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    2366 results match your criteria Bioelectromagnetics[Journal]

    1 OF 48

    Suppression of Arabidopsis flowering by near-null magnetic field is mediated by auxin.
    Bioelectromagnetics 2017 Sep 20. Epub 2017 Sep 20.
    Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, P.R. China.
    We previously found that flowering of Arabidopsis was suppressed by near-null magnetic field, which was related to cryptochrome. Auxin plays an important role in Arabidopsis flowering. To test whether auxin is involved in the suppression of Arabidopsis flowering by near-null magnetic field, we detected auxin level and expressions of auxin transport and signaling genes in wild-type Arabidopsis plants and cryptochrome double mutant, cry1/cry2, grown in near-null magnetic field. Read More

    Wearable slot antenna at 2.45 GHz for off-body radiation: Analysis of efficiency, frequency shift, and body absorption.
    Bioelectromagnetics 2017 Sep 12. Epub 2017 Sep 12.
    Department of Communications Engineering, University of the Basque Country (UPV/EHU), Bilbao, Spain.
    The interaction of body-worn antennas with the human body causes a significant decrease in antenna efficiency and a shift in resonant frequency. A resonant slot in a small conductive box placed on the body has been shown to reduce these effects. The specific absorption rate is less than international health standards for most wearable antennas due to small transmitter power. Read More

    Effects of static magnetic fields on the enteropathogenic Escherichia coli.
    Bioelectromagnetics 2017 Oct 25;38(7):570-578. Epub 2017 Aug 25.
    Departamento de Salud Pública, Facultad de Medicina UNAM, Ciudad de México, México.
    This study reports the effects of exposing cells of the prototypical enteropathogenic Escherichia coli (EPEC) strain E2348/69 to static magnetic fields (SMF) of varying intensities to observe their capacity to autoaggregate and the effect on cell adherence. The results showed that bacteria exposure over the course of 5 min to an intensity of 53 mT reduced autoaggregation by 28%. However, with intensities of up to 100 mT with the same exposure time, bacteria autoaggregation was reduced by approximately 50%; and after 30 min at the same intensity, it was indistinguishable from that observed in a non-autoaggregative strain. Read More

    Forced acoustic oscillations of biological cell.
    Bioelectromagnetics 2017 Aug 24. Epub 2017 Aug 24.
    Department of Physics, Volgograd State Technical University, Volgograd, Russia.
    This article considers the possibility of excitation of acoustic oscillations in a cell by electromagnetic waves. In this process, not only the frequency but also the length of a wave is of great importance. It is also reported that the pulse signal can be more effective than harmonic signal, and the pulse length is not essential. Read More

    Millimeter-wave emissivity as a metric for the non-contact diagnosis of human skin conditions.
    Bioelectromagnetics 2017 Oct 24;38(7):559-569. Epub 2017 Aug 24.
    Royal Manchester Children's Hospital, Manchester, United Kingdom.
    A half-space electromagnetic model of human skin over the band 30-300 GHz was constructed and used to model radiometric emissivity. The model showed that the radiometric emissivity rose from 0.4 to 0. Read More

    Pulsed electromagnetic fields promote the proliferation and differentiation of osteoblasts by reinforcing intracellular calcium transients.
    Bioelectromagnetics 2017 Oct 18;38(7):541-549. Epub 2017 Aug 18.
    The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China.
    Pulsed electromagnetic fields (PEMF) can be used to treat bone-related diseases, but the underlying mechanism remains unclear, especially the process by which PEMFs initiate biological effects. In this study, we demonstrated the effects of PEMF on proliferation and differentiation of osteoblasts using the model of calcium transients induced by high extracellular calcium. Our results showed that PEMF can increase both the percentage of responding cells and amplitude of intracellular calcium transients induced by high extracellular calcium stimulation. Read More

    Thermal mapping on male genital and skin tissues of laptop thermal sources and electromagnetic interaction.
    Bioelectromagnetics 2017 Oct 11;38(7):550-558. Epub 2017 Aug 11.
    School of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran.
    Since the development of communication devices and expansion of their applications, there have been concerns about their harmful health effects. The main aim of this study was to investigate laptop thermal effects caused by exposure to electromagnetic fields and thermal sources simultaneously; propose a nondestructive, replicable process that is less expensive than clinical measurements; and to study the effects of positioning any new device near the human body in steady state conditions to ensure safety by U.S. Read More

