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:5/26/2016)... ... 26, 2016 , ... Eating Recovery Center, Washington ... a brand new child and adolescent residential treatment center on June 1. The ... more specialized eating disorder treatment and access to life-saving care. , To celebrate, ...
(Date:5/26/2016)... ... May 26, 2016 , ... North Cypress Medical ... at Blackhorse Golf Club in Cypress. With the help of community partners, the event ... empowers, and renews hope for wounded service members and their families through health, wellness, ...
(Date:5/26/2016)... ... May 26, 2016 , ... American orthopedic surgeon and ... of Blue Horizon International (BHI), Brian Mehling, M.D., spoke at an International Conference ... 5-6, 2016 in Chicago, IL, USA. Dr. Mehling’s presentation was focused on stem ...
(Date:5/26/2016)... ... May 26, 2016 , ... Eugene Batelli, D.P.M., F.A.C.F.A.S, ... his wonderful accolades and stellar patient reviews, Dr. Batelli continues to be recognized ... Eugene Batelli is a highly trained Podiatric Surgeon who specializes in treating athletes ...
(Date:5/26/2016)... CA (PRWEB) , ... May 26, 2016 , ... ... (also knowns as a bunionette) treatment was more than humbled by customer demand over ... one of their SKU's mid sale. Now that Bunion Bootie has completely replenished its ...
Breaking Medicine News(10 mins):
(Date:5/25/2016)... -- According to market research "Global Insulin ... Forecast to 2022 - Industry Insights by Type (Insulin ... P&S Market Research, the global insulin delivery device market ... is expected to grow at a CAGR of 6.6% ... is expected to witness the fastest growth at a ...
(Date:5/25/2016)... 2016 Digital Health Dialog, LLC dba ... the US Patent and Trademark Office of U.S. ... processes for electronic opt-­in and processing of discount ... HIPAA compliance and otherwise. Logo - ... "Our technology allows for individuals to opt­-in ...
(Date:5/25/2016)... , May 25, 2016 ... 2016"market research report that provides an overview on ... analysis at various stages, therapeutics assessment by drug ... (RoA) and molecule type, along with latest updates, ... reviews key players involved in the therapeutic development ...
Breaking Medicine Technology: