Effects of long-term exposure to an extremely low frequency magnetic field (15 µT) on selected blood coagulation variables in OF1 mice.
Effects of long-term exposure to an extremely low frequency magnetic field (15 µT) on selected blood coagulation variables in OF1 mice. Electromagn Biol Med. 2019 Jul 13;:1-8 Authors: Vallejo D, Hidalgo MA, Hernández JM Abstract The long-term exposure of OF1 mice to an extremely low frequency magnetic field (ELF-MF; 50 Hz, 15 µT [rms]) has been associated with the appearance of leukaemia. Neoplasms are usually accompanied by changes in haemostatic processes but reports on changes in blood coagulation following exposure to an ELF-MF are scarce and rather fragmentary. The aim...
Source: Electromagnetic Biology and Medicine - July 16, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Mobile phone antenna-matching study with different finger positions on an inhomogeneous human model.
Authors: Jeladze V, Nozadze T, Petoev-Darsavelidze I, Partsvania B Abstract The human head and hand being in the near-field zone of a mobile phone antenna can drastically influence the antenna matching with free space. The goal of the presented research is to study this phenomenon on an inhomogeneous human model for different relative positions and distances of hand and fingers when using a mobile phone. The only safety criteria commonly used to estimate RF exposure impact on humans is the specific absorption rate (SAR). Its limits are determined by the Federal Communication Commission (FCC) in the USA and the Inte...
Source: Electromagnetic Biology and Medicine - July 16, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

The impact of exposure of diabetic rats to 900 MHz electromagnetic radiation emitted from mobile phone antenna on hepatic oxidative stress.
Authors: Ismaiil LA, Joumaa WH, Moustafa ME Abstract The excessive exposure of patients with type 2 diabetes mellitus (T2DM) to electromagnetic radiation (EMR) from mobile phones or their base stations antenna may influence oxidative stress and development of diabetic complications. Here, we investigated the effects of exposing type 2 diabetic rats to EMR of 900 MHz emitted from GSM mobile phone antenna for 24 hours/day over a period of 28 days on hyperglycemia and hepatic oxidative stress. Male Sprague-Dawley rats were divided into 4 groups (12 rats/group): control rats, normal rats exposed to EMR, ...
Source: Electromagnetic Biology and Medicine - July 16, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Methyl and methylene vibrations response in amino acids of typical proteins in water solution under high-frequency electromagnetic field.
Authors: Calabrò E, Magazù S Abstract The aim of this paper was to study the response of methyl (CH3) and methylene (CH2) vibration bands in amino acids of some typical proteins diluted in bidistilled water solution after exposure to a high-frequency electromagnetic fields using Fourier Transform Infrared (FTIR) Spectroscopy. Hemoglobin in H2O solution and bovine serum albumin and myoglobin diluted in different D2O solutions were exposed for 4 h to a power density of 0.95 W/m2 at the frequency of 1750 MHz, emitted by operational mobile phones Nokia model 105 and Samsung model GT-E1270, in order to stu...
Source: Electromagnetic Biology and Medicine - July 14, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Impact of extremely low-frequency electromagnetic field (100 Hz, 100 G) exposure on human glioblastoma U87 cells during Temozolomide administration.
Authors: Ahmadi-Zeidabadi M, Akbarnejad Z, Esmaeeli M, Masoumi-Ardakani Y, Mohammadipoor-Ghasemabad L, Eskandary H Abstract Glioblastoma multiforme (GBM) is a highly malignant brain tumor with an extremely dismal prognosis, a median survival is12 months. Temozolomide (TMZ) is an alkylating agent widely used to treat cancer, resistance to this drug is often found. One unexplored possibility for overcoming this resistance is a treatment based on concomitant exposure to electromagnetic fields (EMF) and TMZ. Indeed, many evidences show that EMF affects cancer cells and drug performance. Therefore, the present study was...
Source: Electromagnetic Biology and Medicine - June 12, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

