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He D, Qian L, Chen X, He B, Li J. Durable cellulose paper by grafting thiol groups and controlling silver deposition for ultrahigh electromagnetic interference shielding. Int J Biol Macromol 2023; 248:125972. [PMID: 37499713 DOI: 10.1016/j.ijbiomac.2023.125972] [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: 06/09/2023] [Revised: 07/20/2023] [Accepted: 07/22/2023] [Indexed: 07/29/2023]
Abstract
Electromagnetic interference (EMI) shielding paper with durability and high effectiveness is of significant importance to long-term service for preventing EMI pollution. Herein, we report a practical method for preparing cellulose paper/Ag composite with outstanding durable and ultrahigh EMI shielding performance by electroless silver plating. The silver deposition process, the surface morphology, the silver content and conductivity of the composite can be controlled by varying the amount of N-acetyl-L-cysteine (NAC) grafted onto the cellulose fibers and ammonia amount for silver-ammonia complex formation. Moreover, the grafted NAC with thiol groups on cellulose can enhance the adhesion between silver and cellulose paper, meanwhile, NAC as the reducing agent can result in a more complete flower-shaped silver structure and reducing the reflection of electromagnetic waves in silver layer. The composite exhibited excellent conductivity, EMI shielding effectiveness (SE) up to 106 dB and outstanding durability. After 10,000 bending times and 60 abrasion cycles respectively, the electrical resistance of the composite only increased from 0.030 Ω/sq. to 0.041 Ω/sq. and 0.050 Ω/sq., and the EMI SE decreased to 102 dB and 105 dB.
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Affiliation(s)
- Duoduo He
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Liying Qian
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Xingyu Chen
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Beihai He
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Junrong Li
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China.
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Savchenko L, Martinelli I, Marsal D, Batkivska O, Zhdan V, Kaidashev I, Pizzinat N, Boal F, Tronchere H, Tao J, Kunduzova O. Metabolic, Apoptotic and Fibro-Inflammatory Profiles of the Heart Exposed to Environmental Electromagnetic Fields. Int J Mol Sci 2023; 24:11709. [PMID: 37511465 PMCID: PMC10380359 DOI: 10.3390/ijms241411709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/10/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Environmental stress can disturb the integrative functioning of the cardiovascular system and trigger a number of adaptive and/or maladaptive cell responses. Concomitant with the expanding use of mobile communication systems, public exposure to electromagnetic fields (EMFs) raises the question of the impact of 900 MHz EMFs on cardiovascular health. Therefore, in this study, we experimentally investigated whether 915 MHz EMF exposure influenced cardiac metabolic, antioxidant, apoptotic, and fibro-inflammatory profiles in a mouse model. Healthy mice were sham-exposed or exposed to EMF for 14 days. Western blot analysis using whole cardiac tissue lysates demonstrated that there was no significant change in the expression of oxidative phosphorylation (OXPHOS) complexes between the control and EMF-exposed mice. In addition, the myocardial expression of fibro-inflammatory cytokines, antioxidant enzymes, and apoptosis-related markers remained unchanged in the EMF-challenged hearts. Finally, the structural integrity of the cardiac tissues was preserved among the groups. These findings suggest that the apoptotic, antioxidant, metabolic, and fibro-inflammatory profiles of the heart remained stable under conditions of EMF exposure in the analyzed mice.
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Affiliation(s)
- Lesia Savchenko
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France
- University Toulouse III, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
- Poltava State Medical University, 23 Shevchenko, 36000 Poltava, Ukraine
| | - Ilenia Martinelli
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France
- University Toulouse III, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Dimitri Marsal
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France
- University Toulouse III, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Oksana Batkivska
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France
- Department of Functional and Laboratory Diagnostics, I. Horbachevsky Ternopil National Medical University, 1 Maidan Voli, 46001 Ternopil, Ukraine
| | - Vyacheslav Zhdan
- Poltava State Medical University, 23 Shevchenko, 36000 Poltava, Ukraine
| | - Igor Kaidashev
- Poltava State Medical University, 23 Shevchenko, 36000 Poltava, Ukraine
| | - Nathalie Pizzinat
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France
- University Toulouse III, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Frederic Boal
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France
- University Toulouse III, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Helene Tronchere
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France
- University Toulouse III, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Junwu Tao
- University Toulouse III, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
- LAPLACE, INP-ENSEEIHT, 2 Rue Camichel, 31071 Toulouse, France
| | - Oksana Kunduzova
- National Institute of Health and Medical Research (INSERM) U1297, CEDEX 4, 31432 Toulouse, France
- University Toulouse III, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
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Mansourian M, Marateb H, Nouri R, Mansourian M. Effects of man-made electromagnetic fields on heart rate variability parameters of general public: a systematic review and meta-analysis of experimental studies. REVIEWS ON ENVIRONMENTAL HEALTH 2023:reveh-2022-0191. [PMID: 37195230 DOI: 10.1515/reveh-2022-0191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 04/17/2023] [Indexed: 05/18/2023]
Abstract
OBJECTIVES The effects of man-made electromagnetic fields (EMFs) on the cardiovascular system have been investigated in many studies. In this regard, the cardiac autonomic nervous system (ANS) activity due to EMFs exposure, assessed by heart rate variability (HRV), was targeted in some studies. The studies investigating the relationship between EMFs and HRV have yielded conflicting results. We performed a systematic review and meta-analysis to assess the data's consistency and identify the association between EMFs and HRV measures. CONTENT Published literature from four electronic databases, including Web of Science, PubMed, Scopus, Embase, and Cochrane, were retrieved and screened. Initially, 1601 articles were retrieved. After the screening, 15 original studies were eligible to be included in the meta-analysis. The studies evaluated the association between EMFs and SDNN (standard deviation of NN intervals), SDANN (Standard deviation of the average NN intervals for each 5 min segment of a 24 h HRV recording), and PNN50 (percentage of successive RR intervals that differ by more than 50 ms). SUMMARY There was a decrease in SDNN (ES=-0.227 [-0.389, -0.065], p=0.006), SDANN (ES=-0.526 [-1.001, -0.05], p=0.03) and PNN50 (ES=-0.287 [-0.549, -0.024]). However, there was no significant difference in LF (ES=0.061 (-0.267, 0.39), p=0.714) and HF (ES=-0.134 (0.581, 0.312), p=0.556). In addition, a significant difference was not observed in LF/HF (ES=0.079 (-0.191, 0.348), p=0.566). OUTLOOK Our meta-analysis suggests that exposure to the environmental artificial EMFs could significantly correlate with SDNN, SDANN, and PNN50 indices. Therefore, lifestyle modification is essential in using the devices that emit EMs, such as cell phones, to decrease some signs and symptoms due to EMFs' effect on HRV.
