Dalecki A, Verrender A, · 2021
Thirty-six adults participated in three experimental sessions with sham, low (1 W/kg), and high (2 W/kg) RF-EMF exposures. Resting EEG was recorded at baseline, during, and after exposure. Alpha power increase was greater for eyes open than eyes closed during both low and high exposures. There was also a trend for the increase to be larger at the end of the high exposure compared to the start.
Unknown authors · 2021
Researchers conducted a cross-sectional analysis of preadolescents aged 9-11 years and adolescents aged 17-18 years from the Dutch ABCD study (n=1664 preadolescents) and the Spanish INMA project (n=1288 preadolescents and n=261 adolescents). Overall whole-brain RF-EMF doses were estimated from mobile and DECT phone calls, other mobile phone uses, tablet use, laptop use, and far-field sources. Higher overall doses from all sources and from phone calls were associated with lower non-verbal intelligence in Dutch and Spanish preadolescents (-0.10 points per 100 mJ/kg/day increase, 95% CI -0.19 to -0.02), but no doses were related to any other cognitive outcome in Spanish preadolescents or adolescents.
Unknown authors · 2021
Thirty young men participated in a double-blind, sham-controlled crossover study with all-night 2.45 GHz Wi-Fi exposure. Declarative memory improved overnight with Wi-Fi exposure, but emotional and procedural memory were unaffected. No sleep-specific physiological parameters changed with exposure, so the behavioral effect lacked physiological support and may be a random finding.
Qin F, Cao H, Feng C, Zhu T, Zhu B, Zhang J, Tong J, Pei H · 2021
Researchers exposed four-week-old mice to 1800 MHz RF at 0.50 W/kg SAR in the morning and evening each day for three weeks. They measured pathological changes and functional indices in the testes. RF exposure reduced testicular weight, daily sperm production, and testosterone secretion. Morning exposure was associated with 615 differentially expressed lncRNAs, while evening exposure was associated with 183. Morning RF exposure lncRNAs were correlated with pathways including Fanconi syndrome, metabolic processes, cell cycle, DNA damage, and DNA replication.
Unknown authors · 2021
Researchers exposed peripheral blood cells from five male donors to a continuous 900 MHz electromagnetic field for up to 90 minutes. They measured expression of 667 microRNAs using a quantitative PCR array and compared the results to sham and hyperthermia controls. In the initial screening, two miRNAs — miR-194 at 30 minutes and miR-939 at 60 minutes — were down-regulated about two-fold and their p-values survived Bonferroni correction. A repeat experiment two years later found similar overall miRNA expression patterns but could not reproduce the previously identified differentially expressed miRNAs, and the authors concluded that the data do not support early miRNA changes or EMF-responsive individuals.
Unknown authors · 2021
Ghandehari M, Sadri D, Farhadi S · 2021
Researchers conducted a descriptive study on cell phone users at a dental faculty, using Papanicolaou staining of mucosal smears. The study analyzed 100 samples, finding micronucleus-containing cells at 2.94% ± 1.89% and micronuclei per cell at 1.02% ± 1.68%. Daily cell phone usage correlated significantly with both micronucleus measures (r = 0.70 for micronucleus-containing cells, r = 0.57 for micronuclei per cell, both P = 0.0001), while age and sex showed no significant correlation.
Unknown authors · 2021
One-hundred male volunteers were recruited and classified into two groups based on mobile phone usage. Group 1 used phones less than one hour per day for less than five years, while group 2 used phones more than one hour per day for more than five years. The higher-use group had significantly lower testosterone and superoxide dismutase and significantly higher luteinizing hormone, follicle-stimulating hormone, and malondialdehyde.
Unknown authors · 2021
During operation, mobile phones emit energy in the form of electromagnetic fields that can be absorbed by the user's head. Researchers studied the influence of mobile phone exposure on nervous response by analyzing electrophysiological measurements of brain wave activity. EEG test measurements were taken when the participant was not using and when using a mobile phone.
Unknown authors · 2020
A 2018 US National Toxicology Program study of about 3,000 rats and mice exposed for two years found exposed male rats developed gliomas in the brain and schwannomas in the heart while no control rats developed these tumors. The Ramazzini Institute found the same heart schwannomas in male rats exposed to lower radiation levels. A 2011 NIH study of 47 people found 50 minutes of cell phone radiation changed brain activity near the antenna.
