Şahin D et al. · 2016
Researchers exposed female rats to 3G mobile phone radiation (2100 MHz) for either 10 or 40 days to study DNA damage in brain tissue. They found increased DNA damage after 10 days of exposure, but surprisingly, this damage decreased after 40 days, suggesting the brain may develop protective mechanisms over time. The study used radiation levels similar to what you'd experience during heavy mobile phone use.
Kerimoğlu G et al. · 2016
Researchers exposed adolescent male rats to cell phone-level radiation (900 MHz) for one hour daily during their development and examined their hearts as adults. The exposed rats showed significant heart damage including increased oxidative stress, structural changes to heart muscle cells, and higher rates of cell death compared to unexposed controls. This suggests that EMF exposure during critical developmental periods may cause lasting cardiovascular damage.
Esmekaya MA et al. · 2016
Researchers studied whether cellular phone radiation affects oxidative stress and nitric oxide levels in mouse brain during epileptic seizures induced by pentylenetetrazole (PTZ). Eight-week-old mice were divided into groups: a PTZ-only control group, a group exposed to 15 minutes of radiation before and 30 minutes after PTZ treatment, and a group exposed to 30 minutes of radiation before and 30 minutes after PTZ treatment. Lipid peroxidation and nitric oxide levels increased significantly in the radiation-exposed groups compared to the control group, while glutathione levels were significantly lower in those same groups.
Yin C, Luo X, Duan Y, Duan W, Zhang H, He Y, Sun G, Sun X · 2016
Researchers investigated whether lotus seedpod procyanidins (LSPCs) could protect primary cultured rat hippocampal neurons from extremely low frequency electromagnetic field (ELF-EMF)-induced neurotoxicity. ELF-EMF exposure significantly decreased cell viability and increased the number of apoptotic cells compared with control. LSPCs evidently protected the hippocampal neurons against ELF-EMF-induced cell damage, and the researchers concluded this occurred through inhibiting oxidative stress and a mitochondrial apoptotic pathway.
Mahmoudinasab H, Sanie-Jahromi F, Saadat M · 2016
Researchers designed the study to evaluate the effect of EMFs on the mRNA levels of seven antioxidant genes in human MCF-7 cells. Three exposure patterns were tested at two field intensities, 0.25 mT and 0.50 mT, each with a total exposure time of 30 minutes. The MTT assay showed no cytotoxic effect on MCF-7 cells under any of the three exposure conditions at either field intensity. Under the 15-min-on/15-min-off pattern, the 0.50 mT intensity was associated with more up- or down-regulated genes than 0.25 mT, a statistically significant difference (P=0.041), while no such difference was found for the other two exposure patterns.
Kesari KK, Juutilainen J, Luukkonen J, Naarala J. · 2016
Wang LF et al. · 2016
Researchers exposed Wistar rats to microwave radiation at 30 mW/cm2 for 5 minutes per day, 5 days per week, over a period of 2 months. Screening of the GRIN2B promoter region revealed a stable C-to-T variant at nucleotide position −217 that was not induced by microwave exposure. Following microwave exposure, NR2B protein expression decreased, while the Glu contents in the hippocampus and CSF increased, and memory impairment was observed in the TT genotype but not the CC and CT genotypes. In PC12 cells, the effects of the T allele were more pronounced than those of the C allele on transcription factor binding ability, transcriptional activity, NR2B mRNA, and protein expression.
Erdem Koç G et al. · 2016
Researchers established seven groups of pregnant rats and exposed some to 900 MHz EMF for 60 minutes per day during the gestation period. After birth, male rat pups were selected and the total number of pyramidal neurons in the hippocampal region was counted using the optical fractionator technique. The total number of pyramidal cells in the EMF group was significantly lower than in the control, sham, EMF plus melatonin, and EMF plus omega-3 groups. No difference was observed between any groups in terms of rats' body or brain weights.
Deshmukh PS et al. · 2016
Researchers exposed male Fischer rats to microwave radiation for 90 days at 900, 1800, and 2450 MHz to investigate effects on cognitive function, heat shock protein 70 (HSP70) levels, and DNA damage in the brain. Cognitive function was tested using the elevated plus maze and Morris water maze, HSP70 levels were measured by ELISA, and DNA damage was assessed using alkaline comet assay. The results suggest that low-level microwave exposure at these frequencies may lead to hazardous effects on the brain.
Engels S, N-L Schneider, N Lefeldt, et al. · 2015
This 2015 study examined how anthropogenic electromagnetic noise affects magnetic compass orientation in migratory birds. The research found that electromagnetic noise disrupts the birds' ability to use magnetic compass orientation for migration.
Yildirim et al. · 2015
Turkish researchers studied 1,031 men seeking fertility treatment to compare how cell phone use versus wireless internet affects sperm quality. They found that wireless internet use significantly reduced sperm motility (movement) and total motile sperm count, while cell phone use showed minimal impact. This suggests WiFi radiation may pose greater risks to male fertility than phone radiation.
Unknown authors · 2015
Turkish researchers exposed pregnant rats and their newborns to WiFi radiation (2.45 GHz) for one hour daily, five days per week from pregnancy through three weeks of age. The study found increased oxidative stress in both brain and liver tissue, with reduced antioxidant defenses including glutathione and vitamins A, C, and E. The brain appeared more vulnerable to damage than the liver in developing animals.
