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Şenol N, Şahin M, Şahin U. The protective role of 5-hydroxy-1,4-naphthoquinone against the harmful effects of 50 Hz electric field in rat lung tissue. Electromagn Biol Med 2023; 42:133-143. [PMID: 37811636 DOI: 10.1080/15368378.2023.2265935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 09/16/2023] [Indexed: 10/10/2023]
Abstract
There is strong scientific evidence that the electric field is harmful to life. Exposure to an electric field (EF) can cause lung toxicity and respiratory disorders. In addition, the electric field has been shown to cause tissue damage through inflammation and apoptosis. Juglone (JUG) is one of the powerful antioxidants with anti-apoptotic and anti-inflammatory, various pharmacological properties in the biological system. In this study, we evaluated the efficacy of JUG against the potential adverse effects of electric field on the lung. Twenty-four Wistar albino rats were randomly divided into three groups; control group (Cont), EF group, and EF exposure+JUG-treated group (EJUG). After routine histological procedures, sections stained with hematoxylin-eosin (H&E) showed significant changes in lung tissues in the EF group compared to the Cont group. Significant protective effects were observed in the building volumes and histopathology in the EJUG group. Our immunohistochemical and gene expression results increased the expression of caspase-3 and tumor necrosis factor alpha (TNF-α) in the EF group (p < 0.05). Juglon increased cytokine signal suppressor (SOCS) expression (p < 0.001). These findings were consistent with the antioxidant effect of JUG treatment. We reasoned that exposure to EF damaged rat lung tissues and administration of JUG alleviated the complications caused by 50 Hz EF.
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Affiliation(s)
- Nurgül Şenol
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Süleyman Demirel University, Isparta, Türkiye
| | - Melda Şahin
- Department of Bioengineering, Institute of Science, Süleyman Demirel University, Isparta, Türkiye
| | - Uğur Şahin
- Department of Chemistry, Faculty of Art and Science, University of Süleyman Demirel, Isparta, Türkiye
- Genetic Research Unit, Innovative Technologies Application and Research Center, Süleyman Demirel University, Isparta, Türkiye
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2
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Chi MS, Tien DC, Chi KH. Inhomogeneously distributed ferroptosis with a high peak-to-valley ratio may improve the antitumor immune response. Front Oncol 2023; 13:1178681. [PMID: 37700825 PMCID: PMC10494438 DOI: 10.3389/fonc.2023.1178681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 08/16/2023] [Indexed: 09/14/2023] Open
Abstract
Combined radiotherapy (RT) and mild hyperthermia have been used clinically for decades to increase local control. Both modalities tend to achieve a homogeneous dose distribution within treatment targets to induce immunogenic cell death. However, marked, and long-lasting abscopal effects have not usually been observed. We proposed a hypothesis to emphasize the importance of the peak-to-valley ratio of the dose distribution inside the tumor to induce immunogenic ferrroptosis in peak area while avoid nonimmunogenic ferroptosis in valley area. Although inhomogeneous distributed energy absorption has been noted in many anticancer medical fields, the idea of sedulously created dose inhomogeneity related to antitumor immunity has not been discussed. To scale up the peak-to-valley ratio, we proposed possible implications by the combination of nanoparticles (NP) with conventional RT or hyperthermia, or the use of a high modulation depth of extremely low frequency hyperthermia or high resolution spatially fractionated radiotherapy (SFRT) to enhance the antitumor immune reactions.
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Affiliation(s)
- Mau-Shin Chi
- Department of Radiation Therapy & Oncology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
- Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
| | - Der-Chi Tien
- Department of Radiation Therapy & Oncology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
| | - Kwan-Hwa Chi
- Department of Radiation Therapy & Oncology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
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3
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Dauda Usman J, Umar Isyaku M, Fasanmade AA. Evaluation of heart rate variability, blood pressure and lipid profile alterations from dual transceiver mobile phone radiation exposure. J Basic Clin Physiol Pharmacol 2020; 32:951-957. [PMID: 33146629 DOI: 10.1515/jbcpp-2020-0047] [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: 02/10/2020] [Accepted: 08/02/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Electromagnetic fields have been reported to alter electrical activities in the brain and heart. However, there is paucity of information on the potential functional alterations that magnetic fields from mobile phone could cause to the heart. This study investigated heart rate variability (HRV), blood pressure (BP) and lipid profile in Wistar rats exposed to electromagnetic field radiation from a dual transceiver mobile phone (DTrMP). METHODS Twenty-one male albino Wistar rats (140-180 g) were randomly assigned to two major groups positioned 5 m apart as follows: control: no phone (n=7) and treatment group (n=14) continuously exposed to electromagnetic field from Tecno T312 DTrMP 900/1800 MHz set in silence mode. Experimental treatment consisted in 10 min calls/day, directed to this device for a period of six weeks. Seven animals from the treatment group were allowed to recover for a period of two weeks after exposure. HRV, systolic, diastolic and mean arterial BP were noninvasively investigated, while serum lipid profile and heart tissue nitric oxide (NO) activities were determined using standard procedures. RESULTS There was significant (p<0.05) increase in systolic, diastolic, mean arterial BP and a decrease in HRV. Serum high density lipoproteins decreased, while total cholesterol, atherogenic indices, and heart NO levels increased significantly in the radiation exposed animals. The alterations observed in exposed animals remained unchanged even after the recovery period. CONCLUSIONS These results suggest that exposure to electromagnetic radiation from dual transceiver mobile phones could be a risk factor to increase in blood pressure.
