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Li B, Zhang X, Qiao N, Chen J, Bi W, Zhi W, Ma L, Miao C, Wang L, Zou Y, Hu X. A real-time working memory evaluation system for macaques in microwave fields. Bioelectromagnetics 2024. [PMID: 39099158 DOI: 10.1002/bem.22519] [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: 12/29/2023] [Revised: 06/14/2024] [Accepted: 07/12/2024] [Indexed: 08/06/2024]
Abstract
With the development and widespread application of electromagnetic technology, the health hazards of electromagnetic radiation have attracted much attention and concern. The effect of electromagnetic radiation on the nervous system, especially on learning, memory, and cognitive functions, is an important research topic in the field of electromagnetic biological effects. Most previous studies were conducted with rodents, which are relatively mature. As research has progressed, studies using non-human primates as experimental subjects have been carried out. Compared to rodents, non-human primates such as macaques not only have brain structures more similar to those of humans but also exhibit learning and memory processes that are similar. In this paper, we present a behavioral test system for the real-time evaluation of the working memory (WM) of macaques in a microwave environment. The system consists of two parts: hardware and software. The hardware consists of four modules: the operation terminal, the control terminal, the optical signal transmission, and detection module and the reward feedback module. The software program can implement the feeding learning task, the button-pressing learning task, and the delayed match-to-sample task. The device is useful for the real-time evaluation of the WM of macaques in microwave environments, showing good electromagnetic compatibility, a simple and reliable structure, and easy operation.
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Affiliation(s)
- Bowen Li
- Beijing Institute of Radiation Medicine, Beijing, China
- College of Education, Hebei University, Baoding, China
| | - Xueyan Zhang
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing, China
| | - Nan Qiao
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Jiawei Chen
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Weijie Bi
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Weijia Zhi
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Lizhen Ma
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Congcong Miao
- Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing, China
| | - Lifeng Wang
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Yong Zou
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Xiangjun Hu
- Beijing Institute of Radiation Medicine, Beijing, China
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KUZAY D, SİRAV B, ÖZER Ç. Effects of RF and ELF Radiation on Oxidative Stress of Brain Tissue and Plasma of Diabetic Rats. KOCAELI ÜNIVERSITESI SAĞLIK BILIMLERI DERGISI 2023. [DOI: 10.30934/kusbed.784547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Objective: Exposure to Radio Frequency (RF) and Extremely Low Frequency (ELF) radiation is increasing steadily with the progress of technology and industrialization. The aim of this study was to investigate whether RF and ELF radiation are oxidative stress effects in the plasma and brain tissue of diabetic and non-diabetic rats.
Methods: Experiment groups were designed as follows; C (control), S (sham), ELF (ELF radiation exposure), RF (RF radiation exposure), ELF+RF (ELF and RF radiation exposure), D-C (Diabetic Control), D-S (Diabetic Sham), D-ELF (Diabetic ELF), D-RF (Diabetic RF), D-ELF+RF (Diabetic ELF+RF). The experimental diabetes model was induced with a single dose of 65mg/kg streptozotocin (STZ). 2100 MHz RF and 50 Hz ELF radiation groups exposed for 1 month. Total nitric oxide (NOx), malondialdehyde (MDA) and total sulfhydryl groups (RSH) / glutathione (GSH) levels were measured in plasma and brain tissue.
Results: RF + ELF radiation exposure caused an increase in NOx and MDA levels in plasma and brain tissue of diabetic and non-diabetic rats (p<0.05). Exposure to RF and RF + ELF radiation caused a decrease in plasma RSH / tissue GSH levels in non-diabetic rats (p<0.05).
Conclusion: The most prominent effect was seen in the diabetic group with RF + ELF radiation exposure.
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Affiliation(s)
- Dilek KUZAY
- AHI EVRAN UNIVERSITY, FACULTY OF MEDICINE, DEPARTMENT OF BASIC MEDICAL SCIENCES, DEPARTMENT OF PHYSIOLOGY
| | - Bahriye SİRAV
- GAZI UNIVERSITY, FACULTY OF MEDICINE, DEPARTMENT OF BASIC MEDICAL SCIENCES, DEPARTMENT OF BIOPHYSICS
| | - Çiğdem ÖZER
- GAZI UNIVERSITY, FACULTY OF MEDICINE, DEPARTMENT OF BASIC MEDICAL SCIENCES, DEPARTMENT OF PHYSIOLOGY
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Balmori A. Evidence for a health risk by RF on humans living around mobile phone base stations: From radiofrequency sickness to cancer. ENVIRONMENTAL RESEARCH 2022; 214:113851. [PMID: 35843283 DOI: 10.1016/j.envres.2022.113851] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/26/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
The objective of this work was to perform a complete review of the existing scientific literature to update the knowledge on the effects of base station antennas on humans. Studies performed in real urban conditions, with mobile phone base stations situated close to apartments, were selected. Overall results of this review show three types of effects by base station antennas on the health of people: radiofrequency sickness (RS), cancer (C) and changes in biochemical parameters (CBP). Considering all the studies reviewed globally (n = 38), 73.6% (28/38) showed effects: 73.9% (17/23) for radiofrequency sickness, 76.9% (10/13) for cancer and 75.0% (6/8) for changes in biochemical parameters. Furthermore, studies that did not meet the strict conditions to be included in this review provided important supplementary evidence. The existence of similar effects from studies by different sources (but with RF of similar characteristics), such as radar, radio and television antennas, wireless smart meters and laboratory studies, reinforce the conclusions of this review. Of special importance are the studies performed on animals or trees near base station antennas that cannot be aware of their proximity and to which psychosomatic effects can never be attributed.
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Affiliation(s)
- A Balmori
- C/ Rigoberto Cortejoso, 14 47014, Valladolid, Spain.
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Al-Khlaiwi T, Habib SS, Alshalan M, Al-Qhatani M, Alsowiegh S, Queid S, Alyabis O, Al-Khliwi H. Comparison of mobile phone usage and physical activity on glycemic status, body composition & lifestyle in male Saudi mobile phone users. Heliyon 2022; 8:e10646. [PMID: 36158074 PMCID: PMC9489969 DOI: 10.1016/j.heliyon.2022.e10646] [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] [Received: 09/14/2021] [Revised: 01/12/2022] [Accepted: 09/08/2022] [Indexed: 11/07/2022] Open
Abstract
Background &Objectives: This study aimed to compare the effects of mobile phone usage and physical activity on HbA1c, body composition, and lifestyle among male Saudi Arabian mobile phone users. Methods The study was conducted in the Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia from July 2020 to July 2021. The study sample consisted of 203 non-smoker male Saudi participants aged from 20 to 60 years who used mobile phones. Personal information was obtained through interviews using a proforma. The participants were divided into three groups according to their daily mobile phone usage: Group (1): less than 2 h, Group (2): 2–3 h, and Group (3): more than 3 h, and according to their physical activities: Group (1): sedentary, Group (2): average, and Group (3): athletes. Glycated Hemoglobin (HbA1c), Bioelectrical Impedance Analysis (BIA), and (SF) 36- items survey was performed. Results The mean age of 203 Saudi male adult participants was 28.0 ± 10.4 years. Mobile phone usage in the less than 2 h group was (33.5%), between 2-3 h (22.7%), and more than 3 h (43.8%) respectively. The mean age of Group (3), who used mobile phones for more than 3 h, was the lowest (23.9 ± 5.7). The results showed that HbA1C levels were almost equal in all three groups (5.8 ± 0.4, 5.7 ± 0.4, and 5.7 ± 0.3 respectively). In addition, emotional well-being and social functioning showed insignificant decreases in the more than 3 h group compared to other groups of mobile phone usage (69.3 ± 15.7, 70.9 ± 15.5, 65.2 ± 16.0, p = .091 and 82.9 ± 201, 81.2 ± 18.7, 77.6 ± 21.6, p = .267) respectively. No effect was detected between groups regarding various body compositions. Regarding physical activity classifications: the sedentary group constituted (36%) of the sample, whereas the average and athlete groups represented (53.7%) and (10.3%) of the total sample respectively. There was a significant decrease in BMI (29.6 ± 7.8, 25.3 ± 5.1,24.7 ± 5.6, p = .000), fat mass (24.7 ± 15.0, 17.1 ± 9.1, 15.3 ± 10.6, p = .000), and free fat mass (64.0 ± 10.2, 56.8 ± 8.7, 57.5 ± 8.0, p = .000) in the average and the athletic groups compared to the sedentary group. No significant difference was found in HbA1c between physical activity groups (5.8 ± 0.4, 5.7 ± 0.4, 5.7 ± 0.4, p = .218). Conclusions Mobile phone usage does not affect HbA1c and body composition parameters. Furthermore, we found the youngers used mobile phones longer than others. Insignificant decrease in emotional well-being and social functioning parameters of the style of life due to long mobile phone usage which needs more attention.
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Affiliation(s)
- Thamir Al-Khlaiwi
- Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Syed Shahid Habib
- Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | | | | | | | - Saud Queid
- College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Omar Alyabis
- College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Rangkooy H, Rahmati A, Dehaghi BF. Base transceiver station antennae exposure and workers' health. INTERNATIONAL JOURNAL OF OCCUPATIONAL SAFETY AND ERGONOMICS 2022; 29:863-868. [PMID: 35722815 DOI: 10.1080/10803548.2022.2085892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
BACKGROUND With the rapid development of technologies related to the communications industry, human exposure to electromagnetic fields has increased during recent decades. The study aimed at investigating the effect of exposure to waves emitted from the base transceiver stations (BTS) on workers' health. METHODS 240 workers (120 BTS maintenance workers (case group) and 120 office staff (control group)) participated in the study. In order to determine the general health conditions in two groups, along with electromagnetic waves exposure measurement, the general health questionnaire (GHQ) was completed and the data on blood parameters were assessed. RESULTS The mean age and job experience in the case and control groups were 34.1 ± 4.8 and 10.1 ± 6 years and 31.6 ± 5.5 and 8.8 ± 7 years, respectively. According to the GHQ results, only anxiety and insomnia subscales showed a significant difference between the two groups. The white blood cell and red blood cell counts in the case and control groups were 6715.6 ± 1591 and 7594 ± 2416, 5.3×106±4.6×105 and 5.05×106±5.39×105 per ml, respectively. Analysis of the results showed that the difference between the two groups was significant. CONCLUSION The results revealed that blood parameters in the BTS operators showed more changes. Thus, it can be concluded that these health impacts result from occupational exposure to BTS waves.
