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441 posts

Behaviour and reproduction of Drosophila melanogaster exposed to 3.6 GHz radio-frequency electromagnetic fields

Research RF Safe Research Library Jan 1, 2025

This animal study assessed whether 3.6 GHz RF-EMF exposure affects behaviour and reproduction in adult Drosophila melanogaster, using micro-CT-based digital-twin dosimetry and numerical simulations. It reports no significant changes in locomotor activity after 5 days at 5.4–9 V/m and no effect on fecundity over 48 hours at the tested absorbed power. The authors note that effects could still be possible at other exposure levels or in different developmental stages.

Time-Dependence Effect of 2.45 GHz RF-EMR Exposure on Male Reproductive Hormones and LHCGR

Research RF Safe Research Library Jan 1, 2025

This animal study exposed male Sprague Dawley rats to 2.45 GHz Wi-Fi for varying daily durations over eight weeks and assessed reproductive hormones and LHCGR expression. Serum LH and testosterone did not differ significantly from controls, but LHCGR mRNA increased with longer exposure and LHCGR protein showed decreases with shorter exposures with partial improvement at 24 hours/day. The findings suggest molecular alterations in testicular tissue despite stable systemic hormone levels.

From adults to offspring: Wi-Fi RF-EMR exposure in adult zebrafish impairs reproduction and transgenerationally effects development and behavior of progeny

Research RF Safe Research Library Jan 1, 2025

This animal study examined Wi-Fi RF-EMR exposure in adult zebrafish (4 hours/day for 30 days) and assessed reproductive tissues and offspring outcomes. The abstract reports testicular and ovarian histopathological abnormalities in exposed adults. Offspring from exposed parents, maintained under EMF-free conditions, reportedly showed increased mortality, morphological abnormalities, and anxiety-like behavior, with malformations increasing with longer parental exposure.

Modeling the interplay between myelin architecture and local electromagnetic fields

Research RF Safe Research Library Jan 1, 2025

This engineering/modeling study developed a 3D myelin microstructure model using finite element analysis and high-resolution imaging to simulate local electromagnetic field distributions. It reports that myelin architecture substantially shapes the distribution of electromagnetic fields across neural tissues. The authors suggest these field variations could potentially serve as non-invasive indicators of myelin integrity and may support tracking neurodegenerative disease progression.

Electrical oscillations in microtubules

Research RF Safe Research Library Jan 1, 2025

This study introduces a multi-scale electrokinetic model to characterize electrical impulses and ionic current propagation along microtubules, incorporating atomistic protein details and biological environments. It emphasizes nanopore-mediated coupling between microtubule surfaces as a key mechanism enabling luminal currents, energy transfer, amplification, and oscillatory dynamics. The authors report pharmacological inhibition experiments (Taxol and Gd3+) supporting the interpretation that nanopores function as active nanogates contributing to transistor-like behavior.

Role of visual and non-visual opsins in blue light-induced neurodegeneration in Drosophila melanogaster

Research RF Safe Research Library Jan 1, 2025

This animal study used Drosophila knockout lines to examine whether visual (Rh1) versus non-visual (Rh7) opsins contribute to blue-light-associated neural damage. Flies were continuously exposed to 488 nm blue light from egg deposition to 20 days, and brain DNA damage and vacuolisation were assessed. The study reports greater DNA damage and neurodegeneration markers in Rh1 knockout flies than in wild-type or Rh7 knockout flies, and concludes Rh1 is a predominant mediator of blue-light-induced neurotoxicity in the fly CNS.

Non-thermal biological effects of radiofrequency electromagnetic radiation: Mechanistic insights into male reproductive vulnerability in the era of ubiquitous exposure

Research RF Safe Research Library Jan 1, 2025

This narrative review discusses proposed non-thermal mechanisms by which chronic, low-intensity RF-EMR from ubiquitous wireless sources may affect male reproductive health. It highlights oxidative stress, mitochondrial dysfunction, impaired testosterone synthesis/steroidogenesis, and declines in sperm quality as reported outcomes. The authors argue that current SAR/thermal-based guidelines may not capture these endpoints and call for updated standards and precautionary measures.

Radiofrequency radiation-induced gene expression

Research RF Safe Research Library Jan 1, 2025

This review summarizes studies reporting radiofrequency radiation (RFR)-associated changes in gene expression across biological systems. Reported affected genes relate to cellular stress responses, oxidative processes, apoptosis, DNA damage detection/repair, protein repair, and neural function regulation. The authors highlight reported gene expression effects at or below 0.4 W/kg SAR and argue this challenges current guideline assumptions, while noting that not all studies find significant effects.

Electromagnetic fields and oxidative stress: The link to the development of cancer, neurological diseases, and behavioral disorders

Research RF Safe Research Library Jan 1, 2025

This review discusses epidemiological and mechanistic reports linking EMF exposure with oxidative stress and disease risk, and introduces an Electromagnetic Pathogenesis (EMP) conceptual model. The model proposes that non-ionizing EMFs increase mitochondrial electron leakage via electron tunneling, raising free radical production and oxidative stress. The authors argue oxidative stress is a primary mechanism connecting EMF exposure to cancer, cardiovascular, neurodevelopmental/neurodegenerative diseases, and behavioral/reproductive effects, and suggest reducing exposure may lower risk.

