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Periodontitis (PD) has been postulated to be a risk factor for the onset and progression of rheumatoid arthritis (RA). Recent reports suggest that infection with Porphyromonas gingivalis (P. gingivalis), a major oral pathogen in PD, could play a pivotal role in the development RA. The objective of this study is to examine the relationship of PD and P. gingivalis infection with the risk and severity of RA.
In this study, we will examine whether PD and P. gingivalis impact RA risk by enrolling 300 patients with RA and 300 comparator patients with osteoarthritis and comparing results from comprehensive dental examinations and antibody responses to P. gingivalis. We will examine whether these associations are modified by the presence of certain genetic risk factors previously implicated in RA and whether evidence of infection with P. gingivalis precedes RA onset by examining banked sera from the Department of Defense Serum Repository (DoDSR) and the Studies of the Etiology of RA (SERA). We also plan to explore whether there are novel proteins expressed by P. gingivalis that drive autoimmunity in RA and whether immune responses to these bacterial proteins predict the future development of RA.
Observational Model: Case Control, Time Perspective: Prospective
Omaha Veteran Medical Center
Not yet recruiting
University of Nebraska
Published on BioPortfolio: 2014-08-27T03:12:29-0400
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Arthritis in children, with onset before 16 years of age. The terms juvenile rheumatoid arthritis (JRA) and juvenile idiopathic arthritis (JIA) refer to classification systems for chronic arthritis in children. Only one subtype of juvenile arthritis (polyarticular-onset, rheumatoid factor-positive) clinically resembles adult rheumatoid arthritis and is considered its childhood equivalent.
Rheumatoid arthritis of children occurring in three major subtypes defined by the symptoms present during the first six months following onset: systemic-onset (Still's Disease, Juvenile-Onset), polyarticular-onset, and pauciarticular-onset. Adult-onset cases of Still's disease (STILL'S DISEASE, ADULT-ONSET) are also known. Only one subtype of juvenile rheumatoid arthritis (polyarticular-onset, rheumatoid factor-positive) clinically resembles adult rheumatoid arthritis and is considered its childhood equivalent.
A variable mixture of the mono- and disodium salts of gold thiomalic acid used mainly for its anti-inflammatory action in the treatment of rheumatoid arthritis. It is most effective in active progressive rheumatoid arthritis and of little or no value in the presence of extensive deformities or in the treatment of other forms of arthritis.
Systemic-onset rheumatoid arthritis in adults. It differs from classical rheumatoid arthritis in that it is more often marked by acute febrile onset, and generalized lymphadenopathy and hepatosplenomegaly are more prominent.
Antibodies found in adult RHEUMATOID ARTHRITIS patients that are directed against GAMMA-CHAIN IMMUNOGLOBULINS.
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