Moderate static magnetic fields prevent estrogen deficiency-induced bone loss: Evidence from ovariectomized mouse...

Area of Science:

• Biomedical Engineering
• Orthopedics
• Magnetic Field Therapy

Background:

• Postmenopausal osteoporosis (PMOP) is a prevalent condition with significant health implications.
• Static magnetic fields (SMFs) have demonstrated potential in regulating bone remodeling and inhibiting bone loss.
• Clinical evidence for SMF treatment of osteoporosis is currently lacking.

Purpose of the Study:

• To investigate the clinical therapeutic effects of moderate static magnetic fields (MMFs) on postmenopausal osteoporosis (PMOP).
• To evaluate the impact of MMFs on bone mineral density, bone turnover markers, and pain in PMOP patients.

Main Methods:

• Construction of a moderate static magnetic field (MMF) device using neodymium-iron-boron (NdFeB) materials.
• Animal studies using ovariectomized (OVX) mice to assess MMF effects on bone microstructure, mechanical properties, and bone turnover.
• A single-blind randomized controlled clinical trial involving PMOP patients (aged 55-70) comparing MMF treatment to a control group, with assessments at baseline and 90 days.

Main Results:

• MMF exposure significantly enhanced bone mineral density (BMD), bone mineral content (BMC), bone microarchitecture, and bone strength in OVX mice.
• In OVX mice, MMFs increased osteoblast numbers and serum P1NP (bone formation marker) while decreasing osteoclast numbers and serum β-CTX (bone resorption marker).
• Clinical results indicated MMF treatment improved lumbar spine BMD, increased serum P1NP, decreased β-CTX, and reduced low back pain (VAS scores) in PMOP patients.

Conclusions:

• Moderate static magnetic field (MMF) treatment effectively improved bone turnover, enhanced BMD, and alleviated low back pain in postmenopausal osteoporosis (PMOP) patients.
• The findings support the potential of MMFs as a therapeutic intervention for PMOP.
• This study paves the way for further translational research and clinical application of SMF therapy for osteoporosis.