After exposure to modulated microwave radiation (0.9 GHz; 16 pulses/s; 50% pulse duration; 15 W/kg; 15 min), ultrathin sections showed drastic ultrastructural changes in olfactory and respiratory epithelia, including strong vacuolization, cilia fusion forming…
![[Electron microscopic analysis of the effect of modulated microwave radiation on isolated rat olfactory mucosa].](/mel/og.php?f=og_6332_c629c9c653.png)
Bacterial suspensions exposed to 2450 MHz microwaves at 550 W for 5–30 seconds showed CFU/ml differences versus unradiated controls (P < 0.001). CFU/ml values also differed significantly between microwave-exposed suspensions and those subjected to conventiona…
Among workers at AM broadcast stations, exposure to EMF (as characterized for that setting) was associated with a six-fold higher risk of electrographic disturbances detected by resting ECG and 24-hour Holter compared with radio link station workers not expos…
![[Evaluation of selected parameters of circulatory system function in various occupational groups exposed to high frequency electromagnetic fields. II. Electrocardiographic changes].](/mel/og.php?f=og_5423_a5acc6becc.png)
E. coli in simulated milk ultrafiltrate exposed to pulsed electric fields (36 kV/cm, 2 μs pulses) showed increased inactivation rates at higher processing temperatures (3–40°C). Square-wave pulses were more lethal than exponentially decaying pulses (at 7°C af…
In a cohort of 410 office workers exposed to strong magnetic fields from three 12 kV transformers, eight incident cancers occurred over a 15-year exposure period. Cancer incidence was higher among workers employed ≥2 years (7/156) than among those employed <2…
In this clinic-based case-control study of occupations with likely electromagnetic field exposure, the adjusted odds ratio for Alzheimer's disease for both sexes combined was 3.93 (p=0.006; 95% CI 1.5–10.6). Sex-stratified adjusted odds ratios were 4.90 for m…
Guinea pigs exposed to an external electric field (1.9 kV/m) for 9 hours/day for 3 days showed increased hydroxyproline levels in liver, lung, and kidney. The authors suggest this indicates increased collagen synthesis.
A 70-year-old female developed torsade de pointes-type polymorphic ventricular tachycardia following radiofrequency catheter His ablation, associated with slow rate, ventricular bigeminy, and QT prolongation. Arrhythmias recurred after VVIR pacemaker implanta…
Among 1964 radiofrequency ablations, atrioventricular block occurred in 23 cases (1.2%): 14 third-degree (3 transient) and 9 second-degree (5 transient). Occurrence was associated with ablation site (higher rates at anteroseptal and especially midseptal sites…
In male Balb/c mice, continuous-wave 2.45 GHz exposure (6 days, 3 h/day) increased the number of antibody-producing spleen cells by 37%. Amplitude-modulated exposure (50 Hz square-wave modulation) increased spleen index by 15% and antibody-producing spleen ce…
Prenatal microwave exposure (2.45 GHz; 3 mW/cm2; whole-body SAR 4.23 ± 0.63 W/kg) did not influence postnatal body weight gain or organ weight through postnatal day 24. Brain aminoacyl-tRNA synthetase activity significantly decreased after continuous-wave exp…
Rat muscle actomyosin solution exposed to 2375 MHz pulse-modulated microwave radiation showed ATPase activity changes that depended on modulation frequency (50–300 pulses/second) and microwave intensity; specific modulation frequencies were reported to change…
![[Effects of 2375 MHz pulse-modulated microwave radiation on ATPase activity of the rat muscle actomyosin].](/mel/og.php?f=og_6331_a5bd6fb61a.png)
In pigs exposed for 24 hr to 915 MHz microwave radiation, low-power exposure (6.1 mW/cm^2) showed ultrastructural and numerical signs consistent with enhanced secretory activity in pulmonary intravascular macrophages (e.g., increased RER:cytoplasm ratio, prom…
Low-intensity microwave exposure was reported to alter agonist binding to brain glutamate and GABA receptors when power density exceeded 50 microW/cm2. Effects were described as dependent on low-frequency modulation, with statistically significant changes in …
![[Reaction of the brain receptor system to the effect of low intensity microwaves].](/mel/og.php?f=og_6326_00fd1ba9d9.png)
Rodent studies have reported a diminished and/or time-shifted nocturnal melatonin peak with exposure to 50/60-Hz electric and/or magnetic fields. Experimental data from primates and humans are described as insufficient to show that similar changes occur in th…
The study found very small increases in risk of childhood brain tumors associated with paternal occupational EMF exposure prior to conception (OR 1.12 to 1.31). A notably elevated odds ratio was found for paternal welding exposure (OR 3.8, 95% CI 0.95-15.55).
In a light-stimulus comparison, ICOS detected an effect in 39% (11/28) despite all subjects being aware of the light, implying a 61% false-negative rate. In an EMF-exposed group (0.8 G at 1.5 or 10 Hz), ICOS detected similar brain activity alterations in 58% …
Using proportional mortality analyses of death certificates, all-sites cancer mortality was slightly elevated (PMR 1.11; 95% CI 0.91–1.35). Laryngeal cancer mortality was statistically significantly higher overall (PCMR 2.04; 95% CI 1.05–4.20). In the group w…
![[Cancer mortality among electricity utility workers in a the state of Sao Paulo, Brazil].](/mel/og.php?f=og_5426_c52e375245.png)
Radish showed significantly greater dry stem weight and plant height in EMF-exposed plants versus controls in each EMF experiment; several other weight/size measures were significantly greater in some experiments, and all significant differences indicated inc…
Human PBMCs exposed in vitro to 50 Hz EMF at 1, 3, 10, and 30 mT for 3 days showed a significant reduction in TNF-α production at all exposure levels versus non-exposed controls. Significant increases in IL-1β and decreases in IFN-γ were observed at some expo…