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Affiliation(s)
- Jamil Dauda Usman
- Department of Human Physiology, College of Medicine and Health Sciences, Federal University Dutse, Dutse, Nigeria.,Department of Physiology, College of Medicine,University of Ibadan, Ibadan, Nigeria
| | - Mikail Umar Isyaku
- Department of Human Anatomy, College of Medicine and Health Sciences, Federal University Dutse, Dutse, Nigeria
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Bagheri Hosseinabadi M, Khanjani N, Norouzi P, Mirbadie SR, Fazli M, Mirzaii M. Oxidative stress associated with long term occupational exposure to extremely low frequency electric and magnetic fields. Work 2020; 68:379-386. [PMID: 32925155 DOI: 10.3233/wor-203244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Occupational exposure to extremely low frequency electromagnetic fields (ELF-EMFs) may have harmful effects on biologic systems and has raised many concerns in the last decades. OBJECTIVE The aim of this study was to determine the effects of exposure to extremely low frequency electric and magnetic fields on lipid peroxidation and antioxidant enzyme activities. METHODS This study was conducted on 115 power plant workers as the exposed group and 145 office workers as the non-exposed group. The levels of Malondialdehyde (MDA), superoxide dismutase (SOD), Catalase (Cat), and total antioxidant capacity (TAC) were measured in the serum of all subjects. Exposure to ELF-EMFs was measured based on spot measurements and the IEEE Std C95.3.1 standard. RESULTS The levels of MDA, SOD, and Cat in the exposed group were significantly higher than in the non-exposed group. However, the level of TAC was not significantly different between the exposed (2.45±1.02) and non-exposed (2.21±1.07) groups. The levels of MDA and SOD were higher among workers with higher exposure to electric fields than workers with low exposure. All oxidative stress indicators increased with increased exposure to magnetic fields, except TAC. CONCLUSIONS The antioxidant system imbalance among power plant workers may be related to long term occupational exposure to electromagnetic fields.
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Affiliation(s)
| | - Narges Khanjani
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Pirasteh Norouzi
- School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | | | - Mozhgan Fazli
- School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mehdi Mirzaii
- School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
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YAVAŞ MC. Uzun süre oldukça düşük frekanslı elektromanyetik alanlara maruz kalan bireylerin serumundaki değişiklikler. ACTA ACUST UNITED AC 2020. [DOI: 10.30569/adiyamansaglik.558935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lin Q, Dong L, Xu Y, Di G. Studies on effects of static electric field exposure on liver in mice. Sci Rep 2018; 8:15507. [PMID: 30341322 PMCID: PMC6195622 DOI: 10.1038/s41598-018-33447-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 09/26/2018] [Indexed: 02/08/2023] Open
Abstract
With the development of ultra-high-voltage direct-current transmission, the intensity of static electric field (SEF) under transmission lines increased, which has aroused public attention on its potential health effects. In order to examine effects of SEF exposure on liver, institute of cancer research mice were exposed to SEF with intensities of 27.5 kV/m, 34.7 kV/m and 56.3 kV/m, respectively. In each intensity of SEF exposure, a corresponding sham exposure group was used. Several indices relating to liver function (aspartate aminotransferase (AST) and alanine aminotransferase (ALT)) and oxidative stress (superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and malondialdehyde (MDA)) were tested after exposure of 7, 14, 21 and 35 days. Results showed that exposure to SEF with intensities of 27.5 kV/m and 34.7 kV/m for 35 days did not significantly influence any detected indices above. Under SEF exposure with intensity of 56.3 kV/m, the SOD activity in liver was significantly increased after exposure of 7 and 14 days. However, no significant increase was found in MDA content as well as the activities of AST and ALT between exposure group and sham exposure group during SEF exposure of 56.3 kV/m. It suggested that from three SEF intensities, only exposure to SEF with intensity of 56.3 kV/m (7 and 14 days) caused a temporary oxidative stress response in liver expressed by the increase in activity of SOD, but it did not produce oxidative damage. This biological effect may be related to the increase of mitochondrial membrane potential of hepatocytes caused by SEF exposure. When the membrane potential exceeds a threshold, Q cycle in mitochondria will be affected, which will result in an increase of superoxide anion concentration and ultimately an oxidative stress.
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Affiliation(s)
- Qinhao Lin
- 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
| | | | - Guoqing Di
- Institute of Environmental Process, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, PR China.
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Bektas H, Bektas MS, Dasdag S. Effects of mobile phone exposure on biochemical parameters of cord blood: A preliminary study. Electromagn Biol Med 2018; 37:184-191. [PMID: 30156944 DOI: 10.1080/15368378.2018.1499033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The purpose of this study is to investigate foetal impact of radiofrequencies (RFs) emitted from mobile phones in postnatal cord blood. The study carried on 149 pregnant women divided into four groups such as nonusers of mobile phone (n: 37; control group), 2-15 min/d (n: 39; group 1), 15-60 min/d (n: 37; group 2) and participants using mobile phone for more than 60 min/d (n: 36; group 3). Cord blood of the infants was taken in all groups for biochemical analyses immediately after birth. The results of the study showed that the biggest foetal impact was observed in the third study group which was pregnant exposed RFRs (RF radiation) more than 1 h/d (1 hour per day). AST (aspartat aminotransferaz), ALT (alanine aminotransferase), LDH (lactate dehydrogenase), CK (creatine kinase), CK-MB (creatine kinase-miyocardial band), CRP (c-reactive protein), PCT (procalcitonin), TnT (troponin T), uric acid and lactate levels of third group were found higher than the other groups (p < 0.001). However, Mean platelet volume values of third group were found lower than the other groups (p < 0.001). Finally, this is the first human study which was performed on pregnant and infants because there is no previous work in this area. However, the results of this study revealed that long-term RFR exposure of pregnant may result in some biochemical changes in the infants. Therefore, our suggestion to pregnant is to avoid from RFR exposure emitted from mobile phones at least during pregnancy.
