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Updated: Jun 18, 2025

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Robust Ligature-Induced Model of Murine Periodontitis for the Evaluation of Oral Neutrophils
Published on: January 21, 2020
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No genetic association between sleep traits and periodontitis: A bidirectional two-sample Mendelian randomization
Xin Chen1, Zheng Cheng1, Junyu Xu1
1Department of Oral and Maxillofacial Surgery, Jiangyin People's Hospital Affiliated to Nantong University, Jiangsu, China.
Cranio : the Journal of Craniomandibular Practice
|July 30, 2024
Summary
This study found no genetic link between sleep traits and periodontitis risk. Bidirectional Mendelian randomization analysis revealed no significant causal relationship in either direction.
Area of Science:
- Genetics
- Sleep Medicine
- Periodontology
Background:
- Periodontitis is a common inflammatory disease affecting gums.
- Sleep disorders are prevalent and impact overall health.
- Understanding potential genetic links between these conditions is crucial.
Purpose of the Study:
- To investigate the potential bidirectional genetic relationship between various sleep traits and periodontitis.
- To determine if genetic predispositions to sleep problems increase periodontitis risk, or vice versa.
Main Methods:
- A two-sample bidirectional Mendelian randomization (MR) analysis was employed.
- Publicly available genome-wide association studies data for sleep traits (chronotype, daytime sleepiness, napping, insomnia, sleep duration, snoring, apnea-hypopnea index) and periodontitis were utilized.
Main Results:
- No significant genetic influence of sleep traits on periodontitis risk was observed.
- Similarly, periodontitis showed no significant genetic effect on sleep traits.
- Specific sleep traits like chronotype, insomnia, and AHI did not demonstrate a causal link to periodontitis.
Conclusions:
- The study provides no evidence for a bidirectional genetic relationship between sleep traits and periodontitis.
- Genetic factors influencing sleep do not appear to causally affect the risk of developing periodontitis, and vice versa.
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