    Stable morphological-physiological and neural protein expression changes in rat bone marrow mesenchymal stem cells treated with electromagnetic field and nitric oxide.
    Bioelectromagnetics 2017 Aug 7. Epub 2017 Aug 7.
    Faculty of Biological Science, Department of Biophysics, Tarbiat Modares University, Tehran, Iran.
    As an external physical factor, electromagnetic field (EMF) may influence cellular processes and nitric oxide (NO) by serving as a secondary messenger molecule in intracellular signaling cascades. Effects of these factors were evaluated simultaneously on viability, morphology, and variation of calcium ion content, and neural protein marker expression in rat bone marrow mesenchymal stem cells (BMSCs). The mesenchymal stem cells were isolated from rat bone marrow and cultured. Read More

    Magnetosensitivity of bacteria E. coli: Magnetic isotope and magnetic field effects.
    Bioelectromagnetics 2017 Aug 7. Epub 2017 Aug 7.
    Orenburg State University, Orenburg, Russia.
    The biological effects of a (25) Mg nuclear spin and weak magnetic fields have been found and studied by using bacterial cells of Escherichia coli (E. coli) grown on standard M9 nutrient media with different isotopes of magnesium: (24) Mg, (25) Mg, (26) Mg, and a natural mixture of Mg isotopes. Among these isotopes only (25) Mg has a nuclear spin I = 5/2 and nuclear magnetic moment which have been known to affect enzymatic processes in vitro due to hyperfine interactions with uncoupled electrons of substrates. Read More

    Differential intensity-dependent effects of pulsed electromagnetic fields on RANKL-induced osteoclast formation, apoptosis, and bone resorbing ability in RAW264.7 cells.
    Bioelectromagnetics 2017 Jul 24. Epub 2017 Jul 24.
    Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China.
    Pulsed electromagnetic fields (PEMF) have been proven to be effective for promoting bone mass and regulating bone turnover both experimentally and clinically. However, the exact mechanisms for the regulation of PEMF on osteoclastogenesis as well as optical exposure parameters of PEMF on inhibiting osteoclastic activities and functions remain unclear, representing significant limitations for extensive scientific application of PEMF in clinics. In this study, RAW264. Read More

    Variation in the dielectric properties of freshly excised colorectal cancerous tissues at different tumor stages.
    Bioelectromagnetics 2017 Oct 17;38(7):522-532. Epub 2017 Jul 17.
    South China University of Technology School of Medicine, Guangzhou, China.
    The study was designed to identify differences in the dielectric properties of ex vivo colorectal cancerous tissues at different tumor stages. To date, 130 freshly excised colorectal cancerous specimens underwent measurement of both relative permittivity and conductivity on the serosal and mucosal surfaces of the carcinoma nidus, and the mucosa of the surgical resection margin ranging from 50 to 500 MHz at the Larmor frequencies. Tumor node metastasis staging was determined according to pathological reports for each patient. Read More

    Enzymatic mechanisms of biological magnetic sensitivity.
    Bioelectromagnetics 2017 Oct 17;38(7):511-521. Epub 2017 Jul 17.
    Osaka Ohtani University, Tondabayashi, Japan.
    Primary biological magnetoreceptors in living organisms is one of the main research problems in magnetobiology. Intracellular enzymatic reactions accompanied by electron transfer have been shown to be receptors of magnetic fields, and spin-dependent ion-radical processes can be a universal mechanism of biological magnetosensitivity. Magnetic interactions in intermediate ion-radical pairs, such as Zeeman and hyperfine (HFI) interactions, in accordance with proposed strict quantum mechanical theory, can determine magnetic-field dependencies of reactions that produce biologically important molecules needed for cell growth. Read More

