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Showing results for: toxicity

Extremely Low-Frequency Electromagnetic Fields Increase Cytokines in Human Hair Follicles through Wnt/β-Catenin Signaling.

Research RF Safe Research Library Jan 1, 2022

This in vitro/ex vivo study examined extremely low-frequency EMF exposure in human hair bulb spheroids and hair follicle organ cultures. The authors report no toxicity and increased expression of anagen-related markers and multiple cytokines/growth factors at 5–20 G, with 10 G for 60 minutes associated with increased…

Synergistic effect of electromagnetic fields and nanomagnetic particles on osteogenesis through calcium channels and p-ERK signaling.

Research RF Safe Research Library Jan 1, 2021

This in vitro and animal study evaluated whether extremely low frequency EMF exposure (1 mT, 45 Hz, 8 h/day) combined with Fe-based nanomagnetic particles enhances osteogenesis. The authors report no detectable cytotoxicity and increased osteogenic markers/proteins with combined NMP + EMF exposure, alongside…

Impact of electromagnetic fields on in vitro toxicity of silver and graphene nanoparticles.

Research RF Safe Research Library Jan 1, 2019

This in vitro study examined whether RF electromagnetic fields (900, 2400, 7500 MHz) modify the toxicity of silver and graphene nanoparticles in human fibroblast cultures. The authors report EMF-associated changes in cytotoxicity and ROS that depended on nanoparticle type, shape, and concentration, with the strongest…

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…

Genotoxic and cytotoxic effects of 50 Hz 1 mT electromagnetic field on larval rainbow trout (Oncorhynchus mykiss), Baltic clam (Limecola balthica) and common ragworm (Hediste diversicolor).

Research RF Safe Research Library Jan 1, 2019

This animal study assessed genotoxic and cytotoxic responses in aquatic species exposed to a 50 Hz, 1 mT electromagnetic field. Nuclear abnormality assays indicated significant increases in multiple genotoxicity endpoints across species, with the most pronounced effects in Baltic clam gill cells. Cytotoxicity…

Effects of electromagnetic field, cisplatin and morphine on cytotoxicity and expression levels of DNA repair genes.

Research RF Safe Research Library Jan 1, 2018

This in vitro study examined how morphine, a 50-Hz 0.50 mT electromagnetic field (intermittent), and cisplatin co-treatments affected DNA repair gene expression and cytotoxicity in MCF-7 and SH-SY5Y cells. Morphine alone was reported to down-regulate examined DNA repair genes, whereas morphine plus EMF did not…

Evaluation of Cytotoxic and Genotoxic Effects of Extremely Low-frequency Electromagnetic Field on Mesenchymal Stromal Cells.

Research RF Safe Research Library Jan 1, 2018

This in vitro study evaluated whether a therapeutic extremely low-frequency EMF exposure (5 Hz, 0.4 mT) causes cytotoxic or genotoxic effects in a human mesenchymal stromal cell line. Cells were exposed for 20 minutes per day, three times per week, for two weeks and assessed for viability, proliferation, and…

Electromagnetic Field Could Protect SH-SY5Y Cells Against Cisplatin Cytotoxicity, But Not MCF-7 Cells.

Research RF Safe Research Library Jan 1, 2018

This in vitro study exposed MCF-7 and SH-SY5Y cells to a 50 Hz, 0.50 mT electromagnetic field in combination with cisplatin and/or morphine. The combined "CDDP+Mor+EMF" condition showed higher cisplatin IC values than cisplatin alone and "CDDP+Mor" in both cell lines, consistent with reduced cisplatin cytotoxicity.…

Biodegradable, pH-sensitive chitosan beads obtained under microwave radiation for advanced cell culture.

Research RF Safe Research Library Jan 1, 2018

This in vitro study describes microwave-assisted, green-chemistry synthesis of pH-sensitive chitosan beads crosslinked with a glutamic acid/1,5-pentanodiol mixture and optionally modified with Tilia platyphyllos extract. The beads were characterized (FT-IR, SEM), tested for swelling, pH sensitivity, antioxidant…

No adverse effects detected for simultaneous whole-body exposure to multiple-frequency radiofrequency electromagnetic fields for rats in the intrauterine and pre- and post-weaning periods.