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Affiliation(s)
- Mahsa Mansourian
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamidreza Marateb
- Biomedical Engineering Department, Faculty of Engineering, University of Isfahan, Isfahan, Iran
| | - Rasool Nouri
- Department of Medical Library and Information Sciences, School of Health Management and Medical Information, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marjan Mansourian
- Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
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Williams CF, Hather C, Conteh JS, Zhang J, Popa RG, Owen AW, Jonas CL, Choi H, Daniel RM, Lloyd D, Porch A, George CH. Non-thermal disruption of β-adrenergic receptor-activated Ca 2+ signalling and apoptosis in human ES-derived cardiomyocytes by microwave electric fields at 2.4 GHz. Biochem Biophys Res Commun 2023; 661:89-98. [PMID: 37087803 DOI: 10.1016/j.bbrc.2023.04.038] [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: 03/30/2023] [Accepted: 04/15/2023] [Indexed: 04/25/2023]
Abstract
The ubiquity of wireless electronic-device connectivity has seen microwaves emerge as one of the fastest growing forms of electromagnetic exposure. A growing evidence-base refutes the claim that wireless technologies pose no risk to human health at current safety levels designed to limit thermal (heating) effects. The potential impact of non-thermal effects of microwave exposure, especially in electrically-excitable tissues (e.g., heart), remains controversial. We exposed human embryonic stem-cell derived cardiomyocytes (CM), under baseline and beta-adrenergic receptor (β-AR)-stimulated conditions, to microwaves at 2.4 GHz, a frequency used extensively in wireless communication (e.g., 4G, Bluetooth™ and WiFi). To control for any effect of sample heating, experiments were done in CM subjected to matched rates of direct heating or CM maintained at 37 °C. Detailed profiling of the temporal and amplitude features of Ca2+ signalling in CM under these experimental conditions was reconciled with the extent and spatial clustering of apoptosis. The data show that exposure of CM to 2.4 GHz EMF eliminated the normal Ca2+ signalling response to β-AR stimulation and provoked spatially-clustered apoptosis. This is first evidence that non-thermal effects of 2.4 GHz microwaves might have profound effects on human CM function, responsiveness to activation, and survival.
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Affiliation(s)
- Catrin F Williams
- School of Engineering, Cardiff University, Wales, UK; School of Biosciences, Cardiff University, Wales, UK
| | | | | | | | | | | | | | - Heungjae Choi
- School of Engineering, Cardiff University, Wales, UK
| | | | - David Lloyd
- School of Engineering, Cardiff University, Wales, UK; School of Biosciences, Cardiff University, Wales, UK
| | - Adrian Porch
- School of Engineering, Cardiff University, Wales, UK.
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Pongmuksuwan P, Salayong K, Lertwiriyaprapa T, Kitisatorn W. Electromagnetic Absorption and Mechanical Properties of Natural Rubber Composites Based on Conductive Carbon Black and Fe 3O 4. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15196532. [PMID: 36233900 PMCID: PMC9571088 DOI: 10.3390/ma15196532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/11/2022] [Accepted: 09/13/2022] [Indexed: 05/27/2023]
Abstract
In contemporary civilization, the electromagnetic radiation from electronic devices and communication systems has become a substantial pollutant. High-performance electromagnetic absorbers have become a solution for absorbing unwanted electromagnetic waves. This research proposed a lightweight and flexible electromagnetic absorber produced from natural rubber filled with conductive carbon black (CCB) and Fe3O4. The effect of CCB, Fe3O4, and a combination of CCB and Fe3O4 as a hybrid filler on foam morpholog, electromagnetic reflectivity, tensile strength, and compression set properties were investigated. In addition, the effect of the alternating layered structure of CCB and Fe3O4 on electromagnetic absorption was investigated. The results indicated that the composite foam exhibited an interconnected network structure that enhanced the electromagnetic attenuation in the absorber. CCB increased the electromagnetic absorption of the foam, whereas Fe3O4 had less of an effect. The foam filled with the hybrid filler at the CCB/Fe3O4 ratio of 8/2 exhibited excellent electromagnetic absorption. The composite foam had a higher tensile modulus and higher strength compared to neat foam. The addition of CCB decreased the compression set; however, the compression set was improved by the incorporation of Fe3O4. Composite foams filled with hybrid filler can serve as highly efficient electromagnetic absorbing materials.
