Croft RJ et al. · 2010
Researchers exposed 103 people across three age groups (teens, young adults, and elderly) to 2G and 3G cell phone signals while measuring their brain waves. They found that only young adults (ages 19-40) showed changes in their alpha brain waves when exposed to 2G signals, while teenagers and elderly participants showed no effects from either 2G or 3G exposure. This suggests that brain sensitivity to cell phone radiation varies significantly by age.
Ozgur E, Güler G, Seyhan N. · 2010
Researchers exposed guinea pigs to an 1800-MHz GSM-modulated signal at a whole body SAR of 0.38 W/kg for 10 or 20 minutes per day for seven days to study oxidative damage in the liver. After exposure, significant increases in malondialdehyde and total nitric oxide levels were observed, along with decreases in several antioxidant enzyme activities in the liver. The extent of oxidative damage was found to be proportional to the duration of exposure, and both NAC and EGCG were found to protect liver tissue against this damage.
Ozgur E, Güler G, Seyhan N · 2010
Guinea pigs exposed to cell phone radiation (1800 MHz) for 10-20 minutes daily showed liver damage from oxidative stress, with longer exposure causing more harm. However, antioxidants N-acetyl cysteine and green tea extract provided significant protection against this cellular damage.
Fragopoulou AF et al. · 2010
Researchers exposed mice to 900MHz cell phone radiation for 2 hours daily over 4 days, then tested their spatial memory using maze tasks. Exposed mice showed significant learning and memory deficits compared to unexposed mice, suggesting mobile phone radiation may impair brain function.
Kesari KK, Behari J, Kumar S. · 2010
Researchers exposed male Wistar rats to 2.45 GHz microwave radiation for 2 hours a day for 35 days at a power density of 0.34 mW/cm2. The whole brain tissue was dissected and used for study of double strand DNA breaks by micro gel electrophoresis and comet assay. Exposed brain cells showed a significant increase in comet head, tail length, and tail movement. The study concluded that chronic exposure to these radiations may cause significant damage to brain, which may be an indication of possible tumour promotion.
Vecchio F et al. · 2010
Italian researchers measured brain wave patterns in elderly and young adults while exposed to cell phone radiation for 45 minutes. They found that older adults showed significantly increased synchronization between the left and right brain hemispheres in the alpha frequency range (8-12 Hz) during phone exposure, while younger subjects showed minimal changes. This suggests that aging brains may be more vulnerable to electromagnetic field effects from mobile devices.
Goraca A, Ciejka E, Piechota A. · 2010
Researchers exposed rats to an extremely low frequency magnetic field (ELF-MF) at 40 Hz and 7 mT for either 30 or 60 minutes per day for 14 days, then measured oxidative stress markers in heart tissue and plasma. Exposure at 30 minutes per day did not significantly alter any of the measured oxidative stress markers.
Unknown authors · 2010
Akdag MZ, Dasdag S, Ulukaya E, Uzunlar AK, Kurt MA, Taşkin A · 2010
Researchers exposed rats to extremely low-frequency magnetic fields for 2 hours per day for 10 months, then measured apoptosis and oxidative stress markers in brain tissue. Apoptosis scores and MPO activity were not significantly different between the exposed and sham groups. MDA, TOS, and OSI values were found to be higher in the ELF-500 group than in the ELF-100 and sham groups, and total antioxidative capacity was lower in the ELF-500 group.
Martínez-Sámano J et al. · 2010
Researchers exposed adult male Wistar rats to extremely low frequency electromagnetic fields (60 Hz, 2.4 mT) for two hours to evaluate early effects on antioxidant systems in plasma, liver, kidney, and heart. SOD activity was lower in the plasma of restrained and EMF-exposed animals compared to unrestrained rats. There were no significant differences in CAT activity and TBARS levels among the experimental groups versus the control group. The researchers noted that oxidative stress induced by movement restraint was stronger than that produced by EMF.
Chavdoula ED, Panagopoulos DJ, Margaritis LH. · 2010
Researchers exposed Drosophila melanogaster to GSM-900MHz radiation for 6 minutes daily to compare continuous and intermittent exposure effects on reproductive capacity and apoptotic cell death. Previous work showed 6-minute continuous daily exposure for five days greatly reduced reproductive capacity, measured by F1 pupae count, and this decrease was non-thermal and linked to increased DNA fragmentation in egg chamber cells. The current experiments found intermittent exposure also reduced reproductive capacity and disrupted the actin-cytoskeleton network of egg chambers, with the effect also due to DNA fragmentation. Intermittent exposures with 10-minute intervals were almost as effective as continuous exposure, while longer intervals allowed the flies to partly recover.
Panagopoulos DJ, Chavdoula ED, Margaritis LH · 2010
Researchers exposed adult Drosophila melanogaster to GSM 900/1800 mobile phone antenna radiation at distances from 0 to 100 cm and measured reproductive capacity and cell death in the gonads using the TUNEL assay. The radiation decreased reproductive capacity by inducing cell death at all distances tested. The effect was strongest at 20-30 cm (radiation intensity around 10 microW/cm(2)), diminished considerably beyond 40-50 cm, and was not evident beyond 1 m or below 1 microW/cm(2).
