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Porphyromonas gingivalis as a Model Organism for Assessing Interaction of Anaerobic Bacteria with Host Cells
Published on: December 17, 2015
Lysozyme and microbiota in relation to gingivitis and periodontitis
Algimantas Surna1, Ricardas Kubilius, Jurgina Sakalauskiene
1Department of Dental and Maxillofacial Orthopedics, Kaunas University of Medicine, Lithuania. surna@dent.kmu.lt
Summary
Lysozyme levels in gingival crevicular fluid and saliva correlate with periodontal disease. Specific bacteria in plaque indicate inflammatory periodontal disease development, aiding diagnosis.
Area of Science:
- Oral microbiology
- Immunology
- Periodontology
Background:
- Investigating the link between oral immune components and bacterial colonization in periodontal disease.
- Assessing lysozyme in gingival crevicular fluid and saliva in relation to periodontopathogenic bacteria.
Purpose of the Study:
- To examine the association between lysozyme levels and the presence of specific bacteria in patients with gingivitis and periodontitis.
- To determine the diagnostic potential of lysozyme and bacterial markers for periodontal disease.
Main Methods:
- Collected gingival crevicular fluid, unstimulated saliva, and plaque samples from patients with gingivitis, periodontitis, and healthy controls.
- Measured lysozyme activity spectrophotometrically and identified 6 key periodontopathogenic bacteria using the micro-IDent plus assay.
Main Results:
- Lysozyme activity was higher in crevicular fluid but lower in saliva of patients with gingivitis/periodontitis compared to healthy donors.
- Specific bacteria (Peptostreptococcus micros, Fusobacterium periodontium, Campylobacter rectus, Eubacterium nodatum, Eikenella corrodens) were significantly associated with disease states.
Conclusions:
- Lysozyme levels in crevicular fluid and saliva strongly correlate with periodontal pocket depth.
- The identified bacteria serve as important indicators for the development of inflammatory periodontal disease.
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