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Affiliation(s)
- Pornlada Pongmuksuwan
- Department of Materials and Production Technology Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, 1518, Pracharat 1 Road, Wongsawang, Bangsue, Bangkok 10800, Thailand
| | - Kiadtisak Salayong
- Research Center of Innovation Digital and Electromagnetic Technology (iDEMT), Department of Teacher Training in Electrical Engineering, Faculty of Technical Education, King Mongkut’s University of Technology North Bangkok, 1518, Pracharat 1 Road, Wongsawang, Bangsue, Bangkok 10800, Thailand
| | - Titipong Lertwiriyaprapa
- Research Center of Innovation Digital and Electromagnetic Technology (iDEMT), Department of Teacher Training in Electrical Engineering, Faculty of Technical Education, King Mongkut’s University of Technology North Bangkok, 1518, Pracharat 1 Road, Wongsawang, Bangsue, Bangkok 10800, Thailand
| | - Wanlop Kitisatorn
- Department of Materials and Production Technology Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, 1518, Pracharat 1 Road, Wongsawang, Bangsue, Bangkok 10800, Thailand
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Li D, Xu X, Gao Y, Wang J, Yin Y, Yao B, Zhao L, Wang H, Wang H, Dong J, Zhang J, Peng R. Hsp72-Based Effect and Mechanism of Microwave Radiation-Induced Cardiac Injury in Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7145415. [PMID: 36035207 PMCID: PMC9410832 DOI: 10.1155/2022/7145415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/08/2022] [Accepted: 07/19/2022] [Indexed: 11/18/2022]
Abstract
The purpose of this study was to determine the role of heat shock protein 72 (Hsp72) changes in cardiac injury caused by microwave radiation, aimed at providing novel insights into the mechanism of this damage. A digital thermometer was used to measure the rectal temperature of the rats' pre- and post-radiation. On the 1st, 7th, 14th, and 28th days post-radiation, the changes in electrocardiogram (ECG) were analyzed by a multi-channel physiological recorder. The myocardial enzyme activities and ion concentrations were detected by an automatic biochemical analyzer. Additionally, the levels of myocardial injury markers were established by the enzyme-linked immunosorbent assay (ELISA), and those of hormones were measured by radioimmunoassay. The structure and ultrastructure of the myocardial tissue were observed using an optical microscope and transmission electron microscopy (TEM). The expression of Hsp72 was measured by Western blot and immunofluorescence analyses. Post-exposure, the rectal temperature in the R-group increased significantly, ECG was disordered, and the concentrations of ions were decreased. Furthermore, the activities of myocardial enzymes were changed, and the contents of myocardial injury markers and hormones were increased. We observed damage to the structure and ultrastructure and significantly increased expression of Hsp72. As a whole, the results indicated that S-wave microwave radiation at 30 mW/cm2 for 35 min resulted in damage to the cardiac functionality organigram, caused by a combination of the thermal and nonthermal effects.
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Affiliation(s)
- Dayan Li
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Xinping Xu
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Yabing Gao
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Juan Wang
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Yue Yin
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Binwei Yao
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Li Zhao
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Haoyu Wang
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Hui Wang
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Ji Dong
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Jing Zhang
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Ruiyun Peng
- Beijing Institute of Radiation Medicine, Beijing, China
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Hamid HA, Ramasamy R, Mustafa MK, Hosseinpour Sarmadi V, Miskon A. Magnetic exposure using Samarium Cobalt (SmC O5) increased proliferation and stemness of human Umbilical Cord Mesenchymal Stem Cells (hUC-MSCs). Sci Rep 2022; 12:8904. [PMID: 35618759 PMCID: PMC9135697 DOI: 10.1038/s41598-022-12653-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 05/11/2022] [Indexed: 12/12/2022] Open
Abstract
Despite the extensive reports on the potential hazard of magnetic field (MF) exposures on humans, there are also concurrently reported on the improved proliferative property of stem cells at optimum exposure. However, the effect on mesenchymal stem cells (MSCs) remains unknown. Therefore, we aimed to investigate the impact of induced static MF (SMF) on human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) using Samarium Cobalt (SmCO5). At passage 3, hUC-MSCs (1 × 104) were exposed to 21.6 mT SMF by a direct exposure (DE) showed a significantly higher cell count (p < 0.05) in the growth kinetics assays with the shortest population doubling time relative to indirect exposure and negative control. The DE group was committed into the cell cycle with increased S phase (55.18 ± 1.38%) and G2/M phase (21.75 ± 1.38%) relative to the NC group [S-phase (13.54 ± 2.73%); G2/M phase (8.36 ± 0.28%)]. Although no significant changes were observed in the immunophenotype, the DE group showed an elevated expression of pluripotency-associated markers (OCT4, SOX2, NANOG, and REX1). These results suggest that the MFs could potentially induce proliferation of MSCs, a promising approach to promote stem cells propagation for clinical therapy and research without compromising the stemness of hUC-MSCs.