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Affiliation(s)
- Hava Bektas
- a Department of Biophysics , Medical School of Van Yuzuncu Yil University , Van , Turkey
| | - Mehmet Selcuk Bektas
- b Department of Pediatrics, Division of Neonatology , Lokman Hekim Hospital , Van , Turkey
| | - Suleyman Dasdag
- c Department of Biophysics , Medical School of Istanbul Medeniyet University , Istanbul , Turkey
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Aslankoc R, Gumral N, Saygin M, Senol N, Asci H, Cankara FN, Comlekci S. The impact of electric fields on testis physiopathology, sperm parameters and DNA integrity-The role of resveratrol. Andrologia 2018; 50:e12971. [PMID: 29411409 DOI: 10.1111/and.12971] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/26/2017] [Indexed: 12/14/2022] Open
Abstract
This study investigated the long-term effects of electric fields (EF) which might cause physiopathological or morphological changes in the testis tissues of rats. We assumed that using resveratrol (RES) might reduce harmful effects of the EF. Thirty-two male Wistar Albino rats were randomly divided into four groups with eight animals in each; control, EF, EF + RES and RES. Malondialdehyde (MDA), superoxide dismutase, catalase, glutathione peroxidase and histopathological parameters were evaluated in testis tissue. Epididymal sperm count, motility and DNA damage were studied. Total testosterone, follicle-stimulating hormone, luteinising hormone, estradiol and growth hormone levels were evaluated in the plasma samples. EF caused statistically significant increase in MDA levels, body weight and DNA damage. A significant decrease was detected in sperm count and motility. The histopathological examination of the testes showed the germ cell decrease in the seminiferous epithelium with oedema and vascular congestion in the interstitial tissue. In immunohistochemical examination, the increase in the apoptotic cells number was detected. RES partially ameliorated biochemical, histopathological and immunohistochemical findings in the EF + RES group. These findings clearly demonstrated that EF can cause damage in rat testis. RES can ameliorate the damage caused by EF.
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Affiliation(s)
- R Aslankoc
- Department of Physiology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - N Gumral
- Department of Physiology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - M Saygin
- Department of Physiology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - N Senol
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Suleyman Demirel University, Isparta, Turkey
| | - H Asci
- Department of Pharmacology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - F N Cankara
- Department of Pharmacology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - S Comlekci
- Department of Electronics and Communication Engineering, Faculty of Engineering, Suleyman Demirel University, Isparta, Turkey
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Akpınar D, Gok DK, Hidisoglu E, Aslan M, Ozen S, Agar A, Yargicoglu P. Effects of pre- and postnatal exposure to extremely low-frequency electric fields on mismatch negativity component of the auditory event-related potentials: Relation to oxidative stress. Electromagn Biol Med 2016; 35:245-59. [PMID: 27070942 DOI: 10.3109/15368378.2015.1076727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In our previous study, the developmental effects of extremely low-frequency electric fields (ELF-EF) on visual and somatosensory evoked potentials in adult rats were studied. There is no study so far examining the effects of 50 Hz electric field (EF) on mismatch negativity (MMN) recordings after exposure of rats during development. Therefore, our present study aimed to investigate MMN and oxidative brain damage in rats exposed to EF (12 kV/m, 1 h/day). Rats were divided into four groups, namely control (C), prenatal (Pr), postnatal (Po), and prenatal+postnatal (PP). Pregnant rats of Pr and PP groups were exposed to EF during pregnancy. Following birth, rats of PP and Po groups were exposed to EF for three months. After exposure to EF, MMN was recorded by electrodes positioned stereotaxically to the surface of the dura, and then brain tissues were removed for histological and biochemical analyses. The MMN amplitude was higher to deviant tones than to standard tones. It was decreased in all experimental groups compared with the C group. 4-Hydroxy-2-nonenal (4-HNE) levels were significantly increased in the Po group with respect to the C group, whereas they were significantly decreased in the PP group compared with Pr and Po groups. Protein carbonyl levels were significantly decreased in the PP group compared with C, Pr, and Po groups. EF decreased MMN amplitudes were possibly induced by lipid peroxidation.
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Affiliation(s)
- Deniz Akpınar
- a Department of Biophysics , Akdeniz University , Antalya , Turkey
| | - Deniz Kantar Gok
- a Department of Biophysics , Akdeniz University , Antalya , Turkey
| | - Enis Hidisoglu
- a Department of Biophysics , Akdeniz University , Antalya , Turkey
| | - Mutay Aslan
- b Department of Biochemistry , Akdeniz University , Antalya , Turkey
| | - Sukru Ozen
- c Department of Electrical and Electronics Engineering , Akdeniz University , Antalya , Turkey
| | - Aysel Agar
- d Department of Physiology , Akdeniz University , Antalya , Turkey
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Wang Z, Wang L, Zheng S, Ding Z, Liu H, Jin W, Pan Y, Chen Z, Fei Y, Chen G, Xu Z, Yu Y. Effects of electromagnetic fields on serum lipids in workers of a power plant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:2495-2504. [PMID: 26423285 DOI: 10.1007/s11356-015-5500-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 09/23/2015] [Indexed: 06/05/2023]
Abstract
This study aimed to evaluate the effects of electromagnetic fields (EMF) exposure on levels of serum lipids in workers of an electric power plant. A cross-sectional study was carried out in an electric power plant in Zhejiang province, China, from August to September 2011. All participants were divided into two groups with high occupational EMF exposure and low occupational EMF exposure. The occupational EMF exposure included radiofrequency EMF and extremely low-frequency EMF. Occupational EMF exposure was associated with an increased level of low-density lipoprotein cholesterol (LDL-c; β = 0.17 mmol/L, P = 0.022). High EMF exposure group with longer employment duration, longer daily EMF exposure duration, and more mobile phone or electric fee per month had significantly higher levels of total cholesterol, LDL-c, or triglyceride than the corresponding reference group. However, significantly decreased level of high-density lipoprotein cholesterol was only observed in high EMF exposure group with more mobile phone fee per month. Similar results were also found in 544 participants with available data of serum lipids in 2010. The findings showed that chronic EMF exposure was associated with the change of serum lipid levels. EMF exposure might modulate the process of lipid metabolism.
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Affiliation(s)
- Zhaopin Wang
- Department of Epidemiology & Health Statistics, School of Public Health, Faculty of Medicine, Zhejiang University, 866 Yu-Hang-Tang Road, Xihu District, Hangzhou, 310058, Zhejiang, China
- Chronic Disease Research Institute, School of Public Health, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Lijuan Wang
- Department of Epidemiology & Health Statistics, School of Public Health, Faculty of Medicine, Zhejiang University, 866 Yu-Hang-Tang Road, Xihu District, Hangzhou, 310058, Zhejiang, China
- Chronic Disease Research Institute, School of Public Health, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Shuangshuang Zheng
- Department of Epidemiology & Health Statistics, School of Public Health, Faculty of Medicine, Zhejiang University, 866 Yu-Hang-Tang Road, Xihu District, Hangzhou, 310058, Zhejiang, China
- Chronic Disease Research Institute, School of Public Health, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zheyuan Ding
- Department of Epidemiology & Health Statistics, School of Public Health, Faculty of Medicine, Zhejiang University, 866 Yu-Hang-Tang Road, Xihu District, Hangzhou, 310058, Zhejiang, China
- Chronic Disease Research Institute, School of Public Health, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hui Liu
- Department of Epidemiology & Health Statistics, School of Public Health, Faculty of Medicine, Zhejiang University, 866 Yu-Hang-Tang Road, Xihu District, Hangzhou, 310058, Zhejiang, China
- Chronic Disease Research Institute, School of Public Health, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Wen Jin
- Department of Epidemiology & Health Statistics, School of Public Health, Faculty of Medicine, Zhejiang University, 866 Yu-Hang-Tang Road, Xihu District, Hangzhou, 310058, Zhejiang, China
- Chronic Disease Research Institute, School of Public Health, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yifeng Pan
- Department of Epidemiology & Health Statistics, School of Public Health, Faculty of Medicine, Zhejiang University, 866 Yu-Hang-Tang Road, Xihu District, Hangzhou, 310058, Zhejiang, China
- Chronic Disease Research Institute, School of Public Health, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zexin Chen
- Department of Epidemiology & Health Statistics, School of Public Health, Faculty of Medicine, Zhejiang University, 866 Yu-Hang-Tang Road, Xihu District, Hangzhou, 310058, Zhejiang, China
- Chronic Disease Research Institute, School of Public Health, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ying Fei
- Department of Epidemiology & Health Statistics, School of Public Health, Faculty of Medicine, Zhejiang University, 866 Yu-Hang-Tang Road, Xihu District, Hangzhou, 310058, Zhejiang, China
- Chronic Disease Research Institute, School of Public Health, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Guangdi Chen
- Bioelectromagnetics Laboratory, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhengping Xu
- Bioelectromagnetics Laboratory, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yunxian Yu
- Department of Epidemiology & Health Statistics, School of Public Health, Faculty of Medicine, Zhejiang University, 866 Yu-Hang-Tang Road, Xihu District, Hangzhou, 310058, Zhejiang, China.
- Chronic Disease Research Institute, School of Public Health, Faculty of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
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Elsisi HFEM, Mousa GSM, ELdesoky MTM. Electromagnetic field versus circuit weight training on bone mineral density in elderly women. Clin Interv Aging 2015; 10:539-47. [PMID: 25834412 PMCID: PMC4358665 DOI: 10.2147/cia.s78485] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND AND PURPOSE Osteoporosis is a common skeletal disorder with costly complications and a global health problem and one of the leading causes of morbidity and mortality worldwide. Magnetic field therapy and physical activity have been proven as beneficial interventions for prevention and treatment of osteoporosis. The purpose of this study was to compare the response of bone mineral content and bone mineral density (BMD) in elderly women to either low-frequency low-intensity pulsed magnetic field (LFLIPMF) or circuit weight training (CWT) on short-run basis (after 12 weeks). PATIENTS AND METHODS Thirty elderly women, aged 60-70 years, were randomly assigned into two groups (magnetic field and CWT) (n=15 each group). The session was performed three times per week for magnetic field and CWT groups, for 12 weeks. BMD and bone mineral content of lumbar spine (L2-L4) and femoral neck, trochanter, and Ward's triangle were evaluated before and after 12 weeks of treatment. RESULTS Both magnetic field and CWT for 12 weeks in elderly women seem to yield beneficial and statistically significant increasing effect on BMD and bone mineral content (P<0.05). But magnetic field seems to have more beneficially and statistically significant effect than does CWT. CONCLUSION It is possible to conclude that LFLIPMF and CWT programs are effective modalities in increasing BMD but LFLIPMF is more effective in elderly women.