    Hybrid model for the personal exposure meter response in an outdoor environment.
    Bioelectromagnetics 2017 Jul 14. Epub 2017 Jul 14.
    Broadcasting and Media Research Laboratory, Electronics and Telecommunications Research Institute, Daejeon, Korea.
    When a personal exposure meter (PEM) is worn by a human subject, the electric-field strength measured at the PEM is affected by a body shadowing effect. In our study, a hybrid model is proposed for modeling the body shadowing effect for when the PEM is used in an outdoor environment. The hybrid model contains responses to direct and diffused waves, the factors related to the transmission path and cross-polarization discrimination, respectively. Read More

    Influence of 340 mT static magnetic field on germination potential and mid-infrared spectrum of wheat.
    Bioelectromagnetics 2017 Oct 12;38(7):533-540. Epub 2017 Jul 12.
    Institute of Physics, University of Belgrade, Belgrade, Serbia.
    In a number of studies, a static magnetic field was observed to positively influence the growing process of various plants; however, the effect has not yet been related to possible structural changes. We investigate if the static magnetic field that improves germination of wheat also alters wheat's near-infrared spectrum. Two groups of seeds were exposed to 340 mT for 16 h cumulatively. Read More

    Effects of pulsed electromagnetic fields on postmenopausal osteoporosis.
    Bioelectromagnetics 2017 Sep 30;38(6):406-424. Epub 2017 Jun 30.
    Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, P. R. China.
    Postmenopausal osteoporosis (PMOP) is considered to be a well-defined subject that has caused high morbidity and mortality. In elderly women diagnosed with PMOP, low bone mass and fragile bone strength have been proven to significantly increase risk of fragility fractures. Currently, various anabolic and anti-resorptive therapies have been employed in an attempt to retain healthy bone mass and strength. Read More

    Biological effects related to geomagnetic activity and possible mechanisms.
    Bioelectromagnetics 2017 Oct 21;38(7):497-510. Epub 2017 Jun 21.
    I.D. Papanin Institute for Biology of Inland Waters Russian Academy of Sciences, Borok, Russian Federation.
    This review presents contemporary data on the biological effects of geomagnetic activity. Correlations between geomagnetic indices and biological parameters and experimental studies that used simulated geomagnetic storms to detect possible responses of organisms to these events in nature are discussed. Possible mechanisms by which geomagnetic activity influences organisms are also considered. Read More

    Human exposure to power frequency magnetic fields up to 7.6 mT: An integrated EEG/fMRI study.
    Bioelectromagnetics 2017 Sep 19;38(6):425-435. Epub 2017 Jun 19.
    Human Threshold Research and Bioelectromagnetics Group, Imaging Program, Lawson Health Research Institute, London, Canada.
    We assessed the effects of power-line frequency (60 Hz in North America) magnetic fields (MF) in humans using simultaneous electroencephalography (EEG) and functional magnetic resonance imaging (fMRI). Twenty-five participants were enrolled in a pseudo-double-blind experiment involving "real" or "sham" exposure to sinusoidal 60 Hz MF exposures delivered using the gradient coil of an MRI scanner following two conditions: (i) 10 s exposures at 3 mT (10 repetitions); (ii) 2 s exposures at 7.6 mT (100 repetitions). Read More

    Influence of radiofrequency-electromagnetic waves from 3rd-generation cellular phones on fertilization and embryo development in mice.
    Bioelectromagnetics 2017 Sep 19;38(6):466-473. Epub 2017 Jun 19.
    Department of Obstetrics and Gynecology, Fukushima Medical University, Fukushima, Japan.
    The purpose of this study was to evaluate the effects of 3rd-generation (3G) cellular phone radiofrequency-electromagnetic wave (RF-EMW) exposure on fertilization and embryogenesis in mice. Oocytes and spermatozoa were exposed to 3G cellular phone RF-EMWs, 1.95 GHz wideband code division multiple access, at a specific absorption rate of 2 mW/g for 60 min, or to sham exposure. Read More

