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Updated: Nov 30, 2025

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Porphyromonas gingivalis and Its Systemic Impact: Current Status.

Feng Mei1,2, Mengru Xie1,2, Xiaofei Huang1,2

  • 1Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.

Pathogens (Basel, Switzerland)
|November 18, 2020
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Porphyromonas gingivalis, a key cause of periodontitis, is increasingly linked to systemic diseases like atherosclerosis and diabetes. Research highlights its role in various conditions, suggesting it

Keywords:
Porphyromonas gingivalisperiodontitissystemic diseases

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Area of Science:

  • Oral Microbiology
  • Periodontology
  • Systemic Health

Background:

  • Periodontitis is linked to systemic diseases, with Porphyromonas gingivalis identified as a primary oral pathogen.
  • The connection between Porphyromonas gingivalis and systemic conditions has gained significant attention.
  • While established links exist with atherosclerosis and diabetes, emerging research explores its role in other diseases.

Purpose of the Study:

  • To provide an overview of Porphyromonas gingivalis and its systemic impact.
  • To summarize epidemiological evidence and recent preclinical findings.
  • To discuss potential mechanisms linking Porphyromonas gingivalis to systemic diseases.

Main Methods:

  • Literature review of epidemiological studies.
  • Analysis of preclinical research on Porphyromonas gingivalis.
  • Synthesis of current knowledge on oral-systemic disease links.

Main Results:

  • Porphyromonas gingivalis is implicated in atherosclerosis, Alzheimer's disease, rheumatoid arthritis, diabetes, and adverse pregnancy outcomes.
  • Its role in respiratory diseases, nonalcoholic fatty liver disease, and depression is under investigation.
  • Evidence suggests Porphyromonas gingivalis influences systemic health through various mechanisms.

Conclusions:

  • Porphyromonas gingivalis is a significant factor in periodontitis with demonstrable systemic effects.
  • The bacterium is increasingly recognized as a modifiable risk factor for multiple systemic diseases.
  • Further research is needed to fully elucidate the mechanisms and extent of its systemic impact.