Panagopoulos DJ, Margaritis LH · 2010
Researchers exposed fruit flies to GSM 900 and DCS 1800 radiation for daily durations of 1 to 21 minutes. Reproductive capacity decreased almost linearly as exposure duration increased for both radiation types. GSM 900 radiation was slightly more bioactive than DCS 1800 radiation at the same exposure durations and equal intensities.
Lee HJ et al. · 2010
Male rats were exposed to 848.5 MHz RF for 12 weeks. The exposure schedule consisted of two 45-min RF exposure periods separated by a 15-min interval. The whole-body average SAR was 2.0 W/kg. Researchers measured sperm counts, malondialdehyde concentrations, spermatogenesis stage frequency, germ cell counts, apoptotic cells, and performed immunoblotting for p53, bcl-2, caspase 3, p21, and PARP. The study concluded that subchronic exposure did not have observable adverse effects on rat spermatogenesis.
Tomruk A, Guler G, Dincel AS. · 2010
Researchers exposed nonpregnant and pregnant New Zealand White rabbits to whole-body 1800 MHz GSM-like RF radiation for 15 minutes per day over one week. Liver 8-OHdG levels did not differ between exposed and control rabbits in either the adult or newborn groups. However, MDA and FOX levels were significantly higher in exposed adult rabbits, and FOX was also elevated in newborns of exposed mothers.
Unknown authors · 2010
Unknown authors · 2010
A single 30-minute exposure to a 60-Hz time-varying magnetic field of 6 mT showed no effect on human normal and cancer cells. The repetitive exposure also activated p38 and induced apoptosis in both cancer and normal cells.
Unknown authors · 2010
Korean researchers exposed human cells to 60-Hz magnetic fields (the same frequency as power lines) and found that repeated exposures caused DNA breaks and cell death, while single exposures showed no effect. The study used strong magnetic fields (6 milliTesla) applied for 30 minutes daily over three days, revealing that cumulative exposure triggers cellular damage pathways.
Eşmekaya MA, Seyhan N, Omeroğlu S. · 2010
Researchers exposed two-month-old male Wistar rats to 900 MHz pulse-modulated RF radiation at a SAR of 1.35 Watt/kg for 20 min/day for three weeks. The study examined thyroid gland tissue using light microscopy, electron microscopy, and immunohistochemical methods. Morphological analyses revealed hypothyrophy of the gland, and the results indicated that thyroid hormone secretion was inhibited by the RF radiation. Apoptotic bodies were observed, and caspase-3 and caspase-9 activities were increased in thyroid cells of exposed rats.
Danker-Hopfe H, Dorn H, Bornkessel C, Sauter C. · 2010
Researchers conducted a double-blind, sham-controlled, randomized cross-over study with 397 residents exposed to GSM base station signals and sham exposure at home for 12 nights. No significant differences in objective or subjective sleep measures were found between real and sham exposure conditions. During sham exposure nights, participants with concerns about health risks from base stations had significantly worse sleep efficiency, wake after sleep onset, and subjective sleep latency than those without concerns. The authors concluded that EMF from base stations did not affect sleep quality, but the presence of base stations themselves may negatively impact sleep.
Danker-Hopfe H, Dorn H, Bornkessel C, Sauter C · 2010
German researchers studied nearly 400 people living near experimental cell towers to see if radio waves from base stations affect sleep quality. After monitoring participants for 12 nights with both real and fake tower signals, they found no measurable differences in sleep patterns between the two conditions. However, people who were worried about health risks from cell towers did sleep worse during all test nights, suggesting anxiety rather than electromagnetic fields was affecting their rest.
Gerner C et al. · 2010
Researchers used proteome analysis to study whether low-intensity radio-frequency electromagnetic field exposure could affect protein synthesis in cultured human cells. Four different cell types were exposed to 2 W/kg specific absorption rate, and autoradiography of 2D gel spots was used to measure changes in synthesis of individual proteins. An 8-hour exposure caused a significant increase in protein synthesis in Jurkat T-cells and human fibroblasts, and to a lesser extent in activated primary human mononuclear cells, while short-term exposure did not significantly alter the proteome. Quiescent, metabolically inactive mononuclear cells did not detectably respond to the exposure.
O'Connor RP, Madison SD, Leveque P, Roderick HL, Bootman MD · 2010
Researchers used a high-throughput imaging platform to monitor calcium changes in cells exposed to 900 MHz GSM fields at specific absorption rates of 0.012–2 W/kg. The study examined resting calcium, agonist-evoked calcium signals, calcium store emptying, and store-operated calcium entry. GSM field data were compared with continuous wave fields and no-field controls. No changes in calcium signals were detected even at the highest field strengths, which exceeded typical phone exposure levels. The researchers concluded they could not detect any consequence of RF exposure under their experimental conditions.
Unknown authors · 2010
Akan Z, Aksu B, Tulunay A, Bilsel S, Inhan-Garip A · 2010
Researchers applied 50 Hz, 1 mT electromagnetic fields for 4 to 6 hours to human monocytic leukemia cells (THP-1) that had been stimulated with Staphylococcus aureus or interferon gamma/lipopolysaccharide. Field application increased nitric oxide levels, with the increase appearing earlier and being more prominent in cells stimulated with S. aureus. ELF-EMF alone caused increased hsp70 levels in a time-dependent manner, and the growth curve of exposed bacteria was lower than the control. The researchers suggested that ELF-EMF could be exploited for beneficial uses.
