Unknown authors · 2022
Researchers continuously exposed pregnant Sprague-Dawley rats and their offspring to 900 MHz GSM-modulated RF-EMR for 24 hours per day and assessed liver oxidative stress at postnatal days 1, 9, and 21. Exposure significantly raised MDA levels at PND9 and PND21, lowered catalase activity at all ages, reduced catalase amount and mRNA at PND1 and PND9, and decreased GPx activity at PND21. CytoSOD levels increased at PND9 and 21 while mitoSOD levels decreased at PND21, and both GPx level and mitoSOD activity were elevated at all ages. SOD1 mRNA expression rose at PND1 but fell at PND9 and 21, whereas GPx1 expression was consistently reduced in the exposed group.
Unknown authors · 2022
Researchers exposed human HEK293 cultured cells to a 1.8 GHz carrier frequency at amplitudes typical of household telecommunications. ROS concentrations increased significantly after 15 minutes of exposure and were localized to both nuclear and cytosolic compartments. qPCR analysis revealed altered gene expression of anti-oxidative enzymes SOD, GPX, and CAT, and oxidative enzyme Nox-2. Multiple genes responsive to static magnetic fields were also regulated by RF, suggesting common response mechanisms. Many RF effects showed evidence of hormesis with biphasic dose-response curves and blind spots at certain amplitudes.
Pagadala, P; Shankar, V and Sumathi, ME · 2022
Twelve male Sprague Dawley rats aged 10-12 weeks and weighing 180-220 grams were housed in a 12:12 hour light-dark cycle with ad libitum food and water. The study found a significant increase in NSE and MDA levels in rats exposed to RFEMR. The researchers concluded that mobile RFEMR causes oxidative stress and oxidative damage in SD rats.
Unknown authors · 2022
Unknown authors · 2022
The study used 24 adult male Swiss-Albino mice divided into Four groups of 6. The radiofrequency and adaptive response groups were exposed to a 900 MHz GSM signal at 0.339 W/kg for 4 h/day over 7 days. After the final exposure, bleomycin was injected intraperitoneally at 37.5 mg/kg and the mice were sacrificed 30 minutes later. Oxidative damage and antioxidant mechanisms were examined in blood, DNA-repair gene expression was measured in liver, and apoptosis was assessed in liver using the TUNEL method. The adaptive response group showed increased ROS and p53 and OGG-1 expression, decreased SOD, CAT and TAC levels, and reduced apoptosis.
Unknown authors · 2022
Researchers exposed two-week-old immature male chickens to non-thermal low-level 2.45 GHz microwave radiation for two hours per day over 30 days. Exposed chickens showed decreased testicular weight, volume, and gonado-somatic index, as well as a substantial reduction in seminiferous tubule diameter. Radiation exposure increased oxidative stress parameters, increased IL-1β immunoreactivity, decreased IL-10 immunoreactivity, and reduced ERα expression in testes.
Costantini E et al. · 2022
The study aimed to explore the therapeutic potential of different RF-EMF exposure setups to drive faster healing by evaluating keratinocyte migration, cytokines, and MMP expression. RF-EMF treatment promoted keratinocytes' migration and regulated the expression of genes involved in healing, such as MMPs, tissue inhibitors of metalloproteinases, and pro/anti-inflammatory cytokines, to improve WH.
Unknown authors · 2022
Bektas H, Algul S, Altindag F, Yegin K, Akdag Z, Dasdag S · 2022
Unknown authors · 2022
Eighty-one students were categorized into three groups based on daily mobile phone use: less than 20 minutes, 20 to 60 minutes, and more than 60 minutes. Salivary flow rate, IgA, and thiol levels showed no statistically significant differences among the three groups. Malondialdehyde (MDA) levels differed significantly across groups, with a significant pairwise difference between the 20–60 minute and over 60 minute groups.
Unknown authors · 2021
The review examines government standards adopted for human exposures for their applicability to wildlife. It states that existing environmental laws such as the National Environmental Policy Act and the Migratory Bird Treaty Act should be strengthened and enforced, and new laws written for increasing EMF exposures. Radiofrequency radiation exposure standards warrant more stringent controls given 5G signaling characteristics, and no current standards take wildlife into consideration. Numerous studies indicate low-level EMF exposures have adverse effects on orientation, migration, reproduction, and other behaviors, and cyto- and geno-toxic effects have long been observed.
Isabel López et al. · 2021
Researchers surveyed 268 residents in a Madrid neighborhood surrounded by nine telephone antennas and took 105 electromagnetic radiation measurements with a spectrum analyzer and isotropic antenna both outside and inside homes. The study found statistically significant associations between radiation exposure and headaches, nightmares, dizziness, instability episodes, sleep duration, and tiredness parameters. Cancer prevalence in the study population was 5.6%, which is 10 times higher than the general Spanish population.
Hardell & Carlberg · 2021
The paper discusses historical lessons from early warnings on cancer risks and lost prevention opportunities. It states that radiofrequency radiation has a cancer-causing effect and that decades of studies show increased human cancer risk. Based on three case-control studies of wireless phone use, the authors present a preventable fraction for brain tumors and note an increase in undefined brain tumors in Sweden, especially among ages 20–39, which they suggest may be linked to high wireless phone use among young people.
Unknown authors · 2021
Kim et al · 2021
The authors conducted a systematic review and updated meta-analysis following PRISMA guidelines. They evaluated 18 studies comprising 4280 samples. The outcome measures were sperm motility, viability, and concentration. Exposure to mobile phones was associated with reduced sperm motility, viability, and concentration. The decrease in sperm quality after RF-EMW exposure was not significant even when mobile phone usage increased.
Panagopoulos et al · 2021
Bertagna et al · 2021
The review systematically examined published evidence from the last two decades on EMF effects on neuronal ion channels per PRISM guidelines. The review included 22 papers identified from searches of three online databases. Changes in calcium homeostasis linked to voltage-gated calcium channels were the most frequently reported outcome of EMF exposure. The authors reported that EMF effects on neurons vary widely and depend on field frequency, exposure duration, and tissue properties such as voltage-gated channel expression.
Unknown authors · 2021
Researchers exposed hippocampal slices from Sprague-Dawley rats to 15 Hz/2 mT ELF-EMF in three modes (sinusoidal, single-frequency pulse, and rhythm pulse) for durations of 10, 20, 40, and 60 seconds. LTP was induced with 100 Hz high-frequency stimulation and measured via fEPSP recordings for 60 minutes using multi-electrode arrays after a 20-minute baseline. Compared to controls, all three ELF-EMF modes decreased LTP, and the inhibition increased with longer exposure durations. The continuous sinusoidal field produced the largest inhibitory effect, while the pulsed and rhythm-pulsed fields had similar effects.
Unknown authors · 2021
Both ELF-EMFs and microampere currents significantly reduced long-term potentiation. The effect of 0.1 μA current was similar to 100 Hz/2 mT ELF-EMFs, while 0.2 μA current had a stronger effect than 200 Hz/2 mT ELF-EMFs on high-frequency stimulation LTP.
Xia P, Zheng Y, Dong L, Tian C · 2021
Researchers investigated the effect of sinusoidal ELF-EMF on HeLa, ES-2, and DU-145 cancer cells. The exposure used a 50 Hz field at 1.3 mT for 15 and 30 minutes. ELF-EMF treatment raised reactive oxygen species levels in the cells. ES-2 cells showed upregulation of XRCC5 and increased TNF-α, RAD51, APE1, XRCC1, and NSUN2, while DU-145 cells had decreased BCL-2, HSP90, RAD51, and TNF-α and increased VIM and METTL3.
Shuo T et al. · 2021
Fifty-four male Wistar rats were randomly divided into four groups (control, low-intensity, moderate-intensity, and high-intensity) and exposed to static magnetic fields of 50 m T, 100 m T, and 200 m T for 1 hour per day over 15 consecutive days. Micro-PET imaging showed that moderate-intensity static magnetic fields could cause fluctuant changes in brain glucose metabolism that were intensity dependent. Western blot analysis detected the expression of HK1 and PFK1, and both enzymes significantly decreased after exposure. Open field testing revealed significant reductions in total distance, surrounding distance, activity time, and climbing and standing times. Brain histology after 15 exposures showed neuronal pyknosis, edema, and slight widening of the perivascular space.
Unknown authors · 2021
Unknown authors · 2021
Unknown authors · 2021
Researchers conducted a systematic literature search in PubMed and EMF-Portal through January 2019 and identified 15 articles published between 1997 and 2019. Eight principal investigators expressed willingness to provide their original data for a pooled analysis. A pooled study would have more than 80% power to detect a relative risk of 1.14 or higher for ALS and occupational ELF-MF exposure.
Unknown authors · 2021
