Navigation Links
Chlamydia may play role in a type of arthritis
Date:4/30/2009

Spondylarthritis (SpA) represents a group of arthritidies that share clinical features such as inflammatory back pain and inflammation at sites where tendons attach to bone. It includes ankylosing spondylitis (AS), psoriatic arthritis, inflammatory bowel-disease-related arthritis, reactive arthritis (ReA) and undifferentiated spondylarthritides (uSpA). Since Chlamydia trachomatis or Chlamydia pneumoniae (which are often asymptomatic) frequently cause ReA, a new study examined whether there was a connection between these two infections and uSpA. The study was published in the May issue of Arthritis & Rheumatism (http://www3.interscience.wiley.com/journal/76509746/home).

Led by John D. Carter of theUniversity of South Florida, the study involved blood and synovial tissue analysis from 26 patients who had chronic uSpA or Chlamydia-induced ReA. Synovial tissue samples from 167 osteoarthritis patients were used as controls. Samples were analyzed to assess chlamydial DNA and the 26 subjects were asked if they had any known exposure to Chlamydia trachomatis or Chlamydia pneumoniae and if so, the infection was documented in relation to the onset of their uSpA. They also underwent a physical exam that included evaluation of swollen and tender joints and other symptoms of SpA. The results showed that the rate of Chlamydia infection was 62 percent in uSpA patients, significantly higher than the 12 percent seen in control subjects.

It is believed that as many as 150,000 cases of Chlamydia trachomatis-induced ReA may appear in the U.S. each year compared to about 125,000 new cases of rheumatoid arthritis. This is a low estimate since it does not include cases resulting from Chlamydia pneumoniae. "Thus, Chlamydia-induced ReA represents a considerable burden on the health care systems of the U.S. and other nations, and its impact on those systems may well be significantly underrecognized," the authors state.

Most women with genital Chlamydia trachomatis infection have no symptoms at the time of the initial infection; this was also true of the patients in the study who had DNA evidence of Chlamydia. For Chlamydia pneumoniae, as many as 70 percent of acute infections are asymptomatic and, even when there are symptoms, definitive identification of the organism is rare. The authors point out that relying on identification of a symptomatic infection may therefore result in routine underdiagnosis or misdiagnosis of Chlamydia-induced ReA.

They add that because ReA is a type of SpA and patients with ReA do not present with the classic combination of symptoms of arthritis, conjunctivitis/iritis and urethritis, it is reasonable to believe that Chlamydia trachomatis plays a role in causing uSpA, which may in fact be ReA. They conclude that although there is no diagnostic test for Chlamydia-induced ReA, testing for chlamydial DNA in the synovial tissue of patients thought to have ReA may be the most accurate way of diagnosing the condition.


'/>"/>

Contact: Sean Wagner
medicalnews@bos.blackwellpublishing.com
781-388-8550
Wiley-Blackwell
Source:Eurekalert

Related medicine news :

1. Less Than Half of Young Women Screened for Chlamydia
2. Low Chlamydia Screening Rates Spur Outreach to Health Professionals
3. U.S. Chlamydia Infections Hit All-Time High
4. New Roche Chlamydia Test Approved for Use in European Union
5. New rapid Chlamydia test could enable test and treat strategy
6. U.S. Chlamydia Infections Hit All-Time High
7. Women with arthritis more likely than men to stop working
8. Computer use significantly affected by arthritis
9. SIMPONI(TM) (golimumab) Receives FDA Approval as First Once-Monthly Anti-TNF for Treatment of Rheumatoid Arthritis, Psoriatic Arthritis and Ankylosing Spondylitis
10. Wellesse Receives Corporate Sponsor of the Year Award From the Arthritis Foundations Pacific Northwest Chapter
11. Medarex to Receive Milestone Payment for Approval of SIMPONI(TM) for the Treatment of Rheumatoid Arthritis, Psoriatic Arthritis and Ankylosing Spondylitis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/8/2016)... ... February 08, 2016 , ... Remember the old saying “rub some ... to Perry A~, author of “Calcium Bentonite Clay” the health benefits of integrating clay ... and detoxifying the body. , A former motivational speaker, Perry A~ has since dedicated ...
(Date:2/8/2016)... ... 2016 , ... Discover the Rocky Mountain region’s longest running and impressive garden ... Attendees also get to see the most incredible gardens and home improvement experts that ... the Colorado Convention Center - 700 14th St. Denver CO, is an exciting event ...
(Date:2/8/2016)... ... February 08, 2016 , ... TopConsumerReviews.com recently awarded their highest five-star rating ... Moles are derived from a cluster of melanin when exposed to sunlight. Although most ... create a lifetime of embarrassment. Historically, mole removal has involved a painful, ...
(Date:2/8/2016)... CA (PRWEB) , ... February 08, 2016 , ... The ... held annually in this country. The AutismOne 2016 Conference, which is being held May ... they often won’t hear elsewhere about helpful interventions and causes of chronic illness in ...
(Date:2/7/2016)... Orion, Clarkston, Metamora, Michigan (PRWEB) , ... February 07, 2016 , ... ... Friday in recognition of National Wear Red Day. National Wear Red Day is ... and stroke in women. Heart disease and stroke cause 1 in 3 deaths among ...
Breaking Medicine News(10 mins):
(Date:2/8/2016)... , Feb. 8, 2016  Avista Pharma Solutions ... Eric Setzer as Chief Financial Officer (CFO). Mr. Setzer ... years of experience in various roles within growing technology ... he served as the Executive Director of Finance at ... Raleigh, NC . Previously, Mr. Setzer ...
(Date:2/8/2016)... DUBLIN , Feb. 8, 2016 /PRNewswire/ ... announced the addition of the "Label-Free ... Global Forecasts to 2020" report to ... has announced the addition of the ... - Global Forecasts to 2020" report ...
(Date:2/8/2016)... , Feb. 8, 2016  Unilife Corporation ("Unilife" or "Company") ... of injectable drug delivery systems, today announced that it will ... ended December 31, 2015 after market close on February 9, ... conference call to discuss these financial results.    ... --> About Unilife Corporation ...
Breaking Medicine Technology: