Abstract：
:Mice were exposed in the far field in an anechoic chamber to 2,880-MHz pulsed microwaves 3 to 7.5 h daily, 5 days/week for 60 to 360 h. Three experiments were performed at average power densities of 5 mW/cm2 and six at 10 mW/cm2, corresponding to averaged specific absorption rates (SARs) of 2.25 and 4.50 mW/g, respectively. Each experiment consisted of eight mice, with a concurrently sham-exposed group of eight. In two of three studies at 5 mW/cm2, there was a significant increase in bone marrow cellularity in the microwave-exposed groups compared to the sham-exposed groups. Significant differences were occasionally seen in erythrocyte, leukocyte, and platelet values from microwave-exposed groups, but were not consistently observed. In one of six groups exposed at 10 mW/cm2, mean bone marrow cellularity was reduced significantly in the microwave-exposed mice; in another group, the lymphocyte count was increased. In only one exposure (10 mW/cm2 for 360 h) was any significant effect noted on serum proteins: a reduction to 5.1 +/- 0.3 g/dl in the exposed versus 5.6 +/- 0.4 g/dl in the sham-exposed mice. This was due to a decrease in alpha and beta globulins, with no effect on albumin or gamma globulin concentrations. No effect on bone marrow granulocyte/macrophage colony-forming units (CFU) was revealed following exposure of mice to pulsed microwaves at 5 mW/cm2. In one of four exposures at 10 mW/cm2, there was a significant increase in CFU-agar colonies. No significant effects of exposures at 10 mW/cm2 were observed on in vivo and in vitro assays of cell-mediated immune functions. No exposure-related histopathologic lesions were found from examination of several tissues and organs. Results of these series of exposures of mice at SARs of 2.25 and 4.50 mW/g indicated no consistent effects on the hematologic, immunologic, or histopathologic variables examined.
journal_name
Bioelectromagneticsjournal_title
Bioelectromagneticsauthors
Ragan HA,Phillips RD,Buschbom RL,Busch RH,Morris JEdoi
10.1002/bem.2250040409subject
Has Abstractpub_date
1983-01-01 00:00:00pages
383-96issue
4eissn
0197-8462issn
1521-186Xjournal_volume
4pub_type
杂志文章abstract：:This study aimed to explore effects of static magnetic fields (SMFs) of moderate intensity (3-50 mT) as biophysical stimulators of proliferation and osteoblastic differentiation of human bone marrow-derived mesenchymal stem cells (MSCs). MSCs were exposed to SMFs of three intensities: 3, 15, and 50 mT. Proliferation w...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.21903
更新日期：2015-04-01 00:00:00
abstract：:The aim of the present study was to identify the effects of a static magnetic field (SMF) on rat brain structures that control autonomic functions, specifically heart rate and heart rhythmicity. The experiments were carried out on 44 male Wistar rats under ketamine-xylazine anesthesia. SMF was induced using samarium-c...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.10186
更新日期：2004-04-01 00:00:00
abstract：:No causal treatment for chemotherapy-induced peripheral neuropathy (CIPN) is known. Therefore, there is an urgent need to develop a therapy for CIPN. Only scarce clinical data are available concerning magnetic field therapy (MFT) in this context. We conducted a unicentric, randomized, double-blind, placebo-controlled ...
