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Lin Y, Chen Y, Wang H, Yu Y, Wang Y, Ma S, Wang L, Ren H, Xu K. Weak magnetic field promotes denitrification by stimulating ferromagnetic ion-containing metalloprotein expression. WATER RESEARCH 2024; 262:122116. [PMID: 39032337 DOI: 10.1016/j.watres.2024.122116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/09/2024] [Accepted: 07/16/2024] [Indexed: 07/23/2024]
Abstract
Weak magnetic field (WMF) has been recognized to promote biological denitrification processes; however, the underlying mechanisms remain largely unexplored, hindering the optimization of its effectiveness. Here, we systematically investigated the effects of WMF on denitrification performance, enzyme activity, microbial community, and metaproteome in packed bed bioreactors treating high nitrate wastewater under different WMF intensities and C:N ratios. Results showed that WMFs significantly promoted denitrification by consistently stimulating the activities of denitrifying reductases and NAD+/NADH biosynthesis across decreasing C:N ratios. Reductases and electron transfer enzymes involved in denitrification were overproduced due to the significantly enriched overexpression of ferromagnetic ion-containing (FIC) metalloproteins. We also observed WMFs' intensity-dependent selective pressure on microbial community structures despite the effects being limited compared to those caused by changing C:N ratios. By coupling genome-centric metaproteomics and structure prediction, we found the dominant denitrifier, Halomonas, was outcompeted by Pseudomonas and Azoarcus under WMFs, likely due to its structural deficiencies in iron uptake, suggesting that advantageous ferromagnetic ion acquisition capacity was necessary to satisfy the substrate demand for FIC metalloprotein overproduction. This study advances our understanding of the biomagnetic effects in the context of complex communities and highlights WMF's potential for manipulating FIC protein-associated metabolism and fine-tuning community structure.
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Affiliation(s)
- Yuan Lin
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, N.O.163, Xianlin Avenue, Nanjing, Jiangsu 210023, PR China
| | - Yanting Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, N.O.163, Xianlin Avenue, Nanjing, Jiangsu 210023, PR China
| | - Haiyue Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, N.O.163, Xianlin Avenue, Nanjing, Jiangsu 210023, PR China
| | - Yuexin Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, N.O.163, Xianlin Avenue, Nanjing, Jiangsu 210023, PR China
| | - Yanru Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, N.O.163, Xianlin Avenue, Nanjing, Jiangsu 210023, PR China
| | - Sijia Ma
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, N.O.163, Xianlin Avenue, Nanjing, Jiangsu 210023, PR China
| | - Laichun Wang
- Yixing Environmental Research Institute of Nanjing University, Yixing, 214200, Jiangsu, PR China
| | - Hongqiang Ren
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, N.O.163, Xianlin Avenue, Nanjing, Jiangsu 210023, PR China
| | - Ke Xu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, N.O.163, Xianlin Avenue, Nanjing, Jiangsu 210023, PR China.
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Wójcik-Piotrowicz K, Kaszuba-Zwoińska J, Piszczek P, Nowak B, Guzdek P, Gil K, Rokita E. Low-frequency electromagnetic fields influence the expression of calcium metabolism related proteins in leukocytic cell lines. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 104:104320. [PMID: 37984675 DOI: 10.1016/j.etap.2023.104320] [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: 06/13/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 11/22/2023]
Abstract
Our study aimed to verify the hypothesis concerning low-frequency magnetic fields (LF-MFs)-related changes in cell viability through the biomechanism(s) based on calcineurin (CaN)-mediated signaling pathways triggered via ROS-like molecules. For experiments, Mono Mac 6 and U937 leukocytic cell lines were chosen and exposed to various LF-MFs and/or puromycin (PMC). The protein expression level of key regulatory proteins of calcium metabolism was examined by Western Blot analysis. In turn, the reactive oxygen species (ROS) and cell viability parameters were evaluated by cytochrome C reduction assay and flow cytometry, respectively. The simultaneous action of applied MF and PMC influenced cell viability in a MF-dependent manner. The changes in cell viability were correlated with protein expression and ROS levels. It was verified experimentally that applied stress stimuli influence cell susceptibility to undergo cell death. Moreover, the evoked bioeffects might be recognized as specific to both types of leukocyte populations.
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Affiliation(s)
- Karolina Wójcik-Piotrowicz
- Department of Biophysics, Jagiellonian University Medical College, Łazarza street 16, 31-530 Cracow, Poland.
| | - Jolanta Kaszuba-Zwoińska
- Department of Pathophysiology, Jagiellonian University Medical College, Czysta street 18, 31-121 Cracow, Poland
| | - Piotr Piszczek
- Department of Pathophysiology, Jagiellonian University Medical College, Czysta street 18, 31-121 Cracow, Poland
| | - Bernadeta Nowak
- Department of Immunology, Jagiellonian University Medical College, Czysta street 18, 31-121 Cracow, Poland
| | - Piotr Guzdek
- Łukasiewicz Research Network - Institute of Microelectronics and Photonics, Lotników street 32/46, 02-668 Warsaw, Poland
| | - Krzysztof Gil
- Department of Pathophysiology, Jagiellonian University Medical College, Czysta street 18, 31-121 Cracow, Poland
| | - Eugeniusz Rokita
- Department of Biophysics, Jagiellonian University Medical College, Łazarza street 16, 31-530 Cracow, Poland
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Lazzarini R, Eléxpuru-Zabaleta M, Piva F, Giulietti M, Fulgenzi G, Tartaglione MF, Zingaretti L, Tagliabracci A, Valentino M, Santarelli L, Bracci M. Effects of extremely low-frequency magnetic fields on human MDA-MB-231 breast cancer cells: proteomic characterization. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 253:114650. [PMID: 36805133 DOI: 10.1016/j.ecoenv.2023.114650] [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: 07/20/2022] [Revised: 01/29/2023] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
Extremely low-frequency electromagnetic fields (ELF-MF) can modify the cell viability and regulatory processes of some cell types, including breast cancer cells. Breast cancer is a multifactorial disease where a role for ELF-MF cannot be excluded. ELF-MF may influence the biological properties of breast cells through molecular mechanisms and signaling pathways that are still unclear. This study analyzed the changes in the cell viability, cellular morphology, oxidative stress response and alteration of proteomic profile in breast cancer cells (MDA-MB-231) exposed to ELF-MF (50 Hz, 1 mT for 4 h). Non-tumorigenic human breast cells (MCF-10A) were used as control cells. Exposed MDA-MB-231 breast cancer cells increased their viability and live cell number and showed a higher density and length of filopodia compared with the unexposed cells. In addition, ELF-MF induced an increase of the mitochondrial ROS levels and an alteration of mitochondrial morphology. Proteomic data analysis showed that ELF-MF altered the expression of 328 proteins in MDA-MB-231 cells and of 242 proteins in MCF-10A cells. Gene Ontology term enrichment analysis demonstrated that in both cell lines ELF-MF exposure up-regulated the genes enriched in "focal adhesion" and "mitochondrion". The ELF-MF exposure decreased the adhesive properties of MDA-MB-231 cells and increased the migration and invasion cell abilities. At the same time, proteomic analysis, confirmed by Real Time PCR, revealed that transcription factors associated with cellular reprogramming were upregulated in MDA-MB-231 cells and downregulated in MCF-10A cells after ELF-MF exposure. MDA-MB-231 breast cancer cells exposed to 1 mT 50 Hz ELF-MF showed modifications in proteomic profile together with changes in cell viability, cellular morphology, oxidative stress response, adhesion, migration and invasion cell abilities. The main signaling pathways involved were relative to focal adhesion, mitochondrion and cellular reprogramming.
