Related Experiment Videos
Osteopontin in gingival crevicular fluid
J Kido1, T Nakamura, Y Asahara
1Department of Periodontology and Endodontology, Tokushima University School of Dentistry, Japan. kido@dent.tokushima-u.ac.jp
Journal of Periodontal Research
|October 5, 2001
Summary
Osteopontin (OPN) is found in gingival crevicular fluid (GCF) and its levels increase with periodontal disease progression. This suggests OPN may serve as a marker for alveolar bone resorption.
Area of Science:
- Biochemistry
- Periodontology
- Biomarkers
Background:
- Osteopontin (OPN) is a key bone matrix phosphoprotein produced by various cells.
- OPN levels are elevated at sites of active bone metabolism.
- Gingival crevicular fluid (GCF) is being explored for markers of periodontal disease and alveolar bone resorption.
Purpose of the Study:
- To investigate the presence of Osteopontin (OPN) in gingival crevicular fluid (GCF).
- To determine the correlation between OPN levels in GCF and probing depth (PD) in periodontitis patients.
Main Methods:
- Immunoblotting analysis to detect OPN forms and fragments in GCF.
- ELISA to quantify OPN amounts in GCF samples.
- Comparison of OPN levels between periodontitis patients (PD > 4 mm) and healthy subjects (PD ≤ 3 mm).
Main Results:
- Two forms of OPN (54 and 66 kDa) and degraded fragments were detected in GCF from diseased sites.
- A single 54 kDa OPN form was observed in GCF from healthy sites, without fragments.
- A significant positive correlation was found between OPN levels in GCF and probing depth (PD).
Conclusions:
- Osteopontin (OPN) is present in gingival crevicular fluid (GCF).
- OPN levels in GCF increase with the progression of periodontal disease.
- OPN in GCF shows potential as a biomarker for alveolar bone resorption in periodontitis.