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Affiliation(s)
- Hany Farid Eid Morsy Elsisi
- Department of Physical Therapy for Cardiovascular/Respiratory Disorder and Geriatrics, Cairo University, Cairo, Egypt
| | - Gihan Samir Mohamed Mousa
- Department of Physical Therapy for Cardiovascular/Respiratory Disorder and Geriatrics, Cairo University, Cairo, Egypt
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12
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Gok DK, Akpinar D, Hidisoglu E, Ozen S, Agar A, Yargicoglu P. The developmental effects of extremely low frequency electric fields on visual and somatosensory evoked potentials in adult rats. Electromagn Biol Med 2014; 35:65-74. [PMID: 25496054 DOI: 10.3109/15368378.2014.987923] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The purpose of our study was to investigate the developmental effects of extremely low frequency electric fields (ELF-EFs) on visual evoked potentials (VEPs) and somatosensory-evoked potentials (SEPs) and to examine the relationship between lipid peroxidation and changes of these potentials. In this context, thiobarbituric acid reactive substances (TBARS) levels were determined as an indicator of lipid peroxidation. Wistar albino female rats were divided into four groups; Control (C), gestational (prenatal) exposure (Pr), gestational+ postnatal exposure (PP) and postnatal exposure (Po) groups. Pregnant rats of Pr and PP groups were exposed to 50 Hz electric field (EF) (12 kV/m; 1 h/day), while those of C and Po groups were placed in an inactive system during pregnancy. Following parturition, rats of PP and Po groups were exposed to ELF-EFs whereas rats of C and Pr groups were kept under the same experimental conditions without being exposed to any EF during 68 days. On postnatal day 90, rats were prepared for VEP and SEP recordings. The latencies of VEP components in all experimental groups were significantly prolonged versus C group. For SEPs, all components of PP group, P2, N2 components of Pr group and P1, P2, N2 components of Po group were delayed versus C group. As brain TBARS levels were significantly increased in Pr and Po groups, retina TBARS levels were significantly elevated in all experimental groups versus C group. In conclusion, alterations seen in evoked potentials, at least partly, could be explained by lipid peroxidation in the retina and brain.
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Affiliation(s)
- Deniz Kantar Gok
- a Department of Biophysics , Faculty of Medicine, Akdeniz University , Antalya , Turkey
| | - Deniz Akpinar
- a Department of Biophysics , Faculty of Medicine, Akdeniz University , Antalya , Turkey
| | - Enis Hidisoglu
- a Department of Biophysics , Faculty of Medicine, Akdeniz University , Antalya , Turkey
| | - Sukru Ozen
- b Department of Electrical and Electronics Engineering , Engineering Faculty, Akdeniz University , Antalya , Turkey , and
| | - Aysel Agar
- c Department of Physiology , Faculty of Medicine, Akdeniz University , Antalya , Turkey
| | - Piraye Yargicoglu
- a Department of Biophysics , Faculty of Medicine, Akdeniz University , Antalya , Turkey
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13
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Kantar Gok D, Akpinar D, Yargicoglu P, Ozen S, Aslan M, Demir N, Derin N, Agar A. Effects of extremely low-frequency electric fields at different intensities and exposure durations on mismatch negativity. Neuroscience 2014; 272:154-66. [DOI: 10.1016/j.neuroscience.2014.04.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 04/18/2014] [Accepted: 04/26/2014] [Indexed: 01/17/2023]
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Ozgur E, Kismali G, Guler G, Akcay A, Ozkurt G, Sel T, Seyhan N. Effects of Prenatal and Postnatal Exposure to GSM-Like Radiofrequency on Blood Chemistry and Oxidative Stress in Infant Rabbits, an Experimental Study. Cell Biochem Biophys 2013; 67:743-51. [DOI: 10.1007/s12013-013-9564-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Akpinar D, Ozturk N, Ozen S, Agar A, Yargicoglu P. The effect of different strengths of extremely low-frequency electric fields on antioxidant status, lipid peroxidation, and visual evoked potentials. Electromagn Biol Med 2012; 31:436-48. [DOI: 10.3109/15368378.2012.692342] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Deniz Akpinar
- Department of Biophysics, Akdeniz University,
Antalya, Turkey
| | - Nihal Ozturk
- Department of Biophysics, Akdeniz University,
Antalya, Turkey
| | - Sukru Ozen
- Department of Electrical and Electronics Engineering, Akdeniz University,
Antalya, Turkey
| | - Aysel Agar
- Department of Physiology, Akdeniz University,
Antalya, Turkey
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Kismali G, Ozgur E, Guler G, Akcay A, Sel T, Seyhan N. The influence of 1800 MHz GSM-like signals on blood chemistry and oxidative stress in non-pregnant and pregnant rabbits. Int J Radiat Biol 2012; 88:414-9. [DOI: 10.3109/09553002.2012.661517] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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17
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Kiray A, Tayefi H, Kiray M, Bagriyanik HA, Pekcetin C, Ergur BU, Ozogul C. The effects of exposure to electromagnetic field on rat myocardium. Toxicol Ind Health 2012; 29:418-25. [DOI: 10.1177/0748233711434957] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Exposure to electromagnetic fields (EMFs) causes increased adverse effects on biological systems. The aim of this study was to investigate the effects of EMF on heart tissue by biochemical and histomorphological evaluations in EMF-exposed adult rats. In this study, 28 male Wistar rats weighing 200–250 g were used. The rats were divided into two groups: sham group ( n = 14) and EMF group ( n = 14). Rats in sham group were exposed to same conditions as the EMF group except the exposure to EMF. Rats in EMF group were exposed to a 50-Hz EMF of 3 mT for 4 h/day and 7 days/week for 2 months. After 2 months of exposure, rats were killed; the hearts were excised and evaluated. Determination of oxidative stress parameters was performed spectrophotometrically. To detect apoptotic cells, terminal deoxynucleotidyl transferase–mediated dUTP nick end labeling (TUNEL) staining and caspase-3 immunohistochemistry were performed. In EMF-exposed group, levels of lipid peroxidation significantly increased and activities of superoxide dismutase and glutathione peroxidase decreased compared with sham group. The number of TUNEL-positive cells and caspase-3 immunoreactivity increased in EMF-exposed rats compared with sham. Under electron microscopy, there were mitochondrial degeneration, reduction in myofibrils, dilated sarcoplasmic reticulum and perinuclear vacuolization in EMF-exposed rats. In conclusion, the results show that the exposure to EMF causes oxidative stress, apoptosis and morphologic damage in myocardium of adult rats. The results of our study indicate that EMF-related changes in rat myocardium could be the result of increased oxidative stress. Further studies are needed to demonstrate whether the exposure to EMF can induce adverse effects on myocardium.
