Abstract
Objective
Porphyromonas (P.) species (spp.) are a major etiological agent of apical periodontitis (AP), which in turn represents a risk factor for cardiovascular diseases. This study explored the associations between endodontic infection with Porphyromonas species, the systemic bacterial burden, and cardiovascular risk, based on high-sensitivity C-reactive protein (hsCRP), in young adults with AP.
Materials and methods
Cross-sectional study. Otherwise, healthy individuals with AP and controls (n = 80, ≤ 40 years) were recruited at the University Dental Clinic. Oral parameters and classic cardiovascular risk factors were registered. Endodontic Porphyromonas endodontalis and Porphyromonas gingivalis were identified using conventional PCR. Serum concentrations of anti-P. endodontalis and anti-P. gingivalis antibodies, and endotoxins were determined through ELISA and Limulus-amebocyte assays. Serum hsCRP was determined for cardiovascular risk stratification.
Results
Intracanal detection of P. endodontalis and P. gingivalis in AP were 33.3% and 22.9%, respectively. Serum anti-P. endodontalis and anti-P. gingivalis IgG was higher in AP than controls (p < 0.05 and p = 0.057, respectively). Intracanal P. endodontalis associated with higher endotoxemia (p < 0.05). Among endodontic factors, the presence (OR 4.2–5.5, p < 0.05) and the number of apical lesions (OR 2.3, p < 0.05) associated with moderate-severe cardiovascular risk, whereas anti-P. endodontalis IgG were protective (OR 0.3, p > 0.05).
Conclusions
AP and infection with P. endodontalis positively associated with cardiovascular risk based on hsCRP levels and endotoxemia, respectively, whereas anti-P. endodontalis IgG response seems to be protective against low-grade systemic inflammation.
Clinical relevance
Apical periodontitis and endodontic P. endodontalis can influence the systemic burden with impact on the surrogate cardiovascular risk marker hsCRP, providing mechanistic links.
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Acknowledgements
The authors thank Maria José Salas, Bernarda Parada, and Felipe Barragan for their valuable technical/clinical assistance.
Funding
The work was supported by the Chilean National Fund for Scientific and Technologic Development (FONDECYT; grants #1060741 and 1200098, M.H.), the Päivikki and Sakari Sohlberg Foundation (P.J.P.), the Sigrid Juselius Foundation (P.J.P.), the European Society of Endodontology (P.J.P.), and the Aarne Koskelo foundation.
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Jiménez, C., Garrido, M., Pussinen, P. et al. Systemic burden and cardiovascular risk to Porphyromonas species in apical periodontitis. Clin Oral Invest 26, 993–1001 (2022). https://doi.org/10.1007/s00784-021-04083-4
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DOI: https://doi.org/10.1007/s00784-021-04083-4