Correlation study on mtDNA polymorphisms as potential risk factors in aggressive periodontitis by NGS

Area of Science:

• Genetics
• Periodontology
• Mitochondrial Biology

Background:

• Aggressive periodontitis pathogenesis is complex and not fully understood.
• The role of heredity in aggressive periodontitis requires further elucidation.
• Mitochondrial DNA (mtDNA) polymorphisms are increasingly recognized for their potential role in various diseases.

Purpose of the Study:

• To investigate the association between specific mitochondrial DNA polymorphisms and aggressive periodontitis.
• To utilize next-generation sequencing (NGS) for high-resolution analysis of mtDNA variations.
• To identify potential genetic markers for aggressive periodontitis in the Han Chinese population.

Main Methods:

• Analysis of mitochondrial DNA (mtDNA) from 97 aggressive periodontitis patients and 68 healthy controls.
• Next-generation sequencing (NGS) employed for comprehensive mtDNA sequencing.
• Statistical analysis including Chi-square tests and multivariate logistic regression to determine associations.

Main Results:

• Significant associations were found between aggressive periodontitis and eight mitochondrial polymorphisms.
• Specific polymorphisms like 8860G-10400C, 8701A, 12705C-10398A, 9540C, and 10873T-15043G showed significant associations (p < .005).
• Odds ratios indicated increased risk for aggressive periodontitis with these specific mtDNA variations.

Conclusions:

• This study is the first to employ NGS to link specific mtDNA polymorphisms to aggressive periodontitis.
• Identified polymorphisms (8860G-10400C, 8701A, 12705C-10398A, 9540C, 10873T-15043G) are associated with aggressive periodontitis in the Han Chinese.
• These findings contribute to understanding the genetic underpinnings of aggressive periodontitis.