Jin YB et al. · 2012
Researchers exposed mouse NIH3T3 and human WI-38 fibroblast cells to a 60 Hz, 1 mT magnetic field for 4 hours, with or without ionizing radiation, hydrogen peroxide, or c-Myc activation. Cells exposed to the magnetic field alone showed no significant difference in micronucleus frequency compared to unexposed cells. No synergistic effects were observed when the magnetic field was combined with ionizing radiation, hydrogen peroxide, or c-Myc activation.
Hong MN et al. · 2012
Researchers exposed MCF10A human breast epithelial cells to 1 mT of 60 Hz ELF-MF for 4 hours and measured intracellular ROS level, SOD activity, and GSH/GSSG ratio. The ELF-MF exposed cells showed no statistically significant changes in these parameters compared to incubator controls or sham-exposed cells. In contrast, ionizing radiation exposed cells showed marked changes in ROS level, SOD activity, and GSH/GSSG ratio, and were positive for morphological changes and SA-β-Gal activity.
Wallace D et al. · 2012
Researchers exposed Fifty-one people who reported perceived sensitivity to electromagnetic fields and 132 controls to a 420 MHz TETRA signal at 10 mW/m² and sham conditions under double-blind conditions. Cognitive measures of short-term memory, working memory, and attention were administered while physiological responses including blood volume pulse, heart rate, and skin conductance were monitored. No differences in cognitive performance or physiological responses were observed between TETRA exposure and sham in either group.
Mohler E et al. · 2012
Researchers conducted a prospective cohort study with 955 participants aged 30 to 60 years to investigate whether sleep quality is affected by mobile phone use or other RF-EMF sources. Sleep quality and daytime sleepiness were assessed using standardized questionnaires at baseline in May 2008 and follow-up in May 2009. In longitudinal analyses, neither operator-recorded nor self-reported mobile phone use was associated with sleep disturbances or daytime sleepiness.
Kwon MS et al. · 2012
Researchers investigated effects of 902.4 MHz GSM radiation on cerebral blood flow using PET with 15O-water tracer. Fifteen young healthy men were exposed to radiation at three head locations and sham exposure while performing a visual task. Exposure caused slight ear canal temperature rise but did not affect brain hemodynamics or task performance. Results showed no evidence of acute effects on cerebral blood flow.
Dogan M et al. · 2012
Rats were randomly assigned to an exposed group (n=9) and a control group (n=9), with the exposed group subjected to electromagnetic radiation for 20 days. Researchers measured choline, creatinin, and N-acetylaspartate levels by magnetic resonance spectroscopy, catalase and glutathione peroxidase activities by spectrophotometry, and apoptosis by histopathology. No significant differences were found in NAA/Cr, Cho/Cr, or NAA/Cho ratios between the exposed and control groups. Oxidative stress parameters and apoptotic cell counts also showed no significant differences between groups.
Curcio G et al. · 2012
The study aimed to investigate the effects of GSM signal exposure on brain BOLD response and its time course during a Go-NoGo task. Participants were tested twice, once with real GSM radiofrequency signal exposure and once with a sham exposure as a placebo condition. BOLD response and reaction times were measured before and after exposure while participants performed the task. Reaction times to the somatosensory task did not change with real versus sham exposure, and Go responses activated the inferior parietal lobule, insula, precentral and postcentral gyri similarly after both exposures with no significant ROI effects.
Sudan M, Kheifets L, Arah O, Olsen J, Zeltzer L. · 2012
Researchers used data from the Danish National Birth Cohort, which enrolled pregnant women from 1996 to 2002, and assessed children at age seven via maternal questionnaire. They analyzed 52,680 children using multivariable adjusted models to relate prenatal only, postnatal only, or both prenatal and postnatal cell phone exposure to migraines and headache-related symptoms. Children with both prenatal and postnatal exposure had higher odds of migraines (OR 1.30, 95% CI 1.01-1.68) and headache-related symptoms (OR 1.32, 95% CI 1.23-1.40) compared to unexposed children.
Zimmerman JW et al. · 2012
The modulation frequencies were previously identified by biofeedback methods in cancer patients. HCC-specific and breast cancer-specific frequencies significantly decreased growth of respective cancer cells but did not affect nonmalignant cells.
Zajdel R et al. · 2012
Researchers compared reaction times of 42 healthy students during instruction, control without phone, and a session with their mobile phone ringing. Reaction times were 597 ms in control, 633 ms with phone ringing, and 673 ms in instruction, with significant differences across sessions (p < 0.001). Women had longer reaction times than men in instruction and mobile sessions, while men were significantly faster in those sessions; no gender difference appeared in control.
Trivino Pardo JC, Grimaldi S, Taranta M, Naldi I, Cinti C. · 2012
Researchers cultured acute T-lymphoblastoid leukemia cells (CCRF-CEM) and exposed them to 900 MHz microwave EMF from a TEM cell at short and long exposure times. They evaluated the effect of high-frequency EMF on gene expression and identified functional pathways influenced by the exposure.
Teven CM et al. · 2012
Panagopoulos DJ · 2012
Researchers studied the effect of GSM radiation on ovarian development in virgin Drosophila melanogaster females. Exposed insects had significantly smaller ovaries due to destruction of egg chambers from DNA damage and cell death. The ovarian size difference peaked at 39-45 hours after eclosion and then decreased as mature eggs were laid in sham-exposed flies.