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Affiliation(s)
- Haslinda Abdul Hamid
- Bio Artificial Organ and Regenerative Medicine Unit, National Defense University of Malaysia, Sungai Besi Camp, 57000, Kuala Lumpur, Malaysia
| | - Rajesh Ramasamy
- Stem Cell & Immunity Research Group, Immunology Laboratory, Department of Pathology, Faculty of Medicine and Health Sciences, University Putra Malaysia, 43400, Serdang, Malaysia.,Department of Dental Radiology, Faculty of Dental Medicine, Airlangga University, Surabaya, 60132, Indonesia
| | - Mohd Kamarulzaki Mustafa
- Department of Physics, Faculty of Applied Sciences and Technology, University Tun Hussein Onn Malaysia, Pagoh Campus, KM1, Jalan Panchor, Hub Pendidikan Tinggi Pagoh, 84600, Muar, Johor, Malaysia
| | - Vahid Hosseinpour Sarmadi
- Institutes of Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Azizi Miskon
- Bio Artificial Organ and Regenerative Medicine Unit, National Defense University of Malaysia, Sungai Besi Camp, 57000, Kuala Lumpur, Malaysia.
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Miao Z, Chen X, Zhou H, Liu P, Fu S, Yang J, Gao Y, Ren Y, Rong D. Interfacing MXene Flakes on a Magnetic Fiber Network as a Stretchable, Flexible, Electromagnetic Shielding Fabric. NANOMATERIALS 2021; 12:nano12010020. [PMID: 35009970 PMCID: PMC8746703 DOI: 10.3390/nano12010020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 12/31/2022]
Abstract
A unique self-standing membrane composed of hierarchical thermoplastic polyurethane (TPU)/polyacrylonitrile (PAN) fibers is prepared by the electrospinning technique, followed by a simple dip-coating process. Fe3O4 nanoparticles are uniformly anchored on TPU/PAN fibers during the electrospinning process, enabling the membrane to achieve effective electromagnetic interference shielding (EMI SE) performance. Such a hybrid membrane has a high magnetization of 18.9 emu/g. When MXene (Ti3C2Tx) layers are further loaded on the TPU/PAN/Fe3O4NPs hybrid membrane, its EMI SE performance in the X band can exceed 30 dB due to the hydrogen bonds generated between the macromolecular chain of PAN and the functional group (Tx) on the surface of MXene. Simultaneously, the interfacial attraction between MXene and the TPU/PAN/Fe3O4NPs substrate is enhanced. The EMI SE mechanism of the hybrid membrane indicates that this film has great potential in the fields of wearable devices and flexible materials.
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Reis FCD, Rezende MC, Ribeiro B. The influence of the transparent layer thickness on the absorption capacity of epoxy/carbon nanotube buckypaper at
X‐band. J Appl Polym Sci 2021. [DOI: 10.1002/app.51407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Felipe Carlos dos Reis
- Instituto de Ciência e Tecnologia Universidade Federal de São Paulo (UNIFESP) São José dos Campos Brazil
| | - Mirabel Cerqueira Rezende
- Instituto de Ciência e Tecnologia Universidade Federal de São Paulo (UNIFESP) São José dos Campos Brazil
| | - Bruno Ribeiro
- Instituto de Ciência e Tecnologia Universidade Federal de São Paulo (UNIFESP) São José dos Campos Brazil
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Sieroń K, Knapik K, Onik G, Romuk E, Birkner E, Kwiatek S, Sieroń A. Electromagnetic Fields Modify Redox Balance in the Rat Gastrointestinal Tract. Front Public Health 2021; 9:710484. [PMID: 34589462 PMCID: PMC8473753 DOI: 10.3389/fpubh.2021.710484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 08/09/2021] [Indexed: 11/26/2022] Open
Abstract
Objective: The aim of the study was to assess the influence of electromagnetic fields with divergent physical properties on the prooxidative and antioxidative balances in homogenates of the tongue, salivary glands, esophagus, stomach, and small and large intestines of rats. Material and Methods: Forty rats were randomly divided into four equal groups, namely, a control group, a group exposed to low-frequency electromagnetic fields (LF-EMFs; frequency: 50 Hz; intensity: 10 kV/m; magnetic induction: 4.3 pT), a group exposed to radiofrequency electromagnetic fields (RF-EMFs) emitted by mobile phones (frequency: 900 MHz), and a group exposed simultaneously to LF-EMFs and RF-EMFs emitted by mobile phones. After 28 consecutive days of the experiment, the following pro- and antioxidative markers were assessed in the gastrointestinal tract homogenates: superoxide dismutase (SOD) and its two isoenzymes (Mn-SOD, Cu,Zn-SOD) catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), glutathione S-transferase (GST), total antioxidative capacity (TAC), total oxidative status (TOS), and malondialdehyde (MDA). Results: In rats exposed to LF-EMFs, higher concentrations of the markers of prooxidant processes, MDA or TOS, were observed in the salivary glands, esophagus, and small intestine homogenates in comparison with the control group. Additionally, in the group of rats opposite to the control, antioxidant activity was observed. The main differences included a higher activity of Cu,Zn-SOD in homogenates of the tongue, salivary glands, and esophagus as well as decreased activity of CAT in homogenates of the tongue, esophagus, and small intestine. In animals exposed to RF-EMFs, the concentration of TOS was higher in the large intestine than in control rats. The main difference of antioxidant activity was presented by decreased Cu,Zn-SOD in homogenates of the salivary glands, stomach, small and large intestine as well as CAT in homogenates of the tongue, esophagus, stomach, and small and large intestine. Moreover, in rats exposed simultaneously to LF-EMFs and RF-EMFs, a lower concentration of TOS was observed. Antioxidant activity was presented by a decreased activity of CAT in homogenates of the tongue, esophagus, stomach, and small and large intestine in comparison to the control group. Conclusion: Among those applied in the study, electromagnetic fields of a low-frequency caused the most significant disturbances of oxidative stress in the rat gastrointestinal tract.