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Affiliation(s)
- Hosseinali Rangkooy
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Occupational Health, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Afshin Rahmati
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Occupational Health, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Behzad Fouladi Dehaghi
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Occupational Health, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Bodewein L, Dechent D, Graefrath D, Kraus T, Krause T, Driessen S. Systematic review of the physiological and health-related effects of radiofrequency electromagnetic field exposure from wireless communication devices on children and adolescents in experimental and epidemiological human studies. PLoS One 2022; 17:e0268641. [PMID: 35648738 PMCID: PMC9159629 DOI: 10.1371/journal.pone.0268641] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 04/29/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND For more than 20 years, the potential health risks of radiofrequency electromagnetic field (RF EMF) exposure from mobile communication devices on children and adolescents have been examined because they are considered sensitive population groups; however, it remains unclear whether such exposure poses any particular risk to them. OBJECTIVES The aim of this review was to systematically analyze and evaluate the physiological and health-related effects of RF EMF exposures from wireless communication devices (mobile phones, cordless phones, Bluetooth, etc.) on children and adolescents. METHODS This review was prepared according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Methodological limitations in individual studies were assessed using the Office of Health Assessment and Translation (OHAT) Risk-of-Bias Rating Tool for Human and Animal Studies. RESULTS A total of 42 epidemiological and 11 experimental studies were eligible for this review. Most of the studies displayed several methodological weaknesses that limited the internal validity of the results. Due to a lack of consistency regarding the outcomes as well as the lack of scientific rigor in most reviewed studies, the body of evidence for the effects of RF EMF of mobile communication devices on subjective symptoms, cognition, and behavior in children and adolescents was low to inadequate. Evidence from the studies investigating early childhood development, brain activity, cancer, and physiological parameters was considered inadequate for drawing conclusions about possible effects. DISCUSSION Overall, the body of evidence allows no final conclusion on the question whether exposure to RF EMF from mobile communication devices poses a particular risk to children and adolescents. There has been rapid development in technologies generating RF EMF, which are extensively used by children and adolescents. Therefore, we strongly recommend high-quality systematic research on children and adolescents, since they are generally considered as sensitive age groups.
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Affiliation(s)
- Lambert Bodewein
- Research Center for Bioelectromagnetic Interaction (femu)–Institute for Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Dagmar Dechent
- Research Center for Bioelectromagnetic Interaction (femu)–Institute for Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - David Graefrath
- Research Center for Bioelectromagnetic Interaction (femu)–Institute for Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Thomas Kraus
- Research Center for Bioelectromagnetic Interaction (femu)–Institute for Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Tobias Krause
- Research Center for Bioelectromagnetic Interaction (femu)–Institute for Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Sarah Driessen
- Research Center for Bioelectromagnetic Interaction (femu)–Institute for Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
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Development and Evaluation of a Machine Learning Prediction Model for Small-for-Gestational-Age Births in Women Exposed to Radiation before Pregnancy. J Pers Med 2022; 12:jpm12040550. [PMID: 35455666 PMCID: PMC9031835 DOI: 10.3390/jpm12040550] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/15/2022] [Accepted: 03/16/2022] [Indexed: 12/22/2022] Open
Abstract
Exposure to radiation has been associated with increased risk of delivering small-for-gestational-age (SGA) newborns. There are no tools to predict SGA newborns in pregnant women exposed to radiation before pregnancy. Here, we aimed to develop an array of machine learning (ML) models to predict SGA newborns in women exposed to radiation before pregnancy. Patients’ data was obtained from the National Free Preconception Health Examination Project from 2010 to 2012. The data were randomly divided into a training dataset (n = 364) and a testing dataset (n = 91). Eight various ML models were compared for solving the binary classification of SGA prediction, followed by a post hoc explainability based on the SHAP model to identify and interpret the most important features that contribute to the prediction outcome. A total of 455 newborns were included, with the occurrence of 60 SGA births (13.2%). Overall, the model obtained by extreme gradient boosting (XGBoost) achieved the highest area under the receiver-operating-characteristic curve (AUC) in the testing set (0.844, 95% confidence interval (CI): 0.713–0.974). All models showed satisfied AUCs, except for the logistic regression model (AUC: 0.561, 95% CI: 0.355–0.768). After feature selection by recursive feature elimination (RFE), 15 features were included in the final prediction model using the XGBoost algorithm, with an AUC of 0.821 (95% CI: 0.650–0.993). ML algorithms can generate robust models to predict SGA newborns in pregnant women exposed to radiation before pregnancy, which may thus be used as a prediction tool for SGA newborns in high-risk pregnant women.
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Wang Y, Jiang Z, Zhang L, Zhang Z, Liao Y, Cai P. 3.5-GHz radiofrequency electromagnetic radiation promotes the development of Drosophila melanogaster. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 294:118646. [PMID: 34896224 DOI: 10.1016/j.envpol.2021.118646] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 11/26/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
With the rapidly increasing popularity of 5G mobile technology, the effect of radiofrequency radiation on human health has caused public concern. This study explores the effects of a simulated 3.5 GHz radiofrequency electromagnetic radiation (RF-EMF) environment on the development and microbiome of flies under intensities of 0.1 W/m2, 1 W/m2 and 10 W/m2. We found that the pupation percentages in the first 3 days and eclosion rate in the first 2 days were increased under exposure to RF-EMF, and the mean development time was shortened. In a study on third-instar larvae, the expression levels of the heat shock protein genes hsp22, hsp26 and hsp70 and humoral immune system genes AttC, TotC and TotA were all significantly increased. In the oxidative stress system, DuoX gene expression was decreased, sod2 and cat gene expression levels were increased, and SOD and CAT enzyme activity also showed a significant increase. According to the 16S rDNA results, the diversity and species abundance of the microbial community decreased significantly, and according to the functional prediction analysis, the genera Acetobacter and Lactobacillus were significantly increased. In conclusion, 3.5 GHz RF-EMF may enhance thermal stress, oxidative stress and humoral immunity, cause changes in the microbial community, and regulate the insulin/TOR and ecdysteroid signalling pathways to promote fly development.
