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Di G, Dong L, Xie Z, Xu Y, Xiang J. Effects of power frequency electric field exposure on kidney. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 194:110354. [PMID: 32135378 DOI: 10.1016/j.ecoenv.2020.110354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/13/2020] [Accepted: 02/16/2020] [Indexed: 06/10/2023]
Abstract
With the rapid development of ultra high voltage alternating current (UHV AC) transmission, the intensity of environmental power frequency electric field (PFEF) near UHV AC transmission lines increased continuously, which has attracted considerable public attention on the potential health effects of PFEF. In this study, the effect of PFEF exposure on the kidney was explored. Institute of Cancer Research (ICR) mice were exposed to 35 kV/m PFEF (50 Hz). Two indicators relating to renal function (urea nitrogen and creatinine) were tested after the exposure of 7d, 14d, 21d, 35d and 49d. The pathological morphology and cellular ultrastructure of kidney were observed respectively by light microscopy and electron microscopy after the exposure of 25d and 52d. Results showed that compared with that of the control group, the concentration of urea nitrogen of 35 kV/m PFEF exposure group significantly increased on the 21st and 35th days, and the concentration of creatinine significantly increased on the 14th, 21st and 35th days. However, the concentrations of creatinine and urea nitrogen both returned to normal levels on the 49th day. Furthermore, an enlarged Bowman's space, the vacuolation of renal tubular epithelial cells and the foot process effacement of podocyte were found after 25d exposure, but no abnormality was observed after 52d exposure. Obviously, a short-term (35d) exposure of 35 kV/m PFEF could cause kidney injury, which could be recovered after a longer-term (52d) exposure. Based on this study and relevant literatures, one explanation for this two-way effect is as follows. Kidney injury was caused by the disequilibrium of mitochondrial dynamics under 35 kV/m PFEF exposure. PFEF could also activate Wnt/β-catenin signal to promote the recovery of renal tubular epithelial cells and glomerular podocytes, so kidney injury could be repaired.
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Affiliation(s)
- Guoqing Di
- Institute of Environmental Process, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China.
| | - Li Dong
- Institute of Environmental Process, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Ziyin Xie
- Institute of Environmental Process, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yaqian Xu
- Institute of Environmental Process, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Junli Xiang
- Institute of Environmental Process, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
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Magnetic fields enhance the anti-tumor efficacy of low dose cisplatin and reduce the nephrotoxicity. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:1475-1485. [PMID: 32200461 DOI: 10.1007/s00210-020-01855-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 03/13/2020] [Indexed: 01/15/2023]
Abstract
The present work was to examine a combination of therapy for a low dose of cisplatin and a magnetic field (MF) on Ehrlich carcinoma-bearing mice. In this study, a total of 50 BALB/C female mice were equally distributed into five groups. Mice from the control group did not receive MF or cisplatin. The low and high dose cisplatin groups were injected intraperitoneal (i.p.) with 3 and 6 mg/kg cisplatin, respectively, on the experimental days (1, 4, and 8). Mice group of cisplatin + MF was injected with a low dose of cisplatin followed by MF exposure (50 Hz, 50 mT), and the MF group was exposed to MF only. The impact of MF and cisplatin on the tumor and kidney were evaluated by measuring superoxide dismutase (SOD) activity, malondialdehyde (MDA) and glutathione (GSH) levels, DNA injury (comet assay), histopathological investigation of tissues, and tumor progress. The results suggested that the combination of a low dose of cisplatin with MF was significantly elevated in MDA levels, reduced SOD activity, and GSH levels. Furthermore, it caused a rise in comet parameters and inhibition in tumor growth. These results showed that MF enhances the therapeutic efficacy of low cisplatin doses and reduces nephrotoxicity.
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Impact of Static Magnetic Field on the Antioxidant Defence System of Mice Fibroblasts. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5053608. [PMID: 29789797 PMCID: PMC5896275 DOI: 10.1155/2018/5053608] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 02/25/2018] [Indexed: 12/18/2022]
Abstract
Results of research assessing the biological impact of static magnetic fields are controversial. So far, they have not provided a clear answer to their influence on cell functioning. Since the use of permanent magnets both in everyday life and in industry becomes more and more widespread, the investigations are continued in order to explain these controversies and to evaluate positive applications. The goal of current work was to assess the impact of static magnetic field of different intensities on redox homeostasis in cultures of fibroblasts. The use of permanent magnets allowed avoiding the thermal effects which are present in electromagnets. During the research we used 6 chambers, designed exclusively by us, with different values of field flux density (varying from 0.1 to 0.7 T). We have noted the decrease in the activity of superoxide dismutase (SOD) and glutathione peroxidase (GPx). The static magnetic fields did not modify the energy state of fibroblasts— adenosine triphosphate (ATP) concentration was stable, as well as the generation of malondialdehyde (MDA)—which is a marker of oxidative stress. Results of research suggest that static magnetic fields generated by permanent magnets do not cause oxidative stress in investigated fibroblasts and that they may show slight antioxidizing activity.
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Ghodbane S, Ammari M, Lahbib A, Sakly M, Abdelmelek H. Static magnetic field exposure-induced oxidative response and caspase-independent apoptosis in rat liver: effect of selenium and vitamin E supplementations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:16060-16066. [PMID: 26062464 DOI: 10.1007/s11356-015-4802-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 05/27/2015] [Indexed: 06/04/2023]
Abstract
In the present study, we investigated the implication of oxidative stress and apoptosis under static magnetic field (SMF) in the brain and liver. Moreover, we estimated the protective role of selenium and vitamin E in rat tissues against disorders induced by SMF. Exposure of rats to SMF (128 mT, 1 h/day during five consecutive days) increased the activity of catalase (CAT) (+24 %) in the liver but not in the brain. By contrast, the same treatment failed to alter malondialdehyde (MDA) concentration in the brain and liver. Exposure to SMF also induced hepatocyte apoptosis through a caspase-independent pathway involving mitochondrial apoptosis-inducing factor (AIF) but not in the brain. Selenium and vitamin E supplementations to SMF-exposed rats restored liver CAT activity but failed to minimize liver apoptosis.
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Affiliation(s)
- Soumaya Ghodbane
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, Université de Carthage, 7021, Jarzouna, Tunisia.
| | - Mohamed Ammari
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, Université de Carthage, 7021, Jarzouna, Tunisia
- Institut Supérieur des Sciences Biologiques Appliquées de Tunis, Université de Tunis el Manar, Tunis, Tunisia
| | - Aida Lahbib
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, Université de Carthage, 7021, Jarzouna, Tunisia
| | - Mohsen Sakly
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, Université de Carthage, 7021, Jarzouna, Tunisia
| | - Hafedh Abdelmelek
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, Université de Carthage, 7021, Jarzouna, Tunisia
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Akdag MZ, Dasdag S, Uzunlar AK, Ulukaya E, Oral AY, Çelik N, Akşen F. Can safe and long-term exposure to extremely low frequency (50 Hz) magnetic fields affect apoptosis, reproduction, and oxidative stress? Int J Radiat Biol 2013; 89:1053-60. [PMID: 23786626 DOI: 10.3109/09553002.2013.817705] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE To determine whether 50 Hz extremely low frequency-magnetic fields (ELF-MF) affects apoptotic processes, oxidative damage, and reproductive characteristics such as sperm count and morphology in rat testes. MATERIALS AND METHODS Thirty male Sprague-Dawley rats were used in the present study, which were divided into three groups (sham group, n = 10, and two experimental groups, n = 10 for each group). Rats in the experimental group were exposed to 100 and 500 μT ELF-MF (2 h/day, 7 days/week, for 10 months) corresponding to exposure levels that are considered safe for humans. The same experimental procedures were applied to the sham group, but the ELF generator was turned off. Tissues from the testes were immunohistochemically stained for active (cleaved) caspase-3 in order to measure the apoptotic index by a semi-quantitative scoring system. The levels of catalase (CAT), malondialdehyde (MDA), myeloperoxidase (MPO), total antioxidative capacity (TAC), total oxidant status (TOS), and oxidative stress index (OSI) were also measured. Additionally, epididymal sperm count and sperm morphology was evaluated. RESULTS There were no significant differences in the reproductive and oxidative stress parameters between the sham group and the exposed groups (p > 0.05). While no difference was observed between the final apoptosis score of the sham and the 100 μT ELF-MF group (p > 0.05), the final apoptosis score was higher in the 500 μT ELF-MF exposure group than in the sham group (p < 0.05). CONCLUSION Long-term exposure to 100 μT and 500 μT ELF-MF did not affect oxidative or antioxidative processes, lipid peroxidation, or reproductive components such as sperm count and morphology in testes tissue of rats. However, long-term exposure to 500 μT ELF-MF did affect active-caspase-3 activity, which is a well-known apoptotic indicator.
