those with at least a university education. Education levels are a measure of socioeconomic status.

People "with a lower socioeconomic status are more likely to live in houses where more air pollution leaks in from the outside or other factors such as general health status that may make them more susceptible to the effects of air pollution," Dr. Jaime Hart, an instructor in medicine at Brigham and Women's Hospital in Boston, said in an American College of Rheumatology news release.

Hart was lead investigator of the U.S. study and was scheduled to present the U.S. and Swedish findings at the meeting.

The U.S. study found that only exposure to sulfur dioxide was associated with modest increases in rheumatoid arthritis risk. Those with a high exposure to sulfur dioxide had a 5 percent greater risk of rheumatoid arthritis than those with low exposure.

But Hart noted that the U.S. participants were part of the Nurses' Health Study, which meant they may have had a higher overall socioeconomic status than the Swedish participants.

Study data and conclusions presented at medical meetings should be viewed as preliminary until published in a peer-reviewed journal.

About 1.3 million Americans have rheumatoid arthritis, which typically affects women twice as often as men. Previous research has suggested a connection between environmental factors and rheumatoid arthritis.

More information

The American Academy of Family Physicians has more about rheumatoid arthritis.

-- Robert Preidt

SOURCE: American College of Rheumatology, news release, Nov. 5, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Gene therapy shows promise as hemophilia treatment in animal studies
2. MU studies link depression and breast cancer outcomes
3. CHEST 2011: Embargoed studies highlight new lung cancer and COPD research
4. European studies on risks of hepatocellular carcinoma
5. Trio of studies support use of PET/CT scans as prostate cancer staging tool
6. Hospital Programs to Reduce Antibiotic Resistance Working: Studies
7. Start HIV Drug Treatment Early in Patients With TB: Studies
8. Researchers review studies on CCSVI-MS link
9. Clemson researchers using interactive vision tool for driving studies
10. FDA Focuses on Silicone Breast Implant Safety Studies
11. SHSU studies GPS monitoring of Arizona sex offenders
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Studies Suggest Link Between Smog, Joint Disease
(Date:12/9/2016)... ... December 09, 2016 , ... Flottman ... and outserts. As a means of expanding capabilities Flottman has added a ... to individually code professional inserts (PIs) and patient package inserts (PPIs) that will ...
(Date:12/9/2016)... , ... December 09, 2016 , ... An inventor from ... to safely ride all types of amusement park rides. , The patent-pending SAFETY STRAP ... is easy to use and could be set up in a matter of minutes, ...
(Date:12/9/2016)... ... December 09, 2016 , ... "I had a terrible time trying ... Va. "I thought that if the nebulizer had a more child-friendly design, then children ... , He developed the patent-pending NEBY to avoid the need to deliver medication via ...
(Date:12/8/2016)... MA (PRWEB) , ... December 08, 2016 , ... ... Workers Compensation Research Institute (WCRI) officially opened registration today for its 33rd ... Hotel in Boston, MA . , The theme of the conference is “Persistent ...
(Date:12/8/2016)... , ... December 08, 2016 , ... ... offering Medication Therapy Management (MTM), adherence, and other pharmacist-delivered patient care services, has ... general counsel and Eric Hoessel to vice president of sales. , Litsinger ...
Breaking Medicine News(10 mins):
(Date:12/9/2016)... , Dec 9, 2016 Research ... Screening Market - Forecast to 2021" report to their ... ... of open innovative models in the pharmaceutical and biotechnology industry ... and rising government funding. Emerging markets and growing research activities ...
(Date:12/9/2016)...  RxWiki Inc., a digital health company that powers ... thousands of pharmacies through its Digital Pharmacist SaaS platform, ... "50 on Fire" Award in the Health and Life ... the award as one of Austin,s fastest growing companies," ... RxWiki. "Our platform gives independent retail pharmacies the digital ...
(Date:12/9/2016)... , Dec. 9, 2016  Forge Therapeutics, ... AG (Frankfurt Stock Exchange: EVT, TecDAX, ISIN: DE0005664809) ... ,LpxC, for the treatment of bacterial infections including ... been recognized as an attractive antibacterial target for ... lack of suitable chemical starting points has hampered ...
Breaking Medicine Technology: