Archive

129 posts

Filters: category: ELF-EMF Clear

The effects of electromagnetic fields on B16-BL6 cells are dependent on their spatial and temporal character.

Research RF Safe Research Library Jan 1, 2017

This in vitro study tested several complex low-intensity, low-frequency EMF patterns on proliferation of B16-BL6 mouse melanoma cells. A specific pattern (Thomas-EMF) with a 3 ms point duration reportedly inhibited proliferation and increased calcium uptake, while other timing settings did not. The authors conclude…

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…

Combined effects of electromagnetic field and low-level laser increase proliferation and alter the morphology of human adipose tissue-derived mesenchymal stem cells.

Research RF Safe Research Library Jan 1, 2017

This in vitro study tested 50 Hz, 3 mT electromagnetic field (EMF) exposure and 808 nm low-level laser (LLL), alone and combined, on human adipose tissue-derived mesenchymal stem cells from six donors. The authors report increased cell numbers after 7 days with EMF, greater increases with LLL, and the largest…

Benign Effect of Extremely Low-Frequency Electromagnetic Field on Brain Plasticity Assessed by Nitric Oxide Metabolism during Poststroke Rehabilitation.

Research RF Safe Research Library Jan 1, 2017

This study assessed whether adding extremely low-frequency electromagnetic field (ELF-EMF) exposure to a 4-week poststroke rehabilitation program affects nitric oxide (NO)-related biomarkers and patient status. Forty-eight poststroke patients were assigned to ELF-EMF versus non-ELF-EMF rehabilitation, with the…

Influence of the on-line ELF-EMF stimulation on the electrophysiological properties of the rat hippocampal CA1 neurons in vitro.

Research RF Safe Research Library Jan 1, 2017

This paper describes an on-line ELF magnetic stimulation setup and evaluates coil field distribution using COMSOL simulations alongside physical measurements. The authors report that modeled and measured magnetic flux densities were similar, and that stimulation induced sodium channel currents and fEPSPs in rat…

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…

Rat adipose-derived mesenchymal stem cells aging reduction by zinc sulfate under extremely low frequency electromagnetic field exposure is associated with increased telomerase reverse transcriptase gene expression.

Research RF Safe Research Library Jan 1, 2017

This in vitro study exposed rat adipose-derived mesenchymal stem cells to 50 Hz, 20 mT ELF-EMF for 30 minutes per day over 21 days, with and without zinc sulfate. The authors report ELF-EMF exposure decreased TERT gene expression and increased senescent cells. Zinc sulfate was reported to increase TERT expression and…

Different profiles of the mRNA levels of DNA repair genes in MCF-7 and SH-SY5Y cells after treatment with combination of cisplatin, 50-Hz electromagnetic field and bleomycin.

Research RF Safe Research Library Jan 1, 2017

This in vitro study examined whether a 50-Hz, 0.50 mT intermittent electromagnetic field modifies responses to cisplatin and bleomycin in MCF-7 and SH-SY5Y cells. The authors report increased susceptibility in MCF-7 cells with EMF added to cisplatin+bleomycin, while SH-SY5Y susceptibility was unchanged. They also…

Vitamin C and Vitamin E Protected B and Balb/c-3T3 Cells from Apoptosis Induced by Intermittent 50Hz ELF-EMF Radiation.

Research RF Safe Research Library Jan 1, 2017

This in vitro study exposed B cells and Balb/c-3T3 cells to intermittent 50 Hz power-line ELF-EMF and assessed apoptosis. The authors report that preincubation with vitamin C or vitamin E reduced apoptosis compared with the exposed group. They conclude that vitamins C and E have protective effects, with stronger…

Effects of four kinds of electromagnetic fields (EMF) with different frequency spectrum bands on ovariectomized osteoporosis in mice.

Research RF Safe Research Library Jan 1, 2017

This animal study tested four frequency-band EMF exposures (1–50,000 Hz variants) in an ovariectomized mouse model of osteoporosis over 8 weeks (3 h/day). Low- and band-pass exposures increased bone formation markers and osteogenesis-related gene expression, while high-pass exposure decreased both formation and…

Enhancement of osteogenic differentiation of rat adipose tissue-derived mesenchymal stem cells by zinc sulphate under electromagnetic field via the PKA, ERK1/2 and Wnt/β-catenin signaling pathways.

Research RF Safe Research Library Jan 1, 2017

This in vitro study examined rat adipose-derived mesenchymal stem cells exposed to zinc sulphate in the presence of an ELF electromagnetic field (50 Hz, 20 mT). The authors report increased osteogenic differentiation markers (gene expression, ALP activity, and calcium levels) under combined ZnSO4+EMF conditions,…

Alterations of Immune Parameters on Trichoplusia ni (Lepidoptera: Noctuidae) Larvae Exposed to Extremely Low-Frequency Electromagnetic Fields.

Research RF Safe Research Library Jan 1, 2017

This animal study exposed Trichoplusia ni larvae to 60 Hz, 2.0 mT ELF-EMF for 24, 48, or 72 hours and assessed immune parameters and fertility. The abstract reports no effect on life cycle and fertility after 24 hours, but several immune-related measures changed after 48–72 hours, including reduced hemolymph protein…

Quantum mechanical model for the anticarcinogenic effect of extremely-low-frequency electromagnetic fields on early chemical hepatocarcinogenesis.

Research RF Safe Research Library Jan 1, 2017

This study develops a quantum-mechanical radical pair mechanism model to examine how an extremely-low-frequency electromagnetic field (ELF-EMF) might influence early chemical hepatocarcinogenesis in rats. The model evaluates singlet-state recombination and quantum yield under a low magnetic field effect, proposing…

Semi-quantitative proteomics of mammalian cells upon short-term exposure to non-ionizing electromagnetic fields.

