Periodontal pathogens in atheromatous plaque

Area of Science:

• Oral microbiology
• Cardiovascular research
• Periodontology

Background:

• Periodontal disease is increasingly linked to systemic conditions, notably heart disease.
• Gram-negative periodontal pathogens have been identified in atheromatous plaques.

Purpose of the Study:

• To investigate the association between periodontal health and coronary artery disease.
• To evaluate periodontal status and the presence of specific oral microorganisms in coronary atheromatous plaques.

Main Methods:

• A case-control study involving 7 patients with cardiovascular disease and 28 controls.
• Periodontal examinations and collection of atheromatous plaque samples during endarterectomy.
• Polymerase chain reaction (PCR) used to identify periodontal pathogens: Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, and Tannerella forsythia.

Main Results:

• Periodontal bacteria DNA was detected in both coronary atheromatous plaques and sub-gingival plaque samples.
• A correlation was established between bacteria contributing to atheromatous plaques and those associated with periodontal disease.

Conclusions:

• Findings suggest a link between oral bacteria and the development of coronary artery disease.
• Further research is warranted to explore the impact of periodontal disease prevention and treatment on coronary heart disease reduction.