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Affiliation(s)
- Raffaella Lazzarini
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
| | - Maria Eléxpuru-Zabaleta
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, 39011 Santander, Spain.
| | - Francesco Piva
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, 60131 Ancona, Italy.
| | - Matteo Giulietti
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, 60131 Ancona, Italy.
| | - Gianluca Fulgenzi
- Experimental Pathology, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
| | - Maria Fiorella Tartaglione
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
| | - Laura Zingaretti
- Occupational Medicine Unit, Marche University Hospital, 60126 Ancona, Italy.
| | - Adriano Tagliabracci
- Department of Excellence of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy.
| | - Matteo Valentino
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
| | - Lory Santarelli
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
| | - Massimo Bracci
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126 Ancona, Italy.
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Nguyen H, Segers S, Ledent M, Anthonissen R, Verschaeve L, Hinsenkamp M, Collard JF, Feipel V, Mertens B. Effects of long-term exposure to 50 Hz magnetic fields on cell viability, genetic damage, and sensitivity to mutagen-induced damage. Heliyon 2023; 9:e14097. [PMID: 36923833 PMCID: PMC10008985 DOI: 10.1016/j.heliyon.2023.e14097] [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: 09/30/2022] [Revised: 02/14/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
Until today, it remains controversial whether long-term exposure to extremely low-frequency magnetic fields (ELF-MF) below the legislative exposure limits could result in adverse human health effects. In the present study, the effects of long-term in vitro MF exposure on three different study endpoints (cell viability, genetic damage, and sensitivity to damage induced by known mutagens) were investigated in the human B lymphoblastoid (TK6) cell line. Cells were exposed to 50 Hz MF at three selected magnetic flux densities (i.e., 10, 100, and 500 μT) for different exposure periods ranging from 96h up to 6 weeks. Cell viability following MF exposure was assessed using the ATP-based cell viability assay. Effects of MF exposure on cell genetic damage and cell sensitivity to mutagen-induced damage were evaluated using the in vitro alkaline comet assay and the in vitro cytokinesis block micronucleus assay. The results showed that long-term exposure up to 96h to 50 Hz MF at all tested flux densities could significantly increase TK6 cell viability. In contrast, long-term MF exposure did not affect cell genetic damage, and long-term pre-exposure to MF did not change cell sensitivity to damage induced by known mutagens. At certain time points, statistically significant difference in genotoxicity test results were observed between the MF-exposed cells and the control cells. However, these observations could not be confirmed in the repeat experiments, indicating that they are probably not biologically significant.
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Affiliation(s)
- Ha Nguyen
- Scientific Direction Chemical and Physical Health Risks, Sciensano, 1050 Ixelles, Belgium.,Faculty of Medicine, Universite Libre de Bruxelles, 1070 Brussels, Belgium
| | - Seppe Segers
- Scientific Direction Chemical and Physical Health Risks, Sciensano, 1050 Ixelles, Belgium
| | - Maryse Ledent
- Scientific Direction Chemical and Physical Health Risks, Sciensano, 1050 Ixelles, Belgium
| | - Roel Anthonissen
- Scientific Direction Chemical and Physical Health Risks, Sciensano, 1050 Ixelles, Belgium
| | - Luc Verschaeve
- Scientific Direction Chemical and Physical Health Risks, Sciensano, 1050 Ixelles, Belgium
| | - Maurice Hinsenkamp
- Faculty of Medicine, Universite Libre de Bruxelles, 1070 Brussels, Belgium
| | | | - Veronique Feipel
- Faculty of Medicine, Universite Libre de Bruxelles, 1070 Brussels, Belgium
| | - Birgit Mertens
- Scientific Direction Chemical and Physical Health Risks, Sciensano, 1050 Ixelles, Belgium
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Elexpuru-Zabaleta M, Lazzarini R, Tartaglione MF, Piva F, Ciarapica V, Marinelli Busilacchi E, Poloni A, Valentino M, Santarelli L, Bracci M. A 50 Hz magnetic field influences the viability of breast cancer cells 96 h after exposure. Mol Biol Rep 2023; 50:1005-1017. [PMID: 36378418 PMCID: PMC9889515 DOI: 10.1007/s11033-022-08069-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 10/31/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND The exposure of breast cancer to extremely low frequency magnetic fields (ELF-MFs) results in various biological responses. Some studies have suggested a possible cancer-enhancing effect, while others showed a possible therapeutic role. This study investigated the effects of in vitro exposure to 50 Hz ELF-MF for up to 24 h on the viability and cellular response of MDA-MB-231 and MCF-7 breast cancer cell lines and MCF-10A breast cell line. METHODS AND RESULTS The breast cell lines were exposed to 50 Hz ELF-MF at flux densities of 0.1 mT and 1.0 mT and were examined 96 h after the beginning of ELF-MF exposure. The duration of 50 Hz ELF-MF exposure influenced the cell viability and proliferation of both the tumor and nontumorigenic breast cell lines. In particular, short-term exposure (4-8 h, 0.1 mT and 1.0 mT) led to an increase in viability in breast cancer cells, while long and high exposure (24 h, 1.0 mT) led to a decrease in viability and proliferation in all cell lines. Cancer and normal breast cells exhibited different responses to ELF-MF. Mitochondrial membrane potential and reactive oxygen species (ROS) production were altered after ELF-MF exposure, suggesting that the mitochondria are a probable target of ELF-MF in breast cells. CONCLUSIONS The viability of breast cells in vitro is influenced by ELF-MF exposure at magnetic flux densities compatible with the limits for the general population and for workplace exposures. The effects are apparent after 96 h and are related to the ELF-MF exposure time.
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Affiliation(s)
- Maria Elexpuru-Zabaleta
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, 39011, Santander, Spain
| | - Raffaella Lazzarini
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Maria Fiorella Tartaglione
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Francesco Piva
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, 60131, Ancona, Italy
| | - Veronica Ciarapica
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Elena Marinelli Busilacchi
- Section of Hematology, Department of Clinical and Molecular Science, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Antonella Poloni
- Section of Hematology, Department of Clinical and Molecular Science, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Matteo Valentino
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Lory Santarelli
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy.
| | - Massimo Bracci
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy.
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6
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Magnetic nanowires substrate increases adipose-derived mesenchymal cells osteogenesis. Sci Rep 2022; 12:16698. [PMID: 36202902 PMCID: PMC9537172 DOI: 10.1038/s41598-022-21145-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 09/22/2022] [Indexed: 11/08/2022] Open
Abstract
Magnetic nanomaterials are increasingly impacting the field of biology and medicine. Their versatility in terms of shape, structure, composition, coating, and magnetic responsivity make them attractive for drug delivery, cell targeting and imaging. Adipose derived-mesenchymal cells (ASCs) are intensely scrutinized for tissue engineering and regenerative medicine. However, differentiation into musculoskeletal lineages can be challenging. In this paper, we show that uncoated nickel nanowires (Ni NW) partially released from their alumina membrane offer a mechanically-responsive substrate with regular topography that can be used for the delivery of magneto-mechanical stimulation. We have used a tailored protocol for improving ASCs adherence to the substrate, and showed that cells retain their characteristic fibroblastic appearance, cytoskeletal fiber distribution and good viability. We report here for the first time significant increase in osteogenic but not adipogenic differentiation of ASCs on Ni NW exposed to 4 mT magnetic field compared to non-exposed. Moreover, magnetic actuation is shown to induce ASCs osteogenesis but not adipogenesis in the absence of external biochemical cues. While these findings need to be verified in vivo, the use of Ni NW substrate for inducing osteogenesis in the absence of specific differentiation factors is attractive for bone engineering. Implant coating with similar surfaces for orthopedic and dentistry could be as well envisaged as a modality to improve osteointegration.
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Xu W, Xie X, Wu H, Wang X, Cai J, Xu Z, E S. Pulsed electromagnetic therapy in cancer treatment: Progress and outlook. VIEW 2022. [DOI: 10.1002/viw.20220029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Wenjun Xu
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province College of Engineering Zhejiang Normal University Jinhua People's Republic of China
- Jinhua Intelligent Manufacturing Research Institute Jinhua People's Republic of China
| | - Xinjun Xie
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province College of Engineering Zhejiang Normal University Jinhua People's Republic of China
- Jinhua Intelligent Manufacturing Research Institute Jinhua People's Republic of China
| | - Hanyang Wu
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province College of Engineering Zhejiang Normal University Jinhua People's Republic of China
- Jinhua Intelligent Manufacturing Research Institute Jinhua People's Republic of China
| | - Xiaolin Wang
- College of Mathematical Medicine Zhejiang Normal University Jinhua People's Republic of China
| | - Jiancheng Cai
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province College of Engineering Zhejiang Normal University Jinhua People's Republic of China
- Jinhua Intelligent Manufacturing Research Institute Jinhua People's Republic of China
| | - Zisheng Xu
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province College of Engineering Zhejiang Normal University Jinhua People's Republic of China
- Jinhua Intelligent Manufacturing Research Institute Jinhua People's Republic of China
| | - Shiju E
- Key Laboratory of Urban Rail Transit Intelligent Operation and Maintenance Technology & Equipment of Zhejiang Province College of Engineering Zhejiang Normal University Jinhua People's Republic of China
- Jinhua Intelligent Manufacturing Research Institute Jinhua People's Republic of China
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Ahn TH, Kim DY, Kim HM, Oh W, Cho SB. Use of quantum molecular resonance energy for managing postrhinoseptoplasty perilesional edema and ecchymosis. J Cosmet Dermatol 2021; 21:3530-3536. [PMID: 34792272 DOI: 10.1111/jocd.14628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 11/02/2021] [Accepted: 11/09/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Quantum molecular resonance (QMR) technology employs nonionizing high-frequency waves ranging from 4 to 64 MHz to generate low-intensity quanta of energy that interacts with cellular components. AIMS To evaluate the efficacy and safety of QMR treatment on postoperative perilesional edema and ecchymosis in patients with rhinoseptoplasty or revision rhinoseptoplasty. PATIENTS/METHODS In total, 30 patients were treated with QMR stimulation therapy (QMR group) once daily for 5 days, while another 30 patients were treated with conventional icepack application (control group). The duration of perilesional edema and ecchymosis were comparatively evaluated according to anatomic regions. RESULTS In both groups, the longest duration of postoperative edema and ecchymosis was found on the left anterior cheek, followed by the right anterior cheek, left lower eyelid, right lower eyelid, and right and left upper eyelids. The mean duration of overall postoperative perilesional edema was significantly shorter in the QMR group (2.0 ± 0.8 days) than the control group (4.6 ± 2.0 days); the mean duration of overall ecchymosis was also markedly shorter in the QMR group (2.9 ± 1.5 days) than control group (7.5 ± 2.9 days). Patient satisfaction after postoperative QMR treatment was rated as 2.2 ± 0.8, whereas patient satisfaction in control group was rated as 1.6 ± 0.9. CONCLUSION Our clinical study demonstrated that postrhinoseptoplasty QMR treatment effectively reduces the duration of postoperative perilesional edema and ecchymosis without remarkable side effects. We suggest that QMR treatment can be considered as an alternative option for noninvasively managing postrhinoseptoplasty perilesional edema and ecchymosis.
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Affiliation(s)
- Tae Hwan Ahn
- Fresh Facial Aesthetic Surgery and ENT Clinic, Seoul, Korea
| | | | | | - Wook Oh
- Maylin Clinic (Yeouido), Seoul, Korea
| | - Sung Bin Cho
- Yonsei Seran Dermatology and Laser Clinic, Seoul, Korea
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Chen CH, Huang HP, Jang LS, Wang MH. An electrical model with microtubules, impedance measurements and COMSOL simulations for single MDA-MB-231 cells under extremely low frequency electromagnetic fields. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Wu J, Shangguan H, Fu T, Chen J, Tang J, Zeng RJ, Ye W, Zhou S. Alternating magnetic field mitigates N 2O emission during the aerobic composting of chicken manure. JOURNAL OF HAZARDOUS MATERIALS 2021; 406:124329. [PMID: 33158658 DOI: 10.1016/j.jhazmat.2020.124329] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 09/23/2020] [Accepted: 10/18/2020] [Indexed: 06/11/2023]
Abstract
Nitrous oxide (N2O) emission is an environmental problem related to composting. Recently, the electric field-assisted aerobic composting process has been found to be effective for enhancing compost maturity and mitigating N2O emission. However, the insertion of electrodes into the compost pile causes electrode erosion and inconvenience in practical operation. In this study, a novel alternating magnetic field-assisted aerobic composting (AMFAC) process was tested by applying an alternating magnetic field (AMF) to a conventional aerobic composting (CAC) process. The total N2O emission of the AMFAC process was reduced by 39.8% as compared with that of the CAC process. Furthermore, the results demonstrate that the AMF weakened the expressions of the amoA, narG, and nirS functional genes (the maximum reductions were 96%, 83.7%, and 95.5%, respectively), whereas it enhanced the expression of the nosZ functional gene by a maximum factor of 36.5 as compared with that in CAC. A correlation analysis revealed that the nitrification and denitrification processes for N2O emission were suppressed in AMFAC, the main source of N2O emission of which was denitrification. The findings imply that AMFAC is an effective strategy for the reduction of N2O emission during aerobic composting.
