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An open-label pilot study of pulsed electromagnetic field therapy in the treatment of failed back surgery syndrome pain.

Research RF Safe Research Library Jan 1, 2015

This open-label exploratory pilot study evaluated pulsed electromagnetic field therapy given twice daily for 45 days in 34 people with persistent or recurrent pain after back surgery. Among 30 per-protocol completers, 33% met a responder definition of ≥30% pain intensity reduction, and pain improvements were reported…

Effect of marination in gravy on the radio frequency and microwave processing properties of beef.

Research RF Safe Research Library Jan 1, 2015

This engineering/food science study measured dielectric constant (ε'), dielectric loss factor (ε″), and power penetration depth in beef and gravy preparations across 27–1,800 MHz and 20–130 °C. The dielectric properties generally decreased with increasing frequency, and penetration depth decreased with increasing…

Electromagnetic fields counteract IL-1β activity during chondrogenesis of bovine mesenchymal stem cells.

Research RF Safe Research Library Jan 1, 2015

This in vitro study examined whether electromagnetic fields (EMFs) influence chondrogenic differentiation of bovine mesenchymal stem cell pellets, with and without the inflammatory cytokine IL-1β. The authors report EMFs had limited effects on chondrogenesis in the absence of inflammation, but in the presence of…

The effects of different intensities, frequencies and exposure times of extremely low-frequency electromagnetic fields on the growth of Staphylococcus aureus and Escherichia coli O157:H7.

Research RF Safe Research Library Jan 1, 2015

This in vitro study examined whether extremely low-frequency electromagnetic fields (ELF-EMF) affect growth of Staphylococcus aureus and Escherichia coli O157:H7. Bacterial cultures were exposed to sinusoidal homogeneous ELF-EMF at 2 or 4 mT, with frequencies of 20, 40, or 50 Hz, for 1–6 hours, and CFU were compared…

Electromagnetic fields (UHF) increase voltage sensitivity of membrane ion channels; possible indication of cell phone effect on living cells.

Research RF Safe Research Library Jan 1, 2015

This in vitro study used voltage clamp recordings of single OmpF porin channels in an artificial bilayer to test effects of UHF EMF (910–990 MHz). The authors report frequency-dependent changes in channel gating, with increased gating frequency and voltage sensitivity and a maximum effect at 930 MHz. Conductance was…

Electromagnetic field exposure assessment in Europe radiofrequency fields (10 MHz-6 GHz).

Research RF Safe Research Library Jan 1, 2015

This paper provides an overview of published RF EMF exposure measurements in Europe and characterizes population exposure patterns. Across included spot and long-term measurement studies, reported mean electric field strengths were generally low (mostly

Experimental model for ELF-EMF exposure: Concern for human health.

Research RF Safe Research Library Jan 1, 2015

This in vitro study examined whether extremely low frequency EMF exposure alters MCP-1 expression in several human cell lines. Cells were exposed to a 50 Hz sinusoidal field at 1 mT (rms), and the authors report that MCP-1 expression was modified in a cell-type-dependent manner. The findings are described as…

Effects of a continuous electromagnetic field on wound healing in human airway.

Research RF Safe Research Library Jan 1, 2015

This in vitro study exposed BEAS-2B human bronchial epithelial cells to a 1.8-GHz continuous EMF at SAR 1.0 W/kg and assessed wound-healing related endpoints. EMF exposure decreased cell migration in a scratch assay compared with controls. The authors report no cytotoxicity, no inhibition of proliferation, and no…

The use of low-level electromagnetic fields to suppress atrial fibrillation.

Research RF Safe Research Library Jan 1, 2015

This animal study tested whether extremely low-level pulsed EMF (0.034 μG, 0.952 Hz) could suppress induced atrial fibrillation in 17 anesthetized dogs. EMF applied to cervical vagal trunks or across the chest was reported to suppress neural firing in the anterior right ganglionated plexi. The authors report that EMF…

Decreased survival of glioma patients with astrocytoma grade IV (glioblastoma multiforme) associated with long-term use of mobile and cordless phones

Research RF Safe Research Library Oct 16, 2014

This analysis examined survival among 1678 glioma patients from two case-control study periods (1997–2003 and 2007–2009) in relation to wireless phone use. In the >20 years latency group, the authors report increased hazard ratios for glioma overall and for astrocytoma grade IV (glioblastoma multiforme), with hazard…

Effects of extremely low frequency electromagnetic fields on paraoxonase serum activity and lipid peroxidation metabolites in rat

Research RF Safe Research Library Aug 13, 2014

This randomized animal experiment examined whether 60 Hz extremely low frequency magnetic field (ELF-MF) exposure alters oxidative stress-related biomarkers in 75 Wistar rats. The authors report increased lipid peroxidation markers after both single and 14-day exposures, alongside changes in antioxidant-related…

Effects of extremely low-frequency electric fields at different intensities and exposure durations on mismatch negativity

Research RF Safe Research Library Jul 11, 2014

This rat study examined whether 50-Hz extremely low-frequency electric fields at 12 or 18 kV/m for 2 or 4 weeks affect mismatch negativity (MMN) and markers of oxidative damage/apoptosis in brain tissue. MMN amplitude was reported to be significantly reduced only in the 18 kV/m, 4-week exposure group versus the…