Estimated whole-brain and lobe-specific radiofrequency electromagnetic fields doses and brain volumes in preadolescents Alba Cabré-Riera et al. · 2020
The study analyzed 2,592 preadolescents aged 9 to 12 years from the Generation R Study in Rotterdam, Netherlands. An integrated exposure model estimated whole-brain and lobe-specific radiofrequency electromagnetic field doses from sources such as phone calls, tablet use, laptop use, and far-field sources. The estimated overall whole-brain dose was 84.3 millijoules per kilogram per day, with the highest lobe-specific dose in the temporal lobe at 307.1 millijoules per kilogram per day. Overall doses from all sources, phone calls, and far-field sources were not associated with global, cortical, or subcortical brain volumes. However, higher whole-brain dose from mobile phone internet use, texting, tablet use, and wireless laptop use was associated with a smaller caudate volume.
Shih et al · 2020
This case-control study included 894 healthy controls and 211 breast cancer patients. Smartphone addiction was associated with a 1.43-fold higher risk of breast cancer, and using a smartphone for more than 4.5 minutes before bedtime was associated with a 5.27-fold higher risk compared to using it for 4.5 minutes or less. A closer distance between the smartphone and the breasts was associated with a 1.59-fold higher risk, and carrying the smartphone near the chest or waist-abdomen was associated with 5.03-fold and 4.06-fold higher risks, respectively, compared to carrying it below the waist.
Zhang M et al. · 2020
Vinod E, Kachroo U, Rebekah G, Thomas S, Ramasamy B · 2020
Unknown authors · 2020
Peng L, Fu C, Liang Z, Zhang Q, Xiong F, Chen L, He C, Wei Q · 2020
Unknown authors · 2020
The study investigated molecular events associated with the synergistic activity of PEMFs and BMP2 on osteogenic differentiation. Human MSCs were exposed to PEMFs at 75 Hz and 1.5 mT in combination with BMP2 at the minimal dose able to induce differentiation. Researchers analyzed changes in BMP signaling pathway gene expression and phosphorylation of downstream proteins including SMAD1/5/8 and MAPK. Results showed synergistic activity on osteogenic differentiation transcription factors and markers, with increased BMP2, BMP6, and BMP type I receptor gene expression and activation of SMAD1/5/8 and p38 MAPK.
Unknown authors · 2020
Thirty-two healthy young volunteers were allocated to three arms and exposed to [18F]FDG alone, a 3-T SMF alone, or both combined over 60 minutes at a PET/CT or PET/MRI system. Absorbed doses to lymphocytes exposed to [18F]FDG over 60 to 120 minutes varied between 1.5 and 3.3 mGy. The radiotracer caused a significant median relative increase of 28% in the rate of lymphocytes with at least one γH2AX focus relative to background, while the SMF alone did not. Simultaneous application of both agents did not result in a significant synergistic or antagonistic outcome.
Unknown authors · 2020
The trial enrolled 81 thermal power plant employees between July and November 2017 and randomly assigned them to four groups receiving vitamin E, vitamin C, both vitamins, or no intervention. Comet assay measurements showed that tail intensity and tail length decreased in the vitamin E group, and all comet assay indices except DNA damage index decreased in the combined and vitamin C groups, whereas the control group showed no significant change. Flow cytometry analysis found no change in early apoptosis, late apoptosis, or necrosis in any group after the intervention.
Unknown authors · 2020
Researchers surveyed pregnant women at a hospital in northern Iran about their cell phone use and attitudes. Most participants used cell phones, with only 3.1% being non-users and 6.052% not using during the first trimester. About 64.3% believed cell phones pose risks to the fetus, and awareness was linked to education, residency, and employment.
Unknown authors · 2020
Nakatani-Enomoto S et al. · 2020
Researchers studied the effects of LTE-like electromagnetic fields for 30 min on awake EEG. Thirty-eight healthy volunteers aged 20 to 36 years participated. The maximum local specific absorption rate averaged over 10-g mass was 2.0 W/kg. Theta and alpha band waves were enhanced after both real and sham exposures, which the authors suggested may be due to participant drowsiness. The study concluded that LTE-like exposure for 30 min showed no detectable harmful effects on awake EEG in healthy humans.
Eggert T, Dorn H, Sauter C, Schmid G, Danker-Hopfe H · 2020
Panagopoulos, D.J. · 2020
Researchers exposed lymphocytes from six healthy subjects to UMTS mobile phone radiation for 15 minutes during the G2/M phase at 1 cm distance during an active call. A high caffeine dose alone produced a similar but slightly smaller degree of chromatid-type aberrations. The combined exposure increased aberrations dramatically and the effect rose almost linearly with longer exposure durations.
Li Q, Tian M, Teng J, Gao P, Tang BQ, Wu H · 2020
Researchers investigated the effect of 2.6-5 MHz RF-EMF at below 0.1 mT on growth and viability of Saccharomyces cerevisiae. Growth increased 43.5% at 30 hours but decreased 20.7% at 89 hours. Cell viability improved 70.1% at 8 hours and reduced 33.5% at 28 hours. Superoxide accumulation increased with radiation time, which may explain the inhibition of viability and growth.