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Affiliation(s)
- Yahong Wang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, P.R. China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Zhihao Jiang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, P.R. China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Lu Zhang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, P.R. China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Ziyan Zhang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China; Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Yanyan Liao
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, P.R. China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Peng Cai
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China; Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, 200031, China
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Wang Y, Zhang H, Zhang Z, Sun B, Tang C, Zhang L, Jiang Z, Ding B, Liao Y, Cai P. Simulated mobile communication frequencies (3.5 GHz) emitted by a signal generator affects the sleep of Drosophila melanogaster. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 283:117087. [PMID: 33894629 DOI: 10.1016/j.envpol.2021.117087] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/12/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
With the rapid development of science and technology, 5G technology will be widely used, and biosafety concerns about the effects of 5G radiofrequency radiation on health have been raised. Drosophila melanogaster was selected as the model organism for our study, in which a 3.5 GHz radiofrequency radiation (RF-EMR) environment was simulated at intensities of 0.1 W/m2, 1 W/m2, and 10 W/m2. The activity of parent male and offspring (F1) male flies was measured using a Drosophila activity monitoring system under short-term and long-term 3.5 GHz RF-EMR exposure. Core genes associated with heat stress, the circadian clock and neurotransmitters were detected by QRT-PCR technology, and the contents of GABA and glutamate were detected by UPLC-MS. The results show that short-term RF-EMR exposure increased the activity level and reduced the sleep duration while long-term RF-EMR exposure reduced the activity level and increased the sleep duration of F1 male flies. Under long-term RF-EMR, the expression of heat stress response-related hsp22, hsp26 and hsp70 genes was increased, the expression of circadian clock-related per, cyc, clk, cry, and tim genes was altered, the content of GABA and glutamate was reduced, and the expression levels of synthesis, transport and receptor genes were altered. In conclusion, long-term RF-EMR exposure enhances the heat stress response of offspring flies and then affects the expression of circadian clock and neurotransmitter genes, which leads to decreased activity, prolonged sleep duration, and improved sleep quality.
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Affiliation(s)
- Yahong Wang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, PR China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Hongying Zhang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, PR China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Ziyan Zhang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China; Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Boqun Sun
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, PR China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Chao Tang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, PR China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Lu Zhang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, PR China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Zhihao Jiang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, PR China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Bo Ding
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, PR China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Yanyan Liao
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of the Chinese Academy of Sciences, Beijing, PR China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China
| | - Peng Cai
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Xiamen Key Laboratory of Physical Environment, Xiamen, 361021, China; Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, 200031, China.
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Chowdhury A, Singh Y, Das U, Waghmare D, Dasgupta R, Majumder SK. Effects of mobile phone emissions on human red blood cells. JOURNAL OF BIOPHOTONICS 2021; 14:e202100047. [PMID: 33871929 DOI: 10.1002/jbio.202100047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 06/12/2023]
Abstract
Raman spectroscopy was performed on GSM 900 and 1800 MHz mobile phone signal exposed red blood cells (RBCs). The observed changes in the Raman spectra of mobile signal exposed RBCs compared to unexposed control suggest reduced hemoglobin-oxygen affinity for the exposed cells. The possible mechanism may involve activation of the voltage gated membrane Ca2+ channels by the mobile phone emissions resulting in an increase in the levels of adenosine triphosphate (ATP) and 2,3-diphosphoglycerate (2,3-DPG) in cells via altered metabolic activities. Further studies carried out with fluorescent Ca2+ indicator confirmed increased intracellular Ca2+ level in the exposed cells. Since intracellular ATP level influences the shape and mechanics of RBCs, exposed cells were studied using diffraction phase microscopy and optical tweezers. Detectable changes in shape and mechanical properties were observed due to mobile signal exposure.
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Affiliation(s)
- Aniket Chowdhury
- Laser Biomedical Applications Division, Raja Ramanna Centre of Advanced Technology, Indore, Madhya Pradesh, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra, India
| | - Yashveer Singh
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra, India
| | - Uttam Das
- Laser Biomedical Applications Division, Raja Ramanna Centre of Advanced Technology, Indore, Madhya Pradesh, India
| | - Deepak Waghmare
- School of Physics, Devi Ahilya University, Indore, Madhya Pradesh, India
| | - Raktim Dasgupta
- Laser Biomedical Applications Division, Raja Ramanna Centre of Advanced Technology, Indore, Madhya Pradesh, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra, India
| | - Shovan Kumar Majumder
- Laser Biomedical Applications Division, Raja Ramanna Centre of Advanced Technology, Indore, Madhya Pradesh, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra, India
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Al-Khlaiwi TM, Habib SS, Meo SA, Alqhtani MS, Ogailan AA. The association of smart mobile phone usage with cognitive function impairment in Saudi adult population. Pak J Med Sci 2020; 36:1628-1633. [PMID: 33235587 PMCID: PMC7674882 DOI: 10.12669/pjms.36.7.2826] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Background & Objectives: Excessive use of mobile phones has raised a great concern about adverse health effects on human health. The present study’s aim was to investigate the association of the usage of smartphones with cognitive function impairment in the Saudi adult population. Methods: The present cross-sectional study was conducted in the Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia during September 2019 to January 2020. A total of 251 Saudi adults who were using mobile phones were recruited, and knowledge, attitude and practices were assessed by interview using a predesigned proforma. The Montreal Cognitive Assessment (MOCA) tool was employed to assess the cognitive functions, comparison was made between daily mobile phone usage group and their correlated Montreal Cognitive Score (MOCA). Results: The mean age for 251 Saudi adult participants was 32.43 ± 12.8 years. More than 80% of the participants used their mobile phone for more than two hours daily. About 61% of the participants were not aware of the side effect of the radiation generated from mobile phone. The participants showed a decrease in MOCA score with increased daily mobile phone usage (MOCA=26.8 for <1 hour daily usage, 26.1 for 1-2 hours, and 24.6 for >2 hours with P< 0.05). In addition, participants showed decreased MOCA score by keeping their mobile phone near their pillow while sleeping; MOCA=24.35 for near pillow groups and >25.5 for the groups that placed their mobile phone away from the pillow. Conclusions: Excessive use of mobile phones can cause cognitive function impairment. Strict policies must be implemented to control the use of smartphones in order to minimize the effects on mobile phone radiation on cognition. The media has to be on the forefront in educating the public about the proper usage of mobile phones.
