Unknown authors · 2024
Researchers created two groups of seven rats each, a sham control and an exposure group, and exposed the latter to 2100 MHz RF-EMF for five hours per day over 14 days. Histological examination of brain tissue from the exposed group revealed vascular alterations and significant edema. The comet assay showed much more cellular damage in the exposed group (18.26% tail DNA) than in controls (4.06% tail DNA). Testicular tissue showed significant deterioration of spermatogenic cells in the exposed group. Bax and bcl-2 mRNA levels differed significantly between groups, while p53 did not change.
Unknown authors · 2024
Researchers exposed rats to 2100 MHz radiofrequency radiation for 5 hours daily over 14 days, finding significant brain swelling, blood vessel changes, and DNA damage. The study also revealed deterioration in sperm-producing cells and changes in genes that control cell death. This frequency is close to what 3G and some 4G cell towers use.
Unknown authors · 2024
Unknown authors · 2024
Researchers exposed adipose-derived stem cells to a 50 Hz electromagnetic field at 1.5 mT for 24 and 48 hours. After 24 hours of exposure, N6-methyladenosine RNA methylation significantly increased. The expression of stem cell markers Nanog, Oct-4, Sox-2, CD44, and CD105 increased after 24 hours of exposure. Western blot analysis showed upregulation of p21 and DNMT2/TRDMT1 protein levels with no change in p53. Cell membrane flexibility, metabolic potential, and mitochondrial distribution, morphology, and metabolism were altered after 24 hours.
Unknown authors · 2024
Researchers exposed mouse zygotes to cell phone electromagnetic radiation at 900-1800 MHz for 30 minutes on day 1. Exposed embryos showed slower cleavage divisions, more abnormal cleavage patterns, and delayed blastocyst formation. Cell survival in blastocysts was lower in the exposed group.
Unknown authors · 2024
Researchers exposed SH-SY5Y neuronal-like cells and peripheral blood mononuclear cells to 2.45 GHz EMR for 24 hours with sulforaphane at 5, 10, and 25 µg/mL. Higher sulforaphane concentrations caused harmful effects and the compound showed a hormetic response in Nrf2, SOD2, and apoptosis markers.
Unknown authors · 2024
Researchers exposed brain-like cells and immune cells to 2.45 GHz WiFi radiation for 24 hours, finding it reduced cell survival and caused cellular damage. However, a low dose of sulforaphane (a compound from broccoli) protected the cells from this radiation damage. The protective effect only worked at low doses - higher concentrations of sulforaphane actually made things worse.
Sannino A et al. · 2024
This in vitro study exposed Chinese hamster lung fibroblast V79 cells to 1950 MHz LTE radiofrequency signals at two SAR levels (0.3 and 1.25 W/kg), alone and combined with the cytotoxic agent mitomycin-C, measuring chromosomal damage, oxidative stress, and cell cycle effects. RF exposure alone produced no detectable effects, but pre-exposure followed by mitomycin-C treatment at higher SAR levels resulted in reduced chromosomal damage and oxidative stress compared to mitomycin-C treatment alone.
Unknown authors · 2024
Researchers stimulated SH-SY5Y neuronal cells with hydrogen peroxide or amyloid-β peptide and activated N9 microglial cells with lipopolysaccharide or amyloid-β peptide. Cells were exposed to pulsed electromagnetic fields with a pulse duration of 1.3 ms and a frequency of 75 Hz. The fields defended SH-SY5Y cells against oxidative stress, mitochondrial damage, and cell death induced by amyloid-β or hydrogen peroxide. In microglia activated by lipopolysaccharide or amyloid-β, the fields reverted the reduction in mitochondrial potential, oxidative damage, and cell death.
Unknown authors · 2024
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
The study investigated the effects of 1850 MHz RF-EMF exposure at a specific absorption rate of 4.0 W/kg on cortical neurons in mice at postnatal day 28. Daily exposure for 4 weeks significantly reduced the number of mushroom-shaped dendritic spines in the prefrontal cortex. Prolonged exposure over 9 days gradually decreased postsynaptic density 95 puncta and inhibited neurite outgrowth in developing cortical neurons. Expression levels of genes associated with synapse formation, such as synaptic cell adhesion molecules and cyclin-dependent kinase 5, were reduced in the cerebral cortexes of exposed mice. Behavioral assessments using the Morris water maze revealed altered spatial learning and memory after the 4-week exposure period.
Unknown authors · 2024
Unknown authors · 2024
Researchers exposed young mice to cell phone radiation (1850 MHz) for 4 weeks and found significant brain damage including reduced connections between neurons and impaired learning and memory. The study used radiation levels of 4.0 W/kg, which is within current safety limits but still caused measurable harm to developing brain tissue.
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
Twelve male rats aged 21 days were randomly assigned to control and EMF groups, with the EMF group exposed to 0.9 GHz EMF for one hour a day over 25 days. Exposure increased kidney tissue volume and weight, total body weight, and levels of lipid peroxidation, glutathione, catalase, and superoxide dismutase in kidney tissue. Histopathological evaluation revealed cortical and medullary bleeding, widespread fibrosis, tubular dilatation and degeneration, glomerular damage, and degeneration of Bowman's membrane, podocytes, and mesangial cells.
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.
