Volume 40, Issue 6 pp. 591-598
Original Article

Detection of oral bacterial DNA in synovial fluid

Stefan Reichert

Corresponding Author

Stefan Reichert

University School of Dental Medicine, Department of Operative Dentistry and Periodontology, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany

Address:

Stefan Reichert

University School of Dental Medicine, Department of Operative Dentistry and Periodontology, Große Steinstrasse 19, D-06108 Halle (Saale)

E-mail: [email protected]

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Maximilian Haffner

Maximilian Haffner

University School of Dental Medicine, Department of Operative Dentistry and Periodontology, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany

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Gernot Keyßer

Gernot Keyßer

Clinic of Internal Medicine II, Martin-Luther University Halle-Wittenberg, Halle, Germany

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Christoph Schäfer

Christoph Schäfer

Clinic of Internal Medicine II, Martin-Luther University Halle-Wittenberg, Halle, Germany

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Jamal M. Stein

Jamal M. Stein

Department of Operative Dentistry, Periodontology and Preventive Dentistry, RWTH Aachen, Aachen, Germany

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Hans-Guenter Schaller

Hans-Guenter Schaller

University School of Dental Medicine, Department of Operative Dentistry and Periodontology, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany

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Andreas Wienke

Andreas Wienke

Institute for Medical Epidemiology, Biostatistics and Informatics, Martin-Luther University Halle-Wittenberg, Halle, Germany

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Heiko Strauss

Heiko Strauss

Institute for Forensic Medicine, Martin-Luther University Halle-Wittenberg, Halle, Germany

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Steffen Heide

Steffen Heide

Institute for Forensic Medicine, Martin-Luther University Halle-Wittenberg, Halle, Germany

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Susanne Schulz

Susanne Schulz

University School of Dental Medicine, Department of Operative Dentistry and Periodontology, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany

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First published: 05 March 2013
Citations: 93

Conflict of interest and source of funding statement:

The study was supported by the Martin-Luther University Halle-Wittenberg, Germany, University School of Dental Medicine, Department of Operative Dentistry and Periodontology and a grant from the “Deutsche Gesellschaft für Parodontologie (DGP)”. The authors declare that they have no conflict of interest.

Abstract

Objectives

As periodontal bacteria might be involved in the aetiology of rheumatic diseases, we analysed synovial fluid obtained from patients with rheumatoid arthritis (RA) and controls for the presence of DNA of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia, and Treponema denticola.

Methods

In all, 42 patients suffering from RA (mean age 53.8 ± 16.7 years, 40.4% females) and 114 controls with no rheumatic diseases (mean age 56.1 ± 15.2 years, 52.4% females) were included. DNA from synovial fluid was isolated by QiaAmp kit (Qiagen, Hilden, Germany). Polymerase chain reactions (PCRs) specific for the 16S rRNA genes of the above specified bacteria were developed. Subgingival bacterial colonization was analysed using micro-Ident® test (HAIN-Diagnostik, Nehren, Germany).

Results

In patients with RA DNA of P. gingivalis was detected in synovial fluid more often than in controls (15.7% versus 3.5%, p = 0.045). More patients than controls harboured DNA from P. gingivalis in both, oral plaque and synovial fluid (11.9% versus. 0.9%, p = 0.030). Among the patients group the number of missing teeth was correlated with the number of joints with movement restrictions caused by RA.

Conclusions

DNA of periodontopathogens can be found in synovial fluid and oral bacteria may play a role in the pathogenesis of arthritis.

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