In two Swedish case-control studies, ipsilateral use of mobile and cordless phones was associated with higher odds of astrocytoma, especially with >10 years latency (mobile phone OR 3.3, 95% CI 2.0-5.4; cordless phone OR 5.0, 95% CI 2.3-11). For acoustic neur…
Microwave irradiation at 35 GHz (surface power density 30 microW/cm^2) was associated with chromatin condensation in isolated human buccal epithelium cells. The degree of chromatin condensation varied by polarization (left circularly polarized sometimes less …
Wistar rats exposed to 915 MHz microwave radiation (2.4 W/m^2; whole-body average SAR 0.6 W/kg) showed increased DNA damage in peripheral blood leukocytes by both standard and Fpg-modified comet assays. The increase detected with the Fpg-modified assay sugges…
Measurements in residential districts with base stations were higher than in districts without base stations (p<0.05). Intensity peaked at about 10 m from the station and generally decreased with distance; some window measurements exposed to base stations exc…
![[Level of microwave radiation from mobile phone base stations built in residential districts].](/mel/og.php?f=og_6483_10954476da.png)
Radar-facility workers occupationally exposed to microwave radiation (reported field 10 µW/cm²–20 mW/cm²; frequency range 1,250–1,350 MHz) had increased DNA damage by alkaline comet assay compared with controls, with inter-individual variation. In bleomycin-s…
Compared with sham-exposed controls, 50-GHz microwave-exposed rats showed evidence of DNA double-strand breaks and significant decreases in GPx and SOD activity. Catalase activity increased significantly, and PKC decreased significantly in whole brain and hip…
Among 52 workers, those with higher exposure (TWA >0.2 microT) showed a non-significant trend toward reduced NK activity versus low exposure (TWA ≤0.2 microT). In a subgroup of highest exposed workers (TWA >1 microT; n=12), NK activity was significantly reduc…
Seeds exposed to 400 or 900 MHz RF-EMF (10, 23, 41, 120 V/m; 2 h; with additional tests of 4 h and modulation at 23 V/m) showed no significant changes in germination rate or root length under any treatment. Mitotic effects were observed: at 900 MHz, higher fi…
Rats exposed postnatally to 900 MHz EMF (1 h/day for 28 days) showed a significant decrease in the number of pyramidal cells in the hippocampal CA region compared with controls (P<0.05). Qualitative histopathological observation also indicated cell loss in th…
The abstract states that EMF in both ELF and RF ranges activate the cellular stress response, including induction of stress response genes (e.g., HSP70) and increased stress proteins. It also states that increasing EMF energy in the RF range can lead to DNA s…
Whole-body pulsed EMF exposure at 2.45 GHz (mean power density 2.8 mW/cm^2) induced significant age- and dose-dependent changes in proliferating cell numbers within the rostral migratory stream. The authors conclude that concerns about possible EMF risk are j…
This review summarizes papers reporting that modern, man-made EMFs disturb immune function via allergic and inflammatory responses and effects on tissue repair processes, potentially increasing risks for diseases including cancer. It states that such effects …
In both in vitro models, 900 MHz GSM-modulated RF-EMF exposure at 1 W/kg reduced the number of neurites generated. This morphological alteration correlated with increased beta-thymosin mRNA expression after 24 h exposure.
In HTR-8/SVneo extravillous trophoblast cells, exposure to pulse-modulated 1817 MHz (GSM-217 Hz) for 1 h at SAR 2 W/kg significantly and selectively increased Cx40 and Cx43 mRNA expression without altering protein expression. After exposure, Cx40 and Cx43 imm…
In SHG44 cells, exposure to 900-MHz EMF increased gamma-ray-associated damage. EMF preexposure enhanced the gamma-ray-induced decrease in cell proliferation and increased apoptosis; combined EMF and gamma-ray exposure produced a synergistic stress response wi…
Cell phone EMF radiation (power density 8.55 microW/cm^2; 900 MHz; 0.5–4 h) significantly inhibited mung bean germination (at ≥2 h) and radicle/plumule growth (at ≥1 h) in a time-dependent manner. Exposure increased MDA and H2O2, increased root oxidizability,…
In human amnion (FL) cells, both EGF treatment and 50-Hz magnetic field exposure (0.4 mT, 15 min) induced EGFR clustering. Imipramine pretreatment (A-SMase inhibitor) eliminated the magnetic-field-induced clustering, and subsequent ceramide incubation after i…
![[A preliminary study on role of acid sphingomyelinase in receptor clustering induced by 50-Hz magnetic fields].](/mel/og.php?f=og_3366_78382f978d.png)
After microwave exposure at 10, 30, and 100 mW/cm^2, AQP4 expression in rat hippocampus was reported as abnormal. Protein expression increased initially then recovered in the 10 and 30 mW/cm^2 groups, while it increased progressively in the 100 mW/cm^2 group …
![[A aquaporin 4 expression and effects in rat hippocampus after microwave radiation].](/mel/og.php?f=og_3364_2348f86fc4.png)
Compared with controls, exposure at 30 MHz was associated with shorter proestrus duration (100–1600 V/m) and longer anestrum duration (400–1600 V/m). Serum LH increased and serum E2 decreased at 400 and 1600 V/m. Follicle composition ratios shifted toward mor…
![[Female genital toxicities of high-frequency electromagnetic field on rats].](/mel/og.php?f=og_3363_cc5dc98ed1.png)
Exposure of isolated sarcoplasmic reticulum vesicles to a 0.4 mT, 50 Hz sinusoidal magnetic field for 30 minutes increased the initial rate of SR Ca2+ release (~35%) and [(3)H]-ryanodine binding (~15%) under conditions regulated by 1 mmol/L NADH with 1 mmol/L…
![[Effects of 50 Hz sinusoidal magnetic field on Ca2+ release channel ryanodine receptor of sarcoplasmic reticulum vesicles].](/mel/og.php?f=og_3362_1e79cf0d4a.png)