Bodera P et al. · 2015
Researchers exposed rats to 1800 MHz radiofrequency radiation (similar to cell phone signals) five times for 15 minutes each and measured oxidative damage in their organs. The EMF exposure increased lipid peroxidation (a marker of cellular damage from free radicals) in the brain, blood, and kidneys, particularly when combined with a pain medication. This suggests that even brief, repeated exposure to cell phone-level radiation may cause measurable oxidative stress in vital organs.
Misa-Agustiño MJ et al. · 2015
Bedir R et al. · 2015
Researchers exposed pregnant Sprague-Dawley rats to a 900-MHz electromagnetic field during the first 20 days of pregnancy. Kidney tissue from exposed fetuses showed mild congestion, tubular defects, and dilatation of Bowman's capsule. Apoptosis assessed by caspase-3 staining was stronger in exposed renal tubular cells, and serum potassium was significantly higher in the exposed group while urea, creatinine and other electrolytes did not differ.
Holovská K et al. · 2015
Researchers exposed mature Wistar rats to an electromagnetic field of frequency 2.45 GHz and mean power density of 2.8 mW/cm2 for 3 h/d for 3 wk. Liver samples were obtained 3 h after the last irradiation and processed histologically for light and transmission electron microscopy. The researchers concluded that EMR exposure produced adverse effects on rat liver.
Aydoğan F et al. · 2015
Mucociliary clearance was measured by rhinoscintigraphy and nasal tissue was examined with a transmission electron microscope. The researchers concluded that the radiation damaged the nasal septal mucosa and disturbed mucociliary clearance, with ciliary disorganization and loss causing the deterioration.
Adibzadeh F et al · 2015
Researchers tested how different head shapes and sizes affect radiation absorption from cell phones using computer models of 20 different heads. They found dramatic variations in brain radiation exposure - up to 16 times higher in some people compared to others when using phones at the same power level. This suggests that standard safety testing using only generic head models may not protect everyone equally.
Marjanovic AM, Pavicic I, Trosic I, · 2015
Researchers evaluated the influence of a modulated radiofrequency field of 1800 MHz, strength of 30 V/m on oxidation-reduction processes within the cell. V79 cell line samples were irradiated for 10, 30, and 60 minutes, with a specific absorption rate calculated to be 1.6 W/kg. ROS levels significantly increased after 10 minutes of exposure, then decreased after 30 minutes, which researchers associated with antioxidant defence mechanism activation. Metabolic activity and total protein content in exposed cells did not differ significantly from control samples.
Marjanovic AM, Pavicic I, Trosic I · 2015
Scientists exposed hamster cells to cell phone radiation (1800 MHz) for 10-60 minutes. Even brief 10-minute exposures significantly increased harmful molecules called reactive oxygen species that can damage cells, showing that phone radiation disrupts cellular balance.
Nazıroğlu M, Özkan FF, Hapil SR, Ghazizadeh V, Çiğ B · 2015
Nazıroğlu M, Ozkan FF, Hapil SR, Ghazizadeh V, Ciğ B · 2015
Researchers exposed brain cells from epileptic rats to 900 MHz mobile phone radiation for one hour to see if it worsened seizure-related brain damage. The epilepsy itself caused significant cell death, oxidative stress, and calcium influx in the hippocampus (a brain region crucial for memory), but the mobile phone radiation didn't add any additional harmful effects. This suggests that in already-damaged brain tissue, 900 MHz EMF exposure may not worsen the cellular damage beyond what the disease itself causes.
Nazıroğlu M, Özkan FF, Hapil SR, Ghazizadeh V, Çiğ B. · 2015
Researchers exposed brain cells from epileptic rats to 900 MHz cell phone radiation for one hour to see if it would worsen brain damage. While epilepsy itself caused significant cellular damage including cell death and calcium influx, the cell phone radiation did not add any additional harmful effects. This suggests that 900 MHz EMF exposure may not exacerbate existing brain conditions like epilepsy.
Liu YX et al. · 2015
Researchers exposed human glioblastoma cell lines U251-MG and U87-MG to 1950-MHz TD-SCDMA fields at a maximum SAR of 5.0 W/kg for 12, 24, and 48 hours. They measured cell morphology, apoptosis, cell cycle, growth, gene and protein expression, tumor formation, and invasiveness. No significant differences in biological features or tumor formation ability were found between exposed and unexposed cells. Exposure did not act as a cytotoxic or tumor-promoting agent affecting proliferation or gene expression.
Ye W, Wang F, Zhang W, Fang N, Zhao W, Wang J. · 2015
Researchers examined the effects of mobile phone radiation on cardiovascular development in chicken embryos using a 900 MHz phone at a specific absorption rate of approximately 1.07 W/kg, applied intermittently for 3 hours per day during incubation. The rate of embryonic mortality and cardiac deformity increased significantly in the exposed group. Comet assay data showed the haemocyte mean tail in the exposed group was significantly larger than that of the control. The researchers suggest that long-term exposure may induce myocardium pathological changes, DNA damage, and increased mortality, but found little effect on vascular development.
