Unknown authors · 2014
Researchers exposed adult mice to continuous 50 Hz magnetic fields at 0.1 mT or 1.0 mT for eight weeks. They found no evidence of increased persistent unrepaired nuclear DNA single-strand breaks in distinct cell types of the brain, kidney, and liver.
Unknown authors · 2014
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.
Huang CY et al · 2014
Researchers tested whether 1.5 mT, 60 Hz ELF-EMFs affect primary normal human epidermal keratinocytes as they did HaCaT cells in a prior study. ELF-EMFs exerted no effects on cell growth, cell proliferation, cell cycle distribution, or ATM signaling pathway activation in NHEK cells. The two epidermal keratinocyte types responded differently to ELF-EMFs, confirming cell type-specific biological effects.
Grant DN et al · 2014
The study investigated the effects of ELF-EMFs on acellular tissue constructs with and without gold nanoparticles. Researchers conjugated 20 nm and 100 nm gold nanoparticles to acellular porcine tissue, seeded L929 murine fibroblasts, and exposed them to a continuous 12 gauss, 60 Hz field for two hours daily up to ten days. Scanning electron microscopy and cell culture assays were used to assess cell proliferation and viability. ELF-EMF stimulation significantly increased cell proliferation. The presence of gold nanoparticles did not boost the stimulatory effect but they demonstrated higher proliferation rates from day 3 to day 10, and unstimulated 100 nm gold nanoparticle constructs had significantly higher proliferation than unstimulated crosslinked constructs.
Gherardini L et al · 2014
Ayrapetyan S, De J · 2014
They performed a comparative study on barley seed hydration using water pretreated with infrasound mechanical vibration, static magnetic field, extremely low frequency electromagnetic field, and microwave radiation. The authors suggest that cell hydration is a universal and extrasensitive biomarker for detection of biological effects of nonionizing radiation.
Unknown authors · 2014
The review outlines myelin development through life and examines evidence linking myelin integrity to low-intensity RF-EMF exposure. Across RF-EMF exposed cases the authors note morphological lesions in rat myelin sheaths, increased multiple sclerosis risk in a subgroup, effects on myelin-related proteins, and symptoms in electrohypersensitivity resembling demyelination. Overall evidence from in vivo, in vitro, and epidemiological studies suggests an association between RF-EMF exposure and myelin deterioration or direct neuronal conduction impact that may explain many electrohypersensitivity symptoms. The review notes exceptions: headache is common only in electrohypersensitivity, while ataxia is typical of demyelination but rare in that group.
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.
Unknown authors · 2014
The objective was to comprehensively analyze the relationship between human exposure to extremely low-frequency electromagnetic fields and breast cancer. Sixteen case-control studies published from 2000 to 2007 were collected. The overall pooled odds ratio was 1.10 with a 95% confidence interval of 1.01 to 1.20. In non-menopausal women the odds ratio was 1.25 (95% CI 1.05 to 1.49), while in menopausal women it was 1.04 (95% CI 0.93 to 1.18).
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).
Lee SK et al · 2014
The energy generated by an extremely low frequency electromagnetic field (ELF-EMF) is too weak to directly induce genotoxicity. However, it is reported that an extremely low frequency magnetic field (ELF-MF) is related to DNA strand breakage and apoptosis. The testes that conduct spermatogenesis through a dynamic cellular process involving meiosis and mitosis seem vulnerable to external stress such as heat, MF exposure, and chemical or physical agents. According to the ICNIRP 2010 guideline, epidemiologic studies have not consistently shown an association between human adverse reproductive outcomes and maternal or paternal exposure to low frequency fields. In animal studies there is no compelling evidence of a causal relationship between prenatal development and ELF-MF exposure.
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
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.
Maskey D et al · 2014
Researchers exposed mice to 835 MHz RF radiation at 4.0 W/kg for three months. They used free-floating immunohistochemistry to assess glycine receptor immunoreactivity in the auditory brainstem. The number of glycine receptor immunoreactive cells decreased in several cochlear and superior olivary nuclei. Auditory brainstem response thresholds were significantly elevated in the exposed group.
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).
Vijayalaxmi, Scarfi MR · 2014
The paper compiled conclusions from national and international expert groups on biological effects of radiofrequency exposures. The expert groups generally suggested a reduction in exposure levels, precautionary approach, and further research. Peer-reviewed data on radiofrequency effects were contradictory, with some studies indicating effects and others not.
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.
Rosado MM et al · 2014
Researchers exposed mice to GSM-modulated 900 MHz RF fields and transplanted bone marrow cells into irradiated syngeneic recipients from exposed, sham-exposed, or cage control donors. Twelve weeks later, thymocyte numbers, subpopulation frequencies, cell proliferation, spleen cell counts, B/T cell percentages, B/T proliferation, and IFN-γ production were all similar across groups. In a competitive transplant into Rag2-deficient mice, marrow from RF-exposed and sham-exposed mice performed equally, though both were less effective than cage-control marrow, an effect the authors linked to restraint stress, and they concluded that GSM-modulated RF exposure did not impair long-term reconstitution of peripheral T and B cell compartments.
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.
Agarwal A, Durairajanayagam D · 2014
Adams and colleagues conducted a systematic review and meta-analysis of the effect of mobile phone RF-EMW radiation on sperm quality. The analysis pooled 10 human studies involving 1,492 participants. Mobile phone exposure was associated with reduced sperm motility and viability, while effects on sperm concentration were inconsistent. The researchers suggested that carrying a mobile phone in the trouser pocket negatively impacts sperm quality.
Valič B, Kos B, Gajšek P. · 2014