Transition Pathways Towards Electromagnetic Sustainability in the Built and Lived Environment

Research RF Safe Research Library Jan 1, 2025

This paper discusses electromagnetic (EM) fields as an environmental health and sustainability issue in the built and lived environment, particularly with expanding ICT and energy systems. It reports conducting a literature review and EM field audits in three locations across two cities in Canada and the UK to examine exposure trends and review major safety guidelines. The authors propose transition pathways toward “electromagnetic sustainability,” emphasizing planning, exposure reduction, and risk governance.

Brain Tumor and Mobile Phone Risk Among Young People: Analysis of Japanese People Using the MOBI-Kids International Case-Control Study

Research RF Safe Research Library Jan 1, 2025

This Japanese case-control study within the MOBI-Kids framework examined mobile phone use and brain tumor risk among people aged 10–29 years in the Kanto region. Using logistic regression adjusted for age and sex, it reports no increased brain tumor risk associated with mobile phone use, including analyses considering weighted output power and technical characteristics. The authors highlight possible recall bias and limited power in sub-analyses and recommend ongoing research as wireless technologies change.

The Influence of Mobile Technologies on the Quality of Sleep

Research RF Safe Research Library Jan 1, 2025

This study assessed whether sleeping with versus without a mobile phone (two-week intervals) affects sleep in medical students, using smartwatch-based monitoring. It reports no statistically significant differences in sleep quality or time spent in wakefulness, REM, light, or deep sleep between conditions. The authors report a statistically significant effect on minimum and average blood oxygen saturation during sleep and call for further research on nightly RF-EMF exposure.

Symptoms associated with environmental factors are positively related to sensory-processing sensitivity

Research RF Safe Research Library Jan 1, 2025

This cross-sectional survey of 491 participants examined symptoms associated with environmental factors, including perceived sensitivity to electromagnetic fields. Psychological traits (somatic symptom distress, somatosensory amplification, body awareness, and sensory-processing sensitivity) were positively related to each symptom domain, including EMF sensitivity. The authors conclude that sensory-processing sensitivity may be an important psychological factor associated with these symptom reports.

Effects of Simultaneous In-Vitro Exposure to 5G-Modulated 3.5 GHz and GSM-Modulated 1.8 GHz Radio-Frequency Electromagnetic Fields on Neuronal Network Electrical Activity and Cellular Stress in Skin Fibroblast Cells

Research RF Safe Research Library Jan 1, 2025

This in-vitro study exposed primary cortical neurons and human immortalized skin fibroblasts to simultaneous 5G-modulated 3.5 GHz and GSM-modulated 1.8 GHz RF-EMF at SARs of 1 or 4 W/kg. It reports no significant changes in neuronal network firing/bursting activity and no alteration of mitochondrial ROS in fibroblasts. Stress-related signaling readouts showed only minor, threshold-level variations without a consistent pattern, and no HSF1 activation was observed. Overall, the authors conclude there is no strong evidence of biological effects under these exposure conditions.

Male Reproductive and Cellular Damage After Prenatal 3.5 GHz Radiation Exposure: One-Year Postnatal Effects

Research RF Safe Research Library Jan 1, 2025

This animal study examined whether prenatal exposure to 3.5 GHz radiofrequency radiation (2 hours/day) affects male reproductive outcomes later in life. Male rat offspring assessed at 12 months showed multiple adverse testicular and cellular findings in exposed groups versus sham controls, including impaired spermatogenesis markers, increased abnormal sperm morphology, increased DNA damage, and increased apoptosis, with full-gestation exposure generally most pronounced. The authors interpret the results as evidence of persistent reproductive toxicity from prenatal exposure and call for further mechanistic work and precautionary actions.

Synergistic Effects of 2600 MHz Radiofrequency Exposure and Indomethacin on Oxidative Stress and Gastric Mucosal Injury in Rats

Research RF Safe Research Library Jan 1, 2025

This rat study tested whether 2600 MHz radiofrequency field exposure interacts with indomethacin to affect gastric tissue. Both exposures alone were reported to increase oxidative stress and reduce antioxidant markers in the stomach. Co-exposure was reported to intensify oxidative stress, apoptosis, and histological gastric mucosal injury compared with either factor alone, consistent with a synergistic detrimental effect in this model.

Effect of Electromagnetic Field on Oral Tissues: A Narrative Review

Research RF Safe Research Library Jan 1, 2025

This narrative review explores potential links between EMF exposure, metallic or mixed-metal dental restorations, and reported systemic and neurological symptoms despite normal diagnostic findings. It discusses hypothesized quantum-biological mechanisms (including spin dynamics and radical-pair mechanisms) that could mediate interactions between EMFs and dental metals. The authors conclude that the complexity of these interactions warrants more rigorous research and emphasize that a possible health-risk link should not be ignored.

