The proliferation rates of HT-1080 human fibrosarcoma cells can be accelerated or inhibited by weak static and extremely low frequency magnetic fields
Research
RF Safe Research Library
Jan 1, 2025
This in vitro study exposed HT-1080 human fibrosarcoma cells for 4 days to weak extremely low frequency magnetic fields (10 μT, 12–33 Hz) superimposed on a 45 μT static field. The authors report frequency- and amplitude-dependent increases or decreases in cell growth, including sharp inversions near 16.5 Hz with…
Microglial Response to Inflammatory Stimuli Under Electromagnetic Field Exposure.
Research
RF Safe Research Library
Jan 1, 2025
This in vitro study examined whether extremely low frequency EMF exposure alters responses of TNF-α-stimulated human microglial cells (HMC3). Cells exposed to 2.5 or 5 Hz EMF for 3 minutes showed increased survival under high TNF-α conditions and reduced migration compared with TNF-α treatment alone. EMF also…
A Swine Model of Traumatic Brain Injury: Effects of Neuronally Generated Electromagnetic Fields and Electromagnetic Field Stimulation on Traumatic Brain Injury-Related Changes.
Research
RF Safe Research Library
Jan 1, 2023
This animal feasibility study evaluated whether real-time measured, targeted sinusoidal EMF stimulation could normalize traumatic brain injury (TBI)-related changes in neuronally generated EMF patterns. In one Yucatan miniswine with controlled cortical impact, AI modeling distinguished pre-injury, post-injury, and…
High-specificity protection against radiation-induced bone loss by a pulsed electromagnetic field.
Research
RF Safe Research Library
Jan 1, 2022
This study reports a noninvasive pulsed-burst electromagnetic field (PEMF) approach intended to protect against radiotherapy-induced bone loss. A 15 Hz, 2 mT PEMF waveform is described as producing distinctive calcium oscillations in osteoblasts and inhibiting radiation-related bone loss while not affecting other…
The Time-Dependence of Three Different Modes of ELF-EMF Stimulation on LTP at Schaffer Collateral-CA1 Synapses.
Research
RF Safe Research Library
Jan 1, 2021
This animal ex vivo study tested whether short-term 15 Hz/2 mT ELF-EMF exposure alters LTP at rat hippocampal SC-CA1 synapses. Across sinusoidal, pulsed, and rhythm-pulsed modes, the authors report reduced LTP versus control, with greater inhibition at longer exposure durations (10–60 s). Sinusoidal stimulation…
Synergistic effect of electromagnetic fields and nanomagnetic particles on osteogenesis through calcium channels and p-ERK signaling.
Research
RF Safe Research Library
Jan 1, 2021
This in vitro and animal study evaluated whether extremely low frequency EMF exposure (1 mT, 45 Hz, 8 h/day) combined with Fe-based nanomagnetic particles enhances osteogenesis. The authors report no detectable cytotoxicity and increased osteogenic markers/proteins with combined NMP + EMF exposure, alongside…
Long-Term Study on the Effects of Housing C57BL/6NCrl Mice in Cages Equipped With Wireless Technology Generating Extremely Low-Intensity Electromagnetic Fields.
Research
RF Safe Research Library
Jan 1, 2019
This animal study characterized electromagnetic fields generated by digitally ventilated mouse cages with wireless monitoring technology and assessed clinicopathological outcomes over up to 1 year. DVC produced extremely low-intensity electric fields across a wide frequency range (5 Hz to 3 GHz). The authors report…
Effects of single and combined low frequency electromagnetic fields and simulated microgravity on gene expression of human mesenchymal stem cells during chondrogenesis.
Research
RF Safe Research Library
Jan 1, 2018
This in vitro study exposed human mesenchymal stem cell pellets undergoing chondrogenesis to simulated microgravity (SMG), low-frequency EMF (5 mT, 15 Hz), or both for 3 weeks. SMG significantly changed gene expression and reduced chondrogenic marker expression (including COL2A1). LF-EMF alone showed no…
Evaluation of Cytotoxic and Genotoxic Effects of Extremely Low-frequency Electromagnetic Field on Mesenchymal Stromal Cells.
Research
RF Safe Research Library
Jan 1, 2018
This in vitro study evaluated whether a therapeutic extremely low-frequency EMF exposure (5 Hz, 0.4 mT) causes cytotoxic or genotoxic effects in a human mesenchymal stromal cell line. Cells were exposed for 20 minutes per day, three times per week, for two weeks and assessed for viability, proliferation, and…
Effects of electromagnetic fields on bone loss in hyperthyroidism rat model.
Research
RF Safe Research Library
Jan 1, 2017
This animal study evaluated whether extremely low frequency EMF exposure affects bone loss in a levothyroxine-induced hyperthyroidism rat model. Rats exposed to 15 Hz/1 mT EMF plus levothyroxine showed improved bone mineral density, mechanical measures, and partially restored trabecular bone architecture compared…
Effect of electromagnetic fields on human osteoarthritic and non-osteoarthritic chondrocytes.
Research
RF Safe Research Library
Jan 1, 2017
This in vitro study exposed human osteoarthritic and non-osteoarthritic chondrocyte pellets to a sinusoidal 15 Hz electromagnetic field at 5 mT or 8 mT for 7 days. Under 5 mT, osteoarthritic chondrocytes showed increased expression of cartilage-related genes (COL2A1 and ACAN) compared with controls, while…
[Effects of 1.8 mT sinusoidal alternating electromagnetic fields of different frequencies on bone biomechanics of young rats].
Research
RF Safe Research Library
Jan 1, 2016
This randomized animal experiment exposed 32 young female rats to 1.8 mT sinusoidal alternating electromagnetic fields at 10, 25, or 40 Hz for 90 minutes per day. The 10 Hz and 40 Hz groups had higher BMD and improved femur and lumbar vertebra biomechanical properties compared with controls, and micro-CT suggested…
[Modulating effect of weak combined magnetic fields on duration of mealworm beetle Tenebrio molitor metamorphosis stage].
Research
RF Safe Research Library
Jan 1, 2014
This animal study reports that combined static (42 μT) and very weak alternating (250 nT) magnetic fields can modulate the duration of metamorphosis in Tenebrio molitor pupae depending on the alternating-field frequency. A shorter pupal stage was reported at 4.4 Hz, an inhibiting effect at 32.2 Hz, and no noticeable…
Effects of extremely low frequency electromagnetic fields on testes in guinea pig.
Research
RF Safe Research Library
Jan 1, 2007
This animal study exposed 36 adult male guinea pigs to extremely low frequency electromagnetic fields at 5 Hz or 50 Hz and compared testosterone and testes tissue outcomes with sham/control conditions. After 5 days, the authors report a significant decrease in testosterone in exposed groups versus controls. They also…