    Influence of extremely low frequency magnetic fields on Ca(2+) signaling and double messenger system in mice hippocampus and reversal function of procyanidins extracted from lotus seedpod.
    Bioelectromagnetics 2017 Sep 1;38(6):436-446. Epub 2017 Jun 1.
    Institute of Medicinal Plants, Chinese Academy of Medical Sciences, Beijing, China.
    This research investigated the influence of extremely low frequency magnetic fields (ELF-MF; 50 Hz, 8 mT, 4 h per day, for 28 days) on calcium ion signaling and the double messenger system in the hippocampus of mice. Messengers that were studied included: G-protein, Ins(1,4,5)P3 (IP3 ), diacylglycerol (DAG), cAMP-dependent protein kinase (PKA), and Ca(2+) -dependent protein kinase C (PKC). The results showed that ELF-MF caused an increase in the levels of Gi protein, IP3, DAG, PKA and PKC beta, calcium and calmodulin-dependent protein phosphatase calcineuring (PP2B), and intracellular Ca(2+) content, and a decrease in calcium/calmodulin-dependent protein kinase II (CaMK II) and PKC alpha. Read More

    Glycocalyx bending by an electric field increases cell motility.
    Bioelectromagnetics 2017 Sep 24;38(6):482-493. Epub 2017 May 24.
    Department of Biology, The University of the South, Sewanee, Tennessee.
    The application of physiological strength electric fields may produce a wide range of effects on cells. The mechanisms by which cells detect the presence of these fields, however, are not fully understood. Previous experiments have shown that directionality of cells in the field is governed by an electromechanical mechanism in which the field exerts a torque on the negatively charged, inner glycocalyx that is then transmitted as a force on the cytoskeleton. Read More

    Effect of intervention initiation timing of pulsed electromagnetic field on ovariectomy-induced osteoporosis in rats.
    Bioelectromagnetics 2017 Sep 16;38(6):456-465. Epub 2017 May 16.
    Department of Rehabilitation, First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.
    The aim of this study is to explore the effect of timing of initiation of pulsed electromagnetic field (PEMF) therapy on bone mass, microarchitecture, and biomechanical properties, and to investigate receptor activator of NF-kB (RANK) expression in ovariectomized (OVX) rats. Sixty female Sprague-Dawley rats were randomly divided into two equal batches of three groups each (10 rats in each group). The first batch comprised of sham-operated (Sham-0 group), ovariectomized (OVX-0 group), and ovariectomized plus treated with PEMF starting from the day of OVX (Early PEMF group). Read More

    Induced-orientation of nitrogen monoxide and azide ion vibrations in human hemoglobin in bidistilled water solution under a static magnetic field.
    Bioelectromagnetics 2017 Sep 28;38(6):447-455. Epub 2017 Apr 28.
    Department of Mathematics and Informatics Sciences, Physics Sciences and Earth Sciences, University of Messina, Messina, Italy.
    In this study, we report the effects of static magnetic fields (SMFs) at 200 mT on different hemoglobin aqueous solutions, in the absence and in the presence of sucrose and trehalose, studied by FTIR spectroscopic techniques. Significant decrease in intensity of Amide I and Amide II vibration bands was observed after 6 h exposure for hemoglobin in bidistilled water solution. Also, it was observed that the decrease in intensity of the Amide I band was larger than the Amide II after exposure. Read More

    Closed-form equation to estimate the dielectric properties of biological tissues as a function of age.
    Bioelectromagnetics 2017 Sep 21;38(6):474-481. Epub 2017 Apr 21.
    School of ITEE, The University of Queensland, Brisbane, Australia.
    Developing microwave systems for biomedical applications requires accurate dielectric properties of biological tissues for reliable modeling before prototyping and subject testing. Dielectric properties of tissues decrease with age due to the change in their water content, but there are no detailed age-dependent data, especially for young tissue-like newborns, in the literature. In this article, an age-dependent formula to predict the dielectric properties of biological tissues was derived. Read More

    Extremely low frequency electromagnetic field (ELF-EMF) reduces oxidative stress and improves functional and psychological status in ischemic stroke patients.
    Bioelectromagnetics 2017 Jul 21;38(5):386-396. Epub 2017 Apr 21.
    Department of General Biochemistry, University of Lodz, Lodz, Poland.
    As a result of ischaemia/reperfusion, massive generation of reactive oxygen species occurs, followed by decreased activity of antioxidant enzymes. Extremely low frequency electromagnetic fields (ELF-EMF) can modulate oxidative stress, but there are no clinical antioxidant studies in brain stroke patients. The aim of our study was to investigate the effect of ELF-EMF on clinical and antioxidant status in post-stroke patients. Read More

