Vecchio F et al. · 2012
Researchers exposed 11 healthy adults to cell phone radiation for 45 minutes and measured their brain waves and reaction times during cognitive tasks. After exposure, participants showed altered brain wave patterns (alpha rhythms) and faster reaction times compared to a sham exposure session. The study suggests that cell phone radiation can measurably change brain activity and cognitive performance in healthy people.
Vecchio F et al. · 2012
Researchers exposed 10 epilepsy patients to mobile phone radiation for 45 minutes and measured their brain waves using EEG. They found that phone radiation significantly increased the synchronization of brain wave patterns between the left and right sides of the brain in these patients, compared to both normal controls and sham exposure conditions. This suggests people with epilepsy may be more vulnerable to mobile phone radiation effects on brain function.
Patruno A et al. · 2012
Researchers exposed THP-1 cells to a 50 Hz, 1 mT electromagnetic field for 24 hours, with or without LPS, to study effects on matrix metalloproteinases (MMPs) and their inhibitor TIMP-1. Exposure was associated with a reduction of antioxidant enzyme activity and an enhancement of nitrogen intermediates involving the iNOS pathway. The researchers analyzed the role of nitration of TIMP-1 in increasing the activity of MMPs in EMF-exposed cells, and molecular modeling identified at least two protein sites, Y120 and Y38 and/or Y72, as plausible targets. The results may suggest a pathway connecting an imbalance of MMPs and their cognate inhibitor TIMP-1.
Sadeghipour R et al. · 2012
Researchers investigated the effects of 100 and 217 Hz extremely low-frequency pulsed electromagnetic fields on cell proliferation, actin reorganization, and ROS generation in human breast carcinoma cells (T47D). Cells were exposed for 24-72 h, at 100 and 217 Hz, 0.1 mT. The treatment induced a time dependent decrease in cell growth after 72 h and revealed an increase in fluorescence intensity in cytoplasm and actin aggregations around the nucleus as detected by fluorescence microscopy. Exposure to 217 Hz for 72 hours caused a dramatic increase in intracellular ROS generation, while exposure to 100 Hz left ROS nearly unchanged.
Das S, Kumar S, Jain S, Avelev VD, Mathur R. · 2012
Researchers studied the effect of a 50 Hz, 17.96 μT magnetic field on rats after a hemisection injury of the T13 spinal cord, measuring locomotor function, motor responses to noxious stimuli, and neuronal excitability. Rats were divided into a sham-exposed group and a group exposed to the magnetic field for 2 hours per day for 6 weeks. The magnetic-field-exposed group showed a statistically significant improvement in BBB score over the sham control group, and bladder control was dramatically restored earlier than in the sham group. The researchers suggested that this magnetic field exposure promotes recovery of sensori-motor behavior including locomotion and bladder control in spinal-cord-injured rats.
Das S, Kumar S, Jain S, Avelev VD, Mathur R. · 2012
Researchers exposed rats with severe spinal cord injuries to extremely low-frequency magnetic fields (50 Hz at 17.96 μT) for 2 hours daily over 6 weeks. The magnetic field exposure significantly accelerated recovery of motor functions, bladder control, and pain responses compared to untreated injured rats. This suggests that specific EMF exposures might have therapeutic potential for spinal cord injury rehabilitation.
Unknown authors · 2012
Researchers studied the effect of an 8 mT, 50 Hz electromagnetic field on memory consolidation in adult male and female mice. Mice were randomly assigned to six groups of ten each, with experimental groups exposed to the field for 4 hours after learning, sham-exposed groups, and control groups. Memory consolidation was assessed Twenty-four hours later using step-down latency in a passive avoidance task, and exposure significantly decreased memory function in both sexes.
Chen G, Lu D, Chiang H, Leszczynski D, Xu Z · 2012
Researchers exposed yeast cells to both 50 Hz magnetic fields and 1800 MHz radiofrequency radiation to see if electromagnetic fields could change gene activity. They found that magnetic fields caused no confirmed gene changes, while radiofrequency exposure affected only 2-5 genes out of thousands tested. This suggests that EMF effects on basic cellular processes may be more limited than some studies indicate.
Legros A et al. · 2012
Researchers investigated the effects of a 60 Hz, 1,800 μT magnetic field on neurophysiological and neuromotor measures in humans, including EEG, standing balance, voluntary motor function, and physiological tremor. Results suggested a reduction of human standing balance and an increase of physiological tremor amplitude in the frequency range associated with central nervous system contribution, while no exposure effect appeared on EEG or voluntary motor control. The researchers concluded that 1 h of 60 Hz, 1,800 μT magnetic field exposure may modulate human involuntary motor control without being detected in cortical electrical activity.
Legros A et al. · 2012
Researchers exposed people to strong 60 Hz magnetic fields (like power lines emit) for one hour. The exposure impaired balance and increased hand tremor, even though brain waves stayed normal. This shows power-frequency fields can affect movement control in subtle ways.
Unknown authors · 2012
Indian researchers studied 50 electrical workers exposed to low-frequency electromagnetic fields from transformers and distribution stations, comparing them to 20 unexposed controls. They found significantly more chromosomal damage and genetic abnormalities in the electrical workers' blood cells, with damage increasing based on years of exposure. This suggests chronic occupational EMF exposure may increase genetic damage and cancer risk.
Huwiler SG et al · 2012
No changes in bacterial growth or culturable counts were observed for any of the magnetic field types. Gene expression analysis of 4,358 genes and 714 intergenic regions showed no statistically significant changes after exposures of 2.5 hours or 15 hours.
