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1

In vitro Trypanosoma cruzi growth inhibition by extremely low-frequency electromagnetic fields

100%
Heredia-Rojas J. A., Rodriguez-De la Fuente A. O., Gomez-Flores R., Alvarez-Rodriguez M., Molina-Garza Z. J., Belcheva M., Heredia-Rodriguez O., Galaviz-Silva L.
Acta Protozoologica
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2019
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tom 58
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nr 2
2
Content available remote

Effect of extremely low frequency electromagnetic fields on cell proliferation, antioxidative enzyme activities and lipid peroxidation in 3T3-L1 preadipocytes - an in vitro study

75%
Zwirska-Korczala K., Jochem J., Adamczyk-Sowa M., Sowa P., Polaniak R., Birkner E., Latocha M., Pilc K., Suchanek R.
Journal of Physiology and Pharmacology. Supplement
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2005
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tom 56
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nr 6
101-108
The exposure to extremely low frequency electromagnetic field (ELF-MF, frequencies less than 200-300 Hz) can alter the transcription and translation of genes, influence the cell proliferation rate and affect enzyme activities. Moreover, the hypothesis that ELF-MF increases free oxygen metabolites generation has been proposed. Since recent in vivo studies suggest that electric and magnetic fields are able to affect adipose cells metabolism. The aim of the study was to examine the effects of ELF-MF (frequency of basic impulse 180-195 Hz, induction 120 µT) on cell proliferation, antioxidative enzyme activities and malondialdehyde (MDA) concentration in 3T3-L1 preadipocyte cell culture. We found that ELF-MF application lasting 36 minutes daily failed to influence cell count after 24h and 48 h of incubation. After 24 h, in the ELF-MF treated group, manganese- and copper-zinc-containing superoxide dismutase (MnSOD and Cu/ZnSOD) isoenzymes media activities were decreased, catalase activity was increased, whereas there were no significant differences in glutathione peroxidase (GSH-Px) and glutathione reductase (GSSG-Rd) activities in comparison to the control. After 48 h of incubation, all enzyme activities were reduced, except for GSSG-Rd, in which no changes were noticed. MDA concentration at 24 h after incubation with the exposure to ELF-MF was significantly higher in comparison to the control, without ELF-MF. After 48 h of incubation, MDA levels were significantly lower in both groups with no differences between the groups without and with ELF-MF. We conclude that ELF-MF influences antioxidative enzyme activities and increases lipid peroxidation in 3T3-L1 preadipocyte cultures.
3

Effect of low frequency electromagnetic fields on [3H]glucose uptake in rat tissues

75%
Sieron A., Brus H., Konecki J., Cieslar G., Szkilnik R., Nowak P., Noras L., Kwiecinski A., Kostrzewa R. M., Brus R.
Polish Journal of Environmental Studies
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2007
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tom 16
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nr 2
The aims of this study were to evaluate the influence of an extremely low-frequency electromagnetic field (ELF-EMF) on [³H]glucose uptake in the peripheral tissues and organs of rats. Rats were exposed to EL F-EM F (frequency-10 Hz, induction -1.8-3.8 mT) one hour daily for 14 consecutive days. Control animals were sham exposed. On the 15th day (24 hours after last exposure) rats were injected with D-[³H]-6-glucose 500μCi/kg IP. Fifteen minutes later animals were sacrificed by decapitation and peripheral tissues were excised and examined for radioactivity (desintegrations per minute, DPM/100 mg wet tissue weight), which expressed [³H]glucose uptake. In most of the examined tissues and organs, such as liver, kidney, heart muscle, cartilage, connective tissue, tendon and skin, [³H]glucose uptake in EL F-EM F-exposed animals was significantly higher as compared to that in the sham control. Exposure to EL F-EM F did not influence [³H]glucose uptake in the thoracic aorta and the skeletal muscle. It is concluded that ELF-EMF impacts tissue glucose uptake by facilitating glucose transport via cell membranes, dependent and probably also independent of its role in increasing insulin action in insulin-dependent tissues.
4

In vitro evaluation of electroporated gold nanoparticles and extremely-low frequency electromagnetic field anticancer activity against Hep-2 laryngeal cancer cells

63%
Alshehri M. A., Wierzbicki P. M., Kaboo H. F., Nasr M. S. M., Amer M. E., Abuamara T. M. M., Badr D. A., Saleh K. A., Fazary A. E., Mohamed A. F.
Folia Histochemica et Cytobiologica
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2019
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tom 57
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nr 4
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