Reale M et al. · 2014
Researchers exposed human brain cells to 50 Hz magnetic fields from household electricity and found they triggered harmful oxidative stress. The cells' natural defenses initially compensated, but failed when combined with other stressors, suggesting everyday EMF exposure may increase brain vulnerability to damage.
Sasaki K, Wake K, Watanabe S · 2014
Previous measurements of skin dielectric properties typically included all three skin layers together. This study provides new data for the epidermis and dermis measured in vitro from 0.5 GHz to 110 GHz. The results agreed with Gabriel's data for the dermis up to 20 GHz. For 20 to 100 GHz, experimental results showed larger values than extrapolated Gabriel data. For frequencies over 20 GHz, the parametric model tends toward the experimental results for the epidermis.
Komaki A, Khalili A, Salehi I, Shahidi S, Sarihi A. · 2014
Researchers exposed rats to 50Hz electromagnetic fields from power lines for 90 days and found enhanced brain connections in the hippocampus, the memory center. This suggests chronic exposure to everyday electrical fields may alter how our brains process and store information.
Unknown authors · 2014
Researchers exposed rats to 2.45 GHz wireless radiation (the same frequency as WiFi and microwave ovens) for one hour daily over 30 days and found it caused oxidative damage to testicles. When rats were given melatonin supplements alongside the radiation exposure, the antioxidant prevented most of the testicular damage. This suggests wireless radiation may harm male reproductive health through oxidative stress.
Unknown authors · 2014
Researchers exposed male rats to 2.45 GHz radiation (WiFi frequency) for one hour daily over 30 days and found it caused oxidative damage in testicular tissue. The study showed that melatonin supplementation prevented this damage by maintaining antioxidant levels. This suggests WiFi-frequency radiation may harm male reproductive health through oxidative stress mechanisms.
Ghazizadeh V, Nazıroğlu M · 2014
Ghazizadeh V, Nazıroğlu M. · 2014
Researchers exposed brain tissue from epileptic rats to Wi-Fi radiation for one hour. The exposure triggered harmful calcium buildup and cell death in brain regions controlling memory and pain. This suggests Wi-Fi may worsen neurological conditions by disrupting normal brain cell function.
Li Y, Yan X, Liu J, Li L, Hu X, Sun H, Tian J. · 2014
Researchers examined the effects of pulsed electromagnetic field (PEMF) exposure on brain-derived neurotrophic factor (BDNF) gene expression in cultured dorsal root ganglion neurons from neonatal rats. Exposure to 50 Hz and 1 mT PEMF for 2 hours increased both intracellular free calcium levels and Bdnf mRNA expression. The increase in calcium was found to come from influx through L-type voltage-gated calcium channels, while calcium mobilization from internal stores was not involved. Blocking the Erk signaling pathway strongly inhibited PEMF-related Erk1/2 activation and BDNF expression, indicating that Erk activation was required for PEMF-induced BDNF upregulation.
Shahin S, Mishra V, Singh SP, Chaturvedi CM. · 2014
Researchers exposed twelve-week-old male Swiss strain mice to 2.45-GHz microwave radiation for 2 hours per day for 30 days at a power density of 0.029812 mW/cm2 and SAR of 0.018 W/Kg. Microwave irradiation induced a significant decrease in sperm count and sperm viability, along with a decrease in seminiferous tubule diameter and degeneration of seminiferous tubules. Reduced testicular 3β HSD activity and plasma testosterone levels were also observed in the exposed mice. The researchers suggested that chronic exposure to nonionizing microwave radiation may lead to infertility via a free radical species-mediated pathway.
Shahin S, Mishra V, Singh SP, Chaturvedi CM · 2014
Researchers exposed male mice to 2.45-GHz microwave radiation (the same frequency used by Wi-Fi and microwaves) for 2 hours daily over 30 days at very low power levels. The exposed mice showed significant decreases in sperm count and viability, reduced testosterone levels, and damaged reproductive tissue. The study suggests these effects occur through oxidative stress, where radiation generates harmful free radicals that damage cells.
Ma Q et al · 2014
Researchers exposed primary cultured embryonic neural stem cells to 50 Hz ELF-EMF at various magnetic intensities and exposure times. Cell proliferation showed no significant change across multiple assays including viability, DNA synthesis, neurosphere size, cell cycle, and cell-cycle gene transcripts. During differentiation, 50 Hz ELF-EMF at 2 mT for 3 days down-regulated Sox2 and up-regulated Math1, Math3, Ngn1, and Tuj1 mRNA levels. However, the percentages of neurons and astrocytes did not change as measured by immunofluorescence.
Rauš Balind S, Selaković V, Radenović L, Prolić Z, Janać B · 2014
Researchers exposed gerbils to power line frequency magnetic fields after stroke-like brain damage. The magnetic field exposure helped reduce brain oxidative stress caused by the stroke, with stress levels returning nearly to normal by day 14, suggesting potential protective effects against brain injury.
Saha S et al · 2014
X-ray exposure significantly increased DNA double-strand breaks and apoptosis in the embryonic neuronal stem cell compartment, with a linear dose response. DSB repair was delayed at doses below 50 mGy compared to 100 mGy. No significant induction of DSBs or apoptosis was observed after magnetic field exposure.