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Ghodbane S, Amara S, Arnaud J, Garrel C, Faure H, Favier A, Sakly M, Abdelmelek H. Effect of selenium pre-treatment on plasma antioxidant vitamins A (retinol) and E (α-tocopherol) in static magnetic field-exposed rats. Toxicol Ind Health 2011; 27:949-55. [DOI: 10.1177/0748233711401261] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the present study, we evaluate the effect of the co-exposure to static magnetic field (SMF) and selenium (Se) on the antioxidant vitamins A and E levels and some other parameters of oxidative stress in rat. Sub-acute exposure of male adult rats to a uniform SMF (128 mT, 1 h/day during 5 consecutive days) increased plasma activity of glutathione peroxidase (+35%) but decreased α-tocopherol (−67%) and retinol levels (−41%). SMF exposure failed to alter the plasmatic thiobarbituric acid-reactive species (TBARs), total thiol groups and selenium concentrations. Sub-chronic administration of Se (Na2SeO3, 0.2 mg/L, for 30 consecutive days, per os) ameliorated the antioxidant capacities in SMF-treated rats. Our investigation demonstrated that sub-acute exposure to SMF induced oxidative stress, which may be prevented by a pretreatment with selenium.
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Affiliation(s)
- Soumaya Ghodbane
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, Jarzouna, Tunisia
- Laboratoire de Stress Oxydant, Département de Biologie Intégrée, CHU-Grenoble, France
| | - Salem Amara
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, Jarzouna, Tunisia
| | - Josiane Arnaud
- Laboratoire de Stress Oxydant, Département de Biologie Intégrée, CHU-Grenoble, France
| | - Catherine Garrel
- Laboratoire de Stress Oxydant, Département de Biologie Intégrée, CHU-Grenoble, France
| | - Henri Faure
- Laboratoire de Stress Oxydant, Département de Biologie Intégrée, CHU-Grenoble, France
| | - Alain Favier
- Laboratoire de Stress Oxydant, Département de Biologie Intégrée, CHU-Grenoble, France
| | - Mohsen Sakly
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, Jarzouna, Tunisia
| | - Hafedh Abdelmelek
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, Jarzouna, Tunisia
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Akdag MZ, Dasdag S, Ulukaya E, Uzunlar AK, Kurt MA, Taşkin A. Effects of extremely low-frequency magnetic field on caspase activities and oxidative stress values in rat brain. Biol Trace Elem Res 2010; 138:238-49. [PMID: 20177816 DOI: 10.1007/s12011-010-8615-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Accepted: 01/15/2010] [Indexed: 10/19/2022]
Abstract
This study was aimed to investigate the effect of extremely low-frequency magnetic field (ELF-MF) on apoptosis and oxidative stress values in the brain of rat. Rats were exposed to 100 and 500 µT ELF-MF, which are the safety standards of public and occupational exposure for 2 h/day for 10 months. Brain tissues were immunohistochemically stained for the active (cleaved) caspase-3 in order to measure the apoptotic index by a semi-quantitative scoring system. In addition, the levels of catalase (CAT), malondialdehyde (MDA), myeloperoxidase (MPO), total antioxidative capacity (TAC), total oxidant status (TOS), and oxidative stress index (OSI) were measured in rat brain. Final score of apoptosis and MPO activity were not significantly different between the groups. CAT activity decreased in both exposure groups (p < 0.05), while TAC was found to be lower in ELF 500 group than those in ELF-100 and sham groups (p < 0.05). MDA, TOS, and OSI values were found to be higher in ELF-500 group than those in ELF-100 and sham groups (p < 0.05). In conclusion, apoptosis was not changed by long-term ELF-MF exposure, while both 100 and 500 µT ELF-MF exposure induced toxic effect in the rat brain by increasing oxidative stress and diminishing antioxidant defense system.