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Affiliation(s)
- Thamir M Al-Khlaiwi
- Thamir M. Al-Khlaiwi Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Syed Shahid Habib
- Syed Shahid Habib Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Sultan Ayoub Meo
- Sultan Ayoub Meo Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed S Alqhtani
- Mohammed S Alqhtani Medical Student, College of Medicine, King Saud University
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Khosravipour M, Khosravipour H. The association between urinary metabolites of polycyclic aromatic hydrocarbons and diabetes: A systematic review and meta-analysis study. CHEMOSPHERE 2020; 247:125680. [PMID: 32069705 DOI: 10.1016/j.chemosphere.2019.125680] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/13/2019] [Accepted: 12/15/2019] [Indexed: 06/10/2023]
Abstract
To examine the association between urinary metabolites of polycyclic aromatic hydrocarbons (OH-PAHs) and diabetes, online databases, including PubMed, Scopus, and Web of Science, were searched on July 17, 2019. Of the 668 articles identified through searching, six cross-sectional studies involving 24,406 participants were included. The pooled odds ratio (OR) and 95% confidence interval (CI) were calculated using a random-effect model. Heterogeneity was measured by reporting the I-square index. Moreover, subgroup analysis according to types of metabolites was performed. We found a significantly higher odds of diabetes in the highest versus the lowest category of urinary naphthalene (NAP), fluorine (FLU), phenanthrene (PHEN), and total OH-PAH metabolites. The pooled OR (95% CI) was estimated at 1.47 (1.17, 1.78), 1.50 (1.29, 1.71), 1.41 (1.21, 1.60), and 1.61 (1.01, 2.21), respectively. We also found a significant association per 1-fold increase in FLU (OR = 1.09, 95% CI [1.00, 1.19]) and PHEN (OR = 1.19, 95% CI [1.08, 1.30]) metabolites. In subgroup analysis stratified by types of OH-PAH metabolites, A significant stronger odds of diabetes was observed in the highest versus the lowest category of 2-PHEN (OR = 1.66, 95% CI [1.32, 2.00]), 2-NAP (OR = 1.66, 95% CI [1.16, 2.17]), 2-FLU (OR = 1.62, 95% CI [1.28, 1.97]), and 9-FLU (OR = 1.62, 95% CI [1.21, 2.04]) metabolites. Furthermore, there was a meaningfully greater likelihood of diabetes per 1-fold increase in 2-FLU (OR = 1.34, 95% CI [1.10, 1.57]), 2-PHEN (OR = 1.33, 95% CI [1.14, 1.51]), and 3-PHEN (OR = 1.19, 95% CI [1.04, 1.34]) metabolites. In conclusion, our study suggests the significant odds of association between urinary OH-PAH metabolites and diabetes.
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Affiliation(s)
- Masoud Khosravipour
- Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Hadis Khosravipour
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Meo SA, Muneif YAB, BenOmran NA, AlSadhan MA, Hashem RF, Alobaisi AS. Prevalence of Pre Diabetes and Type 2 Diabetes Mellitus among cement industry workers. Pak J Med Sci 2020; 36:32-36. [PMID: 32063927 PMCID: PMC6994864 DOI: 10.12669/pjms.36.2.1266] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/23/2018] [Accepted: 10/15/2018] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES Occupational and environmental pollution have become an imperative jeopardy for developing devastating metabolic diseases. Limited animal model studies have examined the impact of exposure to cement dust on metabolic conditions. This study aimed to assess the prevalence of pre-diabetes and Type-2 diabetic mellitus (T2DM) among non-smoking cement mill workers. METHODS This epidemiological cross sectional study was conducted in the "Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia" during the period Oct 2016 to June 2017. Initially 310 cement mill workers were interviewed; after the interview and clinical history taking, 186 non-smoking cement mill employees were finally recruited. The cement mill employees were exposed to cement dust-related pollution in a cement industry for eight hours a day for six days a week. The mean age was 36.56 ± 0.78 years, mean BMI was 25.70 ± 0.29 m/kg2, and mean period of employment in the cement industry was 82.77 ± 6.95 months. HbA1c was measured using the Dimension Xpand Plus Integrated Chemistry System (USA). RESULTS The cement mill employees were divided into three groups: non-diabetics group, with glycated hemoglobin (HbA1c) <5.7%; pre-diabetics group, with HbA1c 5.7-6.4%; and diabetics group, with HbA1c >6.4%. Among the cement mill personnel, 79 (42.47%) were non-diabetics, 28 (15.05%) were pre-diabetics, and 79 (42.47%) were diabetics. The prevalence of pre-diabetes and T2DM among cement mill employees was considerably associated with the period of employment in the cement industry (p=0.032). CONCLUSIONS Exposure to cement dust was associated with an increased prevalence of pre- diabetes and T2DM among cement industry employees.