The effects of pulsed electromagnetic fields combined with a static magnetic intramedullary implant on the repair of bone defects: A preliminary study.
This study provides a new idea of magnetic field intervention, and also preliminarily verifies the feasibility of adding magnetic field to traditional orthopedic implant materials. However, the magnetic field strength of implanted materials still needs to be further refined. PMID: 31155966 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - June 5, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Microwave diathermy induces mitogen-activated protein kinases and tumor necrosis factor- α in cultured human monocytes.
Microwave diathermy induces mitogen-activated protein kinases and tumor necrosis factor-α in cultured human monocytes. Electromagn Biol Med. 2019 May 11;:1-12 Authors: Lagoumintzis G, Andrikopoulos A, Adamopoulos A, Seimenis I, Koutsojannis C Abstract Although rehabilitation practice for most patients consists of a combined use of thermotherapy that is produced from diathermy devices resulting faster and deeper heating to the patient, major concerns about occupational exposure to electromagnetic radiation for the operators must be considered. In most occasions, physiotherapists have involved mult...
Source: Electromagnetic Biology and Medicine - May 15, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

ION cyclotron resonance: Geomagnetic strategy for living systems?
Authors: Liboff AR Abstract Except for relatively few polarity reversals the magnitude of the magnetic dipole moment of the earth has remained constant since life first began, allowing evolutionary processes to integrate the geomagnetic field (GMF) into several biological functions. One of these, bearing the classical signature of an ion cyclotron resonance (ICR)-like interaction, results in biological change associated with enhanced proton transport. The wide range of cation masses over which this effect is found suggest a fundamental biological dependence on the GMF, one that functions equally well for electric a...
Source: Electromagnetic Biology and Medicine - May 1, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

The effects of extremely low-frequency electromagnetic fields on c-Maf, STAT6, and ROR α expressions in spleen and thymus of rat.
In conclusion, low magnetic flux densities of ELF-EMFs may reduce the expression levels of c-Maf, STAT6, and RORα genes in the spleen. PMID: 31017814 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - April 26, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Effects of a brain tumor in a dispersive human head on SAR and temperature rise distributions due to RF sources at 4G and 5G frequencies.
Authors: Kaburcuk F Abstract In this paper, effects of a brain tumor located in a dispersive human head model on specific absorption rate (SAR) and temperature rise distributions due to different types of RF sources at 4G and 5G cellular frequencies are investigated with the use of a multiphysics model. This multiphysics model analyzes the dispersive human head with the brain tumor and provides the SAR and temperature rise distributions in the head due to the RF source operated at 4G and 5G cellular frequencies in a single finite-difference time-domain simulation. An adjacent antenna operated at 4G and 5G cellular ...
Source: Electromagnetic Biology and Medicine - March 22, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Effects of extremely low-frequency electromagnetic fields on B16F10 cancer cells.
Authors: Tang JY, Yeh TW, Huang YT, Wang MH, Jang LS Abstract This paper presents a method to inhibit B16F10 cancer cells using extremely low-frequency electromagnetic fields (ELF-EMFs) and to evaluate cell viability using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay. The study examined the effect of a natural EMF resonance frequency (7.83 Hz) and a power line frequency (60 Hz) on B16F10 cancer cells for 24 and 48 h. The B16F10 cancer cells were also exposed to sweep frequencies in several sweep intervals to quantitatively analyze the viability of cancer cells. The result...
Source: Electromagnetic Biology and Medicine - March 22, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Enhancement of natural killer cell cytotoxicity by using static magnetic field to increase their viability.
This study explores the potential for enhancing the killing ability of NK cells by co-culturing the NK cells with the target cells under a static magnetic field (SMF). In this study, NK92-MI cell lines were cultured in the presence of a 0.4-T SMF. The effect of the SMF on NK cell viability was evaluated by means of an MTT assay. Culturing tests were performed with inhibitors of the DAG/IP3, STAT3, ERK, JNK and p38 pathways in order to examine the possible signaling cascade responsible for the SMF effect on the NK92-MI cell viability. Finally, the effect of the SMF on the cytotoxicity of the NK92-MI cells was evaluated by c...
Source: Electromagnetic Biology and Medicine - March 22, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Effects of pulsed electromagnetic fields on learning and memory abilities of STZ-induced dementia rats.
CONCLUSIONS: Our findings indicate that the pulsed EMF exposure can improve the ability of learning and memory in STZ-induced dementia rats and this effect may be related to the process of IGF signal transduction, suggesting a potential role for the pulsed EMF for the amelioration of cognition impairment. PMID: 30880541 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - March 20, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

