Seckin E et al. · 2014
Researchers exposed pregnant rats and their offspring to cell phone radiation (900 and 1800 MHz frequencies) for one hour daily during pregnancy and for 21 days after birth. While hearing tests showed no differences between exposed and unexposed animals, microscopic examination revealed significant cellular damage in the inner ear structures responsible for hearing. This suggests that cell phone radiation can harm developing hearing organs even when functional hearing appears normal.
Dasdag S, Yavuz I1, Bakkal M, Kargul B. · 2014
A control group of 7 rats underwent the same procedure with the generator turned off. Enamel microhardness was measured at the end of the study and showed no significant difference between groups (p>0.05).
Meral I, Tekintangac Y, Demir H · 2014
Researchers used 30 healthy guinea pigs weighing 500-800 g, randomly assigning 10 to a control group and 20 to an EMF-exposed group after a one-week adaptation period. The exposed group received 890-915 MHz EMF with a 217 Hz pulse rate, 2 W maximum peak power, and 0.95 wt kg(-1) specific absorption rate for 12 h per day (11 h 45 min stand-by and 15 min speaking mode) over 30 days. ECGs were recorded at baseline and on days 10, 20, and 30 using leads I, II, III, aVR, aVL, and aVF, with wave durations and amplitudes measured in lead II. The authors recommended further investigation with longer exposure durations to clarify cardiovascular effects.
Unknown authors · 2014
Sarapultseva EI, Igolkina JV, Tikhonov VN, Dubrova YE · 2014
Researchers exposed the ciliate Spirostomum ambiguum to 1 GHz and 10 GHz radiofrequency electromagnetic fields at power flux densities ranging from 0.05 to 0.5 W/m2 for periods from 0.05 to 10 hours. Exposure to 0.1 W/m2 of either 1 or 10 GHz radiofrequency fields resulted in a significant decrease in the motility of the ciliates. The motility of unexposed offspring of ciliates that had been irradiated with 0.1 W/m2 of 10 GHz radiofrequency fields remained significantly compromised across at least 10 to 15 generations.
Li WH, Li YZ, Song DD, Wang XR, Liu M, Wu XD, Liu XH. · 2014
Researchers pretreated rat MMECs with CRT (25 pg/mL) for 12 hours then exposed them to 2.856 GHz radiation at 30 mW/cm2 for six minutes. Microwave radiation increased LDH leakage, apoptosis rate, and decreased cell viability in MMECs. Microwave radiation also induced ER stress characterized by increased GRP78 and CRT expression and upregulation of CHOP and Bax with downregulation of Bcl-2. Exogenous CRT pretreatment attenuated MR-induced apoptosis, LDH leakage, ER stress, and ER stress-related apoptotic signaling.
Fasseas MK et al. · 2014
Researchers exposed synchronized populations of C. elegans at different developmental stages to radiation from GSM mobile phones, Wi-Fi routers, and DECT phones at electric field levels below ICNIRP guidelines. They examined wild-type and aging- or stress-sensitive mutant worms for changes in growth, fertility, lifespan, chemotaxis, short-term memory, ROS production, and apoptosis using fluorescent markers and qRT-PCR. No statistically significant differences were found between exposed and control animals in any of the measured outcomes.
Unknown authors · 2014
Unknown authors · 2014
Researchers exposed human brain cells to a 50 Hz pulsed magnetic field at 1 milliTesla while simultaneously treating them with hydrogen peroxide (a substance that damages DNA). They measured DNA breaks and cell health over 72 hours and found that the magnetic field exposure did not increase the DNA damage or cell death caused by the oxidative stress. This suggests that this specific type of extremely low frequency magnetic field doesn't make cells more vulnerable to other harmful agents.
Qin F, Yuan H, Nie J, Cao Y, Tong J · 2014
Researchers exposed male mice to 1800 MHz radiofrequency fields at 208 microW/cm2 for 0, 30, or 120 minutes per day for 30 days, while some groups also received nano-selenium by intra-gastric injection. Significant impairments in learning and memory were observed in the RF 120 min group, along with reduced acetylcholine levels and antioxidant enzyme activity and increased GABA, glutamate, and MDA in the brain. Nano-selenium supplementation decreased GABA, glutamate, and MDA levels and increased acetylcholine levels and antioxidant enzyme activities in the exposed mice.
Ozgur E et al. · 2014
Researchers exposed adult male guinea pigs to GSM-modulated radio frequency radiation at an average whole body SAR of 0.4 W/kg for 10 or 20 minutes daily for seven consecutive days. The study measured protein oxidation, advanced oxidation protein products, and superoxide dismutase activity in liver tissue, and also tested NAC and EGCG as potential protective treatments. SOD activity significantly decreased after radio frequency radiation exposure, but protein damage did not change. NAC treatment alone increased PCO levels, and EGCG treatment alone elevated AOPP levels.
Qin F, Yuan H, Nie J, Cao Y, Tong J. · 2014
Researchers exposed mice to cell phone radiation at 1800 MHz (the frequency used by GSM networks) for either 30 or 120 minutes daily over 30 days. Mice exposed for 120 minutes showed significant learning and memory problems, along with brain chemistry changes indicating oxidative stress. When researchers gave the mice nano-selenium supplements, the cognitive damage was largely prevented.
