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Bone Bioelectricity and Bone-Cell Response to Electrical Stimulation: A Review
Taylor deVet1, Akiv Jhirad1, Laura Pravato1
1McMaster School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada.
Critical Reviews in Biomedical Engineering
|August 4, 2021
Summary
Bone cells may sense mechanical forces through electrical signals, leading to electrical stimulation (ES) for fracture repair. Further research is needed to understand cell responses to ES for improved bone health and medical implants.
Area of Science:
- Biomedical Engineering
- Cell Biology
- Skeletal Physiology
Background:
- Bone cells are hypothesized to detect mechanical forces via electrical signals.
- Electrical stimulation (ES) is used to enhance bone fracture repair and reduce bone loss.
- Osteocyte behavior in electrical environments remains poorly understood, despite their abundance.
Purpose of the Study:
- To investigate bone cell responses to various forms of electrical stimulation (ES) and mechanical stimuli.
- To clarify the role of electrical signaling in bone mechanotransduction.
- To identify factors influencing cellular reactions to ES for therapeutic applications.
Main Methods:
- Reviewing existing research on bone cell behavior under different ES parameters, cell types, and origins.
- Analyzing studies on mechanical stimulation via fluid flow in bone cells.
- Synthesizing data to understand cell responses in diverse electrical and mechanical environments.
Main Results:
- Significant variability in ES parameters, cell types, and origins complicates drawing firm conclusions.
- Dissimilar cellular behaviors observed in bone maintenance versus fracture healing processes.
- Limited understanding of osteocyte responses to electrical environments.
Conclusions:
- A comprehensive understanding of bone cell responses to ES is crucial for optimizing therapeutic strategies.
- Improved knowledge of the electrical bone cellular environment can enhance fracture healing and bone loss mitigation.
- Further research is needed to refine ES applications for osseointegration with medical implants.
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