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Affiliation(s)
- Mehmet Zulkuf Akdag
- Department of Biophysics, Medical School of Dicle University, 21280 Diyarbakir, Turkey
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Martínez-Sámano J, Torres-Durán PV, Juárez-Oropeza MA, Elías-Viñas D, Verdugo-Díaz L. Effects of acute electromagnetic field exposure and movement restraint on antioxidant system in liver, heart, kidney and plasma of Wistar rats: A preliminary report. Int J Radiat Biol 2010; 86:1088-94. [DOI: 10.3109/09553002.2010.501841] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Cifra M, Fields JZ, Farhadi A. Electromagnetic cellular interactions. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2010; 105:223-46. [PMID: 20674588 DOI: 10.1016/j.pbiomolbio.2010.07.003] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Accepted: 07/21/2010] [Indexed: 12/14/2022]
Abstract
Chemical and electrical interaction within and between cells is well established. Just the opposite is true about cellular interactions via other physical fields. The most probable candidate for an other form of cellular interaction is the electromagnetic field. We review theories and experiments on how cells can generate and detect electromagnetic fields generally, and if the cell-generated electromagnetic field can mediate cellular interactions. We do not limit here ourselves to specialized electro-excitable cells. Rather we describe physical processes that are of a more general nature and probably present in almost every type of living cell. The spectral range included is broad; from kHz to the visible part of the electromagnetic spectrum. We show that there is a rather large number of theories on how cells can generate and detect electromagnetic fields and discuss experimental evidence on electromagnetic cellular interactions in the modern scientific literature. Although small, it is continuously accumulating.
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Affiliation(s)
- Michal Cifra
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
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Seyhan N, Canseven AG. In Vivo Effects of ELF MFs on Collagen Synthesis, Free Radical Processes, Natural Antioxidant System, Respiratory Burst System, Immune System Activities, and Electrolytes in the Skin, Plasma, Spleen, Lung, Kidney, and Brain Tissues. Electromagn Biol Med 2009; 25:291-305. [PMID: 17178588 DOI: 10.1080/15368370601054787] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
In this study, the results related with the effects of 50 Hz, 0.2 mT-3 mT MFs exposures on collagen synthesis, epilepsy, electrolytes, lipid peroxidation (MDA), Nitric Oxide (NOx), respiratory burst system (MPO), antioxidant defense system (GSH), and immune system (NK cell activity) in spleen, skin, lung, kidney, brain, and plasma tissues performed at Gazi Biophysics Department are reviewed. Our studies indicate that ELF MFs had effects on the tissues examined.
