Wydorski PJ, Kozlowska W, Zmijewska A, Franczak A · 2024
Researchers exposed porcine endometrial slices to a 50 Hz ELF-EMF for 2 hours in vitro. They measured mRNA and protein levels of genes involved in DNA methylation, histone modification, and microRNA biogenesis. They also assessed EED and SUZ12 transcripts, global DNA methylation, and HDAC activity. Exposure changed the abundance of DNMT1, DNMT3a, EZH2, EED, SUZ12, global DNA methylation, HDAC activity, and microRNA biogenesis proteins.
Wydorski PJ, Kozlowska W, Zmijewska A, Franczak A · 2024
Polish researchers exposed pig uterine tissue to 50 Hz electromagnetic fields (the same frequency as power lines) for 2 hours and found significant changes in genes that control DNA methylation and other cellular processes. The EMF exposure altered multiple epigenetic mechanisms that regulate gene expression, potentially disrupting normal biological processes during early pregnancy implantation.
Unknown authors · 2024
Unknown authors · 2024
Researchers studied the impact of 2850 MHz electromagnetic field radiation on red and green cabbage seedlings, exposing them daily for seven days to homogeneous EMF-r for one, two, or four hours. Exposure caused dose-dependent reductions in root length, shoot length, and biomass in both cultivars compared with controls. Chlorophyll and carotenoid contents decreased significantly in both red and green cabbage. Phenolic, flavonoid, and anthocyanin contents increased with exposure duration in both cultivars. EMF-r produced oxidative stress shown by dose-dependent increases in total antioxidant activity, DPPH activity, H2O2 content, and MDA content, while antioxidant enzyme activities increased significantly.
Unknown authors · 2024
Researchers exposed 30 Aedes aegypti eggs to radiofrequency radiation at baseline, 900 MHz, and 18 GHz, with each frequency tested in triplicate. They assessed hatching responses, development times, larval numbers, and pupation periods until adult emergence. The 900 MHz group showed the highest hatching rate at 79 ± 10.54% and the lowest adult emergence rate at 33 ± 2.77%, with a significant difference between groups (p = 0.03).
Unknown authors · 2024
Unknown authors · 2024
Researchers isolated neural stem cells from the telencephalic wall of B6(Cg)-Tyrc-2J/J mouse embryos and divided them into three experimental groups and three controls. Each experimental group was exposed to 50Hz ELF-EMFs of varied strengths for 1 h. High-strength ELF-EMF significantly increased GFAP expression while low-strength ELF-EMF decreased it. High-strength ELF-EMF significantly increased β-3 tubulin immunoreactivity, while medium- and low-strength ELF-EMF decreased it. Medium-strength ELF-EMF significantly upregulated NES expression.
Unknown authors · 2024
Researchers exposed Chinese hamster lung fibroblast V79 cells to a 1950 MHz LTE signal at SAR values of 0.3 and 1.25 W/kg. Exposure to the LTE signal alone did not cause any measurable chromosomal damage, oxidative stress, or changes in cell cycle progression. A 20-hour pre-exposure at 1.25 W/kg before mitomycin-C treatment significantly reduced micronuclei, and ROS formation was significantly decreased at both SAR levels. Shorter pre-exposures, lower SAR, or continuous wave exposure did not alter mitomycin-C-induced micronuclei.
Unknown authors · 2024
Researchers evaluated effects of non-ionizing radiation from three cell phone towers on Allium cepa at five sites with different power densities and a zero-exposure control. Mean power densities at the five sites were 1.05, 1.18, 1.6, 2.73, and 12.9 μW/cm². A significant change in morphology, root length, fresh weight, and dry weight in Allium cepa was observed under the exposure at different sites. Protein content of roots showed significant difference for samples at all sites while bulbs at sites S4 and S5 when compared to control. The samples under exposure to radiation with maximum power density have shown maximum induction of oxidative stress and genotoxicity.
Unknown authors · 2024
Researchers exposed onion plants to radiation from actual cell phone towers at different distances, measuring power densities from 1.05 to 12.9 μW/cm². The study found significant cellular damage, oxidative stress, and genetic abnormalities in plants, with effects increasing as radiation exposure levels rose.
Unknown authors · 2024
Researchers exposed onion plants to cell phone and WiFi radiation at 1800 MHz and 2400 MHz for varying durations up to 8 hours daily over 7 days. They found that longer exposures reduced plant growth, altered protein production, triggered stress responses in cellular enzymes, and caused chromosomal damage in root cells. This demonstrates that even non-ionizing radiation at everyday wireless frequencies can produce biological effects including genetic damage.
