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Bone turnover markers in serum and periodontal microenvironments
A N Wilson1, M J Schmid, D B Marx
1Department of Surgical Specialties, University of Nebraska Medical Center, College of Dentistry, Lincoln, Department of Biometry, University of Nebraska, Lincoln, NE 68583-0757, USA.
Journal of Periodontal Research
|June 28, 2003
Summary
This study developed a novel method to measure bone turnover markers directly from periodontal bone surfaces. Local bone turnover profiles, unlike serum, may help track disease progression and treatment response in periodontitis.
Area of Science:
- Periodontology
- Biochemistry
- Biomaterials
Background:
- Periodontitis significantly alters bone turnover.
- Accurate local measurement of bone turnover markers is challenging.
- Understanding local bone metabolism is crucial for effective periodontitis management.
Purpose of the Study:
- To develop a method for measuring multiple bone turnover markers from single periodontal bone surface samples.
- To compare local bone turnover marker ratios with serum and gingival crevicular fluid (GCF) measurements.
- To assess the feasibility of using these markers for site-specific assessments.
Main Methods:
- Developed a novel irrigating device to collect samples from periodontal bone surfaces (interproximal, vestibular cortical, and trabecular bone).
- Collected serum and GCF samples from 14 periodontitis patients.
- Analyzed samples for osteocalcin (OC), cross-linked N-telopeptide of type I collagen (NTx), and albumin (Alb) using RIA and ELISA.
Main Results:
- Ratios of bone turnover markers (OC/NTx, OC/Alb, NTx/Alb) varied significantly between serum, GCF, and different bone surface samples.
- Local bone microenvironment samples indicated substantial production of OC and NTx.
- Serum-derived bone turnover profiles differed from local periodontal bone and GCF profiles.
Conclusions:
- A novel irrigation system successfully harvested multiple bone turnover markers from periodontal bone microenvironments.
- Periodontal bone and GCF marker profiles differ from systemic (serum) profiles.
- This method shows potential for tracking site-specific responses to periodontitis and its treatment.