Research RF Safe Research Library Jan 1, 2017

This in vitro study used proteome-wide semi-quantitative mass spectrometry to assess molecular changes after short-term exposure to ELF (50 Hz), UMTS (2.1 GHz), and WiFi (5.8 GHz) in human and mouse cell types. The authors report that fewer than 1% of quantified proteins changed slightly in abundance and that…

Efficacy of 50 Hz electromagnetic fields on human epidermal stem cell transplantation seeded in collagen sponge scaffolds for wound healing in a murine model.

Research RF Safe Research Library Jan 1, 2017

This animal study evaluated whether 50 Hz EMF exposure enhances wound healing after transplantation of human epidermal stem cells (ESC) seeded in collagen sponge scaffolds. Thirty-six nude mice with full-thickness wounds were assigned to control, ESC-only, or ESC+EMF groups (50 Hz, 5 mT, 60 min/day for 20 days). The…

Effects of extremely low frequency electromagnetic fields on in-vitro cellular cultures HeLa and CHO.

Research RF Safe Research Library Jan 1, 2016

This in-vitro study examined whether 50 Hz extremely low frequency electromagnetic fields affect proliferation in HeLa and CHO cell cultures. The abstract reports increased proliferation in exposed cells versus controls, with the largest reported increase under repetitive exposure at 2.49 mT (40 minutes every 12…

[Genic and non-genic regulation of low frequence pulsed electromagnetic fields on osteoblasts differentiation].

Research RF Safe Research Library Jan 1, 2016

This in vitro study exposed rat calvarial osteoblasts to 50 Hz, 0.6 mT pulsed electromagnetic fields for 1.5 hours and measured early differentiation-related markers over 0–12 hours. The abstract reports increased ALP activity at 3 hours and time-dependent changes in ALP, Runx2, and OSX transcription and Runx2/OSX…

[Influence of Low-Frequency Electromagnetic Field on DNA Molecules in Water Solutions].

Research RF Safe Research Library Jan 1, 2015

This in vitro study reports that hepatitis B and C virus DNA amplicons in water solutions produced a chemiluminescence-registered signal after exposure to low-frequency electromagnetic fields (3–30 Hz; 24–40 A/m). The strongest reported effect occurred at 9 Hz, alongside an observed change in the DNA hydration shell.…

Assessment of the neurotoxic potential of exposure to 50Hz extremely low frequency electromagnetic fields (ELF-EMF) in naïve and chemically stressed PC12 cells

Research RF Safe Research Library Jan 1, 2014

This in vitro study tested acute (30 min) and sub-chronic (48 h) 50 Hz ELF-EMF exposure up to 1000 µT in naïve and chemically stressed PC12 cells. Across assays of Ca2+ homeostasis, ROS production, and membrane integrity, the study reports no consistent or measurable neurotoxic effects under the tested conditions.…

Extremely Low Frequency Electromagnetic Field from Convective Air Warming System on Temperature Selection and Distance.

Research RF Safe Research Library Jan 1, 2014

This study measured extremely low frequency electromagnetic field (ELF-EMF) emitted by a convective air warming (forced air warmer) device at different temperature settings and distances. Reported ELF-EMF levels increased with closer proximity and higher temperature settings, with mean values around 18 mG at 30 cm.…

Cell hydration as a biomarker for estimation of biological effects of nonionizing radiation on cells and organisms.

Research RF Safe Research Library Jan 1, 2014

This comparative study examined how distilled water pretreated by different nonionizing radiation modalities (mechanical vibration/infrasound, static magnetic field, ELF EMF, and microwave) affected hydration of barley seeds in dormant versus germination periods. The authors report greater sensitivity of hydration to…

Optimization of a therapeutic electromagnetic field (EMF) to retard breast cancer tumor growth and vascularity.

Research RF Safe Research Library Jan 1, 2014

This animal study evaluated a therapeutic 120 Hz pulsed EMF device (10–20 mT) in C3H mice bearing implanted murine mammary adenocarcinoma tumors. Across seven treated groups, EMF exposure over 12 days was reported to suppress tumor growth, with specific dose/time regimens described as most effective. The authors also…

Effect of Extremely Low Frequency Electromagnetic Field and GABAA Receptors on Serum Testosterone Level of Male Rats.

Research RF Safe Research Library Jan 1, 2013

This animal experiment tested whether extremely low frequency electromagnetic field (ELF-EMF) exposure interacts with GABAA receptor modulation to affect serum testosterone in male rats. Rats were exposed for 30 days (8 hours/day) or sham exposed, then given saline, a GABAA antagonist (bicuculline), or a GABAA…

Effect of puerarin on matrix metalloproteinase-2 in human fetal scleral fibroblasts treated with low frequency electromagnetic fields.

Research RF Safe Research Library Jan 1, 2013

This in vitro study examined whether extremely low frequency electromagnetic field (ELF-EMF) exposure alters MMP-2 expression in cultured human fetal scleral fibroblasts and whether puerarin modifies this response. The authors report increased MMP-2 mRNA and protein expression after 0.2 mT ELF-EMF exposure for 24…

Effect of extremely low frequency electromagnetic field exposure on sleep quality in high voltage substations.

Research RF Safe Research Library Jan 1, 2012

This case-control study measured electric field intensity and magnetic flux density in high voltage substations and estimated workers' ELF-EMF exposure over a shift. Sleep quality was assessed using the PSQI in 67 exposed workers and 110 controls. The study reports no statistically significant difference in overall…

← Prev Page 5 / 6 Next →