Calvente I et al. · 2015
Researchers used spot measurements to characterize outdoor radiofrequency electromagnetic fields in the frequency range 100kHz-6GHz around the dwellings of 123 families from the INMA-Granada birth cohort in Southern Spain. The arithmetic mean electric field was 195.79mV/m and the mean power density was 799.01µW/m(2), with median values of 148.80mV/m and 285.94µW/m(2) respectively. All recorded values were well below International Commission for Non-Ionizing Radiation Protection reference levels. Exposure levels varied widely among different areas or towns/villages and also among seasons.
Todorović D, Prolić Z, Petković B, Kalauzi A. · 2015
Researchers analyzed the bioelectrical activity of antennal lobe neurons in adult Morimus funereus beetles exposed to extremely low frequency magnetic fields of different waveforms and exposure durations. Sine wave magnetic fields did not change the reversibility factor of antennal lobe neuronal activity regardless of exposure duration, while square wave exposure for 10 and 15 minutes significantly changed the reversibility factors of the nearest neurons.
Legros A, Modolo J, Brown S, Roberston J, Thomas AW. · 2015
Researchers used functional MRI to look for changes in brain activation in human participants following exposure to a 60 Hz magnetic field. The study found significant changes in task-induced functional brain activation as a consequence of magnetic field exposure, but no impact on task performance. The researchers discussed the possibility that exposure at 60 Hz, 3000 μT may be capable of modulating cortical excitability via a modulation of synaptic plasticity processes.
Cheng Y et al. · 2015
Researchers examined the effects of extremely low-frequency electromagnetic fields on hippocampal neural progenitor cells cultured from embryonic and adult ischemic brains. Exposure to ELF-EMF at 50 Hz and 0.4 mT significantly enhanced proliferation in both embryonic and ischemic neural progenitor cells. Neuronal differentiation was also enhanced after 7 days of cumulative ELF-EMF exposure, while glial differentiation was not markedly influenced. The data suggest that ELF-EMF promotes neurogenesis of ischemic neural progenitor cells, possibly through the Akt pathway.
Yang ML, Ye ZM · 2015
Researchers exposed human osteosarcoma MG-63 cells to a 50 Hz, 1 mT extremely low frequency electromagnetic field (ELF-EMF) for 1, 2 and 3 hours in vitro. ELF-EMF decreased the viability of MG-63 cells, inhibited cell growth, induced cell apoptosis and increased the level of ROS significantly. The apoptosis rate declined significantly after treatment with ROS inhibitor NAC or p38MAPK inhibitor SB203580. The researchers concluded that increased ROS and p38MAPK activation may be involved in the mechanism.
Lewicka M et al. · 2015
Roggeveen S, van Os J, Lousberg R · 2015
Researchers investigated whether third generation mobile phone radiation peaks produce event-related potentials in the brain. Thirty-one healthy females took part in a single-blind, cross-over design where a 15 minute mobile phone exposure was compared to two 15 minute sham phone conditions. When the phone was placed at the ear, an enlarged cortical reactivity was found in the frontal and central cortical regions, but not when it was placed at the heart.
Roggeveen S, van Os J, Viechtbauer W, Lousberg R · 2015
Researchers investigated whether placement of a 3G dialing mobile phone causes direct changes in EEG activity compared to placement of a sham phone. Thirty-one healthy females each participated on two days, with the phone placed at the ear on one day and the chest on the other. Significant radiation effects were found for the alpha, slow beta, fast beta, and gamma bands, with ear placement showing significant results and chest placement not.
Lustenberger et al. · 2015
The study investigated how much variation exists between individuals and within the same individual in response to pulsed radiofrequency electromagnetic field exposure during sleep. The EEG analysis showed exposure-related increases in the delta-theta frequency range at several fronto-central electrodes, but no differences in the spindle frequency range. Reproducible within-subject effects on sleep spindle and delta-theta activity were not observed, and it remained unclear whether a biological trait of how subjects' brains react to RF EMF exists.
Ghosn R et al. · 2015
Researchers recorded resting EEG in 26 healthy young subjects under sham and real RF exposure conditions in a double-blind, counterbalanced, crossover design. Compared with the sham session, the exposure session showed a statistically significant decrease of alpha band spectral power during the closed-eyes condition. This effect persisted in the postexposure session, and no significant changes were detected in electrode impedance, salivary cortisol, or caffeine between conditions.
Danker-Hopfe H et al. · 2015
Researchers conducted a double-blind, randomized, sham-controlled cross-over study to examine whether electromagnetic fields from GSM 900 and WCDMA/UMTS devices affected sleep. Thirty healthy young men between 18 and 30 years old were each exposed three times per exposure condition while their sleep was recorded. The only consistent finding across individuals was an increase of stage R sleep under GSM 900 MHz exposure in 9 of 30 subjects and under WCDMA/UMTS exposure in 10 of 30 subjects.
Unknown authors · 2014
Researchers investigated the cytotoxicity and genotoxicity of gadolinium and the possible enhancing effect of ELF-EMF on gadolinium toxicity in cultured human lymphocytes using micronuclei assay, trypan blue dye exclusion, single cell gel electrophoresis, and apoptosis analyses. Isolated lymphocytes were exposed to 0.2-1.2 mM gadolinium only or in combination with a 60-Hz ELF-EMF of 0.8 mT field strength. Gadolinium exposure caused a concentration- and time-dependent decrease in cell viability and an increase in micronuclei frequency, single strand DNA breakage, apoptotic cell death, and ROS production. ELF-EMF exposure also increased cell death, micronuclei frequency, olive tail moment, and apoptosis induced by gadolinium treatment alone.
