Furtado-Filho OV et al. · 2015
Researchers exposed young rats to 950 MHz ultra-high-frequency electromagnetic radiation to measure oxidative damage to DNA, proteins, and lipids in the left and right cerebral cortex. Radiation exposure lasted 30 minutes per day for up to 27 days, with a specific absorption rate ranging from 1.32 to 1.14 W/kg. In neonates, no modification of the biomarkers tested was detected, while 6-day-old exposed rats showed increased carbonylated proteins in the right cerebral cortex and decreased blood glucose. The researchers concluded that the elevated carbonylated proteins in the right cerebral cortex did not appear to be a consequence of oxidative stress.
Kottou S et al. · 2015
Researchers measured electromagnetic fields in indoor dwellings across Attica, Lesvos, and Zakynthos, taking 4540 measurements from 50 Hz to 2100 MHz. Significant differences in electric field values were also found between geographic locations. RF electric field maximums were mostly below 0.5 V/m but occasionally reached up to 5.6 V/m, while ELF magnetic fields stayed below 1 μT. The study states that it may be concluded that overall the observed indoor EMF intensity values remained well below domestic and European established limits.
Unknown authors · 2015
Unknown authors · 2015
Iranian researchers exposed rainbow trout to 15 Hz electromagnetic fields at various intensities for one hour daily over 60 days. Fish showed improved growth, stronger immune responses, and better resistance to bacterial infection at most exposure levels. The study suggests extremely low frequency EMF may have beneficial effects on fish health.
Jankowska M et al. · 2015
Masoudian N et al. · 2015
Researchers exposed synaptosomes, used as a model of nervous terminals, to extremely low frequency electromagnetic fields (ELF-EMF) at flux intensities from 0.1 to 2 mT and frequencies from 50 to 230 Hz. An artificial neural network program was used to analyze the raw data and predict effects across the tested range. Glutamate concentration changes fell between -35 and +40% compared to normal state, which the researchers interpreted as the glutamatergic system attempting to compensate for environmental changes.
Ozgur E et al. · 2015
Scientists exposed guinea pigs to cell phone radiation (900 MHz) for seven days and found it significantly reduced SOD, a protective antioxidant enzyme in liver tissue. Surprisingly, two common antioxidant supplements caused cellular damage when used alone, showing radiation's complex effects on cellular protection.
Jin H, Yoon HE, Lee JS, Kim JK, Myung SH, Lee YS. · 2015
Researchers assessed whether combined exposure to 60 Hz ELF-MF at 1 mT or 2 mT with ionizing radiation or hydrogen peroxide causes genomic instability in non-tumorigenic human lung epithelial L132 cells. They examined the percentages of G2/M-arrested cells and aneuploid cells after exposures. Exposure to 0.5 Gy ionizing radiation or 0.05 mM hydrogen peroxide for 9 hours increased aneuploidy but did not cause apoptotic cell death. ELF-MF alone did not affect the percentages of G2/M-arrested cells, aneuploid cells, or subG1 phase populations. Combining ELF-MF with ionizing radiation or hydrogen peroxide did not further increase G2/M arrest or aneuploidy.
Jin H et al · 2015
Korean researchers exposed human lung cells to 60 Hz magnetic fields (the same frequency as power lines) at 1-2 mT strength, both alone and combined with radiation or hydrogen peroxide. They found that magnetic fields alone caused no genetic damage, and didn't make cells more vulnerable to damage from other stressors.
Wilson JW et al · 2015
Researchers exposed seven-week-old male mice to 10, 100, or 300 μT, 50 Hz magnetic fields for 2 or 15 hours. They measured mutation frequency at the ESTR Ms6-hm locus in sperm and blood using single-molecule PCR. Blood mutation frequency did not differ from sham controls, and sperm showed a marginally significant, non-dose-dependent increase. Acute X-ray exposure produced significant mutation increases in both sperm and blood.
Unknown authors · 2015
Researchers exposed mice to a 50 Hz, 65 μT magnetic field continuously for 30 days starting at 12 days post-conception. The micronucleus test showed a slight genotoxic effect in blood erythrocytes only after the maximum exposure time, which disappeared months after exposure stopped.
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
Researchers measured indoor radiofrequency exposure at 343 locations in Hebron. The maximum total power density was about 2.3 × 10 W m with an exposure quotient of about 0.01, well below the ICNIRP limit. FM radio contributed 46% of the exposure quotient, GSM900 26%, DECT phones 15%, WLAN 9%, unknown sources 3%, and TV broadcasting 1%.
Unknown authors · 2015
Researchers measured radiofrequency radiation exposure in 343 indoor locations across Hebron, Palestine, from sources like cell towers, FM radio, WiFi, and cordless phones. While all measurements fell below international safety guidelines, FM radio contributed nearly half of total indoor RF exposure, with outdoor sources accounting for 73% of indoor radiation levels.