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Affiliation(s)
- Jiaxiong Wu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Huayuan Shangguan
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Tao Fu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jinjie Chen
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiahuan Tang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Raymond Jianxiong Zeng
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Wenyuan Ye
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shungui Zhou
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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11
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Bereta M, Teplan M, Chafai DE, Radil R, Cifra M. Biological autoluminescence as a noninvasive monitoring tool for chemical and physical modulation of oxidation in yeast cell culture. Sci Rep 2021; 11:328. [PMID: 33431983 PMCID: PMC7801494 DOI: 10.1038/s41598-020-79668-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 12/07/2020] [Indexed: 01/29/2023] Open
Abstract
Normal or excessive oxidative metabolism in organisms is essential in physiological and pathophysiological processes, respectively. Therefore, monitoring of biological oxidative processes induced by the chemical or physical stimuli is nowadays of extreme importance due to the environment overloaded with various physicochemical factors. Current techniques typically require the addition of chemical labels or light illumination, which perturb the samples to be analyzed. Moreover, the current techniques are very demanding in terms of sample preparation and equipment. To alleviate these limitations, we propose a label-free monitoring tool of oxidation based on biological autoluminescence (BAL). We demonstrate this tool on Saccharomyces cerevisiae cell culture. We showed that BAL can be used to monitor chemical perturbation of yeast due to Fenton reagents initiated oxidation-the BAL intensity changes with hydrogen peroxide concentration in a dose-dependent manner. Furthermore, we also showed that BAL reflects the effects of low-frequency magnetic field on the yeast cell culture, where we observed a disturbance of the BAL kinetics in the exposed vs. control case. Our results contribute to the development of novel techniques for label-free, real-time, noninvasive monitoring of oxidative processes and approaches for their modulation.
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Affiliation(s)
- Martin Bereta
- Institute of Measurement Science of the Slovak Academy of Sciences, Bratislava, Slovakia
- Faculty of Health, Catholic University in Ruzomberok, Ruzomberok, Slovakia
| | - Michal Teplan
- Institute of Measurement Science of the Slovak Academy of Sciences, Bratislava, Slovakia
| | - Djamel Eddine Chafai
- Institute of Photonics and Electronics of the Czech Academy of Sciences, Prague, Czechia
| | - Roman Radil
- Faculty of Electrical Engineering and Information Technology, University of Zilina, Zilina, Slovakia
| | - Michal Cifra
- Institute of Photonics and Electronics of the Czech Academy of Sciences, Prague, Czechia.
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12
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Karimi A, Ghadiri Moghaddam F, Valipour M. Insights in the biology of extremely low-frequency magnetic fields exposure on human health. Mol Biol Rep 2020; 47:5621-5633. [DOI: 10.1007/s11033-020-05563-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022]
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Extremely Low-Frequency Electromagnetic Fields Increase the Expression of Anagen-Related Molecules in Human Dermal Papilla Cells via GSK-3β/ERK/Akt Signaling Pathway. Int J Mol Sci 2020; 21:ijms21030784. [PMID: 31991762 PMCID: PMC7037017 DOI: 10.3390/ijms21030784] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/20/2020] [Accepted: 01/22/2020] [Indexed: 11/25/2022] Open
Abstract
Despite advances in medical treatments, the proportion of the population suffering from alopecia is increasing, thereby creating a need for new treatments to control hair loss and prevent balding. Human hair follicle dermal papilla cells (hDPCs), a type of specialized fibroblast in the hair bulb, play an essential role in controlling hair growth and in conditions like androgenic alopecia. This study aimed to evaluate the intensity-dependent effect of extremely low-frequency electromagnetic fields (ELF-EMFs) on the expression of anagen-related molecules in hDPCs in vitro. We examined the effect of ELF-EMF on hDPCs to determine whether activation of the GSK-3β/ERK/Akt signaling pathway improved hDPC activation and proliferation; hDPCs were exposed to ELF-EMFs at a frequency of 70 Hz and at intensities ranging from 5 to 100 G, over four days. Various PEMF intensities significantly increased the expression of anagen-related molecules, including collagen IV, laminin, ALP, and versican. In particular, an intensity of 10 G is most potent for promoting the proliferation of hDPC and expression of anagen-related molecules. Moreover, 10 G ELF-EMF significantly increased β-catenin and Wnt3α expression and GSK-3β/ERK/Akt phosphorylation. Our results confirmed that ELF-EMFs enhance hDPC activation and proliferation via the GSK-3β/ERK/Akt signaling pathway, suggesting a potential treatment strategy for alopecia.
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García-Minguillán O, Prous R, Ramirez-Castillejo MDC, Maestú C. CT2A Cell Viability Modulated by Electromagnetic Fields at Extremely Low Frequency under No Thermal Effects. Int J Mol Sci 2019; 21:ijms21010152. [PMID: 31878361 PMCID: PMC6981628 DOI: 10.3390/ijms21010152] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 11/16/2022] Open
Abstract
The effects produced by electromagnetic fields (EMFs) on human beings at extremely low frequencies (ELFs) have being investigated in the past years, across in vitro studies, using different cell lines. Nevertheless, the effects produced on cells are not clarified, and the cellular mechanisms and cell-signaling processes involved are still unknown. This situation has resulted in a division among the scientific community about the adequacy of the recommended level of exposure. In this sense, we consider that it is necessary to develop long-term exposure studies and check if the recommended levels of EMFs are under thermal effects. Hence, we exposed CT2A cells to different EMFs at different ELFs at short and long times. Our results showed frequency dependence in CT2A exposed during 24 h to a small EMF of 30 μT equal to those originated by the Earth and frequency dependence after the exposure during seven days to an EMF of 100 µT at different ELFs. Particularly, our results showed a remarkable cell viability decrease of CT2A cells exposed to EMFs of 30 Hz. Nevertheless, after analyzing the thermal effects in terms of HSP90 expression, we did not find thermal damages related to the differences in cell viability, so other crucial cellular mechanism should be involved.
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Affiliation(s)
- Olga García-Minguillán
- Escuela Técnica Superior de Ingenieros de Telecomunicación, Universidad Politécnica de Madrid, 28040 Madrid, Spain; (O.G.-M.); (R.P.)
- CTB (CTB-UPM) Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Spain
| | - Raquel Prous
- Escuela Técnica Superior de Ingenieros de Telecomunicación, Universidad Politécnica de Madrid, 28040 Madrid, Spain; (O.G.-M.); (R.P.)
| | | | - Ceferino Maestú
- Escuela Técnica Superior de Ingenieros de Telecomunicación, Universidad Politécnica de Madrid, 28040 Madrid, Spain; (O.G.-M.); (R.P.)
