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Serum microRNAs and chronic periodontitis: A case-control study
Toshiki Yoneda1, Takaaki Tomofuji2, Daisuke Ekuni1
1Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
Objective:
An association is present between periodontitis and rates of expression of certain microRNAs (miRNAs) in periodontal tissue. However, the association between periodontitis and miRNA levels in human serum is unknown. We performed a case-control study in patients with chronic periodontitis to investigate serum miRNA levels.
Design:
We enrolled 30 healthy patients without periodontitis and 30 patients with chronic periodontitis. Participants underwent clinical examination, case selection, and a blood draw from the antecubital vein. Serum miRNA profiles were compared in samples from participants with and without chronic periodontitis using microarray and real-time PCR.
Results:
Microarray demonstrated seven miRNAs that were expressed <1/1.5 or >1.5 in the control group compared to the periodontitis group (p < 0.05). Real-time PCR showed that hsa-miR-664a-3p, hsa-miR-501-5p, and hsa-miR-21-3p were higher in the periodontitis group than the control group (p < 0.05).
Conclusion:
Hsa-miR-664a-3p, hsa-miR-501-5p, and hsa-miR-21-3p are candidate serum biomarkers for chronic periodontitis.
Insights
Researchers identified specific microRNAs (miRNAs) in the blood that may serve as biomarkers for chronic periodontitis. This study investigated serum miRNA levels in patients with and without periodontitis.
Area of Science:
- Oral biology
- Molecular diagnostics
- Biomarker discovery
Background:
- Periodontitis is linked to altered microRNA (miRNA) expression in periodontal tissues.
- The relationship between periodontitis and serum miRNA levels remains unexplored.
Purpose of the Study:
- To investigate serum microRNA (miRNA) levels in patients with chronic periodontitis.
- To identify potential serum biomarkers for periodontitis.
Main Methods:
- A case-control study involving 30 healthy individuals and 30 patients with chronic periodontitis.
- Serum samples analyzed using microarray and real-time PCR for miRNA profiling.
Main Results:
- Microarray analysis revealed seven differentially expressed miRNAs between groups (p < 0.05).
- Real-time PCR confirmed elevated levels of hsa-miR-664a-3p, hsa-miR-501-5p, and hsa-miR-21-3p in periodontitis patients (p < 0.05).
Conclusions:
- Hsa-miR-664a-3p, hsa-miR-501-5p, and hsa-miR-21-3p are potential serum biomarkers for chronic periodontitis.
- These miRNAs could aid in non-invasive diagnosis and monitoring of periodontitis.
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