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Affiliation(s)
- Sultan Ayoub Meo
- Dr. Sultan Ayoub Meo, MBBS, PhD. Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Yasser Abdullah Bin Muneif
- Dr. Yasser Abdullah Bin Muneif, MBBS. Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Nasser Abdullah BenOmran
- Dr. Nasser Abdullah BenOmran, MBBS. Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad Abdullah AlSadhan
- Dr. Mohammad Abdullah AlSadhan, MBBS. Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Raed Fuad Hashem
- Dr. Raed Fuad Hashem, MBBS, Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Abdullah Saud Alobaisi
- Dr. Abdullah Saud Alobaisi, MBBS. Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Conflicts of Interest and Misleading Statements in Official Reports about the Health Consequences of Radiofrequency Radiation and Some New Measurements of Exposure Levels. MAGNETOCHEMISTRY 2019. [DOI: 10.3390/magnetochemistry5020031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Official reports to governments throughout the Western world attempt to allay public concern about the increasing inescapability of the microwaves (also known as radiofrequency radiation or RF) emitted by “smart” technologies, by repeating the dogma that the only proven biological effect of RF is acute tissue heating, and assuring us that the levels of radiation to which the public are exposed are significantly less than those needed to cause acute tissue heating. The present paper first shows the origin of this “thermal-only” dogma in the military paranoia of the 1950s. It then reveals how financial conflict of interest and intentionally misleading statements have been powerful factors in preserving that dogma in the face of now overwhelming evidence that it is false, using one 2018 report to ministers of the New Zealand government as an example. Lastly, some new pilot measurements of ambient RF power densities in Auckland city are reported and compared with levels reported in other cities, various international exposure limits, and levels shown scientifically to cause biological harm. It is concluded that politicians in the Western world should stop accepting soothing reports from individuals with blatant conflicts of interest and start taking the health and safety of their communities seriously.
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Meo SA, Almahmoud M, Alsultan Q, Alotaibi N, Alnajashi I, Hajjar WM. Mobile Phone Base Station Tower Settings Adjacent to School Buildings: Impact on Students' Cognitive Health. Am J Mens Health 2018; 13:1557988318816914. [PMID: 30526242 PMCID: PMC6775553 DOI: 10.1177/1557988318816914] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The use of mobile phones has remarkably increased and become a basic need of daily life. Increasing subscriptions of mobile phones boost the installation of mobile phone base station towers (MPBSTs) in crowded commercial and residential areas including near school buildings. This study investigated the impact of exposure to radiofrequency electromagnetic field (RF-EMF) radiation generated by MPBSTs on cognitive functions. Two hundred and seventeen volunteer male students aged between 13 and 16 registered from two different intermediate schools: 124 students were from School 1 and 93 students were from School 2. The MPBSTs were located within 200 m from the school buildings. In School 1, RF-EMF was 2.010 µW/cm2 with a frequency of 925 MHz and in School 2, RF-EMF was 10.021 µW/cm2 with a frequency of 925 MHz. Students were exposed to EMFR for 6 hr a day, 5 days a week for a total period of 2 years. The Narda Safety Test Solution device SRM-3006 was used to measure RF-EMF in both schools, and cognitive functions tasks were measured by the Cambridge Neuropsychological Test Automated Battery (CANTAB). Significant impairment in Motor Screening Task (MOT; p = .03) and Spatial Working Memory (SWM) task (p = .04) was identified among the group of students who were exposed to high RF-EMF produced by MPBSTs. High exposure to RF-EMF produced by MPBSTs was associated with delayed fine and gross motor skills, spatial working memory, and attention in school adolescents compared to students who were exposed to low RF-EMF.
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Affiliation(s)
- Sultan Ayoub Meo
- 1 Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed Almahmoud
- 1 Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Qasem Alsultan
- 1 Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Nawaf Alotaibi
- 1 Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Ibrahim Alnajashi
- 1 Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Waseem M Hajjar
- 2 Department of Thoracic Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Meo SA, AlMutairi FJ, Alasbali MM, Alqahtani TB, AlMutairi SS, Albuhayjan RA, Al Rouq F, Ahmed N. Men's Health in Industries: Plastic Plant Pollution and Prevalence of Pre-diabetes and Type 2 Diabetes Mellitus. Am J Mens Health 2018; 12:2167-2172. [PMID: 30222030 PMCID: PMC6199426 DOI: 10.1177/1557988318800203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Plastic production is prominently increasing and its pollution is an emerging environmental global health concern. This study aimed to investigate the occurrence of pre-diabetes and type 2 diabetes mellitus (T2DM) among nonsmoking plastic industry workers. Three hundred and forty volunteers male plastic industry workers were interviewed after medical history and examination; finally, 278 nonsmoking plastic industry workers were selected. The mean age for the participants was 38.03 ± 10.86 years and body mass index was 25.52 ± 3.15 (kg/m)2. The plastic industry workers had been exposed to plastic plant pollution for 8 hr daily, 6 days in a week. Subjects with glycated hemoglobin (HbA1c) less than 5.7% were considered non-diabetics; HbA1c 5.7%–6.4% were pre-diabetics; and subjects with HbA1c greater than 6.4% were considered diabetics. In plastic industry workers, the prevalence of pre-diabetes was 176 (63.30%) and T2DM was 66 (23.74%); however, 36 (12.95%) plastic plant workers were normal. The prevalence of pre-diabetes and T2DM among plastic industry workers was significantly increased with duration of working exposure in plastic industry (p = .0001). Exposure to plastic plant pollution is associated with the prevalence of pre-diabetes and T2DM among plastic industry workers. The prevalence was associated with the duration of working exposure in plastic industry. The occupational and environmental health executives must take priority steps to minimize the plastic plant pollution from plastic industries to reduce the occurrence of pre-diabetes and T2DM among the plastic industrial workers and save the men’s health in industries.