- CTB (CTB-UPM) Centro de Tecnología Biomédica, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Spain
- CIBER-BBN Centro de Investigación Biomédica en Red, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-9133-646-55
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Jang YW, Gil KC, Lee JS, Kang W, Park SY, Hwang KW. T-Cell Differentiation to T Helper 9 Phenotype is Elevated by Extremely Low-Frequency Electromagnetic Fields Via Induction of IL-2 Signaling. Bioelectromagnetics 2019; 40:588-601. [PMID: 31663626 DOI: 10.1002/bem.22219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 08/27/2019] [Indexed: 01/16/2023]
Abstract
Owing to the development of information technology and the electronics industry, and the increase in the use of electronic products, an increasing number of people are exposed to electromagnetic fields (EMFs) in daily life. There has been concern about the effects of EMFs on the human body. Th9 cells, which are characterized by the generation of interleukin-(IL-9), are a recently defined subset of T helper (Th) cells. In this study, we investigated the effect of extremely low-frequency (60 Hz) EMFs, such as those generated by household power sources, at 0.8 mT intensity on CD4+ T cells. The exposure of CD4+ T cells to such EMFs under Th9-polarizing conditions increased IL-9 secretion and gene expression of transcription factors that are important for Th9 development. The expression of GATA3 increased in the early stage, and the phosphorylation of STAT5 and STAT6, which regulate the expression of GATA3, increased. In addition, EMFs increased the expression of IL-2 by the T cells. In conclusion, the differentiation of CD4+ T cells to the Th9 phenotype was increased by exposure to extremely low-frequency EMFs, and this appeared to be dependent on the IL-2 signaling pathway. Furthermore, co-cultures of EMF-exposed Th9 cells and mast cells showed an increased expression of mast cell proteases, FcεR1α, and mast cell-derived inflammatory cytokines compared with co-cultures of non-EMF-exposed Th9 cells and mast cells. Our results suggest that EMFs enhance the differentiation of CD4+ T cells to the Th9 phenotype, resulting in mast cell activation and inflammation. Bioelectromagnetics. 2019;40:588-601. © 2019 Bioelectromagnetics Society.
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Affiliation(s)
- Ye Won Jang
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Ki Cheol Gil
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Ji Soo Lee
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - WonKu Kang
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - So-Young Park
- Laboratory of Pharmacognosy, College of Pharmacy, Dankook University, Cheonan, Republic of Korea
| | - Kwang Woo Hwang
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
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Fei Y, Su L, Lou H, Zhao C, Wang Y, Chen G. The effects of 50 Hz magnetic field-exposed cell culture medium on cellular functions in FL cells. JOURNAL OF RADIATION RESEARCH 2019; 60:424-431. [PMID: 31111909 PMCID: PMC6640911 DOI: 10.1093/jrr/rrz020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/22/2019] [Indexed: 05/19/2023]
Abstract
Although extremely low frequency magnetic fields (ELF-MFs) have been classified as a possible carcinogen for humans by the International Agency for Research on Cancer (IARC), their biological effects and underlying mechanisms are still unclear. Our previous study indicated that ELF-MF exposure influenced the relative permittivity of the saline solution, suggesting that the MF exposure altered physical properties of the solution. To explore the biophysical mechanism of ELF-MF-induced biological effects, this study examined the effects of 50 Hz sinusoidal MF at 0-4.0 mT on the permittivity of culture medium with phase-interrogation surface plasmon resonance (SPR) sensing. Then, the biological effects of MF pre-exposed culture medium on cell viability, the mitogen-activated protein kinase (MAPK) signaling pathways, oxidative stress, and genetic stabilities were analyzed using Cell Counting Kit-8, western blot, flow cytometry, γH2AX foci formation, and comet assay. The results showed that SPR signals were decreased under MF exposure in a time- and dose-dependent manner, and the decreased SPR signals were reversible when the exposure was drawn off. However, MF pre-exposed culture medium did not significantly change cell viability, intracellular reactive oxygen species level, activation of the MARK signaling pathways, or genetic stabilities in human amniotic epithelial cells (FL cells). In conclusion, our data suggest that the relative permittivity of culture medium was influenced by 50 Hz MF exposure, but this change did not affect the biological processes in FL cells.
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Affiliation(s)
- Yue Fei
- Bioelectromagnetics Laboratory, and Department of Reproductive Endocrinology of Women’s Hospital, Zhejiang University School of Medicine, 866 Yuhangtang Road, Hangzhou, China
| | - Liling Su
- Bioelectromagnetics Laboratory, and Department of Reproductive Endocrinology of Women’s Hospital, Zhejiang University School of Medicine, 866 Yuhangtang Road, Hangzhou, China
- Department of Clinical Medicine, Jiangxi Medical College, Zhimin Road, Shangrao, China
| | - Haifeng Lou
- Bioelectromagnetics Laboratory, and Department of Reproductive Endocrinology of Women’s Hospital, Zhejiang University School of Medicine, 866 Yuhangtang Road, Hangzhou, China
| | - Chuning Zhao
- Bioelectromagnetics Laboratory, and Department of Reproductive Endocrinology of Women’s Hospital, Zhejiang University School of Medicine, 866 Yuhangtang Road, Hangzhou, China
| | - Yiqin Wang
- State Key Laboratory of Modern Optical Instrumentation (Zhejiang University), Centre for Optical and Electromagnetics Research, Zhejiang Provincial Key Laboratory for Sensing Technologies, JORCEP (Sino-Swedish Joint Research Center of Photonics), Zhejiang University, 866 Yuhangtang Road, Hangzhou, China
| | - Guangdi Chen
- Bioelectromagnetics Laboratory, and Department of Reproductive Endocrinology of Women’s Hospital, Zhejiang University School of Medicine, 866 Yuhangtang Road, Hangzhou, China
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Significant Cellular Viability Dependence on Time Exposition at ELF-EMF and RF-EMF In Vitro Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16122085. [PMID: 31200435 PMCID: PMC6617398 DOI: 10.3390/ijerph16122085] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/07/2019] [Accepted: 06/09/2019] [Indexed: 02/06/2023]
Abstract
The human concern about the effect of electromagnetic fields (EMFs) has changed over time from the effects produced by EMFs of extremely low frequencies (ELFs) to the effects produced by exposure to a radio frequency (RF), with concerns shifting toward EMFs due to the development of new technologies and forms of communication. Previous studies have analysed the effects produced at different frequencies without considering in detail the effect of the time of exposure. Therefore, in the present study, we analysed in vitro the effect produced by a 100 µT EMF at different ELFs and exposure times in glioblastomas, as well as the effect produced in a fibroblast by an RF-EMF of 2.54 GHz. Our results indicate a significant time dependence in cell viability of fibroblasts exposed to an RF-EMF of 2.54 GHz and a non-time-dependent effect in cell viability of glioblastomas exposed to an ELF-EMF, highlighting the possible relation between frequency and time of exposure.