Mattei E, Censi F, Triventi M, Calcagnini G · 2014
The study evaluated electromagnetic interference potential and immunity of ten implantable pacemakers from five manufacturers tested in vitro with Wi-Fi signals. The exposure setup reproduced the IEEE 802.11b/g protocol and amplified the Wi-Fi signal to power levels higher than allowed by international regulation. None of the tested pacemakers showed any performance degradation even when exposed to radiofrequency field levels five times higher than the regulatory limit. The researchers concluded that Wi-Fi devices do not pose EMI risks to implantable pacemakers and that modern pacemaker immunity is much higher than the transmitting power of RF devices operating at 2.4 GHz.
Kantar Gok D et al. · 2014
Turkish researchers exposed rats to extremely low-frequency electric fields (50 Hz) at different intensities for 2-4 weeks and measured brain responses using mismatch negativity, a test of auditory processing. The study found that stronger electric fields (18 kV/m) reduced brain response amplitudes after 4 weeks of exposure, accompanied by increased oxidative damage markers in brain tissue.
Ciejka E et al. · 2014
Researchers studied how an extremely low frequency magnetic field used in magnetotherapy affected glutathione levels and redox state in rat skeletal muscle. Male rats weighing 280-300 g were randomly divided into 3 experimental groups: a control group and treatment groups exposed to 40 Hz, 7 mT for either 0.5 h/day or 1 h/day for 14 days. Both 30 min/day and 60 min/day exposures significantly increased total glutathione levels in skeletal muscle compared to controls (p < 0.001).
Cam ST, Seyhan N, Kavaklı C, Celikbıçak O. · 2014
The study investigated whether pulse-modulated radiofrequency radiation affects hydroxyproline content in rat skin, because skin is described as the first target of external electromagnetic fields. Two-month-old male Wistar rats were exposed to 900 MHz pulse-modulated radiofrequency radiation at an average whole-body SAR of 1.35 W/kg for 20 min/day for 3 weeks. Exposure caused a statistically significant increase in skin hydroxyproline level (p = 0.049), at a SAR below the International Commission on Non-Ionizing Radiation Protection safety limit.
Chen L, Qin F, Chen Y, Sun J, Tong J. · 2014
Kim HS et al. · 2014
Researchers assigned male Sprague-Dawley rats to cage-control, sham-exposed, and CDMA-exposed groups, with six rats per group. The CDMA-exposed rats received whole-body exposure to an 848.5 MHz CDMA signal at 2 W/kg for either 1 or 8 hours daily, five days a week, for two weeks. During the last five exposure days, all rats were injected with BrdU to label dividing cells, and the numbers of BrdU-positive cells in the subventricular zone and dentate gyrus were estimated using an unbiased stereological method. The study found no significant difference in BrdU-positive cell counts in either brain region between CDMA-exposed rats and both control groups.
Luo YP, Ma HR, Chen JW, Li JJ, Li CX. · 2014
Researchers randomly assigned 40 male SD rats to a normal control group, a model group, a Shuifei Jibin Capsule group, and an American Ginseng Capsule group, with 10 rats each. Rats in the model, SJC, and AGC groups were exposed to imitated 900 MHz cellular phone radiation for 4 h in 12 consecutive days, while the normal control group was not irradiated. Compared to the normal control, the model group showed hepatocyte nuclear atrophy, increased liver MDA and Nrf2 protein, and decreased SOD and GSH. In the SJC group, liver MDA and Nrf2 decreased and SOD, GSH, and GSH-PX increased; in the AGC group, MDA and Nrf2 decreased and SOD and GSH increased.
Senavirathna MD, Asaeda T, Thilakarathne BL, Kadono H · 2014
Researchers investigated the effect of EMR on the growth dynamics of Myriophyllum aquaticum by measuring nanometric elongation rate fluctuation using a statistical interferometry technique. Plants were exposed to 2 GHz EMR at a maximum of 1.42 Wm(-2) for 1 hour. After continuous exposure, M. aquaticum plants exhibited a statistically significant 51 ± 16% reduction in NERF standard deviation. Temperature observations revealed that EMR exposure did not cause dielectric heating, so the reduced NERF was due to a non-thermal effect. The alteration in NERF continued for at least 2.5 hours after exposure with no significant recovery during the experimental period.
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.
Maskey D et al · 2014
Researchers exposed mice to cell phone radiation (835 MHz) at 4.0 W/kg for three months and found significant damage to hearing-related brain regions. The radiation reduced critical brain receptors responsible for sound processing by up to 37% and caused measurable hearing problems. This suggests chronic cell phone use may harm the auditory system through direct brain damage.
Unknown authors · 2014
Researchers exposed pregnant rats and their offspring to 50 Hz electric fields (the same frequency as power lines) and measured brain and visual responses in the adult offspring. They found delayed nerve responses and increased oxidative damage in the brain and retina, suggesting that EMF exposure during development can cause lasting neurological effects.
Canseven AG, Esmekaya MA, Kayhan H, Tuysuz MZ, Seyhan N. · 2014
Raji cells were exposed to microwave radiation at a specific absorption rate of 0.350 W/kg for 24 hours. Microwave exposure alone significantly increased apoptotic activity and significantly decreased cell viability, and combined exposure with Gemcitabine increased apoptotic cells further than microwave radiation alone.
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.