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Affiliation(s)
- Sultan Ayoub Meo
- 1 Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Faris Jamal AlMutairi
- 1 Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | | | - Turki Badr Alqahtani
- 1 Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Saad Saeed AlMutairi
- 1 Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | | | - Fawziah Al Rouq
- 1 Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Naseer Ahmed
- 2 Department of Biological and Biomedical Sciences, Aga Khan University Hospital, Karachi, Pakistan
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Di Ciaula A. Towards 5G communication systems: Are there health implications? Int J Hyg Environ Health 2018; 221:367-375. [PMID: 29402696 DOI: 10.1016/j.ijheh.2018.01.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 01/19/2018] [Accepted: 01/20/2018] [Indexed: 02/07/2023]
Abstract
The spread of radiofrequency electromagnetic fields (RF-EMF) is rising and health effects are still under investigation. RF-EMF promote oxidative stress, a condition involved in cancer onset, in several acute and chronic diseases and in vascular homeostasis. Although some evidences are still controversial, the WHO IARC classified RF-EMF as "possible carcinogenic to humans", and more recent studies suggested reproductive, metabolic and neurologic effects of RF-EMF, which are also able to alter bacterial antibiotic resistance. In this evolving scenario, although the biological effects of 5G communication systems are very scarcely investigated, an international action plan for the development of 5G networks has started, with a forthcoming increment in devices and density of small cells, and with the future use of millimeter waves (MMW). Preliminary observations showed that MMW increase skin temperature, alter gene expression, promote cellular proliferation and synthesis of proteins linked with oxidative stress, inflammatory and metabolic processes, could generate ocular damages, affect neuro-muscular dynamics. Further studies are needed to better and independently explore the health effects of RF-EMF in general and of MMW in particular. However, available findings seem sufficient to demonstrate the existence of biomedical effects, to invoke the precautionary principle, to define exposed subjects as potentially vulnerable and to revise existing limits. An adequate knowledge of pathophysiological mechanisms linking RF-EMF exposure to health risk should also be useful in the current clinical practice, in particular in consideration of evidences pointing to extrinsic factors as heavy contributors to cancer risk and to the progressive epidemiological growth of noncommunicable diseases.
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Affiliation(s)
- Agostino Di Ciaula
- Division of Internal Medicine, Hospital of Bisceglie (ASL BAT), Bisceglie, Italy; International Society of Doctors for Environment (ISDE), Arezzo, Italy.
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Mao L, Wang H, Ma F, Guo Z, He H, Zhou H, Wang N. Exposure to static magnetic fields increases insulin secretion in rat INS-1 cells by activating the transcription of the insulin gene and up-regulating the expression of vesicle-secreted proteins. Int J Radiat Biol 2017; 93:831-840. [PMID: 28593826 DOI: 10.1080/09553002.2017.1332439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE To evaluate the effect of static magnetic fields (SMFs) on insulin secretion and explore the mechanisms underlying exposure to SMF-induced insulin secretion in rat insulinoma INS-1 cells. MATERIALS AND METHODS INS-1 cells were exposed to a 400 mT SMF for 72 h, and the proliferation of INS-1 cells was detected by (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The secretion of insulin was measured with an enzyme linked immunosorbent assays (ELISA), the expression of genes was detected by real-time PCR, and the expression of proteins was measured by Western blotting. RESULTS Exposure to an SMF increased the expression and secretion of insulin by INS-1 cells but did not affect cell proliferation. Moreover, SMF exposure up-regulated the expression of several pancreas-specific transcriptional factors. Specifically, the activity of the rat insulin promoter was enhanced in INS-1 cells exposed to an SMF, and the expression levels of synaptosomal-associated protein 25 (SNAP-25) and syntaxin-1A were up-regulated after exposure to an SMF. CONCLUSIONS SMF exposure can promote insulin secretion in rat INS-1 cells by activating the transcription of the insulin gene and up-regulating the expression of vesicle-secreted proteins.
