Impact of Oxidative Stress on Human Osteoblasts During Orthodontic Tooth Movement
Author Information
Author(s): Hosseini Samira, Diegelmann Julia, Folwaczny Matthias, Sabbagh Hisham, Otto Sven, Kakoschke Tamara Katharina, Wichelhaus Andrea, Baumert Uwe, Janjic Rankovic Mila, Canullo Luigi
Primary Institution: LMU University Hospital, LMU Munich
Hypothesis
The study investigates the effects of oxidative stress on mechanotransduction in human osteoblasts during orthodontic tooth movement.
Conclusion
Oxidative stress significantly impacts cellular behavior during orthodontic tooth movement, affecting gene expression related to inflammation, bone remodeling, autophagy, and apoptosis.
Supporting Evidence
- Oxidative stress is linked to periodontal disease and affects bone remodeling.
- Hydrogen peroxide was used to simulate oxidative stress in the study.
- Gene expression related to inflammation and bone remodeling was significantly altered by oxidative stress.
- Tensile strain increased the expression of inflammatory genes in osteoblasts.
- Cells exposed to oxidative stress showed different responses to mechanical tension compared to controls.
Takeaway
This study shows that oxidative stress can change how bone cells behave when teeth are moved, which might affect treatment outcomes for patients with gum disease.
Methodology
The study used an in vitro model with human osteoblasts exposed to hydrogen peroxide and mechanical tension to assess gene expression and cellular responses.
Limitations
The study is an in vitro simplification and does not account for the complexity of in vivo conditions, including interactions with other cell types and signaling molecules.
Participant Demographics
Cells were obtained from a male donor undergoing orthognathic surgery.
Statistical Information
P-Value
padj. < 0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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