A modified magnetic resonance wireless power transfer system for capsule endoscopy.
CONCLUSIONS: The obtained results indicate that the proposed system meets the medical standards requirements. PMID: 30873888 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - March 17, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Effect of 900-, 1800-, and 2100-MHz radiofrequency radiation on DNA and oxidative stress in brain.
In conclusion, 900-, 1800-, and 2100-MHz RFR emitted from mobile phones may cause oxidative damage, induce increase in lipid peroxidation, and increase oxidative DNA damage formation in the frontal lobe of the rat brain tissues. Furthermore, 2100-MHz RFR may cause formation of DNA single-strand breaks. PMID: 30669883 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - January 25, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

A comprehensive overview on utilizing electromagnetic fields in bone regenerative medicine.
Authors: Azadian E, Arjmand B, Khodaii Z, Ardeshirylajimi A Abstract Stem cells are one of the most important sources to develope  a new strategy for repairing bone lesions through tissue engineering. Osteogenic differentiation of stem cells can be affected by various factors such as biological, chemical, physiological, and physical ones. The application of ELF-EMFs has been the subject of many research in bone tissue engineering and evidence suggests that this exogenous physical stimulus can promote osteogenic differentiation in several types of  cells. The purpose of this paper is to review the current ...
Source: Electromagnetic Biology and Medicine - January 22, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Acute effects of capacitive and resistive electric transfer (CRet) on the Achilles tendon.
In conclusion, CRet significantly improved blood circulation in the peritendinous region. PMID: 30663425 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - January 22, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Statement of Retraction: Health effects of living near mobile phone base transceiver station (BTS) antennae: a report from Isfahan, Iran.
Authors: PMID: 30633572 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - January 12, 2019 Category: Physics Tags: Electromagn Biol Med Source Type: research

Rate limiting factors for DNA transduction induced by weak electromagnetic field.
In this study, we examined a few key factors affecting DNA transduction rate in an extremely low frequency electromagnetic field. These include: the chemical composition of the aqueous solutions, the type of experimental vessel, the dilution step, and the origin of the DNA fragments. The results indicate that partially introducing essential ingredients for DNA amplification (i.e. dNTPs and PCR buffer) to the aqueous solution enhanced the transduction rate greatly, and transduction vessels made of hydrophilic quartz yielded more favorable results than vessels made of hydrophobic plastic. In addition, performing a serial dil...
Source: Electromagnetic Biology and Medicine - December 22, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

The effect of chronic exposure to extremely low-frequency electromagnetic fields on sleep quality, stress, depression   and anxiety.
This study suggests that long-term occupational exposure to ELF-EMF may lead to depression, stress, anxiety and poor sleep quality. PMID: 30547710 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - December 16, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

