Effects of exposure to extremely low frequency magnetic fields on spermatogenesis in adult rats.

abstract：:In view of possible therapeutic applications of magnetic fields, the effect of an enhancement of neuronal outgrowth at higher figures of flux density and induced field strength was investigated. On the average sinusoidal magnetic field treatment at 100 microTrms/50 Hz did not change nerve growth factor (NGF) induced n...

journal_title：Bioelectromagnetics

authors： Schimmelpfeng J,Weibezahn KF,Dertinger H

更新日期：2005-01-01 00:00:00

abstract：:There are public concerns regarding possible carcinogenic or cancer-promoting effects of radiofrequency electromagnetic fields (RF-EMFs) because of the extensive use of wireless mobile phones and other telecommunication devices in daily life. However, so far it is unclear if non-thermal exposure of single EMF exposure...

journal_title：Bioelectromagnetics

authors： Lee HJ,Jin YB,Lee JS,Choi SY,Kim TH,Pack JK,Choi HD,Kim N,Lee YS

更新日期：2011-09-01 00:00:00

abstract：:This is the first of two articles addressing the most appropriate crossover frequency at which incident power flux density (S(inc)) replaces the spatial peak value of the specific energy absorption rate (SAR) averaged over 1 or 10 g (i.e., peak 1 or 10 g SAR) as the basic restriction for protecting against radiofreque...

journal_title：Bioelectromagnetics

authors： Anderson V,Croft R,McIntosh RL

更新日期：2010-09-01 00:00:00

abstract：:Cultures of Escherichia coli kept at 0 degree C in a phosphate buffer solution were exposed to a sinusoidal weak 60- or 600-Hz magnetic field of strength 2 X 10(-3) Tesla. A decrease of more than 40% in bacterial count was observed after a 60-h exposure to the magnetic field. Electron micrographs of exposed bacteria s...

journal_title：Bioelectromagnetics

authors： Ramon C,Ayaz M,Streeter DD Jr

更新日期：1981-01-01 00:00:00

abstract：:In a previous investigation we reported that exposure to a moderate (300 mT) static magnetic field (SMF) causes transient DNA damage and promotes mitochondrial biogenesis in human umbilical vein endothelial cells (HUVECs). To better understand the response of HUVECs to the 300 mT SMF, a high-quality subtracted cDNA li...

journal_title：Bioelectromagnetics

authors： Polidori E,Zeppa S,Potenza L,Martinelli C,Colombo E,Casadei L,Agostini D,Sestili P,Stocchi V

更新日期：2012-01-01 00:00:00

abstract：:Specific absorption rate (SAR) value is dependent on permittivity value. However, variability in the published permittivity values for human and animal tissue and the development of sophisticated 3-dimensional digital anatomical models to predict SAR values has resulted in the need to understand how model parameters (...

journal_title：Bioelectromagnetics

authors： Gajsek P,Ziriax JM,Hurt WD,Walters TJ,Mason PA

更新日期：2001-09-01 00:00:00

abstract：:The possibility that a sinusoidal 50 Hz magnetic field with a magnetic flux density of 0.5 mT can induce variations in the expression of cell adhesion molecules (CAMs) in two human osteosarcoma cell lines (MG-63 and Saos-2) was investigated. In particular, the expression of two important integrins, VLA-2, the receptor...

journal_title：Bioelectromagnetics

authors： Santini MT,Rainaldi G,Ferrante A,Indovina PL,Vecchia P,Donelli G

更新日期：2003-07-01 00:00:00

abstract：:The stimulatory effects on germination of seeds and growth of plants of static magnetic field (MF) pre-treatments depending on MF intensity, exposure time periods, signal form, flux density, and source frequencies on plants are reported. Seed germination frequency is low due to dormancy in Lathyrus chrysanthus Boiss. ...

journal_title：Bioelectromagnetics

authors： Bahadir A,Beyaz R,Yildiz M

更新日期：2018-10-01 00:00:00

abstract：:Calcium (45Ca2+) efflux from preloaded synaptosomes was studied with a continuous perfusion technique and the rate constants of a two-phase efflux process calculated. When 16-Hz sinusoidally amplitude modulated 450-MHz microwave field (maximal incident intensity 0.5 mW/cm2, modulation depth 75%) was applied during the...

journal_title：Bioelectromagnetics

authors： Lin-Liu S,Adey WR

更新日期：1982-01-01 00:00:00

abstract：:The effects of exposure to clinical magnetic resonance imaging (MRI) on analgesia induced by the mu opiate agonist, fentanyl, was examined in mice. During the dark period, adult male mice were exposed for 23.2 min to the time-varying (0.6 T/sec) magnetic field (TVMF) component of the MRI procedure. Following this expo...