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Consales C, Panatta M, Butera A, Filomeni G, Merla C, Carrì MT, Marino C, Benassi B. 50-Hz magnetic field impairs the expression of iron-related genes in the in vitro SOD1 G93A model of amyotrophic lateral sclerosis. Int J Radiat Biol 2019; 95:368-377. [PMID: 30513241 DOI: 10.1080/09553002.2019.1552378] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE We characterized the response to the extremely low frequency magnetic field (ELF-MF) in an in vitro model of familial Amyotrophic Lateral Sclerosis (fALS), carrying two mutant variants of the superoxide dismutase 1 (SOD1) gene. MATERIALS AND METHODS SH-SY5Y human neuroblastoma cells, stably over-expressing the wild type, the G93A or the H46R mutant SOD1 cDNA, were exposed to either the ELF-MF (50 Hz, 1 mT) or the sham control field, up to 72 h. Analysis of (i) viability, proliferation and apoptosis, (ii) reactive oxygen species generation, and (iii) assessment of the iron metabolism, were carried out in all clones in response to the MF exposure. RESULTS We report that 50-Hz MF exposure induces: (i) no change in proliferation and viability; (ii) no modulation of the intracellular superoxide and H2O2 levels; (iii) a significant deregulation in the expression of iron-related genes IRP1, MFRN1 and TfR1, this evidence being exclusive for the SOD1G93A clone and associated with a slight (p = .0512) difference in the total iron content. CONCLUSIONS 50-Hz MF affects iron homeostasis in the in vitro SOD1G93A ALS model.
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Affiliation(s)
- Claudia Consales
- a Department of Energy and Sustainable Economic Development , Division of Health Protection Technologies, ENEA-Italian National Agency for New Technologies , Rome , Italy
| | - Martina Panatta
- a Department of Energy and Sustainable Economic Development , Division of Health Protection Technologies, ENEA-Italian National Agency for New Technologies , Rome , Italy.,b Department of Chemistry and Biochemistry , University of Bern , Bern , Switzerland
| | - Alessio Butera
- a Department of Energy and Sustainable Economic Development , Division of Health Protection Technologies, ENEA-Italian National Agency for New Technologies , Rome , Italy
| | - Giuseppe Filomeni
- c Department of Biology , University of Rome Tor Vergata , Rome , Italy.,d Cell Stress and Survival Unit, Center for Autophagy, Recycling and Disease (CARD) , Danish Cancer Society Research Center , Copenhagen , Denmark
| | - Caterina Merla
- a Department of Energy and Sustainable Economic Development , Division of Health Protection Technologies, ENEA-Italian National Agency for New Technologies , Rome , Italy
| | | | - Carmela Marino
- a Department of Energy and Sustainable Economic Development , Division of Health Protection Technologies, ENEA-Italian National Agency for New Technologies , Rome , Italy
| | - Barbara Benassi
- a Department of Energy and Sustainable Economic Development , Division of Health Protection Technologies, ENEA-Italian National Agency for New Technologies , Rome , Italy
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19
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Solek P, Majchrowicz L, Koziorowski M. Aloe arborescens juice prevents EMF-induced oxidative stress and thus protects from pathophysiology in the male reproductive system in vitro. ENVIRONMENTAL RESEARCH 2018; 166:141-149. [PMID: 29886390 DOI: 10.1016/j.envres.2018.05.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 05/21/2018] [Accepted: 05/30/2018] [Indexed: 06/08/2023]
Abstract
More and more studies suggest that prolonged exposure to EMF may cause adverse biological effects and point directly to a significantly negative correlation between EMF and human health, especially men fertility. In our previous study, we reported that this could be related to the EMF-induced reactive oxygen species formation, followed by DNA damage, cell cycle arrest and apoptosis induction. In this study, we decided to expand our research by the search for substances which would prevent EMF-induced damage in spermatogenic cells. Such an agent seems to be Aloe arborescens Mill. juice, which was shown to possess a wide range of protective properties. The administration of aloe extract helps among others to prevent the formation of free radicals by various biochemical pathways. Therefore, the main aim of our study was to provide a significant knowledge concerning the mechanism involved in the multi-pathway cytoprotective response of aloe juice against EMF. The study was carried out in an in vitro mouse spermatogenesis pathway cell lines (GC-1 spg and GC-2 spd). Our results suggest that the aloe juice has many positive effects, especially for the cellular antioxidant systems by reducing the intracellular reactive oxygen species pool induced by EMF. In consequence, aloe juice prevents DNA damage, cell cycle arrest and therefore the viability and metabolic activity of both cell line tested are preserved. In conclusion, our study provides new insight into the underlying mechanisms through which aloe juice prevents spermatogenic cells from cytotoxic and genotoxic events.
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Affiliation(s)
- Przemyslaw Solek
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland; Centre of Applied Biotechnology and Basic Sciences, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland.
| | - Lena Majchrowicz
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland; Centre of Applied Biotechnology and Basic Sciences, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland
| | - Marek Koziorowski
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland; Centre of Applied Biotechnology and Basic Sciences, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland
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20
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Rescigno T, Capasso A, Bisceglia B, Tecce MF. Short Exposures to an Extremely Low-Frequency Magnetic Field (ELF MF) Enhance Protein but not mRNA Alkaline Phosphatase Expression in Human Osteosarcoma Cells. Open Biochem J 2018; 12:65-77. [PMID: 29760814 PMCID: PMC5906974 DOI: 10.2174/1874091x01812010065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 11/22/2022] Open
Abstract
Background Among electromagnetic fields treatments used in orthopedics, extremely low-frequency magnetic fields (ELF MF) need more detailed information about the molecular mechanisms of their effects and exposure conditions. Objective Evaluation of the effects of an ELF MF exposure system, recently introduced among current clinical treatments for fracture healing and other bone diseases, on Alkaline Phosphatase (ALP) activity and expression in a human osteosarcoma cell line (SaOS-2), as marker typically associated to osteogenesis and bone tissue regeneration. Method Cells were exposed to the ELF MF physical stimulus (75 Hz, 1.5 mT) for 1h. Cell viability, enzymatic activity, protein and mRNA expression of alkaline phosphatase were then measured at different times after exposure (0, 4 and 24 h). Results Data demonstrate that this signal is active on an osteogenic process already one hour after exposure. Treatment was, in fact, capable, even after an exposure shorter than those commonly used in clinical applications, to significantly up-regulate alkaline phosphatase enzymatic activity. This regulation is produced essentially through an increase of ALP protein level, without changes of its mRNA concentration, while assessed magnetic field did not affect cell growth and viability and did not produce temperature variations. Conclusion Tested low-frequency magnetic field affects cellular ALP expression with a posttranslational mechanism, without the involvement of regulations at gene transcription and mRNA level. This molecular effect is likely produced even within treated tissues during therapies with this signal and may be implicated in the induction of observed effects in treated patients.
