Gene Expression in Periodontal Tissues After Treatment
Author Information
Author(s): Beikler Thomas, Peters Ulrike, Prior Karola, Eisenacher Martin, Flemmig Thomas F
Primary Institution: Department of Periodontics, University of Washington, Seattle, USA
Hypothesis
The study aims to determine the expression profiles of immune and inflammatory genes in periodontal tissues from sites with severe chronic periodontitis following periodontal therapy.
Conclusion
Gene expression profiles found in periodontal tissues following therapy indicate activation of pathways that regulate tissue damage and repair.
Supporting Evidence
- Non-surgical periodontal therapy resulted in a significant reduction of pocket probing depths and bleeding on probing.
- The expression of inflammatory and immune related genes was downregulated compared to healthy controls.
- Up-regulated genes are associated with the activation of tissue repair mechanisms.
Takeaway
Doctors studied the genes in the gums of people with gum disease after they got treatment to see how the treatment helped heal their gums.
Methodology
Gingival biopsies were taken from 12 patients with severe chronic periodontitis and 11 healthy controls, followed by gene expression profiling using a microarray system.
Potential Biases
The cellular source of the observed expression patterns is unclear and could reflect a different cellular composition of the tissues analyzed.
Limitations
The study is based on a relatively low number of specimens, which warrants cautious interpretation.
Participant Demographics
{"patients":{"number":12,"age":{"mean":46.6,"sd":11.7},"females":6,"smokers":4},"controls":{"number":11,"age":{"mean":38.5,"sd":5.6},"females":7,"smokers":3}}
Statistical Information
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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