Unknown authors · 2014
Shi D, Zhu C, Lu R, Mao S, Qi Y · 2014
Unknown authors · 2014
Researchers exposed human fetal scleral fibroblasts to 50 Hz extremely low frequency electromagnetic fields at intensities of 0.1, 0.2, 0.5, and 1.0 mT for 6 to 48 h. The growth rate of the fibroblasts significantly decreased after 24 h of exposure to 0.2 mT. Messenger RNA expression of collagen type I decreased while matrix metalloproteinase-2 expression increased significantly. Protein expressions of collagen type I and MMP-2 were also significantly altered after exposure.
Unknown authors · 2014
Human stem cells possess memory, implying that all living human cells must have a memory system. The author suggests magnetite may be the best candidate for a universal memory molecule because it is Earth's most distributed magnetic material. Magnetite is found in the human brain, heart, liver, and spleen, and anomalous concentrations are associated with Alzheimer's disease. The author argues that the rapid speed and accuracy of the brain require memory to be governed by quantum mechanics.
Unknown authors · 2014
Researchers analyzed self-reported symptom data from 92 Victorian residents who registered adverse health effects from wireless smart meters on an Australian public website. The most frequently reported symptoms were insomnia, headaches, tinnitus, fatigue, cognitive disturbances, dysesthesias, and dizziness. The effects of these symptoms on people's lives were significant. The majority of cases did not report prior electromagnetic hypersensitivity syndrome, suggesting smart meters may have unique characteristics that lower symptom development thresholds.
Unknown authors · 2014
Researchers used multiple imputation and propensity score matching on a cohort of 140,356 singleton live births in Northwest England to address missing data and residual confounding. For each of five imputed datasets, 115 exposed women living within 50 meters of an ELF-EMF source were matched to 1150 unexposed women. After doubly robust adjustment, close proximity to an ELF-EMF source was associated with a 116 g reduction in birth weight (95% CI: -224 to -7 g), while no effect was seen for proximity within 100 meters.
Turner MC et al · 2014
Researchers estimated cumulative, average, maximum, and duration of occupational ELF exposure for lifetime and specific time windows before diagnosis using a job exposure matrix. Lifetime cumulative ELF exposure was not associated with glioma or meningioma risk, but cumulative exposure 1 to 4 years before diagnosis showed a positive association with glioma (OR 1.67 for highest vs lowest exposure) and a weaker association with meningioma (OR 1.23).
Calvente I et al · 2014
The study sample was drawn from the INMA-Granada cohort, and researchers carried out long-term indoor measurements in the living room and bedroom of 123 families. Daytime electric fields were below the quantification limit in 78.6% of homes with a mean of 7.31 V/m, and magnetic fields were below the limit in 92.3% of homes with a mean of 162.30 nT. Mean magnetic field values were 1.6 lower during the night than the day. Exposure levels varied by area of residence, dwelling type, age, floor, and season. The authors concluded that preventive measures are warranted to reduce children's exposure.
Liorni I et al · 2014
Numerical computations were performed on high-resolution pregnant models at 3, 7, and 9 months of gestational age. Fetal whole-body and tissue-specific induced electric fields and current densities were analyzed as a function of magnetic field polarization and gestational age. The study also analyzed induced field variation due to changes in fetal position and calculated uncertainty from grid resolution.
Unknown authors · 2014
The CERENAT study was a multicenter case-control study conducted in four areas of France from 2004 to 2006. It analyzed 253 gliomas, 194 meningiomas, and 892 matched controls selected from electoral rolls. Regular mobile phone users showed no increased risk of brain tumours compared with non-users (OR=1.24 for gliomas, OR=0.90 for meningiomas). In the heaviest users with at least 896 hours cumulative use, odds of glioma (OR=2.89) and meningioma (OR=2.57) were significantly higher, and for gliomas, at least 18,360 calls gave an OR of 2.10.
Unknown authors · 2014
Researchers investigated whether radiofrequency radiation from a GSM mobile phone could alter the accuracy of home blood glucose monitors. Forty-five female nondiabetic students aged 17 to 20 years old participated in the study. The magnitude of changes between glucose readings was 1.07 ± 0.88 mg/dl in the group tested without electromagnetic fields, compared with 7.53 ± 4.76 mg/dl in the group tested while a GSM phone was ringing (P < 0.001).
Sadetzki S et al · 2014
MOBI-Kids is a multinational case–control study investigating the potential effects of childhood and adolescent exposure to EMF from mobile communications technologies on brain tumor risk in 14 countries. The study aims to include approximately 1,000 brain tumor cases aged 10–24 years and two individually matched controls for each case. The researchers conclude that MOBI-Kids is feasible and will generate results contributing to understanding potential brain tumor risks from mobile phone use among young people.
Unknown authors · 2014
The article was published in Altern Ther Health Med in 2014. The title proposed that excessive radiofrequency electromagnetic field exposure may cause electrohypersensitivity.