journal_title：Bioelectromagnetics
pub_type： 杂志文章,随机对照试验
doi：10.1002/bem.22005
更新日期：2017-02-01 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
pub_type： 杂志文章
doi：10.1002/bem.20658
更新日期：2011-09-01 00:00:00
abstract：:The main purpose of this study is to investigate potential responses of skin cells to millimeter wave (MMW) radiation increasingly used in the wireless technologies. Primary human skin cells were exposed for 1, 6, or 24 h to 60.4 GHz with an average incident power density of 1.8 mW/cm(2) and an average specific absorp...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.20693
更新日期：2012-02-01 00:00:00
abstract：:The constant exposure of modern society to extremely low frequency magnetic fields (ELF-MF) has raised considerable concerns about the potential risks to male reproduction. However, the epidemiological and experimental data remain contradictory and inconclusive. In the present study, we investigated the effects of 50 ...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.21816
更新日期：2014-01-01 00:00:00
abstract：:We conducted a pilot study to assess magnetic field levels in electric compared to gasoline-powered vehicles, and established a methodology that would provide valid data for further assessments. The sample consisted of 14 vehicles, all manufactured between January 2000 and April 2009; 6 were gasoline-powered vehicles ...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.21730
更新日期：2013-02-01 00:00:00
abstract：:A new method for finding the dielectric parameters of biological substances is presented. The method makes use of the loss-tangent as a function of frequency to identify the dominating relaxation process. The method was tested for a few cell suspensions (blood and lymphocytes) and two tissues (liver and spleen). The o...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.2250070303
更新日期：1986-01-01 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
pub_type： 杂志文章
doi：10.1002/bem.21901
更新日期：2015-04-01 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
pub_type： 杂志文章
doi：10.1002/bem.22125
更新日期：2018-07-01 00:00:00
abstract：:We used exposure to microwaves from a global system for mobile communication (GSM) mobile phone (915 MHz, specific absorption rate (SAR) 37 mW/kg) and power frequency magnetic field (50 Hz, 15 muT peak value) to investigate the response of lymphocytes from healthy subjects and from persons reporting hypersensitivity t...
journal_title：Bioelectromagnetics
pub_type： 临床试验,杂志文章
doi：10.1002/bem.20103
更新日期：2005-04-01 00:00:00
abstract：:The wide and growing use of cellular phones has raised questions about the possible health risks associated with radio frequency (RF) electromagnetic fields. It would be helpful for epidemiologists as well as cellular phone users to obtain the relative exposure levels, because the RF exposure level is very difficult t...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.20203
更新日期：2006-09-01 00:00:00
abstract：:We study the effect of microwaves at 2,450 MHz on protein unfolding using surface plasmon resonance sensing. Our experimental method makes use of the fact that unfolding proteins tend to bind to chaperones on their unfolding pathway and this attachment is readily monitored by surface plasmon resonance. We use the prot...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.20382
更新日期：2008-05-01 00:00:00
abstract：:The present analysis was stimulated by previous findings on the possible influence of natural ultralow-frequency (ULF; 0.001-10 Hz) geomagnetic field variations on the cardiovascular system and indications of an effect of man-made ULF magnetic fields on the rate of myocardial infarction. In the present study, we consi...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/(SICI)1521-186X(1996)17:6<436::AID-BEM2>3.
更新日期：1996-01-01 00:00:00
abstract：:We studied the influence of magnetic fields (MFs) and simulated solar radiation (SSR) on ornithine decarboxylase (ODC) and polyamines in mouse epidermis. Chronic exposure to combined MF and SSR did not cause persistent effects on ODC activity or polyamines compared to the animals exposed only to UV, although the same ...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:The aim of this study was to explore the prevalence, nature and determinants of concerns about mobile phone radiation. We used data from a 2006 telephone survey of 1004 people aged 15+ years in Denmark. Twenty-eight percent of the respondents were concerned about exposure to mobile phone radiation; radiation from mast...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.20484
更新日期：2009-07-01 00:00:00
abstract：:A mechanism is presented that predicts new biological effects of static and sinusoidal weak magnetic fields. The model is based on an earlier proposed interference mechanism of quantum states of ions within protein cavities. The quantum dynamics of an ion is studied for the case of ion-protein complexes that rotate in...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
abstract：:We have studied the effect of extremely low frequency electromagnetic fields (ELF-EMF) in the presence of a second stressor (mild heat shock) on the expression of a lacZ reporter gene under the control of hsp16 or hsp70 promoters in two transgenic strains of C. elegans. The expression of the reporter gene was studied ...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/(sici)1521-186x(200002)21:2<100::aid-bem4>
更新日期：2000-02-01 00:00:00
abstract：:Recent work has demonstrated that the reflection coefficient of human skin in the frequency range from 95 to 110 GHz (W band) mirrors the temporal relaxation of stress induced by physical exercise. In this work, we extend these findings to show that in the event of a subtle trigger to stress, such as mental activity, ...