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Affiliation(s)
- Amac Kiray
- Department of Anatomy, Dokuz Eylul University Medical School, Turkey
| | - Hamid Tayefi
- Department of Anatomy, Tehran University Medical School, Iran
| | - Muge Kiray
- Department of Physiology, Dokuz Eylul University Medical School, Turkey
| | | | - Cetin Pekcetin
- Department of Histology and Embryology, Dokuz Eylul University Medical School, Turkey
| | - Bekir Ugur Ergur
- Department of Histology and Embryology, Dokuz Eylul University Medical School, Turkey
| | - Candan Ozogul
- Department of Histology and Embryology, Gazi University Medical School, Turkey
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Zeng L, Ji X, Zhang Y, Miao X, Zou C, Lang H, Zhang J, Li Y, Wang X, Qi H, Ren D, Guo G. MnSOD expression inhibited by electromagnetic pulse radiation in the rat testis. Electromagn Biol Med 2011; 30:205-18. [DOI: 10.3109/15368378.2011.587929] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Chen YB, Li J, Liu JY, Zeng LH, Wan Y, Li YR, Ren D, Guo GZ. Effect of Electromagnetic Pulses (EMP) on associative learning in mice and a preliminary study of mechanism. Int J Radiat Biol 2011; 87:1147-54. [PMID: 21929296 DOI: 10.3109/09553002.2011.584937] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE To investigate the effects of electromagnetic pulses (EMP) on associative learning in mice and test a preliminary mechanism for these effects. MATERIALS AND METHODS A tapered parallel plate gigahertz transverse electromagnetic (GTEM) cell with a flared rectangular coaxial transmission line was used to expose male BALB/c mice to EMP (peak-intensity 400 kV/m, rise-time 10 ns, pulse-width 350 ns, 0.5 Hz and total 200 pulses). Concurrent sham-exposed mice were used as a control. Associative learning, oxidative stress in the brain, serum chemistry and the protective action of tocopherol monoglucoside (TMG) in mice were measured, respectively. RESULTS (1) Twelve hour and 1 day post EMP exposure associative learning was reduced significantly compared with sham control (p<0.05) but recovered at 2 d post EMP exposure. (2) Compared with the sham control, lipid peroxidation of brain tissue and chemiluminescence (CL) intensity increased significantly (p<0.05), while the activity of the antioxidant enzymes Superoxide Dismutase [SOD], Glutathione [GSH], Glutathione Peroxidase [GSH-Px], Catalase [CAT]) decreased significantly (p<0.05) at 3 h, 6 h, 12 h and 1 d post EMP exposure. All these parameters recovered at 2 d post EMP exposure. (3) No significant differences between the sham control group and EMP exposed group were observed in serum cholesterol and triglycerides. (4) Pretreatment of mice with TMG showed protective effects to EMP exposure. CONCLUSIONS EMP exposure significantly decreased associative learning in mice and TMG acted as an effective protective agent from EMP exposure. This mechanism could involve an increase of oxidative stress in brain by EMP exposure.
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Affiliation(s)
- Yong Bin Chen
- Fourth Military Medical University, Department of Radiation Medicine, Xi'an, PR China
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Morabito C, Guarnieri S, Fanò G, Mariggiò MA. Effects of acute and chronic low frequency electromagnetic field exposure on PC12 cells during neuronal differentiation. Cell Physiol Biochem 2011; 26:947-58. [PMID: 21220925 DOI: 10.1159/000324003] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS The purpose of this study was to provide information about the in vitro neuritogenesis during cell exposure to extremely low frequency electromagnetic fields (ELF-EMFs) of different intensities and durations using pheochromocytoma-derived cell line (PC12 cells) as neuronal model. METHODS Proliferative rates and neuritogenesis were tested by colorimetric assay and morphological analysis, respectively; reactive oxygen species (ROS) levels and intracellular Ca(2+) variations monitored using single cell videomicroscopy. RESULTS The long-lasting ELF-EMF exposure (0.1-1.0 mT) did not appear to significantly affect the biological response (proliferation and neuritogenesis). However, during the acute ELF-EMF exposure (30 min), in undifferentiated PC12 cells, there were increased ROS levels and decreased catalase activity, that, conversely, resulted increased after chronic exposure (7 days) at 1.0 mT. Acute exposure (0.1-1.0 mT) affected the spontaneous intracellular Ca(2+) variations in undifferentiated cells, in which basal intracellular Ca(2+) resulted increased after chronic exposure. In addition acute exposure affected cell response to a depolarizing agent, while basal membrane potential was not changed. CONCLUSION Even if further studies remain necessary to identify the ROS/intracellular Ca(2+)cross-talking pathway activated by ELF-EMF exposure, we support the hypothesis that ROS and Ca(2+) could be the cellular "primum movens" of the ELF-EMF induced effects on biological systems.