A review on the effects of extremely low frequency electromagnetic field (ELF-EMF) on cytokines of innate and adaptive immunity.
Authors: Mahaki H, Tanzadehpanah H, Jabarivasal N, Sardanian K, Zamani A Abstract Extremely low frequency electromagnetic field (ELF-EMF) is produced extensively in modern technologies. Numerous in vitro and in vivo studies have shown that ELF-EMF has both stimulatory and inhibitory effects on the immune system response. This review was conducted on effects of ELF-EMF on cytokines of innate and adaptive immunity. Mechanisms of ELF-EMF, which may modulate immune cell responses, were also studied. Physical and biological parameters of ELF-EMF can interact with each other to create beneficial or harmful effect on the ...
Source: Electromagnetic Biology and Medicine - December 8, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Radiofrequency radiation at 2.856 GHz does not affect key cellular endpoints in neuron-like PC12 cells.
Authors: Zhou H, Dong G, Zheng W, Wang S, Wang L, Zhi W, Wang C Abstract To investigate the potential cytotoxicity of radiofrequency (RF) radiation on central nervous system, rat pheochromocytoma (PC12) cells were exposed to 2.856 GHz RF radiation at a specific absorption rate (SAR) of 4 W/kg for 8 h a day for 2 days in 35 mm Petri dishes. During exposure, the real-time variation of the culture medium temperature was monitored in the first hour. Reactive oxygen species (ROS) production, intracellular Ca2+ concentration, and cell apoptosis rate were assessed immediately after exposure by flow cytometr...
Source: Electromagnetic Biology and Medicine - December 1, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Effects of low-level combined static and weak low-frequency alternating magnetic fields on cytokine production and tumor development in mice.
Authors: Novoselova EG, Novikov VV, Lunin SM, Glushkova OV, Novoselova TV, Parfenyuk SB, Novoselov SV, Khrenov MO, Fesenko EE Abstract We investigated the effects of weak combined magnetic fields (MFs) produced by superimposing a constant MF (in the range 30 - 150 µT) and an alternating MF (100 or 200 nT) on cytokine production in healthy Balb/C male mice exposed 2 h daily for 14 days. The alternating magnetic field was a sum of several frequencies (ranging from 2.5 - 17.5 Hz). The frequencies of the alternating magnetic field were calculated formally based on the cyclotron resonance of ions of free amino aci...
Source: Electromagnetic Biology and Medicine - November 28, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Power-frequency magnetic fields at 50  Hz do not affect fertility and development in rats and mice.
Power-frequency magnetic fields at 50 Hz do not affect fertility and development in rats and mice. Electromagn Biol Med. 2018 Nov 14;:1-12 Authors: Ruan G, Liu X, Zhang Y, Wan B, Zhang J, Lai J, He M, Chen C Abstract In the present study, the effects of power-frequency magnetic fields (PF-MF) on fertility and development were investigated in rats and mice. Adult Sprague-Dawley rats and C57BL/6J mice were divided into four groups: a sham exposure group and 30-µT, 100-µT and 500-µT PF-MF exposure groups. The rats were exposed for 24 weeks, and the exposure time for mice ranged...
Source: Electromagnetic Biology and Medicine - November 16, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Impact of electromagnetic fields on in vitro toxicity of silver and graphene nanoparticles.
Authors: Saliev T, Baiskhanova DM, Akhmetova A, Begimbetova DA, Akishev M, Kulsharova G, Molkenov A, Nurgozhin T, Alekseyeva T, Mikhalovsky S Abstract The correlation between shape and concentration of silver nanoparticles (AgNPs), their cytotoxicity and formation of reactive oxygen species (ROS) in the presence of electromagnetic fields (EMFs) has been investigated. In addition, the bio-effects caused by the combination of EMFs and graphene nanoparticles (GrNPs) have been also assessed. The AgNPs of three shapes (triangular, spherical and colloidal) and GrNPs were added in high concentrations to the culture of hum...
Source: Electromagnetic Biology and Medicine - November 11, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Effects of exposure to electromagnetic field from mobile phone on serum hepcidin and iron status in male albino rats.
CONCLUSION: Chronic exposure to EMF from mobile phones increases hepcidin level with subsequent impairment of iron parameters, in addition to negatively affecting both UIBC and TIBC. PMID: 30388901 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - November 6, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

