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Updated: Jun 1, 2026

Robust Ligature-Induced Model of Murine Periodontitis for the Evaluation of Oral Neutrophils
Published on: January 21, 2020
Alpha-1-antitrypsin deficiency and periodontitis, a pilot study.
Viveca Wallin-Bengtsson1, Eeva Piitulainen, Kristina Hamberg
1Periodontology, Public Dental Health Sciences, Kristianstad, Sweden.
Alpha-1-antitrypsin deficiency (AATD) did not alter periodontal health or GCF elastase levels. This study found no significant differences in periodontal parameters or elastase in gingival crevicular fluid (GCF) between AATD and normal AAT individuals.
Area of Science:
- Periodontology
- Pulmonology
- Genetics
Background:
- Alpha-1-antitrypsin deficiency (AATD) is a genetic disorder that increases the risk of lung and liver diseases.
- The role of AATD in periodontal disease pathogenesis is not well understood.
- Gingival crevicular fluid (GCF) contains proteins like alpha-1-antitrypsin (AAT) and elastase, which may be relevant to periodontal health.
Purpose of the Study:
- To compare periodontal parameters and elastase levels in GCF between individuals with severe AATD (phenotype PiZZ) and healthy controls (phenotype PiMM).
- To investigate potential differences in GCF elastase activity in AATD subjects with and without chronic obstructive pulmonary disease (COPD).
Main Methods:
- The study included 30 subjects: 20 with severe AATD (10 with COPD, 10 asymptomatic) and 10 controls.
- Periodontal examination included Gingival Index (GI), Plaque Index (PlI), probing pocket depth (PPD), and radiography.
- GCF was collected for analysis of AAT concentration, elastase activity, and total protein content.
Main Results:
- No statistically significant differences were observed in GI, PlI, PPD, or radiographic findings between the groups.
- AAT levels in plasma and GCF were significantly lower in AATD subjects (groups 1 and 2) compared to controls (group 3).
- No significant differences in GCF elastase activity were found among the three groups.
Conclusions:
- Periodontal parameters and GCF elastase levels do not differ between individuals with severe AATD (PiZZ) and those with normal AAT levels (PiMM).
- AATD does not appear to directly influence periodontal inflammation or tissue destruction as measured by these parameters.
- Further research may be needed to explore other potential roles of AATD in oral health.
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