Pawlak K, Sechman A, Nieckarz Z · 2014
Polish researchers exposed chicken embryos to 1800 MHz cell phone frequency radiation throughout their development and measured stress hormones. The EMF-exposed embryos showed decreased thyroid hormones and increased stress hormone levels, with effects most pronounced in newly hatched chicks. By slaughter age, hormone levels had returned to normal.
Pelletier A et al. · 2014
Researchers recorded thermal preference and sleep in 18 young male Wistar rats, with nine exposed to a low-intensity RF-EMF at 900 MHz and nine serving as non-exposed controls. During the light period, exposed rats preferred to sleep at an air temperature of 31°C while controls preferred 28°C. During the dark period, no significant differences between groups were found.
Pelletier A et al. · 2014
Researchers exposed young rats to cell phone-frequency radiation (900 MHz) for five weeks and found the animals developed altered sleep patterns and temperature preferences. The exposed rats slept 15.5% longer, preferred warmer environments, and had cooler tail temperatures, suggesting the radiation disrupted their normal body temperature regulation. This provides biological evidence that radiofrequency exposure can interfere with fundamental physiological processes like sleep and thermoregulation.
Geronikolou S et al. · 2014
Egg laying in the second generation was compared between exposed and non-exposed cultures using advanced statistics. The 900 MHz exposure showed statistical significance, while the cordless phone exposure showed limited statistical significance. The researchers also calculated and simulated the near-field radiation patterns inside the vials. They found that the power difference between the two fields becomes null when the cylinder radius and antenna height increase.
Murbach et al. · 2014
Researchers evaluated three hypotheses about how radiofrequency exposure could affect EEG by using numerical simulations and experimental assessments with phantoms and anatomical human models. They found that induced fields cause less than a 20% increase in 10 g-averaged SAR, that worst-case electrode placement raises skin temperature by at most 0.31 °C and brain temperature by less than 0.1 °C, and that temperature ripples from RF pulses are below 0.001 °C for GSM-like signals and below 0.004 °C for higher pulse energy. These local short-term temperature elevations are unlikely to change brain physiology during the time period from minutes to several hours after exposure. Thus, the mechanism of interaction between RF and changes in the EEG power spectrum remains unknown.
Seckin E et al · 2014
Turkish researchers exposed pregnant rats and their newborns to cell phone radiation at 900 MHz and 1800 MHz frequencies for one hour daily during pregnancy and early development. While hearing tests showed no differences, microscopic examination revealed significant cellular damage in the inner ear, including increased cell death and structural abnormalities in the cochlea.
Seckin E et al · 2014
Turkish researchers exposed pregnant rats and their newborns to 900 MHz and 1800 MHz cell phone radiation for one hour daily throughout pregnancy and early development. While hearing tests showed no differences, electron microscope examination revealed significant cellular damage in the inner ear (cochlea) of exposed animals, including increased cell death.
Taberski K et al. · 2014
Researchers exposed 16 male Djungarian hamsters to 900 MHz GSM-modulated RF-EMF at SAR levels of 0, 0.08, 0.4, and 4 W/kg for one week per condition. Only at the highest SAR level did fur temperature increase by about 0.5°C, food consumption decrease, and daytime carbon dioxide production and respiratory quotient decrease.
Yilmaz A et al. · 2014
Researchers exposed rats to mobile phone radiation at typical usage levels for four weeks, then examined brain tissue for signs of cell death (apoptosis). They found significantly increased levels of proteins that control cell death in the exposed rats compared to unexposed controls. This suggests that mobile phone radiation may trigger cellular stress responses in brain tissue at exposure levels similar to everyday phone use.
Azadi Oskouyi E et al. · 2014
In this study, 18 male rabbits were randomly divided into two experimental groups and one control group, and the experimental groups received simulated microwaves at 950 MHz with output power of 3 and 6 watts for 2 weeks, 2 h a day. The epithelial height and diameter of the epididymis decreased significantly in both the 3 watt and 6 watt groups, while testosterone level decreased significantly only in the 6 watt group. The rate of apoptosis in the epithelial cells of the epididymis increased significantly only in the 6 watt group.
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.
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.
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.
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
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.
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.