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Affiliation(s)
- Tania Rescigno
- Department of Pharmacy, University of Salerno, Fisciano (SA), Italy
| | - Anna Capasso
- Department of Pharmacy, University of Salerno, Fisciano (SA), Italy
| | - Bruno Bisceglia
- Department of Pharmacy, University of Salerno, Fisciano (SA), Italy
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21
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Ocal I, Yilmaz MB, Kocaturk-Sel S, Tufan T, Erkoc MA, Comertpay G, Oksuz H, Barc ED. ATP sensitive K + channel subunits (Kir6.1, Kir6.2) are the candidate mediators regulating ameliorating effects of pulsed magnetic field on aortic contractility in diabetic rats. Bioelectromagnetics 2018; 39:299-311. [PMID: 29446477 DOI: 10.1002/bem.22111] [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] [Received: 08/08/2016] [Accepted: 12/13/2017] [Indexed: 11/11/2022]
Abstract
Diabetes mellitus is a metabolic disease that causes increased morbidity and mortality in developed and developing countries. With recent advancements in technology, alternative treatment methods have begun to be investigated in the world. This study aims to evaluate the effect of pulsed magnetic field (PMF) on vascular complications and contractile activities of aortic rings along with Kir6.1 and Kir6.2 subunit expressions of ATP-sensitive potassium channels (KATP ) in aortas of controlled-diabetic and non-controlled diabetic rats. Controlled-diabetic and non-controlled diabetic adult male Wistar rats were exposed to PMF for a period of 6 weeks according to the PMF application protocol (1 h/day; intensity: 1.5 mT; consecutive frequency: 1, 10, 20, and 40 Hz). After PMF exposure, body weight and blood glucose levels were measured. Then, thoracic aorta tissue was extracted for relaxation-contraction and Kir6.1 and Kir6.2 expression experiments. Blood plasma glucose levels, body weight, and aortic ring contraction percentage decreased in controlled-diabetic rats but increased in non-controlled diabetic rats. PMF therapy repressed Kir6.1 mRNA expression in non-controlled diabetic rats but not in controlled diabetic rats. Conversely, Kir6.2 mRNA expressions were repressed both in controlled diabetic and non-controlled diabetic rats by PMF. Our findings suggest that the positive therapeutic effects of PMF may act through (KATP ) subunits and may frequently occur in insulin-free conditions. Bioelectromagnetics. 39:299-311, 2018. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Isil Ocal
- Faculty of Medicine, Department of Biophysics, Cukurova University, Adana, Turkey
| | - Mehmet B Yilmaz
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Sabriye Kocaturk-Sel
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Turan Tufan
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Mehmet A Erkoc
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Gamze Comertpay
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Hale Oksuz
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Esma D Barc
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
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22
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Sella S, Adami V, Amati E, Bernardi M, Chieregato K, Gatto P, Menarin M, Pozzato A, Pozzato G, Astori G. In-vitro analysis of Quantum Molecular Resonance effects on human mesenchymal stromal cells. PLoS One 2018; 13:e0190082. [PMID: 29293552 PMCID: PMC5749755 DOI: 10.1371/journal.pone.0190082] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 12/07/2017] [Indexed: 01/08/2023] Open
Abstract
Electromagnetic fields play an essential role in cellular functions interfering with cellular pathways and tissue physiology. In this context, Quantum Molecular Resonance (QMR) produces waves with a specific form at high-frequencies (4–64 MHz) and low intensity through electric fields. We evaluated the effects of QMR stimulation on bone marrow derived mesenchymal stromal cells (MSC). MSC were treated with QMR for 10 minutes for 4 consecutive days for 2 weeks at different nominal powers. Cell morphology, phenotype, multilineage differentiation, viability and proliferation were investigated. QMR effects were further investigated by cDNA microarray validated by real-time PCR. After 1 and 2 weeks of QMR treatment morphology, phenotype and multilineage differentiation were maintained and no alteration of cellular viability and proliferation were observed between treated MSC samples and controls. cDNA microarray analysis evidenced more transcriptional changes on cells treated at 40 nominal power than 80 ones. The main enrichment lists belonged to development processes, regulation of phosphorylation, regulation of cellular pathways including metabolism, kinase activity and cellular organization. Real-time PCR confirmed significant increased expression of MMP1, PLAT and ARHGAP22 genes while A2M gene showed decreased expression in treated cells compared to controls. Interestingly, differentially regulated MMP1, PLAT and A2M genes are involved in the extracellular matrix (ECM) remodelling through the fibrinolytic system that is also implicated in embryogenesis, wound healing and angiogenesis. In our model QMR-treated MSC maintained unaltered cell phenotype, viability, proliferation and the ability to differentiate into bone, cartilage and adipose tissue. Microarray analysis may suggest an involvement of QMR treatment in angiogenesis and in tissue regeneration probably through ECM remodelling.
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Affiliation(s)
- Sabrina Sella
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
| | - Valentina Adami
- High Throughput Screening Core Facility, Center for Integrative Biology, University of Trento, Trento, Italy
| | - Eliana Amati
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
| | - Martina Bernardi
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
- Hematology Project Foundation, Vicenza, Italy
| | - Katia Chieregato
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
- Hematology Project Foundation, Vicenza, Italy
| | - Pamela Gatto
- High Throughput Screening Core Facility, Center for Integrative Biology, University of Trento, Trento, Italy
| | - Martina Menarin
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
| | | | | | - Giuseppe Astori
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
- * E-mail:
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Cichoń N, Bijak M, Miller E, Saluk J. Extremely low frequency electromagnetic field (ELF-EMF) reduces oxidative stress and improves functional and psychological status in ischemic stroke patients. Bioelectromagnetics 2017; 38:386-396. [DOI: 10.1002/bem.22055] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 04/04/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Natalia Cichoń
- Department of General Biochemistry; University of Lodz; Lodz Poland
| | - Michał Bijak
- Department of General Biochemistry; University of Lodz; Lodz Poland
| | - Elżbieta Miller
- Department of Physical Medicine; Medical University of Lodz; Lodz Poland
- Neurorehabilitation Ward; III General Hospital in Lodz; Lodz Poland
| | - Joanna Saluk
- Department of General Biochemistry; University of Lodz; Lodz Poland
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24
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Kim SJ, Jang YW, Hyung KE, Lee DK, Hyun KH, Jeong SH, Min KH, Kang W, Jeong JH, Park SY, Hwang KW. Extremely low-frequency electromagnetic field exposure enhances inflammatory response and inhibits effect of antioxidant in RAW 264.7 cells. Bioelectromagnetics 2017; 38:374-385. [PMID: 28370033 DOI: 10.1002/bem.22049] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 02/25/2017] [Indexed: 12/20/2022]
Abstract
In recent years, there has been a dramatic increase in the number and variety of electronic devices that emit electromagnetic waves. Because people live and work in close proximity to these pieces of electrical equipment, there is growing concern surrounding the destruction of homeostasis by electromagnetic field exposure. In the present study, the effects of 60 Hz 0.8 mT extremely low-frequency electromagnetic fields (ELF-EMF) on a macrophage cell line (RAW 264.7) were examined. Under defined ELF-EMF exposure conditions, the production of nitric oxide and pro-inflammatory cytokines, TNF-α, IL-1β, and IL-6, were increased in RAW 264.7 cells and the expression of those genes was also upregulated. However, cell proliferation was not altered. Translocation of NF-κB (nuclear factor kappa B), molecules that act downstream of the pro-inflammatory cytokines, were increased to the nucleus under ELF-EMF exposure conditions. In addition, we found that ELF-EMF exposure elevated activation of nuclear factor of activated T cells (NFAT) 2, as well as positively affected the influx of calcium. Furthermore, with both the presence of a potent antioxidant (Resveratrol) and downregulation of the antioxidant-related gene Prx-1 (Peroxiredoxin-1), ELF-EMF was associated with higher inflammatory responses of macrophages. These results suggest that an ELF-EMF amplifies inflammatory responses through enhanced macrophage activation and can decrease the effectiveness of antioxidants. Bioelectromagnetics. 38:374-385, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Soo Jeong Kim