Unknown authors · 2015
Researchers studied 5,409 adult AML cases and 27,045 matched controls across four Nordic countries from 1961 to 2005. Lifetime occupational ELF-MF exposure and electrical shock risk were assigned using job-exposure matrices based on census-reported jobs. Approximately 40% of subjects had low-level ELF-MF exposure, 7% had high-level exposure, 18% had low electrical shock risk, and 15% had high electrical shock risk. No association was observed between high ELF-MF exposure (HR 0.88, 95% CI 0.77-1.01) or high electrical shock risk (HR 0.94, 95% CI 0.85-1.05) and AML compared to background exposure. Results remained unchanged in sensitivity analyses.
Lee D, Lee J, Lee I. · 2015
Researchers tracked the movement of 10 pairs of guppies and 15 pairs of zebrafish in a fish tank under a cell phone-generated RF EMF. Fish locomotion was observed under normal conditions, in the visual presence of a cell phone, after feeding, and under starvation. Fish locomotor behavior was random both in normal conditions and in the presence of an off-signaled cell phone, but there were significant changes in locomotion after feeding under the RF EMF. The researchers also demonstrated that temperature elevation caused by the cell phone was not relevant to the observed effects.
Wang D et al. · 2015
Exposure significantly reduced progressive sperm motility and viability and increased sperm head defects. Early apoptosis was higher after exposure, while DNA methylation of the H19 ICR and KvDMR1 imprinting genes did not change significantly.
Zhao YL et al. · 2015
Mice were exposed to whole-body 2100 MHz microwaves at SARs of 0.45, 1.8, and 3.6 W/kg for 1 hour daily for 8 weeks. GO analysis showed the genes were involved in metabolic processes, cellular metabolic processes, regulation of biological processes, macromolecular metabolic processes, biosynthetic processes, cellular protein metabolic processes, transport, developmental processes, and cellular component organization. KEGG pathway analysis revealed enrichment in ribosome, Alzheimer's disease, Parkinson's disease, long-term potentiation, Huntington's disease, and Neurotrophin signaling pathways.
Yang G, Ren Z, Mei YA. · 2015
Researchers studied the effects of 50 Hz magnetic fields on GABAA receptor activity in rat cerebellar granule neurons. Exposing the neurons to 1 mT of the field for 60 minutes significantly increased GABAA receptor currents without modifying sensitivity to GABA. Levels of phosphorylated PKC were significantly elevated after 60 minutes of exposure, and this elevation was blocked by an EP1 receptor-specific antagonist.
Olgar Y et al. · 2015
Researchers exposed rats to 2.1 GHz EMF for 2 hours per day over 10 weeks and compared them with sham-exposed rats. They measured sarcomere shortening, Ca2+ transients, and L-type Ca2+ currents in isolated ventricular myocytes. Exposure did not alter fractional shortening or Ca2+ transient amplitude, but reduced the isoproterenol-induced L-type Ca2+ current response while basal current density remained similar. Nitric oxide levels in heart tissue were significantly increased after EMF exposure.
Ma HR, Ma ZH, Wang GY, Song CM, Ma XL, Cao XH, Zhang GH. · 2015
Twenty adult male Sprague-Dawley rats were randomly divided into a normal group and a radiated group exposed to 900 MHz mobile phone radiation 4 hours per day for 18 consecutive days. Serum levels of ALT and AST did not change significantly in the radiated group compared to the normal group. Liver malondialdehyde content increased and glutathione content decreased in the radiated group. Histopathology revealed diffuse hepatocyte swelling, vacuolation, and focal necrosis. Bax protein expression was higher, bcl-2 protein expression was lower, and hepatocyte apoptosis rates were higher in the radiated group.
Mahdavi SM, Sahraei H, Rezaei-Tavirani M, Najafi Abedi A. · 2015
Rats were exposed to 40 Hz ELF-EMF once a day for 21 days and assessed at days 1, 3, 7, 14, and 21 after exposure. Body weight significantly increased only at one week after exposure and then decreased. Food and water intake did not change significantly, while anorexia significantly decreased at one and two weeks after irradiation. Plasma glucose significantly increased at one week but not at other time points. Movements, rearing, and sniffing were significantly decreased at day 1 after exposure, with no consistent pattern on other days.
Gurbuz N, Sirav B, Kuzay D, Ozer C, Seyhan N. · 2015
The study aimed to evaluate the relationship between micronuclei frequency and RF radiation in exfoliated bladder cells of diabetic and non-diabetic rats using three groups of six animals each. The RF exposure was 2100 MHz with a whole-body average SAR of 0.24 W/kg and an ERMS field of 17.5 V/m at non-thermal levels. No statistically significant differences in micronuclei frequency were found between any of the groups, including between RF-exposed diabetic rats and non-exposed diabetic rats, and between RF-exposed diabetic rats and non-diabetic controls. The authors concluded that the study suggested no possible genotoxic effects of RF radiation in humans, especially those with chronic disorders such as diabetes.
Unknown authors · 2015
Researchers exposed frog embryos to cell phone radiation at 900 and 1800 MHz frequencies, similar to GSM signals, to test for developmental damage. While radiation alone caused minimal harm, combining it with nicotine created severe abnormalities and death in the embryos. This suggests that smoking while using cell phones may amplify health risks.
Unknown authors · 2015
