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Showing results for: 50 MHz

Immunohistochemical, Biochemical and Genetic Evaluation of the Effects of Ginseng Administration on Blood–Brain Barrier in Rats Exposed to 2100 MHz and 2450 MHz Electromagnetic Radiation

Research RF Safe Research Library Feb 27, 2026

This rat study examined effects of 2100 MHz and 2450 MHz EMF exposure on the bloodbrain barrier-related brain outcomes and whether ginseng modifies these effects. EMF exposure (1 h/day for 30 days) was reported to induce apoptosis in brain tissue, with decreased COX-2 gene expression and increased BAX protein.…

Measurement of Outdoor Micro-Environmental Radio Frequency Electromagnetic Field Exposure Levels in Daily Life Using a Portable Measurement Device

Research RF Safe Research Library Jan 1, 2026

This exposure assessment measured outdoor micro-environment RF-EMF levels in daily-life settings across urban and suburban locations in Japan using a portable device (50 MHz–6 GHz) with GPS. Reported exposure levels were higher in urban areas, with railway stations showing the highest levels among the environments…

Dosimetric Electromagnetic Safety of People With Implants: A Neglected Population?

Research RF Safe Research Library Jan 1, 2025

This dosimetric study evaluated whether existing EM safety guidelines protect individuals with conductive implants by assessing implant-related local field enhancements. Across 10 kHz to 1 GHz, the authors report large increases in psSAR10mg and local electric fields near implants, particularly below 100 MHz. In…

Evaluation of the Thyroids of Offsprings Exposed to 2450 MHz Radiofrequency Radiation During Pregnancy: A Sixth Month Data

Research RF Safe Research Library Jan 1, 2024

This animal study examined whether continuous prenatal exposure to 2450 MHz radiofrequency radiation (simulating Wi‑Fi) affects thyroid tissue in rat offspring at 6 months. The exposed group showed significantly increased mononuclear cell infiltration and vascular congestion in thyroid histology. TUNEL-positive cell…

Exposure to Radiofrequency Induces Synaptic Dysfunction in Cortical Neurons Causing Learning and Memory Alteration in Early Postnatal Mice.

Research RF Safe Research Library Jan 1, 2024

This animal study examined 1850 MHz RF-EMF exposure (SAR 4.0 W/kg) in early postnatal mice and assessed synaptic and behavioral outcomes. The abstract reports reductions in dendritic spine maturation markers, decreases in PSD-95 puncta, inhibited neurite outgrowth, and downregulation of synapse-related genes in…

Exposure to mobile phone radiations at 2350 MHz incites cyto- and genotoxic effects in root meristems of .

Research RF Safe Research Library Jan 1, 2019

This experimental study exposed onion root meristems to continuous 2350 MHz radiofrequency EMF for 1, 2, or 4 hours and assessed cytotoxicity and genotoxicity. It reports increased mitotic index at 4 hours and increased chromosomal aberrations at exposures of 2 hours or longer, with some comet assay DNA distribution…

Early exposure to radiofrequency electromagnetic fields at 1850 MHz affects auditory circuits in early postnatal mice.

Research RF Safe Research Library Jan 1, 2019

This animal study examined early postnatal mice after exposure to 1850 MHz RF-EMF and measured synaptic activity in brainstem auditory circuitry. The abstract reports increased spontaneous postsynaptic current frequency and amplitude in MNTB principal cells, with accompanying presynaptic changes in the calyx of Held…

Impact of Long-Term RF-EMF on Oxidative Stress and Neuroinflammation in Aging Brains of C57BL/6 Mice.

Research RF Safe Research Library Jan 1, 2018

This animal study exposed 14-month-old C57BL/6 mice to 1950 MHz RF-EMF (SAR 5 W/kg) for 8 months. The authors report that aging was associated with increased oxidative damage, DNA damage, apoptosis, and glial activation markers in brain tissue. Long-term RF-EMF exposure did not change these markers in aged mice and…

Effects of 1950 MHz radiofrequency electromagnetic fields on Aβ processing in human neuroblastoma and mouse hippocampal neuronal cells.

Research RF Safe Research Library Jan 1, 2018

This in vitro study exposed HT22 mouse hippocampal neuronal cells and SH-SY5Y human neuroblastoma cells to 1950 MHz RF-EMF at SAR 6 W/kg for 2 hours per day over 3 days. RF-EMF exposure reduced mRNA levels of several Aβ-processing genes in HT22 cells, but did not change APP mRNA in SH-SY5Y cells. Protein levels of…

After-effect induced by microwave radiation in human electroencephalographic signal: a feasibility study.

Research RF Safe Research Library Jan 1, 2018

This feasibility study tested whether microwave radiation (450 MHz, 40 Hz modulation; 1 g peak spatial average SAR 0.3 W/kg) can induce detectable event-related potentials in EEG. In one subject across four sessions, EEG responses time-locked to exposure offset showed increased alpha-band signal and about a twofold…

The role of the location of personal exposimeters on the human body in their use for assessing exposure to the electromagnetic field in the radiofrequency range 98-2450 MHz and compliance analysis: evaluation by virtual measurements

Research RF Safe Research Library Jan 1, 2015

This study used numerical modeling with a human body model to evaluate how the placement of a single body-worn personal exposimeter affects RF electric-field measurements in the 98–2450 MHz range. Across 256 simulated exposure scenarios, the body substantially altered measured values compared with the unperturbed…

Near-field radiofrequency electromagnetic exposure assessment

Research RF Safe Research Library Jan 1, 2015

This paper presents a near-field RF exposure assessment method comparing standard SAR estimation from E-field measurements in tissue-simulating liquid with a proposed approach based on incident H-field measurements. Experiments were conducted at 900, 1800, and 2450 MHz using dipole antennas and a flat phantom, with…

Effect of 950 MHz UHF electromagnetic radiation on biomarkers of oxidative damage, metabolism of UFA and antioxidants in the livers of young rats of different ages

Research RF Safe Research Library Jan 1, 2014

This animal study exposed rats of different early-life ages to 950 MHz UHF electromagnetic radiation for 30 minutes per day (SAR 1.0–1.3 W/kg) across gestation and/or early postnatal periods. The authors report no evidence of oxidative stress by TBARS or protein carbonyls, but report changes in fatty acid…

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