    Acute effects of radiofrequency electromagnetic field emitted by mobile phone on brain function.
    Bioelectromagnetics 2017 Jul 20;38(5):329-338. Epub 2017 Apr 20.
    Department of Psychology, AUT University, Auckland, New Zealand.
    Due to its attributes, characteristics, and technological resources, the mobile phone (MP) has become one of the most commonly used communication devices. Historically, ample evidence has ruled out the substantial short-term impact of radiofrequency electromagnetic field (RF-EMF) emitted by MP on human cognitive performance. However, more recent evidence suggests potential harmful effects associated with MP EMF exposure. Read More

    Extremely low-frequency electromagnetic field induces neural differentiation of hBM-MSCs through regulation of (Zn)-metallothionein-3.
    Bioelectromagnetics 2017 Jul 29;38(5):364-373. Epub 2017 Mar 29.
    Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea.
    Extremely low-frequency electromagnetic field (ELFEMF) can stimulate neural differentiation in human bone marrow-derived mesenchymal cells (hBM-MSCs), and this provides an opportunity for research on neurodegenerative diseases such as Alzheimer's disease (AD). Metallothionein-3 (MT3), an isoform of the metal-binding proteins, metallothioneins, involved in maintaining intracellular zinc (Zn) homeostasis and the deregulation of zinc homeostasis, has separately been implicated in AD. Here, we investigated the effect of ELFEMF-induced neural differentiation of hBM-MSCs on Zn-MT3 homeostatic interaction. Read More

    Extremely low-frequency electromagnetic field exposure enhances inflammatory response and inhibits effect of antioxidant in RAW 264.7 cells.
    Bioelectromagnetics 2017 Jul 29;38(5):374-385. Epub 2017 Mar 29.
    College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea.
    In recent years, there has been a dramatic increase in the number and variety of electronic devices that emit electromagnetic waves. Because people live and work in close proximity to these pieces of electrical equipment, there is growing concern surrounding the destruction of homeostasis by electromagnetic field exposure. In the present study, the effects of 60 Hz 0. Read More

    Analysis of mobile phone use among young patients with brain tumors in Japan.
    Bioelectromagnetics 2017 Jul 24;38(5):349-355. Epub 2017 Mar 24.
    Department of Public Health, School of Medicine, Tokyo Women's Medical University, Tokyo, Japan.
    The purpose of this study was to clarify ownership and usage of mobile phones among young patients with brain tumors in Japan. The subjects of this study were patients with brain tumors diagnosed between 2006 and 2010 who were between the ages of 6 and 18 years. The target population for the analysis was 82 patients. Read More

    Effect of adverse environmental conditions and protective clothing on temperature rise in a human body exposed to radiofrequency electromagnetic fields.
    Bioelectromagnetics 2017 Jul 24;38(5):356-363. Epub 2017 Mar 24.
    Australian Centre for Electromagnetic Bioeffects Research (ACEBR), Hawthorn, Victoria, Australia.
    This study considers the computationally determined thermal profile of a finely discretized, heterogeneous human body model, simulating a radiofrequency electromagnetic field (RF-EMF) worker wearing protective clothing subject to RF-EMF exposure, and subject to various environmental conditions including high ambient temperature and high humidity, with full thermoregulatory mechanisms in place. How the human body responds in various scenarios was investigated, and the information was used to consider safety limits in current international RF-EMF safety guidelines and standards. It was found that different environmental conditions had minimal impact on the magnitude of the thermal response due to RF-EMF exposure, and that the current safety factor of 10 applied in international RF-EMF safety guidelines and standards for RF-EMF workers is generally conservative, though it is only narrowly so when workers are subjected to the most adverse environmental conditions. Read More

    Exposure to electromagnetic fields from smart utility meters in GB; part I) laboratory measurements.
    Bioelectromagnetics 2017 May 21;38(4):280-294. Epub 2017 Mar 21.
    Radiation Dosimetry Department, Public Health England, Chilton, United Kingdom.
    Laboratory measurements of electric fields have been carried out around examples of smart meter devices used in Great Britain. The aim was to quantify exposure of people to radiofrequency signals emitted from smart meter devices operating at 2.4 GHz, and then to compare this with international (ICNIRP) health-related guidelines and with exposures from other telecommunication sources such as mobile phones and Wi-Fi devices. Read More