Sleep quality and general health status of employees exposed to extremely low frequency magnetic fields in a petrochemical complex

Research RF Safe Research Library Apr 29, 2014

This cross-sectional study measured ELF magnetic flux density in a petrochemical complex substation environment and assessed workers' sleep quality (PSQI) and general health (GHQ). It reports significant differences between case and control groups, with more sleep disorder and poorer health status in the case group.…

Exposure to radio-frequency electromagnetic fields from broadcast transmitters and risk of childhood cancer: a census-based cohort study

Research RF Safe Research Library Apr 1, 2014

This census-based cohort study in Switzerland examined modeled RF-EMF exposure from broadcast transmitters and childhood cancer risk using two cohort approaches. Across analyses, no association was reported for all cancers or childhood leukemia. Findings for CNS tumors were inconsistent, and the incidence density…

RF Shielded Hat for Protecting Cameraman from EMF Exposure

Research RF Safe Research Library Jan 1, 2014

The paper describes the development of RF-shielded hats using a microwave absorbing sheet intended to reduce EMF exposure to a cameraman’s head. Three hat designs are described, and measurements are planned/performed in an anechoic chamber using a wireless video camera operating around 1.9–2.7 GHz, including a 2.45…

Distance from residence to power line and risk of childhood leukemia: a population-based case-control study in Denmark

Research RF Safe Research Library Jan 1, 2014

This population-based case-control study in Denmark examined whether distance from residence at birth to high-voltage overhead power lines was associated with childhood leukemia. Using GIS-based distance measures, the study did not find higher leukemia risk for children living within 0–199 m or 200–599 m of 132–400…

Association between mobile phone use and semen quality: a systemic review and meta-analysis

Research RF Safe Research Library Jan 1, 2014

This systematic review and meta-analysis assessed whether mobile phone use or radiofrequency exposure is associated with semen quality. Across included studies, the meta-analysis found no adverse effects in human studies, but reported detrimental effects on sperm motility and viability in vitro and harmful effects on…

Effect of mobile telephones on sperm quality: a systematic review and meta-analysis

Research RF Safe Research Library Jan 1, 2014

This 2014 systematic review and random-effects meta-analysis evaluated whether RF-EMR from mobile phones affects human sperm quality. Across 10 studies (1492 samples), exposure was associated with reduced sperm motility and reduced viability, while findings for sperm concentration were more equivocal. The abstract…

Impact of 900 MHz electromagnetic field exposure on main male reproductive hormone levels: a Rattus norvegicus model

Research RF Safe Research Library Jan 1, 2014

This animal experiment exposed 20 adult male Sprague-Dawley rats to 900 MHz RF-EMF for 1, 2, or 4 hours per day over 30 days, with a sham-exposed control group. Hormone levels (FSH, LH, inhibin B, activin B, prolactin, testosterone) were measured by ELISA before exposure and at 15 and 30 days. After 30 days, the long…

2.45-GHz microwave irradiation adversely affects reproductive function in male mouse, Mus musculus by inducing oxidative and nitrosative stress

Research RF Safe Research Library Jan 1, 2014

This animal study exposed 12-week-old male Swiss strain mice to non-thermal low-level 2.45-GHz microwave radiation for 2 hours per day over 30 days (SAR 0.018 W/kg). The abstract reports reduced sperm count and viability, testicular structural changes, lower 3β-HSD activity and plasma testosterone, and increased…

Electromagnetic radiation (Wi-Fi) and epilepsy induce calcium entry and apoptosis through activation of TRPV1 channel in hippocampus and dorsal root ganglion of rats

Research RF Safe Research Library Jan 1, 2014

This animal study examined 2.45 GHz Wi-Fi exposure in a PTZ-induced epilepsy rat model using freshly isolated hippocampal and DRG neurons. The authors report that epilepsy increased Ca(2+) influx, oxidative stress markers, and apoptosis-related outcomes, and that Wi-Fi exposure produced additional increases in…

Melatonin protects rat cerebellar granule cells against electromagnetic field-induced increases in Na(+) currents through intracellular Ca(2+) release

Research RF Safe Research Library Jan 1, 2014

This in vitro study examined extremely low-frequency electromagnetic field (ELF-EMF) effects on voltage-gated sodium (Nav) currents in rat cerebellar granule cells and whether melatonin modifies these effects. The abstract reports that 60 minutes of ELF-EMF exposure increased Nav current density, and that melatonin…

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.…

Occupational exposure to intermediate frequency and extremely low frequency magnetic fields among personnel working near electronic article surveillance systems

Research RF Safe Research Library Jan 1, 2014

This workplace measurement study assessed intermediate frequency (IF) and extremely low frequency (ELF) magnetic field exposure among cashiers working near electronic article surveillance (EAS) systems in Finnish stores. Typical seated exposures were reported as well below limits, but short-term exceedances of ICNIRP…

Occupational extremely low-frequency magnetic field exposure and selected cancer outcomes in a prospective Dutch cohort

Research RF Safe Research Library Jan 1, 2014

This prospective Dutch cohort (120,852 participants; 17.3 years follow-up) examined occupational ELF magnetic field exposure and incidence of several cancers. No associations were reported for lung, breast, or brain cancer across multiple exposure metrics. In men, high occupational exposure was associated with…

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