Jamal et al. · 2024
Researchers conducted a randomized, triple-blind, crossover study with 44 healthy young volunteers exposed to 3.5 GHz signals at 1 to 2 V/m. Each session included baseline, exposure, and postexposure phases with seven runs of electrodermal activity recordings stimulated by beeps and skin temperature measurements at the hand, head, and neck. The study suggests a slight increase in head and neck temperature and minimal modulation of electrodermal metrics after exposure, though results remain within normal physiological range and could reflect an uncontrolled variable.
Popovičová A et al. · 2024
Female rats were exposed to MWR at a frequency of 2.45 GHz for 2 hours daily throughout pregnancy. The study examined the rostral migratory stream and the dentate gyrus of the hippocampus for cell proliferation and death, and also assessed nitrergic neuron differentiation in the RMS. Prenatal MWR exposure caused significant changes in the numbers of proliferating and dying cells that varied by offspring age and brain region. MWR attenuated the maturation of nitrergic neurons in the RMS in both juvenile and adult rats. Morphological alterations in neurogenesis were accompanied by changes in animal behavior.
Popovičová A et al. · 2024
Slovak researchers exposed pregnant rats to 2.45 GHz microwave radiation (WiFi frequency) for 2 hours daily throughout pregnancy. Their offspring showed significant disruptions in brain cell growth and development in key regions responsible for learning and memory, along with behavioral changes that persisted into adulthood.
Sissons SM, Dotta BT · 2024
Researchers exposed perinatal rats to tap water, L-arginine, or N-methylarginine, with half of each group also receiving a 7-Hz square-wave EMF at 5, 50, or 500 nT for 2 to 14 days after birth. Brains were harvested in adulthood at a mean age of 568.17 days and stained with Toluidine Blue O for neuronal counts in the hippocampus, cortices, amygdala, and hypothalamus. Histological analysis revealed a main EMF effect of increased neuronal counts in the secondary somatosensory cortex at low intensities, a significant increase in the left CA3 region in exposed females, and a significant increase in the right entorhinal cortex in exposed males.
Sissons SM, Dotta BT · 2024
Researchers exposed rats to 7 Hz electromagnetic fields during early brain development and found increased neuron counts in specific brain regions, with effects varying by sex. Male and female rats showed different patterns of brain changes, particularly in the hippocampus and sensory cortex areas. The findings suggest that low-frequency EMF exposure during critical developmental periods can alter brain structure in ways that persist into adulthood.
Unknown authors · 2024
Senavirathna MDHJ, Maimaiti Z · 2024
The study assessed the short-term impact of low-intensity 2.45 GHz exposure on young Arabidopsis thaliana plants. Plants were exposed to continuous wave 2.45 GHz microwaves at 1.0 ± 0.1 W m−2 for 48 hours in anechoic chambers. Exposure increased photosynthetic pigments, oxidative stress, guaiacol peroxidase activity, and ascorbic peroxidase activity, while catalase activity decreased. Photosystem efficiency remained unchanged, non-photochemical quenching increased, leaf morphology showed no significant changes, and genomic template stability was unaffected.
Sousouria G et al. · 2024
Wang et al. · 2024
Unknown authors · 2024
Researchers exposed mouse testosterone-producing cells (Leydig cells) to radiation from 4G phones and specific frequencies of 1800 MHz and 2450 MHz. After 2 hours of exposure, testosterone production dropped significantly and harmful free radicals increased, while cell survival wasn't affected. This suggests cell phone radiation could contribute to male fertility problems.
Mahmoudi R et al. · 2024
Researchers divided 32 adult male Wistar rats into four groups: control, RF-EMF alone, heat stress alone, and RF-EMF combined with heat stress. Rats in the RF-EMF group were exposed for 2 hours daily over 52 days, while the heat stress group received 10 minutes of heat per day for the same period. After 52 days, the combined RF-EMF and heat group showed significant improvements in testis volume, tubular epithelium, interstitium, cell counts, sperm quality, and Leydig cells compared with the heat-only group.
Unknown authors · 2024
Unknown authors · 2024
Researchers studied the content of biogenic amines, their precursors, and derivatives in the prefrontal cortex of male Wistar rats exposed to chronic low-intensity electromagnetic fields from a Wi-Fi device during early postnatal development. Changes in dopamine, serotonin, their precursors, and metabolites were established in the prefrontal cortex. These changes determine the development of neurotransmitter disorders in the central nervous system and subsequently behavioral disorders, deterioration of social adaptation, and cognitive abilities.
Unknown authors · 2024
Twenty-four male Balb/c mice were divided into four groups and the EMF groups were exposed to 2100-MHz EMF for 120 minutes per day over 30 days. After 30 days EMF exposure significantly reduced astrocyte diameter and increased GFAP expression in the cerebellar cortex. Crocin treatment improved astrocyte diameter and normalized GFAP expression.
