In vitro exposure to pulse-modulated microwave radiation (carrier 2375 MHz; modulation pulse rate 10–390 Hz) altered alkaline phosphatase activity depending on modulation frequency and intensity. At 70 Hz modulation, alkaline phosphatase activity increased by…
![[Changes in serum alkaline phosphatase activity during in vitro exposure to amplitude-modulated electromagnetic field of ultrahigh frequency (2375 MHz) in guinea pigs].](/mel/og.php?f=og_6372_38661d2653.png)
The authors describe clusters of multiple tumor types among radar technicians reported to have prolonged high-level RF/microwave exposures, including a cohort of 25 workers with six tumors. They report estimated relative risks for cancer in this group and des…
For both radiation frequencies (2.45 and 7.7 GHz), micronuclei were induced compared with control cultures at a power density of 30 mW/cm^2 after 30 and 60 min exposures.
Microwave radiation and strychnine produced changes in electrocorticogram spectral parameters and nonlinear dynamics measures (correlation dimension, Kolmogorov entropy) that were opposite to those induced by urethane. The modulatory effect of microwaves on c…
In a co-culture in vitro BBB model (rat astrocytes with porcine brain capillary endothelial cells), exposure to GSM1800-standard EMF (1.8 GHz) significantly increased permeability to (14)C-sucrose compared with identically cultured unexposed samples.
In mice, exposure to a 0.1 mT, 60 Hz electromagnetic field did not induce nitric oxide (NO) generation by itself, but significantly enhanced lipopolysaccharide (LPS)-induced NO generation in vivo as measured by ESR spectra of NO adducts in liver.
In mice and rats of different ages, ultralow-intensity EMF exposure (4200 and 970 MHz; quasistochastic modulation 20–20,000 Hz; power density 15 microW/cm2; specific body absorption up to 4.5 mJ/kg) generally inhibited locomotor and exploratory activity in th…
![[Species specificity, age factors, and various neurochemical correlates of the animal spontaneous behavior after exposure to electromagnetic field of the ultralow intensity].](/mel/og.php?f=og_5341_7f628f8f13.png)
Exposure to 60 Hz ELF-EMF produced a dose-dependent inhibition of chemically induced differentiation, with maximal inhibition reported as 40% at 40 mG (4 µT). ELF-EMF at 1.0 G (100 µT) and 10.0 G (1,000 µT) increased cell proliferation by 50% versus sham, and…
Mouse pre-antral follicles cultured for 5 days and exposed to pulsed ELF-EMF at 33 or 50 Hz showed no growth effect over 3 days; by day 5, growth was significantly reduced at 33 Hz versus controls, while 50 Hz was not significantly different. Antrum formation…
SnCl2-treated pBR322 plasmids exposed to EMF showed an EMF-dependent potentiation of DNA scission (appearance of relaxed plasmids). Plasmids pre-exposed to EMF were less capable of transforming Escherichia coli, and the authors conclude EMF in the presence of…
Among 41 patients, abnormal troponin T, CK-MB mass, and myoglobin were observed in 46%, 15%, and 44% immediately after the procedure, and in 64%, 22%, and 2% at 24 hours, respectively. Patients with abnormal troponin T at 24 hours had longer procedure times, …
In female rats, decimetric electromagnetic waves produced a marked hemodynamic effect with redistribution of intrarenal circulation. Exposure at 395 mW/cm2 was associated with dysregulation of intrarenal blood flow and morphological changes including hemodyna…
![[Use of super-high frequency electromagnetic fields on intrarenal circulation and morphological status of health kidneys (experimental study)].](/mel/og.php?f=og_3984_ed833f3efe.png)
Using biosensors and physicochemical techniques (NMR and spectrophotometry), the study reports evidence consistent with a nonthermal effect of microwaves on liquid water.
Across 24 exposed groups (50 Hz; 8.007–10.143 mT), the percentage of developmental anomalies was increased compared with sham-exposed and unexposed controls. Egg weight on day 9 did not differ significantly between control and exposed groups. Some exposure gr…
In normal mice, pain thresholds increased at night and decreased during daytime. Exposure to a 60 Hz magnetic field (20 G) for 24 h inhibited the nighttime increase in pain thresholds and produced hyperalgesia during daytime. Melatonin-induced increases in pa…
A theoretical calculation/analysis based on a "crowd model" suggests membrane action potential could be amplified under certain parameter conditions (k1, k2), potentially increasing ionic current and leading to electroporation or membrane breakage. The author…
![[Study on human sensitivity of extremely low frequency electromagnetic field].](/mel/og.php?f=og_3960_11280d85e7.png)
Roots grown in microgravity had higher growth rates than ground controls. Immediately upon application of an applied electric field, root elongation was inhibited in microgravity-grown roots.
In 35 consecutive patients, having a permanent pacemaker appeared to be a strong risk factor for developing superior vena cava syndrome after radiofrequency modification of the sinus node. Balloon venoplasty for this complication was reported to be as effecti…
In questionnaire-based analyses (Chi-square and logistic regression), time of using a cellular telephone handset was positively associated with depression (P<0.05), nausea (P<0.01), and loss of appetite (P<0.05). The authors conclude that long-time handset us…
![[Effects of electromagnetic radiation from cellular telephone handsets on symptoms of neurasthenia].](/mel/og.php?f=og_3941_49c6a779d7.png)
Magnetic field exposure was associated with an increase in hypothalamic NO (OD) in PVN, PEN, and SON, with elevated NO (OD) lasting for 3 hours. NADPH-d positive neurons and some NADPH-d/AVP dually stained neurons were observed in PVN, PEN, and SON but not in…
![[Influence of magnetic field on nitric oxide in hypothalamus and its relation to hypothalamic neuroendocrine nuclei].](/mel/og.php?f=og_3940_fe0e5182a9.png)