Ozlem Nisbet H, Nisbet C, Akar A, Cevik M, Karayigit MO · 2012
Nazıroğlu M, Ciğ B, Doğan S, Uğuz AC, Dilek S, Faouzi D. · 2012
Researchers divided twelve cell cultures into control and irradiated groups of six each, then further split them into four exposure durations of 1, 2, 12, and 24 hours. Exposed cells showed higher lipid peroxidation, cytosolic free Ca²⁺, and cell numbers than controls. The rise in cytosolic free Ca²⁺ was radiation time-dependent and highest at 24 hours. Reduced glutathione, glutathione peroxidase, vitamin C, and cell viability did not change in any group. 2-aminoethyl diphenylborinate inhibited Ca²⁺ influx by blocking transient receptor potential melastatin 2 channels.
Mouradi R, Desai N, Erdemir A, Agarwal A · 2012
The aim was to calculate the distance between a cell phone and a semen sample to set up an in vitro experiment that mimics real-life conditions with a phone in a trouser pocket separated by multiple tissue layers. The results indicated that the distance should be 0.8 cm to 1.8 cm greater than the anticipated distance between a cell phone and the testes. A computational model of scrotal tissues was designed considering the separating layers and used in simulations with the Finite Difference Time Domain method.
Mortazavi SM et al. · 2012
Researchers conducted a case–control study with 41 dentists and dentistry students, 21 exposed to EMFs from cavitrons and 20 unexposed, collecting blood samples before work at 8:30–9:30 a.m. and after work at 11:30–12:30 a.m. and measuring serum cortisol by ELISA. Morning cortisol levels did not differ significantly between the exposed and control groups. At noon, the exposed group had significantly lower cortisol than the control group. In the exposed group, cortisol decreased significantly from morning to noon. The authors state that EMFs from magnetostrictive cavitrons can decrease serum cortisol in dentists.
Mortazavi S et al. · 2012
In the first phase, 110 male mice were divided into eight groups and exposed or sham-exposed to microwave, low dose rate gamma, or both for five days before a lethal gamma dose on day six. In the second phase, 30 male rats were divided into two groups of 15; the first group received microwave exposure, the second group received no treatment before the lethal dose, and all animals were whole-body irradiated with the lethal dose on day five. Statistically significant differences in survival were observed for mice pre-exposed to microwave (p=0.02), low dose rate gamma (p=0.001), or both (p=0.003), and for rats between control and test groups. The authors concluded that exposure to microwave radiation may induce a significant survival adaptive response.
Miller G, Zhu G, Wright MJ, Hansell NK, Martin, NG · 2012
Researchers analyzed self-reported mobile phone use, intelligence, and personality traits in two samples of Australian teenaged twins totaling 1,036 individuals. ACE modeling showed substantial heritabilities for voice call frequency (.60 and .34) and text message frequency (.53 and .50), while shared family environment had much weaker effects. Multivariate modeling revealed negative genetic correlations between talking/texting frequency and intelligence (around -.17) and positive genetic correlations with extraversion (about .20 to .40).
Little MP et al. · 2012
Researchers compared glioma incidence trends in the United States with risks reported in the Swedish and Interphone studies. US glioma incidence rates remained essentially stable over a period coinciding with a large rise in mobile phone use. Predicted rates based on the Swedish study were at least 40% higher than observed, while predictions using the Interphone study could match the observed data.
Li CY, Liao MH, Lin CW, Tsai WS, Huang CC, Tang TK. · 2012
The study aimed to investigate the inhibitory effects of microwave radiation on LPS-induced NFκB expression in THP-1 monocytes. PMA caused THP-1 monocytes to differentiate into macrophages that reacted with LPS, increasing NFκB levels. Microwave radiation exposure decreased NFκB expression levels in PMA and LPS stimulated THP-1 monocytes.
Li CY, Liu CC, Chang YH, Chou LP, Ko MC. · 2012
Researchers conducted a population-based case-control study in Taiwan of children aged 15 or younger diagnosed with neoplasms between 2003 and 2007. Exposure to radiofrequency radiation was estimated from the annual power density of mobile phone base stations in each township over the five years before diagnosis. Higher-than-median exposure was significantly associated with increased odds of all neoplasms combined, but not with leukemia or brain neoplasms individually.
Leung S, Diao Y, Chan K, Siu Y, Wu Y. · 2012
Researchers evaluated the specific absorption rate induced in mobile phone users inside a vehicle across scenarios including handedness, passenger counts, and seating locations. The maximum SAR for users in a vehicle was 5% higher than in free space, while handedness showed no significant difference. SAR values around nonusers' bodies varied considerably and were higher than free space in some circumstances.
Korpinen L, Pääkkönen R. · 2012
Researchers conducted a cross-sectional study by mailing a questionnaire to 15,000 working-age Finns and analyzed 6121 responses using logistic regression models. During leisure time, 13.7% of respondents reported close call situations and 2.4% reported accidents in which mobile phone use had a partial effect. At work, the corresponding percentages were 4.5% for close calls and 0.4% for accidents. Men, younger people, and employed individuals tended to have more mobile-phone-related incidents, and sleep disturbances with minor aches were linked to a slight increase in such incidents.
Kato Y, Johansson O. · 2012
