Hardell & Carlberg (2015) Increasing rates of brain tumours in the Swedish National Inpatient Register & the Causes of Death Register. Int J Envir Res Public Health. http://bit.ly/1aDHJm Devocht (2016) Inferring the 1985–2014 impact of mobile phone use on selected brain cancer subtypes using Bayesian structural time series and synthetic controls. Environ Int. http://bit.ly/2jJlbZu corrigendum (2017): http://bit.ly/2Cuq2nU Hardell & Carlberg (2017) Mobile phones et al. · 2015
This record appears to be a collection of related citations rather than a single study with an abstract. The titles suggest these studies examined associations between mobile phone and cordless phone use and brain tumor rates in Swedish populations, with analyses of temporal trends from the 1980s-2015 period across different age groups.
Morgan et al · 2015
This 2015 review by Morgan and colleagues analyzed existing research on mobile phone radiation and brain tumors, concluding that radiofrequency fields should be classified as a Group 2A 'probable' human carcinogen. The authors highlighted the French CERENAT study showing increased glioma risk from long-term mobile phone use and argued that current evidence meets the criteria for upgrading the cancer classification.
Spasić S, Kesić S, Stojadinović G, Petković B, Todorović D · 2015
This study examined how static magnetic fields (SMF, 2 mT) and extremely low frequency magnetic fields (ELF MF, 50 Hz, 2 mT) affect neuronal population activity in the antennal lobe of longhorn beetles (Morimus funereus) using wavelet analysis of local field potentials. The researchers found that prolonged ELF MF exposure produced irreversible changes in neural oscillations, including increased activity in the 4-8 Hz band and decreased activity in slower (1-2 Hz) and faster (64-128 Hz) frequency ranges, while SMF exposure did not produce detectable effects within the investigated timeframe.
Liu X et al. · 2015
This study exposed rats with Alzheimer's-like symptoms to 50 Hz electromagnetic fields (the same frequency as electrical power lines) for 60 days and found unexpected improvements in memory and reduced brain damage. The rats showed better performance in maze tests and less hippocampal deterioration compared to unexposed Alzheimer's rats. The findings suggest that under specific conditions, certain EMF exposures might influence neurodegenerative disease progression, though the mechanisms remain unclear.
Koeman T et al. · 2015
This large Dutch study tracked over 1,500 workers for 17 years to examine occupational exposures and dementia risk. Researchers found that men exposed to extremely low frequency magnetic fields (ELF-MF) and metals at work showed elevated rates of non-vascular dementia-related death. The findings add to growing evidence that chronic workplace EMF exposure may affect long-term brain health.
Jankowska M et al. · 2015
Cheng Y et al. · 2015
Researchers exposed neural progenitor cells from ischemic (oxygen-deprived) brains to 50 Hz electromagnetic fields at 0.4 mT and found these fields significantly enhanced both cell proliferation and neuronal differentiation. The effect worked through the Akt cellular pathway and was demonstrated in both embryonic and adult brain cells. This suggests extremely low-frequency EMFs might stimulate brain repair mechanisms after injury.
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.
Wilson JW, Haines J, Sienkiewicz Z, Dubrova YE · 2015
Researchers exposed male mice to 50 Hz magnetic fields at power line frequencies (10-300 µT) for 2-15 hours and tested for genetic mutations in sperm and blood cells. They found no significant DNA damage in blood cells and only marginal increases in sperm mutations that weren't dose-dependent. The study suggests that ELF magnetic field exposure at these levels produces minimal genetic damage compared to X-ray radiation.
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 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.
Unknown authors · 2015
Researchers exposed human skin cells to extremely low frequency magnetic fields (50 Hz, 0.1 mT) and found these fields could reset the cells' internal biological clocks by altering the expression of key circadian genes. The magnetic field exposure changed the timing of five different clock genes, including BMAL1, PER2, PER3, CRY1, and CRY2. This suggests that EMF exposure from power lines and electrical devices might disrupt our natural daily rhythms at the cellular level.
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.
Duan W et al. · 2015
This Chinese study exposed mouse sperm cells to both 50 Hz power frequency EMFs (like from power lines) and 1800 MHz cell phone radiation to compare DNA damage patterns. The research found both types caused genetic damage at higher intensities, but through different mechanisms: power frequency fields broke DNA strands directly while cell phone radiation caused oxidative damage to DNA bases. This suggests different EMF frequencies may harm cells through distinct biological pathways.
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.
Türedi S et al. · 2015
Researchers exposed pregnant rats to 900 MHz electromagnetic fields (similar to older cell phones) for one hour daily during late pregnancy. When they examined the hearts of 21-day-old male offspring, they found significant oxidative stress, cellular damage, and structural abnormalities in the heart muscle tissue compared to unexposed controls.
Shokri S, Soltani A, Kazemi M, Sardari D, Mofrad FB · 2015
Iranian researchers exposed male rats to 2.45 GHz Wi-Fi radiation (the same frequency as most home routers) for either 1 or 7 hours daily over two months. Both exposure groups showed decreased sperm quality, increased cell death in the testes, and reduced seminal vesicle weight compared to unexposed controls. The damage was worse with longer daily exposure times.
Odacı E et al. · 2015
Turkish researchers exposed pregnant rats to 900 MHz cell phone radiation for one hour daily during late pregnancy, then examined kidney tissue in 21-day-old male offspring. They found significant kidney damage including cyst formation, cellular degeneration, and oxidative stress markers. The study demonstrates that prenatal EMF exposure can cause lasting organ damage in developing animals.
Unknown authors · 2015
Researchers exposed male rats to Wi-Fi radiation (2.4 GHz) for 24 hours daily over 12 months to study reproductive effects. The exposed rats showed increased sperm head defects and reduced sizes of reproductive organs and tissues compared to unexposed controls. This suggests long-term Wi-Fi exposure may harm male fertility.
