einstein (São Paulo). 26/fev/2024;22:eAO0396.

New immunological aspects of peri-implantitis

Bárbara Bellocchio , Guilherme Oliveira , Taíssa Cássia de Souza , Thiago Lima , Virmondes Rodrigues , Denise Bertulucci Rocha , Juliana Barbosa de , Rodrigo César , Sanívia Aparecida de Lima

DOI: 10.31744/einstein_journal/2024AO0396

Highlights

Higher levels of HIF-1α in patients with peri-implantitis occurred possibly due to persistent hypoxia triggered by inflammation.
Tissue hypoxia in peri-implantitis induced increase in HIF-1α consequently increased VEGF and angiogenesis, contributing to the persistence of inflammation.

ABSTRACT

Objective:

This study aimed to compare the levels of HIF1-α, VEGF, TNF-α, and IL-10 in the periimplant crevicular fluid of patients with and without peri-implantitis.

Methods:

Forty patients, comprising 16 with and 24 without peri-implantitis were selected.

Results:

Patients with peri-implantitis exhibited significantly higher HIF-1α levels than those without peri-implantitis (p=0.0005). TNF-α revealed significant positive correlations with IL-10 (p=0.0008) and VEGF (p=0.0246), whereas HIF-1α and IL-10 levels (p=0.0041) demonstrated a negative and significative correlation in the peri-implantitis group.

Conclusion:

This study, for the first time demonstrates the balance of HIF-1α, TNFα, IL-10, and VEGF in peri-implantitis. It shows an elevated HIF-1α levels in patients with peri-implantitis, which could have stemmed from persistent inflammation- triggered hypoxia. Furthermore, the positive correlation between TNF-α and VEGF suggests intensified proinflammatory activity in peri-implantitis. Nevertheless, further studies are essential to understand these immune dynamics in peri-implantitis.

 

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New immunological aspects of peri-implantitis
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