    Radiofrequency exposure near an attocell as part of an ultra-high density access network.
    Bioelectromagnetics 2017 May 27;38(4):295-306. Epub 2017 Feb 27.
    Department of Information Technology, Ghent University, Ghent, Belgium.
    In the future, wireless radiofrequency (RF) telecommunications networks will provide users with gigabit-per-second data rates. Therefore, these networks are evolving toward hybrid networks, which will include commonly used macro- and microcells in combination with local ultra-high density access networks consisting of so-called attocells. The use of attocells requires a proper compliance assessment of exposure to RF electromagnetic radiation. Read More

    Configuration-dependent variability of the effect of an electric field on the plasma glucocorticoid level in immobilized mice.
    Bioelectromagnetics 2017 May 25;38(4):265-271. Epub 2017 Feb 25.
    Bio-Self-Regulating Science Laboratory, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.
    We recently reported that an immobilization stress-induced increase in glucocorticoid (GC) level was suppressed in mice exposed to an electric field (EF) of 50 Hz in a kV/m-dependent manner. In this study, we investigated the reproducibility of the suppressive effect induced by EF exposure by varying the voltage and distance between the electrodes (0.5 kV/50 mm, 1 kV/100 mm, 2 kV/200 mm) and comparing the effects on the plasma GC level. Read More

    Effects of local vibration and pulsed electromagnetic field on bone fracture: A comparative study.
    Bioelectromagnetics 2017 Jul 25;38(5):339-348. Epub 2017 Feb 25.
    Histology and Embryology, Dicle University, Diyarbakir, Turkey.
    The effectiveness of various therapeutic methods on bone fracture has been demonstrated in several studies. In the present study, we tried to evaluate the effect of local low-magnitude, high-frequency vibration (LMHFV) on rat tibia fracture in comparison with pulsed electromagnetic fields (PEMF) during the healing process. Mid-diaphysis tibiae fractures were induced in 30 Sprague-Dawley rats. Read More

    Magnetic resonance examination of patients with implanted pacemakers: An evaluation of magnetic field gradients slew rate.
    Bioelectromagnetics 2017 May 21;38(4):307-314. Epub 2017 Feb 21.
    General Electric Medical Systems, Milan, Italy.
    Performing safe magnetic resonance imaging of patients with "MR conditional" pacemakers needs to meet some specific restrictions. One of these is related to the slew rate (SR) parameter, defined as the speed of magnetic field gradients rising up to their required strengths. Unfortunately, SR values cannot be easily checked at the tomograph console. Read More

    Pulsed magnetic field enhances therapeutic efficiency of mesenchymal stem cells in chronic neuropathic pain model.
    Bioelectromagnetics 2017 May 28;38(4):255-264. Epub 2017 Jan 28.
    Department of Biophysics, School of Medicine, Cukurova University, Adana, Turkey.
    Cell-based or magnetic field therapies as alternative approaches to pain management have been tested in several experimental pain models. The aim of this study therefore was to investigate the actions of the cell-based therapy (adipose tissue derived mesenchymal stem cells; ADMSC) or pulsed magnetic field (PMF) therapy and magneto-cell therapy (combination of ADMSC and PMF) in chronic constriction nerve injury model (CCI). The actions of individual ADMSC (route dependent [systemic or local], time-dependent [a day or a week after surgery]), or PMF and their combination (magneto-cell) therapies on hyperalgesia and allodynia were investigated by using thermal plantar test and a dynamic plantar aesthesiometer, respectively. Read More

