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- W2765372502 abstract "Introduction: Periodontal Gram-negative bacteria and their products can initiate inflammatory responses in periodontal tissues with systemic consequences. They are associated with the pathogenesis of atherosclerosis and ischemic stroke. Local inflammation and oxidative stress play a crucial role in the pathophysiology of intracranial aneurysms (IAs). Under the hypothesis that the severity of periodontal disease is associated with the formation and rupture of IAs we assessed which periodontal pathogens contribute to the pathogenesis of IAs. Methods: We enrolled patients with ruptured- (n=5, age 60±11.9) and unruptured IAs (n=13, age 67±6.1) and controls without IAs (n=7, age 58±8.5); their prior informed consent was obtained. The severity of periodontitis was recorded using the community periodontal index (CPI) of the Treatment Needs code. Subgingival plaques (n=23) were evaluated with the quantitative real-time PCR assay to check for the Gram-negative bacteria Aggregatibacter actinomycetemcomitans (Aa), Fusobacterium nucleatum, Treponema denticola, Prevotella intermedia (Pi), Tannerella forsythia, and Porphyromonas gingivalis (Pg). Plasma IgG titers of antibody against Pg, Pi, Aa, and Eikenella corrodens were evaluated by ELISA. Results: The CPI was significantly higher in patients with IAs than the controls (2.7 vs 1.9, p<0.05) and their DNA level of subgingival plaques and their plasma IgG titers of Pg were also higher. Periodontal disease was more severe and the plasma IgG titers of Pg were higher in patients with ruptured- than unruptured IAs, suggesting that Pg is associated not only with the formation but also the rupture of IAs. Conclusions: We present evidence that severe periodontal disease and Pg infection may be involved in the pathophysiology of IAs. The management of periodontal diseases may help to prevent the formation and rupture of IAs." @default.
- W2765372502 created "2017-11-10" @default.
- W2765372502 creator A5048330836 @default.
- W2765372502 date "2016-02-01" @default.
- W2765372502 modified "2023-09-28" @default.
- W2765372502 title "Abstract TP85: Impact of Periodontal Disease and -Bacteria on Intracranial Aneurysms" @default.
- W2765372502 doi "https://doi.org/10.1161/str.47.suppl_1.tp85" @default.
- W2765372502 hasPublicationYear "2016" @default.
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