Myocardial infarction risk is increased by periodontal pathobionts: a cross-sectional study

C Joshi, A Mezincescu, M Gunasekara, A Rudd, H Botchorichvili, S Sabir, C Dospinescu, A Noman, D Hogg, G Cherukara, D McLernon, K Hijazi, D Dawson

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Abstract

To establish the role of periodontal pathobionts as a risk factor for myocardial infarction, we examined the contribution of five periodontal pathobionts and their virulence genes’ expressions to myocardial injury (Troponin-I) and coronary artery disease burden (SYNTAX-I scores) using hierarchical linear regression. Pathobiont loads in subgingival-plaques and intra-coronary-thrombi were compared. Troponin-I release increased with one 16S rRNA gene copy/ng DNA of Porphyromonas gingivalis (β = 6.8×10-6, 95% CI = 1.1×10-7-2.1×10-5), one-fold increased expressions of fimA (β = 14.3, 95% CI = 1.5-27.1), bioF-3 (β = 7.8, 95% CI = 1.1-12.3), prtH (β = 1107.8, 95% CI = 235.6-2451.3), prtP (β = 6772.8, 95% CI = 2418.7-11126.9), ltxA (β = 1811.8, 95% CI = 217.1-3840.8), cdtB (β = 568.3, 95% CI = 113.4-1250.1), all p < 0.05. SYNTAX-I score increased with one 16S rRNA gene copy/ng DNA of Porphyromonas gingivalis (β = 3.8×10-9, 95% CI = 3.6×10-10-1.8×10-8), one-fold increased expressions of fimA (β = 1.2, 95% CI = 1.1-2.1), bioF-3 (β = 1.1, 95% CI = 1-5.2), prtP (β = 3, 95% CI = 1.3-4.6), ltxA (β = 1.5, 95% CI = 1.2-2.5), all p < 0.05. Within-subject Porphyromonas gingivalis and Tannerella forsythia from intra-coronary-thrombi and subgingival-plaques correlated (rho = 0.6, p < 0.05). Higher pathobiont load and/or upregulated virulence are risk factors for myocardial infarction.
Trial registration: ClinicalTrials.gov Identifier: NCT04719026
Original languageEnglish
Article number18608
JournalScientific Reports
Volume12
Issue number1
Early online date3 Nov 2022
DOIs
Publication statusPublished - Dec 2022

Keywords

  • Humans
  • Cross-Sectional Studies
  • RNA, Ribosomal, 16S/genetics
  • Troponin I
  • Porphyromonas gingivalis
  • Myocardial Infarction/epidemiology
  • DNA

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