journal_title：Bioelectromagnetics
pub_type： 临床试验,杂志文章
doi：10.1002/bem.21698
更新日期：2012-07-01 00:00:00
abstract：:To evaluate duration- and dose-dependent effects of continuous exposure to a 60 Hz magnetic field (MF) on the testes in mice, BALB/c male mice were exposed to a 60 Hz MF at 100 μT for 24 h a day for 2, 4, 6, or 8 weeks, and at 2, 20, or 200 μT for 24 h a day for 8 weeks. Any exposures to MF did not significantly affec...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.21819
更新日期：2014-02-01 00:00:00
abstract：: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 activit...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.22070
更新日期：2017-12-01 00:00:00
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journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.20431
更新日期：2008-10-01 00:00:00
abstract：:Composition and content of lipids were studied in leaves of red perilla plants (Perilla nankinensis [Lour.] Decne.) grown in weak permanent horizontal magnetic field (PMF) of 500 µT flux density under controlled illumination, temperature, and humidity in the phytothron chamber. Control plants were grown under similar ...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.21957
更新日期：2016-02-01 00:00:00
abstract：:Millimeter wave treatment (MMWT) is based on the systemic biological effects that develop following local skin exposure to low power electromagnetic waves in the millimeter range. In the present set of experiments, the hypoalgesic effect of this treatment was analyzed in mice. The murine nose area was exposed to MMW o...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.20389
更新日期：2008-05-01 00:00:00
abstract：:This study was designed to determine the changes that occur in the thermoregulatory ability of the immature rat repeatedly exposed to low-level microwave radiation. Beginning at 6-7 days of age, previously untreated rats were exposed to 2,450-MHz continuous-wave microwaves at a power density of 5 mW/cm2 for 10 days (4...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.2250080307
更新日期：1987-01-01 00:00:00
abstract：:The objective was to study the risk of cytogenetic damage among high voltage laboratory workers exposed to electromagnetic fields and mineral oil. This is a cross sectional study of 24 exposed and 24 matched controls in a Norwegian transformer factory. The exposure group included employees in the high voltage laborato...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.33
更新日期：2001-04-01 00:00:00
abstract：:The effects of millimeter waves (MW) on human keratinocytes were studied in vitro using the HaCaT keratinocyte cell line. MW-induced modulation of keratinocyte function was studied in proliferation, adhesion, chemotaxis, and interleukin-1beta (IL-1beta) production assays. Spontaneous proliferation, adhesion to tissue ...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.62
更新日期：2001-07-01 00:00:00
abstract：:The dielectric properties of the bovine brain grey and white matter in the frequency range from 20 kHz to 100 MHz were measured at different times following animal death. Changes in the dielectric parameters versus time are interpreted in terms of the reduction of the cell volume fraction that results from either cell...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.2250070105
更新日期：1986-01-01 00:00:00
abstract：:Digital cellular telephones using the GSM (Global System for Mobile Communication) transmit information in bursts of microwaves. This pulsed transmitting mode causes the battery current and currents in the electronics of the apparatus to be pulsed. These pulsed currents produce corresponding pulsed magnetic fields nea...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:A 275-MHz exposure system, consisting of a circular waveguide irradiator and a transparent plastic animal cage, has been developed to accommodate rhesus monkeys weighing up to 15 kg. The vertically oriented waveguide is composed primarily of stainless steel and is fitted with an inner cage fabricated from a tubular se...
journal_title：Bioelectromagnetics
pub_type： 杂志文章
doi：10.1002/bem.2250050109
更新日期：1984-01-01 00:00:00