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Affiliation(s)
- Nesrin Seyhan
- Department of Biophysics, Gazi University, Ankara, Turkey
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Effects of Continuous and Intermittent Magnetic Fields on Oxidative Parameters In vivo. Neurochem Res 2008; 34:238-43. [DOI: 10.1007/s11064-008-9760-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2008] [Accepted: 05/22/2008] [Indexed: 10/21/2022]
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Tohumoglu G, Canseven AG, Cevik A, Seyhan N. Formulation of ELF magnetic fields' effects on malondialdehyde level and myeloperoxidase activity in kidney using genetic programming. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2007; 86:1-9. [PMID: 17240475 DOI: 10.1016/j.cmpb.2006.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2006] [Revised: 12/14/2006] [Accepted: 12/15/2006] [Indexed: 05/13/2023]
Abstract
In vivo exposure effects of electromagnetic fields (EMFs) on various tissues of experiment animals have been investigated. In this sense, modeling and formulation of these biological effects have been of significant importance. In this study extremely low frequency (ELF) EMFs effects on malondialdehyde (MDA) level and myeloperoxidase (MPO) activity in kidney of guinea pigs exposed to 50 Hz magnetic fields of 1 mT, 2 mT and 3 mT have been presented. It has been planned to determine whether genetic programming (GP) is appropriate to analyze and formulate these biological effects. Consequently, it has been observed that GP can be effectively used to model MDA level and MPO activity. The performances of prediction of the proposed GP formulation versus actual experimental values are found to be quite satisfactory in terms of standard deviation and correlation coefficient. It is concluded that the GP application serves to form a database for the researchers in this field, without exposing tissues to EMF and without using too many guinea pigs.
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Affiliation(s)
- Gülay Tohumoglu
- Electrical and Electronics Engineering, University of Gaziantep, 27310 Gaziantep, Turkey.
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Amara S, Abdelmelek H, Garrel C, Guiraud P, Douki T, Ravanat JL, Favier A, Sakly M, Ben Rhouma K. Zinc supplementation ameliorates static magnetic field-induced oxidative stress in rat tissues. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2007; 23:193-197. [PMID: 21783757 DOI: 10.1016/j.etap.2006.09.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Revised: 08/29/2006] [Accepted: 09/05/2006] [Indexed: 05/31/2023]
Abstract
The present study was undertaken to find out the effect of zinc supplementation on the antioxidant enzymatic system, lipid peroxidation and DNA oxidation in liver and kidney of static magnetic field (SMF) exposed rats. The exposure of rats to SMF (128mT, 1h/day during 30 consecutive days) decreased the activities of glutathione peroxidase (GPx), catalase (CAT) and the superoxide dismutase (SOD) in liver and kidney. By contrast, sub-chronic exposure to SMF increased the malondialdehyde (MDA) concentration in liver and kidney. Our results revealed an increase of the 8-oxo-7,8-dihydro-2'-desoxyguanosine (8-oxodGuo) in kidney of SMF-exposed rats. However, this biomarker of DNA oxidation remained unchanged in liver. Zinc supplementation (ZnCl(2), 40mg/l, per os) in SMF-exposed rats restored the activities of GPx, CAT and SOD in liver to those of control group. However, only CAT activity was restored in kidney. Moreover, zinc administration was able to bring down the elevated levels of MDA in the liver but not in the kidney. Interestingly, zinc supplementation attenuated DNA oxidation induced by SMF in kidney to the control level. Our investigations suggested that zinc supplementation minimizes oxidative damage induced by SMF in rat tissues.
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Affiliation(s)
- Salem Amara
- Laboratoire de Physiologie Animale, Faculté des Sciences de Bizerte, 7021 Jarzouna, Tunisia; Laboratoire de Stress Oxydant, Département de Biologie Intégrée, CHU-Grenoble, France; Commissariat d' Energie Atomique DRFMC/SCIB, Laboratoire des Lésions des Acides Nucléiques, Grenoble, France
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Eraslan G, Bilgili A, Akdogan M, Yarsan E, Essiz D, Altintas L. Studies on antioxidant enzymes in mice exposed to pulsed electromagnetic fields. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2007; 66:287-9. [PMID: 16504294 DOI: 10.1016/j.ecoenv.2006.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2005] [Revised: 12/13/2005] [Accepted: 01/01/2006] [Indexed: 05/06/2023]
Abstract
In this study, 56 female albino mice weighing 30-35 g were used. The animals were divided into a control and an experimental group. The animals in the experimental group were subjected to a pulsed electromagnetic field (PEMF) with a field magnitude of 50 Hz and 2 mT for 8h each day between 0900 and 1700 for 90 days. In both control and experimental groups, blood was sampled at 45, 60, and 90 days in heparinized tubes and erythrocyte malondialdehyde levels, and superoxide dismutase, glutathione peroxidase, catalase, and glucose-6-phosphate dehydrogenase activities were determined. The results revealed that the PEMF applied chronically within the given period and field magnitude does not cause oxidative damage.