Unknown authors · 2012
Scientists exposed E. coli bacteria to 50 Hz magnetic fields (the same frequency as European power lines) at 1 mT strength for up to 15 hours. They found no changes in bacterial growth, survival, or gene expression across 4,358 genes tested. This suggests power line frequency magnetic fields don't affect basic cellular processes in this bacterial model.
Janać B, Selaković V, Rauš S, Radenović L, Zrnić M, Prolić Z · 2012
Researchers exposed gerbils to 50 Hz magnetic fields (the same frequency as power lines) for 7 days after inducing stroke-like brain damage. The magnetic field exposure significantly reduced the hyperactive behavior that normally occurs after brain injury, suggesting these fields may have protective effects on brain function.
Rauš S, Selaković V, Radenović L, Prolić Z, Janać B · 2012
Serbian researchers exposed gerbils to 50 Hz magnetic fields (the same frequency as power lines) for seven days after inducing stroke-like brain damage. The magnetic field exposure significantly reduced the hyperactive, erratic movement patterns that typically follow brain injury. This suggests power line frequency EMF may influence brain recovery processes after stroke.
Akpinar D, Ozturk N, Ozen S, Agar A, Yargicoglu P. · 2012
Researchers divided thirty female Wistar rats, aged 3 months, into three equal groups: a control group, a group exposed to electric fields at 12 kV/m, and a group exposed at 18 kV/m, with exposure applied for 14 days at 1 hour per day. Brain and retina oxidative stress markers were significantly increased in both exposed groups compared to the control group. Total antioxidant status levels were significantly decreased in both brain and retina in the exposed groups compared to the control group. All visual evoked potential components were significantly prolonged in rats exposed to electric fields compared to the control group.
Unknown authors · 2012
Researchers exposed Tuber borchii mycelium to a static magnetic field of 300 mT or an extremely low frequency magnetic field of 0.1 mT at 50 Hz for 1 h per day over three consecutive days. Gene expression and biochemical analyses were performed. ELF-MF exposure upregulated some genes involved in hyphal growth and increased the activity of many glycolytic enzymes. SMF exposure showed no differences in gene expression but increased the activities of glucose 6-phosphate dehydrogenase and hexokinase.
Shafiei SA et al. · 2012
Researchers exposed different parts of the brain to extremely low-frequency magnetic fields locally and investigated EEG power spectrum changes at the frequency of stimulation. EEG relative power spectrum was evaluated at 3, 5, 10, 17, and 45 Hz frequencies at T4, T3, F3, Cz, and F4 points, when those points were exposed to magnetic fields at similar frequencies and 100 μT intensity. EEG power did not change significantly at the frequency of stimulation, but significant changes were observed in different EEG bands.
Jin YB et al. · 2012
Researchers exposed mouse NIH3T3 and human WI-38 fibroblast cells to a 60 Hz, 1 mT magnetic field for 4 hours, with or without ionizing radiation, hydrogen peroxide, or c-Myc activation. Cells exposed to the magnetic field alone showed no significant difference in micronucleus frequency compared to unexposed cells. No synergistic effects were observed when the magnetic field was combined with ionizing radiation, hydrogen peroxide, or c-Myc activation.
Unknown authors · 2012
Seventeen pairs of male volunteers aged 20-30 were exposed to a 50 Hz electromagnetic field at 62.0 ± 7.1 μT for two hours or to a sham exposure at 0.21 ± 0.05 μT. The exposure sequence was repeated the next day and again six days later with a null exposure of 0.085 ± 0.01 μT replacing the sham. Researchers examined 16 genes previously reported to respond to ELF-EMF exposure using Illumina microarrays on pooled RNA samples. No genes or gene sets showed consistent response profiles to the repeated ELF-EMF exposures. A transient cortisol increase occurred at the onset of both exposure and sham on the first day, diminishing over subsequent sessions and attributed to protocol-related stress.
Unknown authors · 2012
Researchers exposed 17 young men to 50 Hz magnetic fields (the type from power lines) at 62 microT for 2 hours and analyzed their white blood cells for changes in gene expression. They found no consistent genetic changes from the EMF exposure, even when looking at 16 genes previously reported to respond to electromagnetic fields. The only stress response detected was from the experimental procedure itself, not the EMF exposure.
Unknown authors · 2012
Researchers exposed 17 male volunteers to 50 Hz electromagnetic fields (similar to power lines) for 2 hours and analyzed their white blood cell gene expression using advanced microarray technology. Despite examining 16 genes previously reported to respond to EMF exposure, no consistent changes were found. The only stress response detected was from the experimental procedure itself, not the EMF exposure.
Lee HJ, Jin YB, Lee JS, Choi JI, Lee JW, Myung SH, Lee YS. · 2012
NIH3T3 cells were exposed to a 60 Hz ELF-MF at 1 mT for 4 hours, alone or with ionizing radiation, hydrogen peroxide, or c-Myc overexpression. A 4 hour exposure to ELF-MF alone produced no cell transformation. ELF-MF exposure did not influence the transformation activity of ionizing radiation, hydrogen peroxide, or activated c-Myc, indicating no additive or synergistic effects.
Janać B et al. · 2012
Researchers investigated how extremely low frequency magnetic fields affected locomotion, stereotypy, and immobility in 3- and 10-month-old male Mongolian gerbils. The animals were continuously exposed to ELF-MF for seven days. In the younger gerbils, all three field strengths increased locomotion and stereotypy and decreased immobility. In the older gerbils, the lowest field strength decreased motor behavior, the middle strength produced a slight increase, and the highest strength produced a pronounced stimulation.
Janać B et al. · 2012
Researchers exposed young and older gerbils to power-line frequency magnetic fields for seven days. Both age groups showed significant behavioral changes, with younger animals becoming more active. The effects persisted three days after exposure ended, indicating potential lasting impacts on brain function.