journal_title：Bioelectromagnetics

authors： Teskey GC,Prato FS,Ossenkopp KP,Kavaliers M

更新日期：1988-01-01 00:00:00

abstract：:This paper investigates the influence of pulsed magnetic fields (PMFs) on amplitude of evoked, compound action potential (CAP) recorded from the segments of sciatic nerve in vitro. PMFs were applied for 30 min at frequency of 0.16 Hz and intensity of 15 mT. In confirmation of our previous reports, PMF exposure enhance...

journal_title：Bioelectromagnetics

authors： Ahmed Z,Wieraszko A

更新日期：2015-07-01 00:00:00

abstract：:Magnetite, the only known biogenic material with ferromagnetic properties, has been identified as a biochemical precipitate in three of the five kingdoms of living organisms, with a fossil record that now extends back nearly 2 billion years. In the magnetotactic bacteria, protoctists, and fish, single-domain crystals ...

journal_title：Bioelectromagnetics

authors： Kirschvink JL

更新日期：1989-01-01 00:00:00

abstract：:Serial longitudinal and transverse sections were prepared from roots of Cucumis sativus and Cucurbita maxima that had been exposed/sham-exposed to 60-Hz electric fields for 0-2 days. Field exposures were selected to produce a 10-20% or a 70-80% growth inhibition in whole roots of both species. Cortical cell length and...

journal_title：Bioelectromagnetics

authors： Brayman AA,Miller MW,Cox C

更新日期：1987-01-01 00:00:00

abstract：:The present study investigates the effects of a weak (+/-200 microT(pk)), pulsed, extremely low frequency magnetic field (ELF MF) upon the human electroencephalogram (EEG). We have previously determined that exposure to pulsed ELF MFs can affect the EEG, notably the alpha frequency (8-13 Hz) over the occipital-parieta...

journal_title：Bioelectromagnetics

authors： Cook CM,Saucier DM,Thomas AW,Prato FS

更新日期：2009-01-01 00:00:00

abstract：:An elementary model consisting of one charged particle in a viscous medium exposed to weak ac-dc low-frequency magnetic fields is analyzed to identify and explain the fundamental characteristics of the physical mechanisms that result in a resonance response, which is similar to the familiar cyclotron resonance. The mo...

journal_title：Bioelectromagnetics

authors： Durney CH,Rushforth CK,Anderson AA

更新日期：1988-01-01 00:00:00

abstract：:To investigate the effects of 1.8 GHz radiofrequency (RF) field on bone microstructure and metabolism of femur in mice, C57BL/6 mice (male, age 4 weeks) were whole-body exposed or sham exposed to 1.8 GHz RF field. Specific absorption rates of whole body and bone were approximately 2.70 and 1.14 W/kg (6 h/day for 28 da...

journal_title：Bioelectromagnetics

authors： Guo L,Zhang JP,Zhang KY,Wang HB,Wang H,An GZ,Zhou Y,Meng GL,Ding GR

更新日期：2018-07-01 00:00:00

abstract：:This study describes the effects of a static magnetic field (SMF) on cell growth and DNA integrity of human umbilical vein endothelial cells (HUVECs). Fast halo assay was used to investigate nuclear damage; quantitative polymerase chain reaction (QPCR), standard PCR, and real-time PCR were used to evaluate mitochondri...

journal_title：Bioelectromagnetics

authors： Potenza L,Martinelli C,Polidori E,Zeppa S,Calcabrini C,Stocchi L,Sestili P,Stocchi V

更新日期：2010-12-01 00:00:00

abstract：:We investigated the effects on human keratinocytes (HaCaT) of exposure to a sinusoidal magnetic field of 2 mT (50 Hz). These cells are a good model for studying interaction of nonionising radiation, because they are not shielded from fields in vivo and also because they are resistant to both mechanical and thermal sti...

journal_title：Bioelectromagnetics

authors： Manni V,Lisi A,Pozzi D,Rieti S,Serafino A,Giuliani L,Grimaldi S

更新日期：2002-05-01 00:00:00

abstract：:The temporal variation of a static electric field inside an animal cage was investigated with a newly developed small, simple field meter. The field inside the cage was found to be highly dependent on the surface conductivity of the dielectric material. As the surface of the cage became dirty because of animal occupan...

journal_title：Bioelectromagnetics

authors： Shigemitsu T,Tsuchida Y,Nishiyama F,Matsumoto G,Nakamura H,Shimizu K

更新日期：1981-01-01 00:00:00

abstract：:The effects of millimeter microwaves in the frequency range of 54-76 GHz on capacitance and conductance of lipid bilayer membranes (BLM) were studied. Some of the membranes were modified by gramicidin A and amphotericin B or by tetraphenylboron anions (TPhB-). The millimeter microwaves were pulse-modulated (PW) at rep...