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Affiliation(s)
- Karolina Sieroń
- Chair of Physiotherapy, Department of Physical Medicine, School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Katarzyna Knapik
- Chair of Physiotherapy, Department of Physical Medicine, School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Grzegorz Onik
- Chair of Physiotherapy, Department of Physical Medicine, School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Ewa Romuk
- Department of Biochemistry, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Katowice, Poland
| | - Ewa Birkner
- Department of Biochemistry, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Katowice, Poland
| | - Sebastian Kwiatek
- Division of Internal Diseases Oncology, Gastroenterology, Angiology, Department of Cardiology Intensive Care, Hospital of the Ministry of the Interior and Administration in Katowice, Katowice, Poland
| | - Aleksander Sieroń
- Department of Physiotherapy, Jan Dlugosz University in Czestochowa, Czestochowa, Poland
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Drobakhin OO, Magro VI, Kosharnyi VV, Rutgaizer VH, Abdul-Ohly LV. The influence of microwave electromagnetic radiation on rat heart morphogenesis during thyroidectomy. REGULATORY MECHANISMS IN BIOSYSTEMS 2021. [DOI: 10.15421/022121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
It is known that electromagnetic radiation affects the functional systems of living beings, in particular, the endocrine and cardiovascular systems and directly the heart cells and their functioning. In this case, the influence of electromagnetic radiation significantly affects the properties of the cardiovascular system and changes physiological processes in it. Moreover, sensitivity to signals is higher for biosystems with a higher level of organization. The method of simulating hypothyroidism for rats makes it possible to develop an experimental model for analyzing morphogenetic changes in the rat heart. Under conditions of hypothyroidism modeling, destructive changes in muscle fibers are observed in the myocardium after thyroidectomy, but after microwave irradiation with an exposure of 45 minutes, a regenerative-compensatory reconstruction of the structural components of the myocardium of the heart wall occurs. After thyroidectomy and microwave irradiation with an exposure of 120 minutes, an increase in degenerative and destructive processes in the heart myocardium was observed. For the first time, a comparative ultramicroscopic study using electron microscopy was carried out. It showed that after electromagnetic irradiation with an exposure of 45 minutes, the general structure of the mitochondrial apparatus does not change. Irradiation with an exposure of 120 minutes causes the destruction of subsarcolemal and paranuclear organelles, edema and degradation of intermyofibrillar mitochondria. After exposure to electromagnetic radiation with the exposure of 45 minutes in a hypothyroid state, a compensatory restructuring of the energy apparatus of the contractile cardiomyocytes of the left ventricle occurs due to the formation of mitochondria and an increase in their contact interaction. After exposure to radiation for 120 minutes, the development of destructive-degenerative processes in the mitochondrial apparatus of left ventricular cardiomyocytes, deepening of damage to intermitochondrial contacts was observed. The most significant increase in the relative volume of the endothelium in the areas of the rat heart myocardium was observed for the case of microwave irradiation only (without experimental hypothyroidism) with exposure duration of 45 minutes. Immunohistochemical study both for the case of microwave irradiation only and for the case of microwave irradiation under conditions of experimental hypothyroidism allows us to conclude that morphogenetic transformations are highly active in the myocardium of the heart when the duration of exposure is 45 minutes. This study will make it possible to develop recommendations for persons with thyroid diseases on the duration of daily exposure of staying in electromagnetic field emitted by devices with characteristics similar to the case under study.
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Hasan I, Amin T, Alam MR, Islam MR. Hematobiochemical and histopathological alterations of kidney and testis due to exposure of 4G cell phone radiation in mice. Saudi J Biol Sci 2021; 28:2933-2942. [PMID: 34012329 PMCID: PMC8117002 DOI: 10.1016/j.sjbs.2021.02.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/06/2021] [Accepted: 02/07/2021] [Indexed: 11/17/2022] Open
Abstract
The radiofrequency electromagnetic radiation emitted by smart phones on biological systems has wide media coverage and public concern in recent years. The aim of this study was to explore the effects of fourth-generation cell phone radiation exposure on hematological (Total leukocyte count, Total erythrocyte count, and hemoglobin %), biochemical (Serum creatinine) parameters, and histopathological changes in the kidney and testis of Swiss albino mice. A total of 30 male Swiss albino mice weighing 45–65 g was randomly divided into three groups (n = 10). The first group A was the control group, the second group B, was exposed to 40 minutes of mobile phone radiation daily, the third group C was exposed to 60 minutes of radiation daily from two 2400 Megahertz fourth-generation connected mobile phones for 60 days, respectively. The electromagnetic radiation frequency radiometer measured the frequency of electromagnetic radiation emitted from cell phones. The specific absorption rate was calculated as 0.087 W/kg. The control group was kept under similar conditions, but the electromagnetic field was not given for the same period. All the mice were sacrificed at the end of the experiment. The blood samples were collected for hematobiochemical study, and then kidney and testis tissues were collected for histopathological study. Results of the study showed that the body weight and total erythrocyte count values were significantly (p < 0.05) decreased while total leukocyte count, hemoglobin %, and serum creatinine values were significantly (p < 0.05) increased in both the radiation exposure groups relative to the control group. Histopathological observation showed the kidney of 60 minutes exposed mice interstitial inflammation that causes marked mononuclear cellular infiltration compared to the 40 minutes and control mice. Compared to control mice, histopathological examinations of testicular tissue from the exposed mice, showed irregular in shapes and non-uniform sizes and fewer spermatogenic cells layer that leads to the larger lumen in the seminiferous tubules. It is concluded that fourth-generation cell phone radiation exposure may affect blood hemostasis and inflammation of mice's kidney and testis tissue. Based on these studies, it is important to increase public consciousness of potential adverse effects of mobile phone radiofrequency electromagnetic radiation exposure.