TITLE: List of Reviewers for Volume 37.
Authors: PMID: 30376381 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - November 1, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Electromagnetic transduction therapy and shockwave therapy in 86 patients with rotator cuff tendinopathy: A prospective randomized controlled trial.
Authors: Klüter T, Krath A, Stukenberg M, Gollwitzer H, Harrasser N, Knobloch K, Maffulli N, Hausdorf J, Gerdesmeyer L Abstract Rotator cuff (RC) tendinopathy is the most common cause of shoulder pain. The effectiveness of electromagnetic transduction therapy (EMTT), a high energetic pulsed electromagnetic field therapy in this field has not been tested yet in combination with extracorporeal shock wave therapy (ESWT). A total of 86 patients with RC tendinopathy were randomized to undergo three sessions of ESWT in combination with 8 sessions of EMTT or sham-EMTT. Both intervention groups experienced significant...
Source: Electromagnetic Biology and Medicine - September 6, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Effects of mobile phone exposure on biochemical parameters of cord blood: A preliminary study.
Authors: Bektas H, Bektas MS, Dasdag S Abstract The purpose of this study is to investigate foetal impact of radiofrequencies (RFs) emitted from mobile phones in postnatal cord blood. The study carried on 149 pregnant women divided into four groups such as nonusers of mobile phone (n: 37; control group), 2-15 min/d (n: 39; group 1), 15-60 min/d (n: 37; group 2) and participants using mobile phone for more than 60 min/d (n: 36; group 3). Cord blood of the infants was taken in all groups for biochemical analyses immediately after birth. The results of the study showed that the biggest foetal impact was...
Source: Electromagnetic Biology and Medicine - August 31, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Moderate intensity low frequency rotating magnetic field inhibits breast cancer growth in mice.
Authors: Zha M, Tao Q, Li J, Tian X, Feng S, Liao Z, Fang Z, Zhang X Abstract Moderate intensity low frequency rotating magnetic field (LF-RMF) has been shown to inhibit melanoma, liver and lung cancer growth in mice. However, its effects on other types of cancers have not been investigated in vivo. Here, we show that 0-0.15T moderate intensity 4.2 Hz LF-RMF can inhibit tumor growth in mice bearing MDA-MB231 and MCF7 human breast cancer cells by over 30%. In contrast, the human gastrointestinal stromal tumor GIST-T1 growth was not inhibited by LF-RMF. In all RMF treatments, there were no apparent adverse effec...
Source: Electromagnetic Biology and Medicine - August 26, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

DNA electromagnetic properties and interactions -An investigation on intrinsic bioelectromagnetism within DNA.
Authors: Bukhari MH, Batool S, Raza DY, Bagasra O, Rizvi A, Shah A, Razzaki T, Sultan T Abstract The question whether intrinsic bioelectromagnetism exists within DNA or not is an important and so far unexplored area of biology. We carried out a study of isolated genetic material, utilizing both prokaryotic and eukaryotic DNA, to measure any possible intrinsic electromagnetic effects or fields emanated within the molecules. Studies were carried out with extremely sensitive ultra-low-noise trans-impedance amplifiers and a high-precision data acquisition system to record any possible faintest electromagnetic signals f...
Source: Electromagnetic Biology and Medicine - July 21, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Resonant interaction between electromagnetic fields and proteins: A possible starting point for the treatment of cancer.
Authors: Calabrò E, Magazù S Abstract Samples of human hemoglobin, bovine serum albumin, lysozyme and myoglobin were used as prototype of proteins to investigate their response to exposure to high frequency electromagnetic fields (HF-EMFs), in order to study possible application to the treatment of cancer. To this aim, Fourier-transform infrared spectroscopy was used in the infrared region. The most evident result which appeared after 3 h exposure to HF-EMFs was a significant increase in intensity of the Amide I band and of CH2 bending vibrations, showing that the proteins aligned toward the dire...
Source: Electromagnetic Biology and Medicine - July 20, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Multivariable quantitative relation between cell viability and the exposure parameters of 9.33 GHz RF-EMP irradiation.
Authors: Wang X, Qi H, Zhang J, Pei J, Sun L, Chen S Abstract Qualitative analysis of the influence of a certain exposure parameter is commonly performed in bioelectromagnetic studies. However, since the exposure condition requires the control of multiple parameters, the diverse results caused by different combinations of these parameters requires further quantitative study of the multivariable (exposure parameters)-bioeffect relation to identify the rule describing bioelectromagnetic effects. The present work investigated the relation between cell viability and the three main exposure parameters (electric intensit...
Source: Electromagnetic Biology and Medicine - June 15, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Cytotoxicity of carboplatin on human glioblastoma cells is reduced by the concomitant exposure to an extremely low-frequency electromagnetic field (50 Hz, 70 G).
In this study, we evaluated the effect of concomitant administration of carboplatin and EMF (50 Hz, 70 G) and also concomitant administration of carboplatin and static magnetic field (SMF) (70 G) on human glioma cell line (U-87). The results showed that cotreatment reduced the efficiency of carboplatin in U-87 cells, by decreasing caspase-3 in comparison to drug groups. Overall, EMF reduced the apoptotic effect of carboplatin, possibly through a redox regulation mechanism. Therefore, we have to avoid coadministration of magnetic field (MF) and carboplatin in tumor area, because the MF decreased the toxicity of th...
Source: Electromagnetic Biology and Medicine - June 1, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Effect of weak combined static and extremely low-frequency alternating magnetic fields on spatial memory and brain amyloid- β in two animal models of Alzheimer's disease.
Effect of weak combined static and extremely low-frequency alternating magnetic fields on spatial memory and brain amyloid-β in two animal models of Alzheimer's disease. Electromagn Biol Med. 2018 May 17;:1-11 Authors: Bobkova NV, Novikov VV, Medvinskaya NI, Aleksandrova IY, Nesterova IV, Fesenko EE Abstract Subchronic effect of a weak combined magnetic field (MF), produced by superimposing a constant component, 42 µT and an alternating MF of 0.08 µT, which was the sum of two frequencies of 4.38 and 4.88 Hz, was studied in olfactory bulbectomized (OBE) and transgenic Tg (APPswe, P...
Source: Electromagnetic Biology and Medicine - May 21, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