    Time-dependent changes in the suppressive effect of electric field exposure on immobilization-induced plasma glucocorticoid increase in mice.
    Bioelectromagnetics 2017 May 28;38(4):272-279. Epub 2017 Jan 28.
    Bio-Self-Regulating Science Laboratory, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.
    We recently reported that increased glucocorticoid (GC) levels in immobilized mice were suppressed by exposure to a 50-Hz electric field (EF) in kV/m-dependent and exposure duration-dependent manners. Here, we characterized time-dependent changes in the effect of EF exposure in immobilized mice. Using control, EF-alone, immobilization-alone, and co-treated groups, plasma GC levels, and blood properties were first measured (0-60 min) to observe changes induced by each treatment and measured again (60-120 min) to assess recovery from each treatment. Read More

    Efficacy of 50 Hz electromagnetic fields on human epidermal stem cell transplantation seeded in collagen sponge scaffolds for wound healing in a murine model.
    Bioelectromagnetics 2017 Apr 20;38(3):204-212. Epub 2017 Jan 20.
    Department of Rehabilitation Medicine, Institute of Geriatric Medicine, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou, China.
    To explore the possible efficacy of electromagnetic fields (EMF) for skin tissue engineering, effects of EMF exposure on epidermal stem cells (ESC) seeded in collagen sponge scaffolds for wound healing in a murine model were investigated. The wound models of a full-thickness defect established with 36 7 ∼ 8-week-old nude mice were randomly divided into three groups: a control group, an ESC-only group, and an ESC with EMF exposure group (frequency of 50 Hz, magnetic induction of 5 mT, 60 min per day for 20 days). ESC were separated from human foreskin and cultured in vitro, and then transplanted with collagen sponge scaffolds as a delivery vehicle to wounds of the ESC-only group, and ESC with EMF exposure group was exposed to EMF after ESC transplantation. Read More

    Study of potential health effects of electromagnetic fields of telephony and Wi-Fi, using chicken embryo development as animal model.
    Bioelectromagnetics 2017 Apr 16;38(3):186-203. Epub 2017 Jan 16.
    TNO, The Hague, Den Haag, the Netherlands.
    The objective of this study is to investigate possible biological effects of radiofrequency electromagnetic fields (RF-EMF) as used in modern wireless telecommunication in a well-controlled experimental environment using chicken embryo development as animal model. Chicken eggs were incubated under continuous experimental exposure to GSM (1.8 GHz), DECT (1. Read More

    Adverse and beneficial effects in Chinese hamster lung fibroblast cells following radiofrequency exposure.
    Bioelectromagnetics 2017 May 10;38(4):245-254. Epub 2017 Jan 10.
    CNR-Institute for Electromagnetic Sensing of the Environment, Napoli, Italy.
    In this study, the effect of radiofrequency (RF) exposure to 1950 MHz, Universal Mobile Telecommunication System signal, was investigated in Chinese hamster lung fibroblast cell line (V79). Genotoxic and cytotoxic effects of 20-h exposure at specific absorption rate (SAR) values from 0.15 W/kg to 1. Read More

    Pulsed electromagnetic field at different stages of knee osteoarthritis in rats induced by low-dose monosodium iodoacetate: Effect on subchondral trabecular bone microarchitecture and cartilage degradation.
    Bioelectromagnetics 2017 Apr 27;38(3):227-238. Epub 2016 Dec 27.
    Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China.
    The aim of the study was to investigate the efficacy of pre-emptive, early, and delayed pulsed electromagnetic field (PEMF) treatment on cartilage and subchondral trabecular bone in knee osteoarthritis (OA) rats induced by low-dose monosodium iodoacetate (MIA). Seventy-five 12-week-old male Sprague-Dawley rats were assigned to five groups: OA (n = 30), pre-emptive PEMF (n = 10), early PEMF (n = 10), delayed PEMF (n = 10), and control (n = 15). Osteoarthritis was induced by injecting 0. Read More

    The effects of electromagnetic fields on B16-BL6 cells are dependent on their spatial and temporal character.
    Bioelectromagnetics 2017 Apr 27;38(3):165-174. Epub 2016 Dec 27.
    Department of Biomolecular Sciences, Laurentian University, Sudbury, Ontario, Canada.
    Exposure to low intensity, low frequency electromagnetic fields (EMF) has effects on several biological systems. Spatiotemporal characteristics of these EMFs are critical. The effect of several complex EMF patterns on the proliferation of B16-BL6 mouse melanoma cells was tested. Read More

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