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Affiliation(s)
- Imam Hasan
- Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Tanjina Amin
- Department of Anatomy and Histology, Faculty of Veterinary Medicine & Animal Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Md Rafiqul Alam
- Department of Surgery and Obstetrics, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
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AYDIN F, AKŞİT E, HÜSEYİNOĞLU AYDIN A, TURGAY YILDIRIM Ö. The Effects of Heart-to-Mobile Phone Distance on the Circulatory System. KONURALP TIP DERGISI 2021. [DOI: 10.18521/ktd.835364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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14
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Kruželák J, Kvasničáková A, Hložeková K, Hudec I. Progress in polymers and polymer composites used as efficient materials for EMI shielding. NANOSCALE ADVANCES 2021; 3:123-172. [PMID: 36131869 PMCID: PMC9417728 DOI: 10.1039/d0na00760a] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/07/2020] [Indexed: 05/04/2023]
Abstract
The explosive progress of electronic devices and communication systems results in the production of undesirable electromagnetic pollution, known as electromagnetic interference. The accumulation of electromagnetic radiation in space results in the malfunction of commercial and military electronic appliances, and it may have a negative impact on human health. Thus, the shielding of undesirable electromagnetic interference has become a serious concern of the modern society, and has been a very perspective field of research and development. This paper provides detailed insight into current trends in the advancement of various polymer-based materials with the effects of electromagnetic interference shielding. First, the theoretical aspects of shielding are outlined. Then, the comprehensive description of the structure, morphology and functionalization of the intrinsic conductive polymers, polymers filled with the different types of inorganic and organic fillers, as well as multifunctional polymer architectures are provided with respect to their conductive, dielectric, magnetic and shielding characteristics.
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Affiliation(s)
- Ján Kruželák
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology, Slovak University of Technology Radlinského 9 812 37 Bratislava Slovakia +421 02 5932589
| | - Andrea Kvasničáková
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology, Slovak University of Technology Radlinského 9 812 37 Bratislava Slovakia +421 02 5932589
| | - Klaudia Hložeková
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology, Slovak University of Technology Radlinského 9 812 37 Bratislava Slovakia +421 02 5932589
| | - Ivan Hudec
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology, Slovak University of Technology Radlinského 9 812 37 Bratislava Slovakia +421 02 5932589
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15
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Kruželák J, Kvasničáková A, Plavec R, Ušák E, Ušáková M, Dosoudil R, Hudec I. Low frequency electromagnetic shielding efficiency of composites based on ethylene propylene diene monomer
and
multi‐walled carbon nanotubes. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ján Kruželák
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology Slovak University of Technology in Bratislava Bratislava Slovakia
| | - Andrea Kvasničáková
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology Slovak University of Technology in Bratislava Bratislava Slovakia
| | - Roderik Plavec
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology Slovak University of Technology in Bratislava Bratislava Slovakia
| | - Elemír Ušák
- Department of Electromagnetic Theory, Faculty of Electrical Engineering and Information Technology Slovak University of Technology in Bratislava Bratislava Slovakia
| | - Mariana Ušáková
- Department of Electromagnetic Theory, Faculty of Electrical Engineering and Information Technology Slovak University of Technology in Bratislava Bratislava Slovakia
| | - Rastislav Dosoudil
- Department of Electromagnetic Theory, Faculty of Electrical Engineering and Information Technology Slovak University of Technology in Bratislava Bratislava Slovakia
| | - Ivan Hudec
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology Slovak University of Technology in Bratislava Bratislava Slovakia
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Zendehdel R, Asadi S, Alizadeh S, Ranjbarian M. Quality assessment of DNA and hemoglobin by Fourier transform infrared spectroscopy in occupational exposure to extremely low-frequency magnetic field. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:45374-45380. [PMID: 32789635 DOI: 10.1007/s11356-020-09503-8] [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: 11/08/2019] [Accepted: 05/28/2020] [Indexed: 06/11/2023]
Abstract
Previous studies have shown the effect of extremely low-frequency (ELF) magnetic fields on the hematopoietic system. However, molecular modification and biological toxicity are not known yet. The aim of this study was to investigate the effect of occupational exposure to ELF magnetic field on the hemoglobin and DNA alteration using Fourier transform infrared (FTIR) spectroscopy. Twenty nine individuals were selected among those working as the controller in a powerhouse in order to be studied as the population exposed to ELF magnetic field. Control group comprised of 29 administrative employees voluntarily participated who were matched with the exposed subjects in terms of sex, age, work experiences, smoking habit, and socioeconomic status. DNA and hemoglobin were extracted from blood samples and then were studied by FTIR spectroscopy. The results showed the level of magnetic field exposure was between 0.38 to 50 μT in the exposed subjects while the level of magnetic field exposure was between 0.19 and 20 μT for the unexposed people. Hemoglobin level was equal to 15.67 ± 1.42 g/dL for exposed subjects which is significantly lower than that of the unexposed people (p = 0.0001). There was a significant alteration in CH content and COO structure of the hemoglobin structure. Moreover, DNA showed significant changes by functional group of organic base. This change in the structure of DNA and hemoglobin can lead to the creation of risks in human health. In conclusion, FTIR method could reveal the quality of DNA and hemoglobin structure in subjects after exposure to ELF magnetic field.