Rauš Balind S, Selaković V, Radenović L, Prolić Z, Janać B. · 2014
Researchers studied whether an extremely low frequency magnetic field (ELF-MF, 50 Hz, 0.5 mT) affects oxidative stress in the brains of gerbils submitted to 10-min global cerebral ischemia. After occlusion of both carotid arteries, 3-month-old gerbils were continuously exposed to ELF-MF for 7 days, and oxidative stress markers were measured in the forebrain cortex, striatum and hippocampus. Ischemic gerbils exposed to ELF-MF showed increased oxidative stress on the 7th day after reperfusion, but to a lesser extent than ischemic or ELF-MF-exposed animals alone, and by the 14th day their oxidative stress parameters were mostly at control levels. The results indicate a beneficial effect of ELF-MF (50 Hz, 0.5 mT) in the model of global cerebral ischemia.
Gürler HS, Bilgici B, Akar AK, Tomak L, Bedir A. · 2014
Researchers studied oxidative damage and the protective effect of garlic in rats exposed to low-level electromagnetic fields at 2.45 GHz microwave radiation. Groups II and III were exposed to low-level EMF at 3.68 ± 0.36 V/m at 2.45 GHz for 1 hour/day for 30 consecutive days, with Group III also receiving 500 mg/kg garlic daily. Exposure increased 8-OHdG levels in both plasma and brain tissue and increased AOPP levels only in plasma, while garlic prevented the increase of 8-OHdG in brain tissue and AOPP in plasma.
Hatice Ş. Gürler et al. · 2014
Researchers exposed rats to WiFi-frequency radiation (2.45 GHz) for one hour daily over 30 days and measured damage to DNA and proteins in their brains. The radiation caused significant DNA damage in both brain tissue and blood, while also increasing harmful protein changes in the blood. Interestingly, rats given garlic supplements showed protection against these damaging effects.
Zhang Y, Liu X, Zhang J, Li N. · 2014
Researchers exposed 20 healthy male Sprague Dawley rats to 100 μT/50 Hz ELF-EMF or sham exposure for 12 weeks. The Morris water maze test showed no cognitive or memory impairment in the exposed rats compared to sham-exposed rats. Body weight, Aβ levels, and neuron morphology showed no significant changes between groups.
Choi YK, Lee DH, Seo YK, Jung H, Park JK, Cho H. · 2014
Researchers used PEG-phospholipid encapsulated magnetite nanoparticles on human bone marrow mesenchymal stem cells to improve intracellular uptake. Cell viability and intracellular iron content were measured after nanoparticle treatment. RT-PCR and immunohistological analysis with neural cell type-specific genes and antibodies were performed after electromagnetic field exposure. The results suggested that electromagnetic fields enhance neural differentiation in these cells and would be an effective method for differentiating neural cells.
Unknown authors · 2014
Human bone marrow-mesenchymal stem cells were exposed to ELF-EMF at 50 Hz and 1 mT for 8 days. The hBM-MSC derived neurons were then analyzed by immunofluorescence and quantitative RT-PCR. Researchers analyzed the transcriptome of neuronal cells after an 8-day ELF-EMF exposure (50 Hz, 1 mT) and compared the transcriptional profiles to control cells. Early growth response protein 1 (Egr1) is one of the key transcription factors in ELF-EMF-induced neuronal differentiation. Transplantations of ELF-EMF-induced neurons significantly alleviate symptoms in mouse models of neurodegenerative disease.
Unknown authors · 2014
Researchers exposed human bone marrow stem cells to 50 Hz electromagnetic fields (the same frequency as power lines) and found these fields triggered the cells to transform into neurons. The key discovery was that a specific protein called Egr1 controls this transformation process. When these EMF-induced neurons were transplanted into mice with brain diseases, the animals showed significant improvement.
Unknown authors · 2014
Researchers exposed human bone marrow stem cells to 50 Hz electromagnetic fields (the same frequency as power lines) at 1 milliTesla for 8 days and found the fields triggered the cells to develop into neurons. The study identified a specific protein called Egr1 that controls this transformation, and showed that transplanting these EMF-created neurons helped reduce symptoms in mice with neurodegenerative diseases.
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.
Liorni I et al · 2014
Italian researchers used computer models to calculate how 50 Hz magnetic fields (like those from power lines) create electric currents inside developing fetuses at 3, 7, and 9 months of pregnancy. They found that exposure levels stayed well below international safety guidelines, but the induced electric fields increased as fetuses grew larger and varied significantly based on fetal position and the direction of the magnetic field.
Manikonda PK et al. · 2014
Researchers exposed male Wistar rats to extremely low frequency magnetic fields at 50 Hz, at intensities of 50 and 100 µT, for 90 days continuously. The hippocampal, cerebellar and cortical regions of the brain were analyzed for reactive oxygen species, markers of oxidative stress, and antioxidant enzymes. Compared with control rats, exposed rats showed oxidative stress and altered glutathione levels in a dose-dependent manner across all brain regions.
Manikonda PK et al. · 2014
Researchers exposed young rats to 50 Hz magnetic fields from power lines for 90 days and found significant brain damage from oxidative stress. Higher magnetic field levels caused more harm across multiple brain regions, including areas controlling memory and movement, suggesting potential neurological effects.