Sangün Ö, Dündar B, Çömlekçi S, Büyükgebiz A · 2015
This is a review article examining the effects of electromagnetic field (EMF) exposure on the endocrine system in children and adolescents. The authors discuss concerns about EMF impacts on thyroid function, adrenal hormones, glucose homeostasis, and melatonin levels, noting that while international guidelines lack definitive evidence of causality, a growing body of animal and computational studies suggests potential endocrine and metabolic effects from EMF exposure in developing organisms.
Yao L, Li Y, Knapp J, Smith P. · 2015
Researchers used electric fields to study how Schwann cells (nerve-supporting cells) migrate toward damaged areas in the nervous system. They found that these cells move toward the positive electrode when exposed to electric fields of 50-200 mV/mm, and stronger fields caused more directed movement. The study identified over 2,600 genes that changed expression during this electric field-guided migration.
Unknown authors · 2015
This 2015 study measured occupational exposure to extremely-low-frequency magnetic fields (ELF-MF) in 21 electric arc welders and assessed potential DNA damage using the comet assay on peripheral blood leukocytes. The results showed significantly decreased tail intensity and tail moment in exposed welders compared to 21 control subjects, suggesting reduced primary DNA damage, though the authors noted the small sample size and potential confounding effects from metal exposures like chromium and nickel.
Unknown authors · 2015
Researchers exposed pregnant mice and their offspring to power line frequency magnetic fields (50 Hz, 65 μT) from mid-pregnancy through weaning to study genetic damage. The study found slight DNA damage in blood cells only after maximum exposure, which disappeared after exposure ended, but magnetic fields appeared to affect how male reproductive cells responded to X-ray radiation.
Unknown authors · 2015
Researchers studied 142 workers at 132 kV electrical substations and compared them to 151 unexposed controls, measuring stress hormones, DNA damage, and cellular oxidative stress. Workers with higher EMF exposure showed elevated epinephrine (stress hormone) levels, increased DNA damage, and higher oxidative stress markers. The study suggests that occupational exposure to extremely low-frequency electromagnetic fields may affect the body's stress response and cellular health.
Unknown authors · 2015
Researchers exposed human skin cells (keratinocytes) to 50 Hz magnetic fields at 1 mT intensity and found the fields activated cellular growth pathways, specifically mTOR signaling. The study revealed that extremely low frequency EMF can trigger molecular changes that promote cell proliferation and affect wound healing processes.
Liu Y, Liu W-B, Liu K-J, Ao L, Cao J, Zhong JL, Liu J-Y · 2015
This 2015 study examined how extremely low-frequency electromagnetic fields (ELF-EMF) affect microRNA-mediated regulation of signaling pathways in GC-2 cells, a mouse-derived germ cell line. The research investigated molecular changes in cellular signaling mechanisms in response to ELF-EMF exposure.
Unknown authors · 2015
Researchers exposed mouse sperm cells to 50 Hz power line frequency electromagnetic fields at different intensities for 72 hours. They found that low-intensity exposure (1 mT) decreased DNA methylation while high-intensity exposure (3 mT) increased it, suggesting EMF can alter how genes are regulated in reproductive cells. These epigenetic changes could potentially affect sperm function and fertility.
Li Y, Wang X, Yao L · 2015
This study investigated how oligodendrocyte precursor cells (OPCs) respond to applied electric fields, finding that OPCs migrate toward the anode (positive electrode) with increased directedness at higher field strengths (50-200 mV/mm), while migration speed remained unchanged. Transcriptional analysis revealed that the mitogen-activated protein kinase pathway, which signals cell migration, was significantly upregulated at 200 mV/mm, suggesting electric fields can guide OPC migration through specific genetic mechanisms relevant to neural regeneration.
Unknown authors · 2015
Researchers exposed bone marrow stem cells from rats and mice to 50 Hz electromagnetic fields (the same frequency as power lines) for several days. The EMF exposure increased stem cell growth and boosted production of immune-signaling molecules. The study found these EMF-stimulated stem cells also enhanced the growth and movement of immune cells when their secretions were tested.
Bertea et al. · 2015
Italian researchers exposed Arabidopsis plants to artificially reversed Earth's magnetic field conditions using specialized coil systems. They found that reversing magnetic polarity significantly altered plant growth patterns and changed the expression of genes involved in stress response and antioxidant systems. This supports the theory that magnetic field reversals throughout Earth's history may have driven plant evolution.
Al-Huqail AA, Abdelhaliem E · 2015
Researchers exposed maize seedlings to extremely low frequency (ELF) electric fields for varying time periods and analyzed the genetic damage. They found significant changes to proteins, enzymes, and DNA structure, with the most severe damage occurring after 5 days of exposure. The study demonstrates that longer EMF exposure periods cause increasing genetic stress in plant cells.
Zheng F et al. · 2015
This cross-sectional study of 746 Chinese schoolchildren examined connections between mobile phone use and self-reported health symptoms. Researchers found that children using phones longer each day and for more years experienced significantly higher rates of fatigue, with those making longer daily calls nearly three times more likely to report exhaustion. The findings suggest that even in children, mobile phone exposure correlates with measurable wellness impacts.
