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The Analgesic Effects of Static Magnetic Fields.
Yixiang Fan1,2, Xinmiao Ji1, Lei Zhang1
1High Magnetic Field Laboratory, Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China.
Bioelectromagnetics
|January 28, 2021
Summary
Static magnetic fields (SMFs) show promise for pain relief, with 64% of human studies and all mouse studies demonstrating positive analgesic effects. Optimal pain management may depend on SMF intensity, duration, and pain type.
Area of Science:
- Bioelectromagnetics
- Pain Management
- Medical Physics
Background:
- Pain is a prevalent reason for seeking medical care, often linked to various disease states.
- Magnetic fields (MFs) offer localized application with high penetration and temporal control, historically used in folk therapies.
- Static magnetic fields (SMFs) have a debated history regarding their therapeutic effects.
Purpose of the Study:
- To systematically review and analyze experimental data on the analgesic effects of static magnetic fields (SMFs).
- To establish a scientific understanding of SMFs' efficacy in pain relief.
- To identify factors influencing SMF effectiveness in pain management.
Main Methods:
- A comprehensive literature search was conducted to identify relevant studies.
- Included 28 studies (25 English, 3 Chinese) with sham controls, investigating SMF effects on pain in humans and mice.
- Analyzed data based on SMF intensity, treatment duration, and pain types.
Main Results:
- 64% of human studies and 100% of mouse studies reported positive analgesic effects from SMFs.
- Higher SMF intensity and/or longer treatment times correlated with enhanced pain relief.
- Specific pain types may respond better to SMF therapy.
- Potential involvement of membrane receptors (TRPV1, opioid, P2X3) was indicated.
Conclusions:
- Static magnetic fields (SMFs) demonstrate considerable promise for managing specific types of pain.
- Proper selection of SMF parameters (intensity, duration) is crucial for effective pain management.
- Further research is needed to comprehensively evaluate SMF parameters, effects on diverse pain types, and underlying molecular mechanisms to validate therapeutic potential.
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