Research RF Safe Research Library Jan 1, 2017

This animal study exposed pregnant Sprague-Dawley rats and their offspring to simultaneous whole-body multifrequency RF signals spanning 800 MHz to 5.2 GHz. Exposure occurred 20 hours per day from gestational day 7 to weaning, with F1 offspring exposed up to 6 weeks of age. Across multiple endpoints including growth,…

Effect of extremely low-frequency electromagnetic fields on antioxidant activity in the human keratinocyte cell line NCTC 2544.

Research RF Safe Research Library Jan 1, 2017

This in vitro study exposed human keratinocyte cells (NCTC 2544) to 50 Hz ELF-EMF at 0.25–2 G and assessed oxidative stress-related endpoints. Significant increases in ROS were reported at 0.5 and 1 G, with associated short-term changes in antioxidant and lipid peroxidation markers. The authors report that…

Cytotoxicity of temozolomide on human glioblastoma cells is enhanced by the concomitant exposure to an extremely low-frequency electromagnetic field (100Hz, 100G).

Research RF Safe Research Library Jan 1, 2017

This in vitro study tested whether an extremely low-frequency EMF (100 Hz, 100 G) could enhance temozolomide cytotoxicity in human glioma cell lines (U87 and T98G). The authors report that combined EMF and temozolomide increased apoptosis relative to either treatment alone and was accompanied by changes in…

Gold Nanocluster-Mediated Cellular Death under Electromagnetic Radiation.

Research RF Safe Research Library Jan 1, 2017

This study investigated 2 nm protein-stabilized gold nanoclusters in six mammalian cell types under 1 GHz electromagnetic field exposure. The authors report low intrinsic toxicity of the nanoclusters, but a significant decrease in cell viability when nanocluster-incubated cells were exposed to the 1 GHz field,…

A cross-sectional study on oxidative stress in workers exposed to extremely low frequency electromagnetic fields

Research RF Safe Research Library Jan 1, 2015

This cross-sectional study compared oxidative stress and genotoxicity biomarkers between 310 ELF-EMF-exposed inspection workers and 300 logistical staff controls. The authors report no statistically significant differences in antioxidant-related measures (T-AOC, GPx, SOD) or MDA, and no significant differences in…

Effects of a continuous electromagnetic field on wound healing in human airway.

Research RF Safe Research Library Jan 1, 2015

This in vitro study exposed BEAS-2B human bronchial epithelial cells to a 1.8-GHz continuous EMF at SAR 1.0 W/kg and assessed wound-healing related endpoints. EMF exposure decreased cell migration in a scratch assay compared with controls. The authors report no cytotoxicity, no inhibition of proliferation, and no…

Autophagy and enhanced chemosensitivity in experimental pancreatic cancers induced by noninvasive radiofrequency field treatment.

Research RF Safe Research Library Jan 1, 2014

This study tested noninvasive 13.56 MHz radiofrequency electric fields as a treatment adjunct for pancreatic ductal adenocarcinoma in cell lines and mouse xenograft models. The authors report RF exposure caused cytotoxicity in PDAC cells via autophagy (not apoptosis) and that normal pancreatic ductal epithelial cells…

Genetic damage in mammalian somatic cells exposed to radiofrequency radiation: a meta-analysis of data from 63 publications (1990-2005)

Research RF Safe Research Library Jan 1, 2008

A meta-analysis of 63 publications assessed whether radiofrequency (RF) radiation exposure is associated with genetic damage in mammalian somatic cells using multiple genotoxicity endpoints. Overall differences between RF-exposed and control conditions were reported as small, though statistically significant…

Noninvasive radiofrequency field-induced hyperthermic cytotoxicity in human cancer cells using cetuximab-targeted gold nanoparticles.

Research RF Safe Research Library Jan 1, 2008

This in vitro study reports that shortwave (MHz-range) RF exposure can induce strong cytotoxicity in EGFR-overexpressing human cancer cells when those cells have internalized cetuximab-targeted gold nanoparticles. Control nanoparticles showed minimal uptake and substantially lower cytotoxicity under RF exposure. An…

[Evaluation of the genotoxicity of the extremely low frequency-magnetic fields (ELF-MF) in workers exposed for professional reasons].

Research RF Safe Research Library Jan 1, 2007

This occupational study assessed whether extremely low frequency magnetic fields (ELF-MF) are associated with genotoxicity using cytogenetic assays in 109 workers. Comparisons across exposure strata, including a highest-exposed subgroup (TWA > 1 microT), found no significant differences in CA, SCE, or MN outcomes.…

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