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Affiliation(s)
- Rezvan Zendehdel
- Department of Occupational Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Sareh Asadi
- Neuroscience Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Somayeh Alizadeh
- Department of Occupational Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran.
| | - Mouhammad Ranjbarian
- Department of Occupational Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
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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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18
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Kruželák J, Kvasničáková A, Ušák E, Ušáková M, Dosoudil R, Hudec I. Rubber magnets based on NBR and lithium ferrite with the ability to absorb electromagnetic radiation. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ján Kruželák
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food TechnologySlovak University of Technology in Bratislava Bratislava Slovakia
| | - Andrea Kvasničáková
- Department of Electromagnetic Theory, Faculty of Electrical Engineering and Information TechnologySlovak University of Technology in Bratislava Bratislava Slovakia
| | - Elemír Ušák
- Department of Electromagnetic Theory, Faculty of Electrical Engineering and Information TechnologySlovak University of Technology in Bratislava Bratislava Slovakia
| | - Mariana Ušáková
- Department of Electromagnetic Theory, Faculty of Electrical Engineering and Information TechnologySlovak University of Technology in Bratislava Bratislava Slovakia
| | - Rastislav Dosoudil
- Department of Electromagnetic Theory, Faculty of Electrical Engineering and Information TechnologySlovak University of Technology in Bratislava Bratislava Slovakia
| | - Ivan Hudec
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food TechnologySlovak University of Technology in Bratislava Bratislava Slovakia
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Han X, Gao Y, Qi W, Ding S, Zhang Y, Xu Q, Zhao Y, Song X, Zhao T, Zhou L, Ye L. Influencing factors of coexistence PreDM and PreHTN in occupational population of state grid corporation of Chinese. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2019; 75:365-370. [PMID: 31847721 DOI: 10.1080/19338244.2019.1703623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND Early intervention of coexisting prediabetes (PreDM) and prehypertension (PreHTN) has great significance for the prevention and treatment of cardiovascular diseases. Therefore, the influencing factors of the coexisting PreDM and PreHTN has been widely concerned by human beings. The State Grid Corporation occupational population as a special group, who are often exposed to a certain amount of voltage. Earlier studies have shown that exposure to a certain level of voltage can cause cardiovascular disease. The aim of the present study was to explore the risk factors of coexisting PreDM and PreHTN, and to provide theoretical basis for early intervention. METHODS A stratified random sampling method was used to randomly select Occupational population from the five power supply regions of China in 2012 for questionnaire surveys and clinical examinations. Respondents were divided into Normal blood glucose group, PreDM group, Diabetes group, Normal blood pressure group, PreHTN group, Hypertension group. RESULTS The prevalence of coexisting PreDM and PreHTN in the study population was 1.9%. The binary Logistic regression results showed that region, gender, age, BMI, triglyceride (TG), and low density lipoprotein cholesterol (LDL-C) were the effects of factor coexisting PreDM and PreHTN. CONCLUSION It is important to pay attention to the early stage of hypertension and diabetes, control the transition from PreHTN and PreDM to hypertension and diabetes, and improve the health of Power Supply Enterprise Population.
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Affiliation(s)
- Xu Han
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Yang Gao
- Jilin Province Electric Research Institute, State Gird
| | - Wen Qi
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Shuang Ding
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Yuezhu Zhang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Qi Xu
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Yaming Zhao
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Xinyue Song
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Tianyang Zhao
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Liting Zhou
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Lin Ye
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
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Ghazikhanlou-Sani K, Rahimi A, Poorkaveh M, Eynali S, Koosha F, Shoja M. Evaluation of the electromagnetic field intensity in operating rooms and estimation of occupational exposures of personnel. Interv Med Appl Sci 2019; 10:121-126. [PMID: 30713749 PMCID: PMC6343582 DOI: 10.1556/1646.10.2018.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Introduction Operating rooms in hospitals are facilitated with different types of electronic systems, which produce electromagnetic waves. High intensities of magnetic waves may have harmful effects on biological environments. This study aims to evaluate the electromagnetic field intensity at different parts of operating rooms at the first stage and estimate the occupational exposure to operating room personnel at the next phase. Materials and methods At this cross-sectional study, the magnetic field intensity was evaluated using teslameter at several parts of operating rooms, during operating procedures, while electrical instruments were working. Background electromagnetic field intensity was measured when all the electrical systems were idle. Statistical analysis was performed using SPSS software. The results were compared with ICNIRP standards. Results The maximum intensity of magnetic field was measured around high-voltage systems at the distance of 50 cm in the personnel’s standing area at DCR and PCNL operating procedures were 5.9 and 5.6, respectively. The number of on-mode electrical systems was inconsistent with the intensity of electromagnetic fields at the standing area of operating room personnel’s. The intensity of magnetic fields around high-voltage systems, which was about 46.75 mG at the distance of 10 cm, was the highest among measured electromagnetic fields. Conclusions The highest magnetic field intensity measured in this study was related to high-voltage systems and is lower than advised intensity by ICNIRP for occupational exposure. Based on this study, it can be concluded that there are no considerable risks of electromagnetic exposure for operating room personnels.