Roggeveen S, van Os J, Lousberg R · 2015
Researchers investigated whether third generation mobile phone radiation peaks produce event-related potentials in the brain. Thirty-one healthy females took part in a single-blind, cross-over design where a 15 minute mobile phone exposure was compared to two 15 minute sham phone conditions. When the phone was placed at the ear, an enlarged cortical reactivity was found in the frontal and central cortical regions, but not when it was placed at the heart.
Sehitoglu I et al. · 2015
Pregnant rats were exposed to 900 MHz cell-phone radiation 24 hours a day for 20 days throughout pregnancy. Seven male offspring from each group were evaluated at 60 days, with testicular size, weight, histology, and serum testosterone measured. Exposed males had lower serum testosterone (3.51±0.21 ng/ml vs 4.04±0.47 ng/ml, p=0.018), higher caspase-3 activity (2.00±0.88 vs 1.00±0.63, p=0.026), and lower Johnsen scores (8.4±0.5 vs 9.4±0.5, p=0.010) than controls.
Misa-Agustiño MJ et al. · 2015
Fifty-six rats were individually exposed once or repeatedly for 30 minutes to 2.45 GHz radiation at different non-thermal SARs calculated by finite difference time domain technique. The diathermy model applied maximum exposure to the left front leg to study radiation effects on nearby thyroid tissue. Immunohistochemistry was used to examine HSP-90 expression and morphological changes in thyroid tissue. Ninety minutes after highest SAR exposure, central and peripheral follicles increased in size; twenty-four hours after 12 W exposure, peripheral follicles were smaller; and repeated 3 W exposure increased peripheral follicle size.
Unknown authors · 2015
Researchers conducted an Israeli national survey of occupational radiofrequency field levels between 100 kHz and 40 GHz across 25 occupations. They recorded almost 4300 measurements from 900 sources and categorized exposures as routine, incidental, or unintended. The geometric mean of routine exposures was below 1% of ACGIH threshold limit values for most occupations, but walkie-talkie, induction heating, plastic welding, industrial heating, and diathermy workers had higher percentages. Incidental and unintended exposures exceeded the TLV for one and 14 occupations respectively. Walkie-talkie workers dominated collective exposure, accounting for 96.3% of the total.
Cao H et al · 2015
Researchers exposed rats to 1.8 GHz cell phone radiation for 2 hours daily over 32 days, timing exposures at different hours. They found that radiation disrupted natural daily rhythms of key antioxidants (melatonin, GSH-Px, and SOD) that protect cells from damage, with the most severe disruption occurring during nighttime and early morning exposures.
Unknown authors · 2015
Israeli researchers measured radiofrequency radiation exposure across 25 different occupations, recording nearly 4,300 measurements from workers in broadcasting, medical, communications, and other RF-using industries. While most routine exposures stayed well below safety limits, walkie-talkie users, induction heating workers, and plastic welders faced the highest exposure levels, with some workers exceeding recommended thresholds during certain tasks.
Unknown authors · 2015
Israeli researchers measured radiofrequency exposure levels across 25 different occupations, taking nearly 4,300 measurements from workers in broadcasting, medical, communications, and other RF-using industries. They found that walkie-talkie users, plastic welders, and industrial heating workers face the highest exposures, with walkie-talkie operators receiving 94% of safety limits during routine work. Most other occupations stayed well below established safety thresholds, though some workers experienced brief spikes above recommended levels.
Cao H et al · 2015
Researchers exposed rats to 1.8 GHz radiofrequency radiation (similar to cell phone frequencies) for 2 hours daily over 32 days, timing exposures at different hours. The study found that RF exposure disrupted natural daily rhythms of key antioxidants in the blood, with the most severe effects occurring when exposure happened at night (11 PM) or early morning (3 AM).
Djordjevic B et al. · 2015
Researchers studied whether melatonin treatment (2 mg/kg) might favorably impact liver tissue in rats exposed to microwave radiation. The experiment used 84 six-weeks-old Wistar male rats exposed for 4 hours a day to microwaves at 900 MHz for 20, 40, and 60 days. Microwave exposure increased malondialdehyde after 40 days, protein carbonyl content after 20 days, and catalase and xanthine oxidase activity after 40 days. Melatonin reduced malondialdehyde after 40 days but had no effect on the other analyzed parameters.
Djordjevic B et al. · 2015
Serbian researchers exposed rats to 900 MHz microwave radiation (similar to cell phone frequencies) for 4 hours daily over 20-60 days and found significant liver damage, including increased oxidative stress and cellular damage markers. When rats were also given melatonin supplements, the treatment partially protected against some of the radiation-induced liver damage. This suggests that microwave radiation can harm liver function, but natural antioxidants like melatonin may offer some protection.
Wang C et al. · 2015
Unknown authors · 2015