A proposed explanation for thunderstorm asthma and leukemia risk near high-voltage power lines: a supported hypothesis.
Authors: Redmayne M Abstract Thunderstorm asthma and increased childhood leukemia risk near high-voltage power lines (HVPL) are occurrences whose mechanism of effect is not fully understood. This paper proposes and discusses a key similarity: both thunderstorms and HVPL generate a high enough electrical field in the environment to ionize nearby air and air-borne particles. I argue that the repeatedly demonstrated acute asthma response to pollen-laden air during thunderstorms is largely due to ionization of air-borne allergens, which adhere more readily and in greater quantity in the lungs than non-ionized particles...
Source: Electromagnetic Biology and Medicine - May 2, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Evaluation of femoral perfusion using dynamic contrast-enhanced MRI after simultaneous initiation of electrical stimulation and steroid treatment in an osteonecrosis model.
This study aimed to evaluate femoral perfusion using dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) for two weeks after the simultaneous initiation of electrical stimulation (ES) and steroid treatment in a steroid-induced osteonecrosis (ON) model. A single dose of methylprednisolone was injected into 14 rabbits. Seven rabbits underwent ES (ES group), and seven rabbits did not (control group). DCE-MRI was performed before steroid administration and 1, 5, 10, and 14 days after steroid administration. Regions of interest were set in the bilateral proximal femora. The enhancement ratio, initial slope, and ...
Source: Electromagnetic Biology and Medicine - May 2, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Exposure to non-ionizing electromagnetic fields emitted from mobile phones induced DNA damage in human ear canal hair follicle cells.
In conclusion, RFR emitted from mobile phones has a potential to produce DNA damage in follicle cells of hair in the ear canal. Therefore, mobile phone users have to pay more attention when using wireless phones. PMID: 29667447 [PubMed - as supplied by publisher] (Source: Electromagnetic Biology and Medicine)
Source: Electromagnetic Biology and Medicine - April 19, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Magnetic field direction differentially impacts the growth of different cell types.
We examined 12 different cell lines, including 5 human solid tumor cell lines, 2 human leukemia cell lines and 4 human non-cancer cell lines, as well as the Chinese hamster ovary cell line. Permanent magnets were used to provide 0.2-1 T SMFs with different magnetic field directions. We found that an upward magnetic field of 0.2-1 T could effectively reduce the cell numbers of all human solid tumor cell lines we tested, but a downward magnetic field mostly had no statistically significant effect. However, the leukemia cells in suspension, which do not have shape-induced anisotropy, were inhibited by both upward an...
Source: Electromagnetic Biology and Medicine - April 7, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Effects of static magnetic fields on bone microstructure and mechanical properties in mice.
Authors: Zhang J, Meng X, Ding C, Shang P Abstract All the living organisms originate, evolve and live under geomagnetic field (GMF, 20-70 µT). With rapid development in science and technology, exposure to various static magnetic fields (SMFs) from natural and man-made sources remains a public environmental topic in consideration of its probable health risk for humans. Many animal studies related to health effect have demonstrated that SMF could improve bone formation and enhance bone healing. Moreover, most of the studies focused on local SMF generated by rod-type magnet. It was difficult to come to a c...
Source: Electromagnetic Biology and Medicine - April 5, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Extremely low frequency variable electromagnetic fields affect cancer and noncancerous cells in vitro differently: Preliminary study.
Authors: Koziorowska A, Romerowicz-Misielak M, Sołek P, Koziorowski M Abstract The exposure to extremely low frequency electromagnetic field (ELF-EMF) may result in various changes at the cellular level. To identify the effect of ELF-EMF exposure on viability of cells, cancer cells (U87-MG; 143B) and noncancerous cells (BJ; HEK) in exponential growth phase were exposed or sham-exposed to different values of frequency (2, 20, 30, 50 and 60 Hz), different shapes (sinusoidal, square and triangular) and time of exposure (0.5, 1, 2, 3 h) to electromagnetic field. After exposure, viability of cells was detecte...
Source: Electromagnetic Biology and Medicine - March 9, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Intensity-time dependence dosing criterion in the EMF exposure guidelines in Russia.