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Affiliation(s)
- Karim Ghazikhanlou-Sani
- Department of Radiology, Paramedical School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Azizollah Rahimi
- Faculty of Medicine, Department of Medical Physics, Ahvaz Judishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Poorkaveh
- Department of Radiology, Paramedical School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Samira Eynali
- Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Koosha
- Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Shoja
- Department of Radiology, School of Allied Medical Sciences, Semnan University of Medical Sciences, Semnan, Iran
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Abstract
PURPOSE OF REVIEW Global industrialization has increased population exposure to environmental toxins. A global decline in sperm quality over the last few decades raises questions about the adverse impact of environmental toxins on male reproductive health. RECENT FINDINGS Multiple animal- and human-based studies on exposure to environmental toxins suggest a negative impact on semen quality, in terms of sperm concentration, motility, and/or morphology. These toxins may exert estrogenic and/or anti-androgenic effects, which in turn alter the hypothalamic-pituitary-gonadal axis (HPGA), induce sperm DNA damage, or cause sperm epigenetic changes. This chapter will discuss the most recent literature about the most common environmental toxins and their impact on spermatogenesis and its consequences on male fertility. Understanding the presence and underlying mechanism of these toxins will help us preserve the integrity of the male reproduction system and formulate better regulations against their indiscriminate use.
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Affiliation(s)
- Mahmoud Mima
- University of Illinois at Chicago, 820 S. Wood St., Suite 515 CSN, Chicago, IL, 60612, USA
| | - David Greenwald
- University of Illinois at Chicago, 820 S. Wood St., Suite 515 CSN, Chicago, IL, 60612, USA
| | - Samuel Ohlander
- University of Illinois at Chicago, 820 S. Wood St., Suite 515 CSN, Chicago, IL, 60612, USA.
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De Luca C, Chung Sheun Thai J, Raskovic D, Cesareo E, Caccamo D, Trukhanov A, Korkina L. Metabolic and genetic screening of electromagnetic hypersensitive subjects as a feasible tool for diagnostics and intervention. Mediators Inflamm 2014; 2014:924184. [PMID: 24812443 PMCID: PMC4000647 DOI: 10.1155/2014/924184] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 02/26/2014] [Indexed: 12/15/2022] Open
Abstract
Growing numbers of "electromagnetic hypersensitive" (EHS) people worldwide self-report severely disabling, multiorgan, non-specific symptoms when exposed to low-dose electromagnetic radiations, often associated with symptoms of multiple chemical sensitivity (MCS) and/or other environmental "sensitivity-related illnesses" (SRI). This cluster of chronic inflammatory disorders still lacks validated pathogenetic mechanism, diagnostic biomarkers, and management guidelines. We hypothesized that SRI, not being merely psychogenic, may share organic determinants of impaired detoxification of common physic-chemical stressors. Based on our previous MCS studies, we tested a panel of 12 metabolic blood redox-related parameters and of selected drug-metabolizing-enzyme gene polymorphisms, on 153 EHS, 147 MCS, and 132 control Italians, confirming MCS altered (P < 0.05-0.0001) glutathione-(GSH), GSH-peroxidase/S-transferase, and catalase erythrocyte activities. We first described comparable-though milder-metabolic pro-oxidant/proinflammatory alterations in EHS with distinctively increased plasma coenzyme-Q10 oxidation ratio. Severe depletion of erythrocyte membrane polyunsaturated fatty acids with increased ω 6/ ω 3 ratio was confirmed in MCS, but not in EHS. We also identified significantly (P = 0.003) altered distribution-versus-control of the CYP2C19∗1/∗2 SNP variants in EHS, and a 9.7-fold increased risk (OR: 95% C.I. = 1.3-74.5) of developing EHS for the haplotype (null)GSTT1 + (null)GSTM1 variants. Altogether, results on MCS and EHS strengthen our proposal to adopt this blood metabolic/genetic biomarkers' panel as suitable diagnostic tool for SRI.
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Affiliation(s)
- Chiara De Luca
- Centre of Innovative Biotechnological Investigations (Cibi-Nanolab), Novoslobodskaya Street 36/1, Moscow 127055, Russia
- Active Longevity Clinic “Institut Krasoty na Arbate”, 8 Maly Nikolopeskovsky lane, Moscow 119002, Russia
| | - Jeffrey Chung Sheun Thai
- Natural Health Farm, 39 Jln Pengacara U1/48, Seksyen U1, Temasya Industrial Park, 40150 Shah Alam, Selangor, Malaysia
| | - Desanka Raskovic
- 2nd Dermatology Division, Dermatology Institute (IDI IRCCS), Via Monti di Creta 104, 00167 Rome, Italy
| | - Eleonora Cesareo
- 2nd Dermatology Division, Dermatology Institute (IDI IRCCS), Via Monti di Creta 104, 00167 Rome, Italy
| | - Daniela Caccamo
- Department of Biomedical Sciences and Morpho-Functional Imaging, Polyclinic University of Messina, 98125 Messina, Italy
| | - Arseny Trukhanov
- Active Longevity Clinic “Institut Krasoty na Arbate”, 8 Maly Nikolopeskovsky lane, Moscow 119002, Russia
| | - Liudmila Korkina
- Centre of Innovative Biotechnological Investigations (Cibi-Nanolab), Novoslobodskaya Street 36/1, Moscow 127055, Russia
- Active Longevity Clinic “Institut Krasoty na Arbate”, 8 Maly Nikolopeskovsky lane, Moscow 119002, Russia
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