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Affiliation(s)
- Caterina Morabito
- Department Neuroscience and Imaging-Centro Studi sull'Invecchiamento (CeSI), G. d'Annunzio University of Chieti-Pescara, Chieti, Italy
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Tayefi H, Kiray A, Kiray M, Ergur BU, Bagriyanik HA, Pekcetin C, Fidan M, Ozogul C. The effects of prenatal and neonatal exposure to electromagnetic fields on infant rat myocardium. Arch Med Sci 2010; 6:837-42. [PMID: 22427754 PMCID: PMC3302692 DOI: 10.5114/aoms.2010.19288] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Revised: 08/22/2009] [Accepted: 10/08/2009] [Indexed: 01/21/2023] Open
Abstract
INTRODUCTION Electromagnetic fields (EMF) have adverse effects as a result of widespread use of electromagnetic energy on biological systems. The aim of this study was to investigate the effects of prenatal exposure to EMF on rat myocardium by biochemical and histopathological evaluations. MATERIAL AND METHODS In this study, 10 pregnant Wistar rats were used. Half of the pregnant rats were exposed to EMF of 3 mT, and the other half to sham conditions during gestation. After parturition, rat pups in the 5 EMF-exposed litters from birth until postnatal day 20 were exposed to EMF of 3 mT for 4 h/day (EMF-exposed group, n = 30). Rat pups in sham litters from birth until postnatal day 20 were exposed to sham conditions (sham group, n= 20). RESULTS In the EMF-exposed group, lipid peroxidation levels significantly increased compared to sham. Superoxide dismutase activities decreased significantly in the EMF-exposed group compared to sham. TUNEL staining showed that the number of TUNEL-positive cells increased significantly in EMF-exposed rats compared with sham. Under electron microscopy, there were mitochondrial degeneration, reduction in myofibrils, dilated sarcoplasmic reticulum and perinuclear vacuolization in EMF-exposed rats. CONCLUSIONS In conclusion, the results show that prenatal exposure to EMF causes oxidative stress, apoptosis and morphological pathology in myocardium of rat pups. The results of our study indicate a probable role of free radicals in the adverse effects of prenatal exposure to EMF. Further studies are needed to demonstrate whether the EMF exposure can induce adverse effects on the myocardium.
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Affiliation(s)
- Hamid Tayefi
- Departments of Anatomy, Dokuz Eylul University Medical School, Balcova, Izmir, Turkey
| | - Amac Kiray
- Departments of Anatomy, Dokuz Eylul University Medical School, Balcova, Izmir, Turkey
| | - Muge Kiray
- Departments of Histology & Embryology, Dokuz Eylul University Medical School, Balcova, Izmir, Turkey
| | - Bekir Ugur Ergur
- Departments of Histology & Embryology, Dokuz Eylul University Medical School, Balcova, Izmir, Turkey
| | - Husnu Alper Bagriyanik
- Departments of Histology & Embryology, Dokuz Eylul University Medical School, Balcova, Izmir, Turkey
| | - Cetin Pekcetin
- Departments of Histology & Embryology, Dokuz Eylul University Medical School, Balcova, Izmir, Turkey
| | - Mustafa Fidan
- Departments of Biophysics, Dokuz Eylul University Medical School, Balcova, Izmir, Turkey
| | - Candan Ozogul
- Departments of Histology & Embryology, Dokuz Eylul University Medical School, Balcova, Izmir, Turkey
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Sirav B, Tuysuz MZ, Canseven AG, Seyhan N. Evaluation of Non Ionizing Radiation Around the Dielectric Heaters and Sealers: A Case Report. Electromagn Biol Med 2010; 29:144-53. [DOI: 10.3109/07435800.2010.505149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Lahijani MS, Tehrani DM, Sabouri E. Histopathological and ultrastructural studies on the effects of electromagnetic fields on the liver of preincubated white Leghorn chicken embryo. Electromagn Biol Med 2010; 28:391-413. [PMID: 20017630 DOI: 10.3109/15368370903287689] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
There are several reports indicating a linkage between exposures to 50-60 Hz electromagnetic fields and abnormalities in the early stages of embryonic development of chicken embryos. The present study was designed to demonstrate whether electromagnetic fields could be an environmental factor invoking histopathological and ultra-structural changes in livers of preincubated chicken embryos exposed to EMFs. Following other researchers and our previous results from different groups of Developmental Biology at the Animal Sciences, Faculty of Biological Sciences, Shahid-Beheshti University, effects of most effective intensities (1.33, 2.66, 5.52, and 7.32 mT) of electromagnetic fields (EMFs, 50 Hz ) on livers of pre-incubated white leghorn chicken embryos were investigated . 