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Ye Won Jang
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Kyung Eun Hyung
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Da Kyoung Lee
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Kee Hyeob Hyun
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | | | - Kyung Hoon Min
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Wonku Kang
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Ji Hoon Jeong
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - So-Young Park
- Laboratory of Pharmacognosy, College of Pharmacy, Dankook University, Cheonan, Republic of Korea
| | - Kwang Woo Hwang
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
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25
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Cho SE, Kim YM, Kang KH, Kim SC, Park JK, Seo YK. Pigmentation effect of electromagnetic fields at various intensities to melanocytes. Tissue Eng Regen Med 2016; 13:560-567. [PMID: 30603437 PMCID: PMC6170843 DOI: 10.1007/s13770-016-0090-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 07/13/2016] [Accepted: 07/19/2016] [Indexed: 11/29/2022] Open
Abstract
Melanogenesis is the biological process that results in the synthesis of skin pigment of melanin and it has various functions in living systems and is synthesized by the melanosome within the melanocytes. A variety of physical treatments are used to promote melanin production in the melanocytes for pigmentation control. The purpose of this study was to evaluate the intensity-dependent effect of extremely low-frequency electromagnetic fields (ELF-EMFs) on melanogenesis by melanocytes in vitro. Melanocytes were exposed to ELF-EMFs at a frequency of 50 Hz and at intensities in the range of 0.5-20 G over 4 days. The results of lactate dehydrogenase assay showed that there were no significant differences between cells exposed to 0.5 G or 2 G groups and the controls. The melanin contents increased 1.2-1.5-fold in cells exposed to ELF-EMFs and tyrosinase activity increased 1.3-fold in cells exposed to ELF-EMFs, relative to the controls. Also, exposure to ELF-EMFs was associated with activation in cyclic-AMP response element binding protein and microphthalmia-associated transcription factor (MITF) was up-regulated. Up-regulation of MITF induces the expression of melanogenesis-related markers, such as tyrosinase, tyrosinase-related protein (TRP)-1, TRP-2. In conclusion, the present study showed that the exposure to ELF-EMFs at low intensities can stimulate melanogenesis in melanocyte, and these results may be used to a therapeutic devices for inducing repigmentation in vitiligo patients.
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Affiliation(s)
- Sang-Eun Cho
- Department of Medical Biotechnology (BK21 Plus Team), Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang, 10326 Korea
| | - Yu-Mi Kim
- Department of Medical Biotechnology (BK21 Plus Team), Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang, 10326 Korea
| | | | - Soo-Chan Kim
- Graduate School of Bio and Information Technology, Hankyong National University, Anseong, Korea
| | - Jung-Keug Park
- Department of Medical Biotechnology (BK21 Plus Team), Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang, 10326 Korea
| | - Young-Kwon Seo
- Department of Medical Biotechnology (BK21 Plus Team), Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang, 10326 Korea
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26
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Jiang L, Zhao X, Fei Y, Yu D, Qian J, Tong J, Chen G, He S. The effects of magnetic fields exposure on relative permittivity of saline solutions measured by a high resolution SPR system. Sci Rep 2016; 6:25111. [PMID: 27121618 PMCID: PMC4848526 DOI: 10.1038/srep25111] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 04/11/2016] [Indexed: 11/09/2022] Open
Abstract
A measurement system for the relative permittivity of a physiological solution under 50 Hz magnetic fields (MF) is presented. It is based on a phase-sensitive surface plasmon resonance (SPR) system. Relative permittivity was analyzed for different solute concentrations of sodium chloride under various MF exposure parameters. We found that MF exposure at 0.2-4.0 mT step-wise decreased significantly the SPR phase signal of a 0.9% sodium chloride solution while 0.1 mT of MF exposure did not. The decreases in the SPR phase signal depended on the duration of MF exposure, and the signal reached a plateau after 15 min of exposure. Interestingly, the decreased SPR phase signal showed a gradual increase and approached the background level when the exposure was drawn off. In addition, we found that the response of the sodium chloride solution to MF also depended on its concentration. In brief, the relative permittivity of sodium chloride in solutions appears to be practically affected by 50 Hz MF exposure. Our data indicates that the relative permittivity of the saline solution influenced by MF exposure should be considered when investigating the biological effects of MF exposure on organisms in experimental study.
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Affiliation(s)
- Li Jiang
- State Key Laboratory of Modern Optical Instrumentation (Zhejiang University), Centre for Optical and Electromagnetics Research, Zhejiang Provincial Key Laboratory for Sensing Technologies, JORCEP (Sino-Swedish Joint Research Center of Photonics), Zhejiang University, Hangzhou 310058, China
| | - Xinyuan Zhao
- Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Yue Fei
- Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Dongdong Yu
- Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jun Qian
- State Key Laboratory of Modern Optical Instrumentation (Zhejiang University), Centre for Optical and Electromagnetics Research, Zhejiang Provincial Key Laboratory for Sensing Technologies, JORCEP (Sino-Swedish Joint Research Center of Photonics), Zhejiang University, Hangzhou 310058, China
| | - Jinguang Tong
- State Key Laboratory of Modern Optical Instrumentation (Zhejiang University), Centre for Optical and Electromagnetics Research, Zhejiang Provincial Key Laboratory for Sensing Technologies, JORCEP (Sino-Swedish Joint Research Center of Photonics), Zhejiang University, Hangzhou 310058, China
| | - Guangdi Chen
- Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Sailing He
- State Key Laboratory of Modern Optical Instrumentation (Zhejiang University), Centre for Optical and Electromagnetics Research, Zhejiang Provincial Key Laboratory for Sensing Technologies, JORCEP (Sino-Swedish Joint Research Center of Photonics), Zhejiang University, Hangzhou 310058, China
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27
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Maes A, Anthonissen R, Wambacq S, Simons K, Verschaeve L. The Cytome Assay as a Tool to Investigate the Possible Association Between Exposure to Extremely Low Frequency Magnetic Fields and an Increased Risk for Alzheimer’s Disease. J Alzheimers Dis 2016; 50:741-9. [DOI: 10.3233/jad-150669] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Annemarie Maes
- Scientific Institute of Public Health (WIV-ISP), Toxicology Unit, Brussels, Belgium
| | - Roel Anthonissen
- Scientific Institute of Public Health (WIV-ISP), Toxicology Unit, Brussels, Belgium
| | - Sheleen Wambacq
- Scientific Institute of Public Health (WIV-ISP), Toxicology Unit, Brussels, Belgium
- Faculty of Pharmacy, Free University of Brussels, Brussels, Belgium
| | - Koen Simons
- Scientific Institute of Public Health (WIV-ISP), Health and Environment Unit, Brussels, Belgium
| | - Luc Verschaeve
- Scientific Institute of Public Health (WIV-ISP), Toxicology Unit, Brussels, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
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