Researchers Find Association Between Epstein-Barr Virus, Inflammatory Diseases of the Mouth

Article

PORTLAND, Ore. — Researchers at Oregon Health & Science University's School of Dentistry have found that a significant percentage of dental patients with the inflammatory diseases irreversible pulpitis and apical periodontitis also have the Epstein-Barr virus. The Epstein-Barr virus is an important human pathogen found in more than 90 percent of the world population. It is associated with many diseases, including infectious mononucleosis, malignant lymphomas, and naspharyngeal carcinoma.

The findings are published online in the Journal of Endodontics. The study also is expected to be published in the December 2008 (Vol. 34, No. 12) issue of the Journal of Endodontics.

Although the number of studies examining the role of herpesviruses in oral disease has been increasing, the majority of studies have focused on periodontitis, with no systematic attempt to examine herpesvirus in endodontic patients with varying inflammatory diseases. The OHSU study assessed the presence of human cytomegalovirus (HCMV), Epstein-Barr virus (EPV), herpes simplex virus (HSV-1), and Varicella zoster virus (VZV) in 82 endodontic patients, including patients with irreversible pulpitis and apical periodontitis, and compared them with 19 healthy patients. The goal of the study was to determine the potential association of herpesvirus with clinical symptoms, including acute pain and size of radiographic bone destruction.

Using a variety of methods, the OHSU team found the Epstein-Barr virus DNA and RNA in significantly higher percentages (43.9 percent and 25.6 percent respectively) compared with healthy patients (0 percent). Human cytomegalovirus DNA and RNA were found in measurable numbers in both endodontic patients (15.9 percent and 29.3 percent respectively) and in healthy patients (42.1 percent and 10.5 percent respectively). Herpes simplex virus DNA was found in low percentages of endodontic patients (13.4 percent) and only one patient showed the presence of Varicella zoster virus.

While a previous study examined the incidence of herpes viruses in apical periodontitis, "this is the first time irreversible pulpitis has been analyzed for the presence of herpes viruses and associated with Epstein-Barr virus," noted Curt Machida, PhD, OHSU professor of integrative biosciences and principal investigator, whose lab was host for the study. "The incidence of irreversible pulpitis and apical periodontitis, caused by bacteria and possibly the latent herpes virus, is painful and can greatly impair the body's natural immune system. Studies such as ours could someday lead to more effective treatments of inflammatory diseases of the mouth."

The OHSU team included Hong Li, DDS, MSc, PhD, a recent OHSU endodontology graduate; third-year OHSU dental student Vicky Chen, BS; second-year OHSU dental student Yanwen Chen, PhD; J. Craig Baumgartner, DDS, MSc, PhD, chairman of the OHSU endodontology department; and Machida.

The research at OHSU was funded by grants from the American Association of Endodontists Foundation, the Oregon Clinical and Translational Research Institute, the NIH's National Center for Research Resources, and the NIH Roadmap for Medical Research.

 

 

Recent Videos
Mark Wiencek, PhD
Rebecca Crapanzano-Sigafoos, DrPH, CIC, AL-CIP, FAPIC
The CDC’s updated hospital respiratory reporting requirement has added new layers of responsibility for infection preventionists. Karen Jones, MPH, RN, CIC, FAPIC, clinical program manager at Wolters Kluwer, breaks down what it means and how IPs can adapt.
Studying for the CIC using a digital tablet and computer (Adobe Stock 335828989 by NIKCOA)
Infection Control Today's Conversations with the HSPA President, Arlene Bush, CRCST, CER, CIS, SME, DSMD, CRMST
Infection Control Today's Conversations with the HSPA President, Arlene Bush, CRCST, CER, CIS, SME, DSMD, CRMST
Cheron Rojo, BS, FCS, CHL,  CER, CFER, CRCST
Matthias Tschoerner, Dr Sc
Standardizing Cleaning and Disinfection
Concept images of Far-UVC  (Adobe Stock 316993517 by hopenv)
Related Content