150 healthy, fresh, and fertilized eggs (55-65 gr) were divided into 6 groups of experimental(1-4, n = 30), control (n = 60), and sham (n = 50). Experimental eggs (inside coil) were exposed to 4 different intensities (1.33, 2.66, 5.52, and 7.32 mT). Sham groups were located inside same coil, with no exposure, for 24 h before incubation. Control, sham, and experimental groups (1-4) were then incubated in an incubator (38 +/- 0.5 degrees C, 60% humidity) for 17 days. At the end of this period, livers of experimental, sham, and control groups were processed for light and transmission electrom microscopes (TEM and SEM) studies. So, livers of 17-day old chicken embryos were removed by C-sections, fixed in formalin 10%, stained with H&E and reticulin, and studied under light microscope. Others were prepared for electron microscopes (TEM and SEM) investigations. Morphological observations indicated exencephalic embryos, embryos with asymmetrical faces, crossed beak, shorter upper beak, deformed hind limbs, gastroschesis, anophthalmia, and microphthalmia. H&E and reticulin stainings, TEMS, and SEMs studies indicated EMFs would create hepato-cytes with fibrotic bands, severe steatohepatitis, vacuolizations, swollen and extremely electron-dense mitochondria, reduced invisible cristae, crystalized mitochondria with degenerated cristae, myelin-like figures, macrophages engulfing adjacent cells, dentated nuclei, nuclei with irregular envelopes, degenerated hepatocytes, abnormal lipid accumulations, lipid droplets pushing hepatocytes' nuclei to the corner of the cells, abundant cellular infiltrations cellular infiltrations inside sinusoid and around central veins, disrupted reticulin plexus, and release of chromatin into cytosol,, with partially regular water layers. An elevated oxyradical generation and, subsequently, cell membrane disruptions were the reasons for electromagnetic fields inducing cell damages.
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Affiliation(s)
- Maryam Shams Lahijani
- Animal Sciences, Faculty of Biological Sciences, Shahid-Beheshti University, G.C., Tehran, Iran.
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Li KC, Ma SR, Ding GR, Guo Y, Guo GZ. Effects of electromagnetic pulse on bone metabolism of mice in vivo. BIOMEDICAL AND ENVIRONMENTAL SCIENCES : BES 2009; 22:518-521. [PMID: 20337226 DOI: 10.1016/s0895-3988(10)60010-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
OBJECTIVE To study the effects of electromagnetic pulse (EMP) on bone metabolism of mice in vivo. METHODS Twenty-four male BALB/c mice were divided into a control group and 2 experimental groups (n=8). The whole-body of mice in experimental groups were exposed to 50 kV/m and 400kV/m EMP, 400 pulses daily for 7 consecutive days at 2 seconds intervals. Alkaline phosphotase (ALP) activity, serum calcium concentration and osteocalcin level and trabecular bone volume (BV/TV, %) were measured immediately after EMP exposure by biochemical, ELISA and morphological methods. RESULTS The ALP activity, serum calcium concentration and osteocalcin level and BV/TV in experimental groups remained unchanged after EMP exposure. Conclusion Under our experimental conditions, EMP exposure cannot affect bone metabolism of mice in vivo.
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Affiliation(s)
- Kang-Chu Li
- Department of Radiation Medicine, Fourth Military Medical University, Xi 'an 710032, Shaanxi China.
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Türközer Z, Güler G, Seyhan N. Effects of exposure to 50 Hz electric field at different strengths on oxidative stress and antioxidant enzyme activities in the brain tissue of guinea pigs. Int J Radiat Biol 2009; 84:581-90. [DOI: 10.1080/09553000802203606] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Güler G, Turkozer Z, Tomruk A, Seyhan N. The protective effects of N-acetyl-L-cysteine and Epigallocatechin-3-gallate on electric field-induced hepatic oxidative stress. Int J Radiat Biol 2009; 84:669-80. [DOI: 10.1080/09553000802241747] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Güler G, Türközer Z, Ozgur E, Seyhan N. Antioxidants alleviate electric field-induced effects on lung tissue based on assays of heme oxygenase-1, protein carbonyl content, malondialdehyde, nitric oxide, and hydroxyproline. THE SCIENCE OF THE TOTAL ENVIRONMENT 2009; 407:1326-1332. [PMID: 19027931 DOI: 10.1016/j.scitotenv.2008.10.050] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Revised: 10/08/2008] [Accepted: 10/08/2008] [Indexed: 05/27/2023]
Abstract
In order to test whether antioxidants have beneficiary effects on electric field induced damage, we determined the pulmonary levels of heme oxygenase-1 (HO-1), protein carbonyl content (PCO), malondialdehyde (MDA), nitric oxide (NO) and hydroxyproline (HP) under extremely low frequency (ELF) electric (E) field exposure (50 Hz, 12 kV/m, 7 days/for 8 h/day). While PCO levels significantly increased (p<0.05), insignificant changes (p>0.05) were observed in HO-1, MDA, NO and HP levels for electric field exposure groups compared to the control group. We have not observed any significant change in these parameters on the electric field group compared to the group where NAC and EGCG were separately applied along with electric field. However, during our previous studies, we have concluded that NAC and EGCG are potent antioxidants and we believe that new studies should be established by way of setting up different experimental conditions.
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Affiliation(s)
- Göknur Güler
- Department of Biophysics, Medical Faculty & Gazi Non-Ionizing Radiation Protection Center (GNRK), Gazi University, Besevler, 06500, Ankara, Turkey.
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