Correlation between an interleukin-6 -572C/G polymorphism and chronic periodontitis

Area of Science:

• Genetics
• Periodontology
• Immunology

Background:

• Genetic variations in the interleukin-6 (IL-6) gene influence bone health and diseases.
• Chronic periodontitis is a prevalent inflammatory condition affecting the gums and supporting bone structures.

Purpose of the Study:

• To examine the association between the IL-6-572C/G gene polymorphism and the risk of developing chronic periodontitis.
• To investigate the role of IL-6 genetic variations in the Chinese Han population's susceptibility to periodontitis.

Main Methods:

• Genotyping of the IL-6-572C/G polymorphism using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP).
• Analysis of DNA samples from 93 chronic periodontitis patients and 96 healthy controls from the Chinese Han population.
• Statistical comparison of genotype and allele frequencies between patient and control groups.

Main Results:

• The IL-6-572 GG genotype and G allele were significantly more prevalent in chronic periodontitis patients compared to controls (P<.05).
• Individuals with the CG+GG genotype exhibited an increased odds ratio of 1.88 for chronic periodontitis compared to the CC genotype (95% CI, 1.04-3.40; P<.05).
• A significant difference in the frequency of the -572CG+GG genotype was observed between the chronic periodontitis group and the control group.

Conclusions:

• The IL-6-572C/G polymorphism is a potential genetic factor contributing to susceptibility to chronic periodontitis.
• This finding highlights the role of IL-6 genetic variations in the pathogenesis of periodontitis within the Chinese Han population.