Interaction of static and extremely low frequency electric and magnetic fields with living systems: health effects and research needs.

World Health Organization, Geneva, Switzerland.
Bioelectromagnetics (Impact Factor: 1.86). 02/1999; 20(3):133-60.
Source: PubMed

ABSTRACT An international seminar was held June 4-6, 1997, on the biological effects and related health hazards of ambient or environmental static and extremely low frequency (ELF) electric and magnetic fields (0-300 Hz). It was cosponsored by the World Health Organization (WHO), the International Commission on Non-Ionizing Radiation Protection (ICNIRP), the German, Japanese, and Swiss governments. Speakers provided overviews of the scientific literature that were discussed by participants of the meeting. Subsequently, expert working groups formulated this report, which evaluates possible health effects from exposure to static and ELF electric and magnetic fields and identifies gaps in knowledge requiring more research to improve health risk assessments. The working groups concluded that, although health hazards exist from exposure to ELF fields at high field strengths, the literature does not establish that health hazards are associated with exposure to low-level fields, including environmental levels. Similarly, exposure to static electric fields at levels currently found in the living and working environment or acute exposure to static magnetic fields at flux densities below 2 T, were not found to have demonstrated adverse health consequences. However, reports of biological effects from low-level ELF-field exposure and chronic exposure to static magnetic fields were identified that need replication and further study for WHO to assess any possible health consequences. Ambient static electric fields have not been reported to cause any direct adverse health effects, and so no further research in this area was deemed necessary.

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    • "Magnetic fields can interfere with biological processes at all levels of organization, from molecular to organism level (Blank, 1995; Lacy-Hubert et al., 1998; Repacholi and Greenebaum, 1999; Rosen, 2003; Moghadam et al., 2011; Spasić et al., 2011; Tolosa et al., 2011; Nikolić et al., 2012). Many studies point out hazardous effects of exposure to SMF and ELF MF (McCann et al., 1998; Lai and Singh, 2004; Okano and Ohkubo, 2005; Regoli et al., 2005; Saunders, 2005) but in recent time there are evidences of beneficial effects of magnetic fields application in medicine (Weintraub et al., 2003; Kelleher et al., 2006; Gyires et al., 2008; Wang et al., 2010; Rauš-Balind et al., 2014). "
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    ABSTRACT: To study the influence of a static magnetic field (SMF, 2 mT) and extremely low frequency magnetic field (ELF MF, 50Hz, 2 mT) on the neuronal population activity, the experiments were performed on adult longhorn beetles Morimus funereus (Coleoptera, Cerambycidae). Based on a wavelet analysis of the local field potentials (LFPs), our study showed for the first time that the effects of prolonged and repeated exposure to the ELF MF on the LFPs were irreversible within investigated time frame. The relative wavelet energy (RWE) of 4-8Hz frequency band was significantly increased after sine ELF MF (SnMF)/square ELF MF (SqMF) in comparison to the control value. The RWE of slower oscillations (1-2Hz) was significantly decreased after the repeated exposures to either SnMF or SqMF. The SqMF induced decreasing of the faster waves in the range of 64-128Hz. However, we did not prove with presented methods that exposure to the SMF for 5min produces any effects on the neuronal population activity. This study has proved the wavelet transform as a valuable tool for measuring the effects of SMF and ELF MF on the neuronal population activity in M. funereus antennal lobe. Copyright © 2014 Elsevier Inc. All rights reserved.
    Comparative Biochemistry and Physiology - Part A Molecular & Integrative Physiology 11/2014; 181. DOI:10.1016/j.cbpa.2014.11.018 · 2.37 Impact Factor
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    • "III. MATERIALES Y MÉTODOS La mayor incidencia de exposición a los campos electromagnéticos a los cuales esta sujeta la población se puede atribuir a los campos de extrema baja frecuencia que generan los aparatos eléctricos, cableado del hogar , equipos médicos, y en casos específicos los soldadores industriales, las líneas de transmisión de energía eléctrica y líneas de distribución de energía eléctrica [19] [20]. Se ha estimado que la exposición a los electrodomésticos representa el 30% de la exposición a los campos de la población [21]. "
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    ABSTRACT: This article presents the preliminary results obtained from an earlier publication of a design study performed to integrate a cellular culture bioreactor along with an external magnetic stimulation system, which was aimed at creating ideal environmental conditions that allowed for cellular culture and cellular tissue growth to take place in three dimensions, under a sterile environment favorable for the development of bioorganic grafts which were exposed to controlled electromagnetic fields. Cellular tissue was used from cellular lines of Normal Human Skin Fibroblast (NHSF) and was seeded on bio-synthetic scaffolds synthesized from polylactic acid (PLA) and Chitosan mixtures. The cellular tissue covered scaffold was then introduced into the cellular culture bioreactor, subsequently it was filled with cellular culture medium and put under dynamic flow conditions in while at the same time using the external magnetic stimulation system to irradiate the cellular tissue with controlled magnetic fields. The results present static tests of cell growth where the maximum change in growth was after 48 hours when the cells were exposed to a 1 mT, 60 Hz magnetic field; they proliferated at a rate of 52% without Chitosan, 75% with Chitosan and 53% under dynamic flow versus the non-exposed cellular tissue. These results have allowed us to continue our experimentation techniques to evaluate changes in 3-dimensional growth of magnetically stimulated tissues under dynamic flow.
    2014 IEEE Biennial Congress of Argentina (ARGENCON), Bariloche, Argentina; 06/2014
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    • "Animal studies are often used in the evaluation of suspected human carcinogens [25] either screening for an increased incidence of spontaneous tumors or of the incidence of tumors induced by known carcinogens. The earlier literature has been summarized by WHO [26], Kowalczuk et al. [27] and ICNIRP [28] [29], Repacholi and Greenebaum [30], IARC [31], ICNIRP [32], McKinlay et al. [33], and Dini and Abbro [34] whilst more recent studies have been reviewed by Okano [22], Phillips et al. [35], and Ueno and Okano [36]. The focus of this review is on recent studies, where possible . "
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    ABSTRACT: The interaction of static magnetic fields (SMFs) with living organisms is a rapidly growing field of investigation. The magnetic fields (MFs) effect observed with radical pair recombination is one of the well-known mechanisms by which MFs interact with biological systems. Exposure to SMF can increase the activity, concentration, and life time of paramagnetic free radicals, which might cause oxidative stress, genetic mutation, and/or apoptosis. Current evidence suggests that cell proliferation can be influenced by a treatment with both SMFs and anticancer drugs. It has been recently found that SMFs can enhance the anticancer effect of chemotherapeutic drugs; this may provide a new strategy for cancer therapy. This review focuses on our own data and other data from the literature of SMFs bioeffects. Three main areas of investigation have been covered: free radical generation and oxidative stress, apoptosis and genotoxicity, and cancer. After an introduction on SMF classification and medical applications, the basic phenomena to understand the bioeffects are described. The scientific literature is summarized, integrated, and critically analyzed with the help of authoritative reviews by recognized experts; international safety guidelines are also cited.
    08/2013; 2013:602987. DOI:10.1155/2013/602987