Electromagnetic Field Stimulation Effects on Intrinsically Disordered Proteins and Their Role in Aging and Neurodegeneration

Research RF Safe Research Library Jan 1, 2025

This review discusses preclinical studies suggesting non-ionizing EMF exposures can produce beneficial biological effects, while noting ongoing controversy about mechanisms. It reports evidence of EMF-associated conformational changes in intrinsically disordered proteins relevant to neurodegeneration and describes RF exposure conditions that activate proteostasis and autophagy in cell and animal models. The authors propose a quantum-biophysical framework involving the water-protein interface and suggest potential human applications within regulatory safety thresholds.

RF-EMF Exposure Assessment: Comparison of Measurements in Airports and Flights with and Without Wi-Fi Service

Research RF Safe Research Library Jan 1, 2025

This exposure assessment used personal exposimeters to measure RF-EMF levels in the 2.4 GHz and 5.85 GHz Wi-Fi bands in airport terminals and during four international flights, including flights with and without onboard Wi-Fi service. Reported mean exposures varied by route but were described as substantially below an international reference level (10 W/m²). The authors conclude exposure is low while also recommending ongoing monitoring and precaution due to potential health concerns mentioned as emerging evidence.

Exposure Variability Between 1- or 6-Minute and 30-Minute Averaging Time Lengths in Radiofrequency-Electromagnetic Field Exposure Monitoring

Research RF Safe Research Library Jan 1, 2025

This exposure assessment study compared RF-EMF measurements averaged over 1, 6, and 30 minutes using contiguous 1-minute data collected over 30 minutes at four indoor/outdoor sites across 15 frequency bands. Relative deviations between shorter averaging times and 30-minute averages were largely within ±3 dB. However, statistical comparisons of overall exposure variability between 1- or 6-minute and 30-minute averaging produced inconsistent results, with broadcast and most mobile services <2 GHz appearing broadly similar between 1- and 6-minute averaging.

Visualizing radiofrequency electromagnetic field exposure through Voronoi-based maps

Research RF Safe Research Library Jan 1, 2025

This exposure-assessment study proposes a Voronoi-diagram approach to visualize RF-EMF exposure across a city using personal exposimeter measurements of RMS electric field at seed points. Most mapped areas corresponded to about 1.9 V/m, with a maximum reported value of 11.4 V/m, all below the cited ICNIRP guideline level. The authors conclude the method is useful for communicating spatial variability, while also noting broader literature discussing potential health risks from EMF exposure.

Empowering the Serbian EMF RATEL System for Monitoring RF-EMF Through Drive Test

Research RF Safe Research Library Jan 1, 2025

This engineering/monitoring paper describes enhancements to the Serbian EMF RATEL system, which has continuously monitored RF-EMF since 2017, by adding drive test functionality to improve spatial coverage. The authors report preliminary quantitative drive test measurements and validation of the upgraded approach. The work emphasizes that characterizing spatial and temporal RF-EMF patterns can support exposure assessment relevant to public health risk evaluation.

Thermal and SAR-Based Limits for Human Skin Exposed to Terahertz Radiation

Research RF Safe Research Library Jan 1, 2025

This conference paper uses COMSOL Multiphysics simulations to evaluate thermal and SAR-based exposure limits for modeled human skin exposed to terahertz radiation (0.1–5 THz). The authors report negligible temperature increases at power densities consistent with keeping SAR below 1.6 W/kg, but note that higher power densities can yield minimal heating while producing SAR values above recognized safety thresholds. They conclude that existing sub-THz standards are not directly transferable to the full THz band and call for updated guidelines, especially for prolonged exposure.

Prolonged 3.5 GHz and 24 GHz RF-EMF Exposure Alters Testicular Immune Balance, Apoptotic Gene Expression, and Sperm Function in Rats

Research RF Safe Research Library Jan 1, 2025

This rat study examined 60-day RF-EMF exposure at 3.5 GHz and 24 GHz for 1 or 7 hours per day and assessed testicular cytokines, apoptosis-related gene expression, and sperm quality. The authors report changes consistent with altered immune signaling and pro-apoptotic pathways, alongside reduced sperm parameters (frequency- and duration-dependent). The conclusion frames these findings as an EMF safety concern and suggests longer daily exposure worsened negative effects.

The effect of Wi-Fi on elastic and collagen fibres in the blood vessel wall of the chorioallantoic membrane

Research RF Safe Research Library Jan 1, 2025

This animal experimental study exposed chicken embryos (CAM) continuously to 2.4 GHz Wi-Fi at an average power density of 300 μW/m2 for 9 or 14 embryonic days. H&E staining reportedly showed no significant structural differences in large vessel walls versus controls. However, special staining reported decreased optical density of elastic fibers at both time points and changes in collagen fiber optical density (increase at day 9, decrease at day 14). The authors conclude Wi-Fi exposure can alter fibrous vessel wall components and suggest potential relevance to cardiovascular disorders.

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