Authors: Rubtsova N, Paltsev Y, Perov S, Bogacheva E Abstract Major approaches of the Russian Federation in setting of exposure guidelines to electromagnetic fields (EMF) in occupational and public environments are discussed in this paper. EMF exposure guidelines in Russia are based on the results of hygienic, clinical, physiological, epidemiological and experimental studies and are frequency-dependent. The concept of a threshold principle of occupational and environmental factors due to hazardous exposure effects has been used to set permissible exposure levels of different EMF frequency ranges. The data of experi...
Source: Electromagnetic Biology and Medicine - March 3, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Calcium ion cyclotron resonance in dissipative water structures.
Authors: Pazur A Abstract Weak magnetic and electromagnetic fields affect physiological processes in animals, plants, and microorganisms. Ion cyclotron resonance (ICR) is discussed as one of the sensitive mechanisms, which enable perception of the geomagnetic field and its orientation. Numerous biological effects are observed involving several small ions, showing windows of predicted frequencies and intensities. The pioneering work of Guiliano Preparata and Emilio Del Giudice using quantum electrodynamics showed that spontaneously originating coherent regions in water facilitate ICR effects at incoherent water phas...
Source: Electromagnetic Biology and Medicine - February 10, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Fatal collision? Are wireless headsets a risk in treating patients?
Authors: Sage C, Hardell L Abstract Wireless-enabled headsets that connect to the internet can provide remote transcribing of patient examination notes. Audio and video can be captured and transmitted by wireless signals sent from the computer screen in the frame of the glasses. But using wireless glass-type devices can expose the user to a specific absorption rates (SAR) of 1.11-1.46 W/kg of radiofrequency radiation. That RF intensity is as high as or higher than RF emissions of some cell phones. Prolonged use of cell phones used ipsilaterally at the head has been associated with statistically significant inc...
Source: Electromagnetic Biology and Medicine - February 7, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Numerical study to establish relationship between coagulation volume and target tip temperature during temperature-controlled radiofrequency ablation.
Authors: Singh S, Repaka R Abstract The present study aims at proposing a relationship between the coagulation volume and the target tip temperature in different tissues (viz., liver, lung, kidney, and breast) during temperature-controlled radiofrequency ablation (RFA). A 20-min RFA has been modelled using commercially available monopolar multi-tine electrode subjected to different target tip temperatures that varied from 70°C to 100°C with an increment of 10°C. A closed-loop feedback proportional-integral-derivative (PID) controller has been employed within the finite element model to perform temperatu...
Source: Electromagnetic Biology and Medicine - January 10, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Skin thermophysiological effects of 448 kHz capacitive resistive monopolar radiofrequency in healthy adults: A randomised crossover study and comparison with pulsed shortwave therapy.
Authors: Kumaran B, Watson T Abstract Radiofrequency-based electrophysical agents (EPA) have been used in therapy practice over several decades (e.g., shortwave therapies). Currently, there is insufficient evidence supporting such devices operating below shortwave frequencies. This laboratory-based study investigated the skin physiological effects of 448 kHz capacitive resistive monopolar radiofrequency (CRMRF) and compared them to pulsed shortwave therapy (PSWT). In a randomised crossover study, seventeen healthy volunteers received four treatment conditions - High, Low and Placebo dose conditions receiving 1...
Source: Electromagnetic Biology and Medicine - January 10, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Seed germination of medicinal sage is affected by gibberellic acid, magnetic field and laser irradiation.
We examined the plumule and radical length, plumule and radical fresh weight, plumule and radical dry weight, germination percentage, germination rate and seed vigor. The two concentrations of GA significantly increased seed germination and seedling growth. The magnetic field at 15 mT significantly increased radical length. The effect of laser irradiation was also significant on plumule length, and fresh and dry weight, radicle fresh weight, germination percentage and rate and seed vigor. Such results may be of practical use in the field, especially in arid and semiarid areas, but more research must determine the response ...
Source: Electromagnetic Biology and Medicine - January 10, 2018 Category: Physics Tags: Electromagn Biol Med Source Type: research