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Affiliation(s)
- Gokhan Eraslan
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey.
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Jelenković A, Janać B, Pesić V, Jovanović DM, Vasiljević I, Prolić Z. Effects of extremely low-frequency magnetic field in the brain of rats. Brain Res Bull 2005; 68:355-60. [PMID: 16377443 DOI: 10.1016/j.brainresbull.2005.09.011] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2005] [Revised: 09/19/2005] [Accepted: 09/22/2005] [Indexed: 11/16/2022]
Abstract
An extremely low-frequency magnetic field (50 Hz, 0.5 mT) was used to investigate its possible effect on the brain of adult male Wistar rats following a 7-day exposure. The control rats were sham-exposed. Superoxide dismutase activities and production of superoxide radicals, lipid peroxidation, and nitric oxide were examined in the frontal cortex, striatum, basal forebrain, hippocampus, brainstem, and cerebellum. Significantly increased superoxide radical contents were registered in all the structures examined. Production of nitric oxide, which can oppose superoxide radical activities, was significantly increased in some structures: the frontal cortex, basal forebrain, hippocampus, and brainstem. Augmentation of lipid peroxydation was also observed, with significance only in the basal forebrain and frontal cortex, in spite of the significantly increased superoxide dismutase activities and nitric oxide production in the basal forebrain, and increased production of nitric oxide in the frontal cortex. The results obtained indicate that a 7-day exposure to extremely low-frequency magnetic field can be harmful to the brain, especially to the basal forebrain and frontal cortex due to development of lipid peroxidation. Also, high production of superoxide anion in all regions may compromise nitric oxide signaling processes, due to nitric oxide consumption in the reaction with the superoxide radical.
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Affiliation(s)
- A Jelenković
- Institute for Biological Research Sinisa Stanković, Bulevar Despota Stefana 142, 11000 Beograd, Serbia and Montenegro.
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Sobczak A, Kula B, Danch A. Effects of Electromagnetic Field on Free‐Radical Processes in Steelworkers. Part II: Magnetic Field Influence on Vitamin A, E and Selenium Concentrations in Plasma. J Occup Health 2002. [DOI: 10.1539/joh.44.230] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Andrzej Sobczak
- Department of General and Analytical ChemistrySilesian School of Medicine
| | - Bogusław Kula
- Department of Experimental and Clinical BiochemistrySilesian School of Medicine40‐752 KatowicePoland
| | - Alojzy Danch
- Department of Experimental and Clinical BiochemistrySilesian School of Medicine40‐752 KatowicePoland
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17
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Kula B, Sobczak A, Kuśka R. Effects of Electromagnetic Field on Free‐Radical Processes in Steelworkers. Part I: Magnetic Field Influence on the Antioxidant Activity in Red Blood Cells and Plasma. J Occup Health 2002. [DOI: 10.1539/joh.44.226] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Bogusław Kula
- Department of Experimental and Clinical BiochemistrySilesian School of Medicine
| | - Andrzej Sobczak
- Department of General and Analytical ChemistrySilesian School of Medicine
| | - Rafał Kuśka
- Department of Medical BiophysicsSilesian School of MedicinePoland
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Kula B, Sobczak A, Kuśka R. A STUDY OF THE EFFECTS OF STATIC AND EXTREMELY LOW FREQUENCY MAGNETIC FIELDS ON LIPID PEROXIDATION PRODUCTS IN SUBCELLULAR FIBROBLAST FRACTIONS. Electromagn Biol Med 2002. [DOI: 10.1081/jbc-120006789] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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