journal_title：Bioelectromagnetics

authors： Alekseev SI,Ziskin MC

更新日期：1995-01-01 00:00:00

abstract：:A biphasic modulation of responsiveness of spleen lymphocytes to mitogens was observed in mice exposed to 2,450-MHz radiation at power densities of 5-15 mW/cm2 over various periods ranging between one and 17 days. This modulated phenomenon may be explained on the basis of 1) suppression of lymphocyte response to micro...

journal_title：Bioelectromagnetics

authors： Huang AT,Mold NG

更新日期：1980-01-01 00:00:00

abstract：:The use of electronic article surveillance (EAS) systems has become popular in many public sites. As a consequence, concern has risen about infant exposure to magnetic fields (MFs) from this kind of device. To evaluate infant exposure to MFs of an EAS system (operating at 125 kHz and 13.56 MHz), we numerically compare...

journal_title：Bioelectromagnetics

authors： Li C,Wu T

更新日期：2015-04-01 00:00:00

abstract：:This study compares stationary home measurements with a personal exposure monitor of 60 Hz magnetic fields in a group of 18 people living near a 735 kV line and 17 people living far away from the line. Most of them were white collar workers who worked during the day. They wore a personal Positron meter for 24 h, while...

journal_title：Bioelectromagnetics

authors： Levallois P,Gauvin D,Gingras S,St-Laurent J

更新日期：1999-09-01 00:00:00

abstract：:We sought to determine whether a 6-week exposure to a 50-Hz rotating magnetic field influences melatonin synthesis by 11-18 week-old Wistar-King male rats. Rats were exposed continuously to a rotating magnetic field at 1, 5, 50, or 250 microT (spatial vector rms) for 6 weeks, except for twice-weekly breaks of about 2 ...

journal_title：Bioelectromagnetics

authors： Kato M,Honma K,Shigemitsu T,Shiga Y

更新日期：1993-01-01 00:00:00

abstract：:In this work we tested viability, proliferation, and vulnerability of neural cells, after continuous radiofrequency (RF) electromagnetic fields exposure (global system for mobile telecommunications (GSM) modulated 900 MHz signal at a specific absorption rate (SAR) of 1 W/kg and maximum duration 144 h) generated by tra...

journal_title：Bioelectromagnetics

authors： Del Vecchio G,Giuliani A,Fernandez M,Mesirca P,Bersani F,Pinto R,Ardoino L,Lovisolo GA,Giardino L,Calzà L

更新日期：2009-10-01 00:00:00

abstract：:Atomic force microscopy (AFM), transmission electron microscopy (TEM), and confocal laser scanning microscopy were used to investigate the effects of a 50 Hz 0.4 mT magnetic field (MF) on the clustering of purified epidermal growth factor receptors (EGFRs) and EGFRs in Chinese hamster lung (CHL) cell membrane. The res...

journal_title：Bioelectromagnetics

authors： Jia C,Zhou Z,Liu R,Chen S,Xia R

更新日期：2007-04-01 00:00:00

abstract：:The aim of the present study was to determine millimeter wave (MMW) absorption by blood vessels traversing the subcutaneous fat layer of murine skin. Most calculations were performed using the finite-difference time-domain (FDTD) technique. We used two types of models: (1) a rectangular block of multilayer tissue with...

journal_title：Bioelectromagnetics

authors： Alekseev SI,Ziskin MC

更新日期：2011-09-01 00:00:00

abstract：:Ozone can be produced by corona discharge either in dry air or when one electrode is submerged in water. Since ozone is toxic, we examined whether ozone production by corona near laboratory animals could reach levels of concern. Male rats were exposed to a corona discharge and the concentration of ozone produced was m...

journal_title：Bioelectromagnetics

authors： Goheen SC,Gaither K,Anantatmula SM,Mong GM,Sasser LB,Lessor D

更新日期：2004-02-01 00:00:00

abstract：:In studies investigating adverse reproductive outcomes associated with video display terminal (VDT) usage, amounts of time spent in front of a VDT or magnetic field (MF) levels in front of the VDT are used as surrogate measures of subject's MF exposure. However, the relevance of such surrogates to actual exposures has...

journal_title：Bioelectromagnetics

authors： Abdollahzadeh S,Hammond SK,Schenker MB

更新日期：1996-01-01 00:00:00

abstract：:Extremely low-frequency (ELF) magnetic field exposure systems are usually subject to field disturbances induced by external sources. Here, a method for designing a feedback control system for cancelling the effect of external ELF magnetic field disturbances on the magnetic field over the exposure area is presented. Th...

journal_title：Bioelectromagnetics

authors： Wang PK

更新日期：1997-01-01 00:00:00