Nitric oxide modulates the responses of osteoclast formation to static magnetic fields.
In this study, 500 nT of hypomagnetic field (HyMF), 0.2 T of moderate SMF (MMF) and 16 T of high SMF (HiMF) were utilized as SMF treatment. Under 16 T, osteoclast formation was markedly decreased with enhanced NO synthase (NOS) activity, thus producing a high level of NO. When treated with NOS inhibitor N-Nitro-L-Arginine Methyl Ester (L-NAME), NO production could be inhibited, and osteoclast formation was restored to control group level in a concentration-dependent manner. However, 500 nT and 0.2 T increased osteoclast formation with decreased NOS activity and NO production. When treated with...
Source: Electromagnetic Biology and Medicine - December 15, 2017 Category: Physics Tags: Electromagn Biol Med Source Type: research

Bio-soliton model that predicts non-thermal electromagnetic frequency bands, that either stabilize or destabilize living cells.
Authors: Geesink JH, Meijer DKF Abstract Solitons, as self-reinforcing solitary waves, interact with complex biological phenomena such as cellular self-organization. A soliton model is able to describe a spectrum of electromagnetism modalities that can be applied to understand the physical principles of biological effects in living cells, as caused by endogenous and exogenous electromagnetic fields and is compatible with quantum coherence. A bio-soliton model is proposed, that enables to predict which eigen-frequencies of non-thermal electromagnetic waves are life-sustaining and which are, in contrast, detrimental ...
Source: Electromagnetic Biology and Medicine - November 23, 2017 Category: Physics Tags: Electromagn Biol Med Source Type: research

Extremely low frequency magnetic field protects injured spinal cord from the microglia- and iron-induced tissue damage.
Authors: Dey S, Bose S, Kumar S, Rathore R, Mathur R, Jain S Abstract Spinal cord injury (SCI) is insult to the spinal cord, which results in loss of sensory and motor function below the level of injury. SCI results in both immediate mechanical damage and secondary tissue degeneration. Following traumatic insult, activated microglia release proinflammatory cytokines and excess iron due to hemorrhage, initiating oxidative stress that contributes to secondary degeneration. Literature suggests that benefits are visible with the reduction in concentration of iron and activated microglia in SCI. Magnetic field attenuate...
Source: Electromagnetic Biology and Medicine - November 16, 2017 Category: Physics Tags: Electromagn Biol Med Source Type: research