Periodontal Disease and P. Gingivalis in Rheumatoid Arthritis
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.
|Study Design:||Observational Model: Case Control
Time Perspective: Prospective
|Official Title:||Periodontal Disease and P. Gingivalis in Rheumatoid Arthritis|
Blood specimens (serum, plasma and DNA)will be collected during a one time visit. Also bacterial samples will be collected from the gums of the subject's mouth.
|Study Start Date:||July 2010|
|Estimated Study Completion Date:||July 2013|
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.
|Contact: Debra A Bergman, MPHfirstname.lastname@example.org|
|Contact: Bart C Hamilton, BSemail@example.com|
|United States, Nebraska|
|Omaha Veteran Medical Center||Recruiting|
|Omaha, Nebraska, United States, 68105|
|Contact: Ted R Mikuls, MD, MSPH 402-559-7258 firstname.lastname@example.org|
|Principal Investigator: Ted R Mikuls, MD, MSPH|
|Principal Investigator:||Ted R Mikuls, MD, MSPH||University of Nebraska|