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Affiliation(s)
- Libin Mao
- a Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P.R. China
| | - Huiqin Wang
- a Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P.R. China
| | - Fenghui Ma
- a Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P.R. China
| | - Zhixia Guo
- a Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P.R. China
| | - Hongpeng He
- a Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P.R. China
| | - Hao Zhou
- a Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P.R. China
| | - Nan Wang
- a Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education and Tianjin, College of Biotechnology , Tianjin University of Science and Technology , Tianjin , P.R. China
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Parsaei H, Faraz M, Mortazavi SMJ. A Multilayer Perceptron Neural Network–Based Model for Predicting Subjective Health Symptoms in People Living in the Vicinity of Mobile Phone Base Stations. ECOPSYCHOLOGY 2017. [DOI: 10.1089/eco.2017.0011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Parsaei
- Medical Physics and Medical Engineering Department, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M. Faraz
- Medical Physics and Medical Engineering Department, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - S. M. J. Mortazavi
- Department of Diagnostic Imaging, Fox Chase Cancer Center, Philadelphia, Pennsylvania, USA
- Ionizing and Non-ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran
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Kleiber CE. Radiation from wireless technology elevates blood glucose and body temperature in 40-year-old type 1 diabetic male. Electromagn Biol Med 2017; 36:259-264. [DOI: 10.1080/15368378.2017.1323762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bhargav H, Srinivasan TM, Bista S, Mooventhan A, Suresh V, Hankey A, Nagendra HR. Acute effects of mobile phone radiations on subtle energy levels of teenagers using electrophotonic imaging technique: A randomized controlled study. Int J Yoga 2017; 10:16-23. [PMID: 28149063 PMCID: PMC5225739 DOI: 10.4103/0973-6131.186163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background: Mobile phones induce radio frequency electromagnetic field (RF-EMF) which has been found to affect subtle energy levels of adults through Electrophotonic Imaging (EPI) technique in a previous pilot study. Materials and Methods: We enrolled 61 healthy right-handed healthy teenagers (22 males and 39 females) in the age range of 17.40 ± 0.24 years from educational institutes in Bengaluru. Subjects were randomly divided into two groups: (1) (mobile phone in ON mode [MPON] at right ear) and (2) mobile phone in OFF mode (MPOF). Subtle energy levels of various organs of the subjects were measured using gas discharge visualization Camera Pro device, in double-blind conditions, at two points of time: (1) baseline and (2) after 15 min of MPON/MPOF exposure. As the data were found normally distributed, paired and independent samples t-test were applied to perform within and between group comparisons, respectively. Results: The subtle energy levels were significantly reduced after RF-EMF exposure in MPON group as compared to MPOF group for following areas: (a) Pancreas (P = 0.001), (b) thyroid gland (P = 0.002), (c) cerebral cortex (P < 0.01), (d) cerebral vessels (P < 0.05), (e) hypophysis (P = 0.013), (f) left ear and left eye (P < 0.01), (g) liver (P < 0.05), (h) right kidney (P < 0.05), (i) spleen (P < 0.04), and (j) immune system (P < 0.02). Conclusion: Fifteen minutes of RF-EMF exposure exerted quantifiable effects on subtle energy levels of endocrine glands, nervous system, liver, kidney, spleen, and immune system of healthy teenagers. Future studies should try to correlate these findings with respective biochemical markers and standard radio-imaging techniques.
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Affiliation(s)
- Hemant Bhargav
- Division of Yoga and Life Sciences, S-VYASA Yoga University, Bengaluru, Karnataka, India
| | - T M Srinivasan
- Division of Yoga and Physical Sciences, S-VYASA Yoga University, Bengaluru, Karnataka, India
| | - Suman Bista
- Division of Yoga and Life Sciences, S-VYASA Yoga University, Bengaluru, Karnataka, India
| | - A Mooventhan
- Division of Yoga and Life Sciences, S-VYASA Yoga University, Bengaluru, Karnataka, India
| | - Vandana Suresh
- Division of Yoga and Life Sciences, S-VYASA Yoga University, Bengaluru, Karnataka, India
| | - Alex Hankey
- Division of Yoga and Physical Sciences, S-VYASA Yoga University, Bengaluru, Karnataka, India
| | - H R Nagendra
- Division of Yoga and Life Sciences, S-VYASA Yoga University, Bengaluru, Karnataka, India
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Meo SA, Alsubaie Y, Almubarak Z, Almutawa H, AlQasem Y, Hasanato RM. Response to Comments on Meo et al. Association of Exposure to Radio-Frequency Electromagnetic Field Radiation (RF-EMFR) Generated by Mobile Phone Base Stations with Glycated Hemoglobin (HbA1c) and Risk of Type 2 Diabetes Mellitus. Int. J. Environ. Res. Public Health, 2015, 12, 14519-14528. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:E262. [PMID: 26927150 PMCID: PMC4808925 DOI: 10.3390/ijerph13030262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 02/12/2016] [Accepted: 02/23/2016] [Indexed: 11/17/2022]
Affiliation(s)
- Sultan Ayoub Meo
- Department of Physiology, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia; yazeed-1992-@hotmail.com (Y.A.); (Z.A.); (H.A.); (Y.A.)
| | - Yazeed Alsubaie
- Department of Physiology, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia; yazeed-1992-@hotmail.com (Y.A.); (Z.A.); (H.A.); (Y.A.)
| | - Zaid Almubarak
- Department of Physiology, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia; yazeed-1992-@hotmail.com (Y.A.); (Z.A.); (H.A.); (Y.A.)
| | - Hisham Almutawa
- Department of Physiology, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia; yazeed-1992-@hotmail.com (Y.A.); (Z.A.); (H.A.); (Y.A.)
| | - Yazeed AlQasem
- Department of Physiology, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia; yazeed-1992-@hotmail.com (Y.A.); (Z.A.); (H.A.); (Y.A.)
| | - Rana Muhammed Hasanato
- Department of Clinical Bio-Chemistry, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia;
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Comments on Meo et al. Association of Exposure to Radio-Frequency Electromagnetic Field Radiation (RF-EMFR) Generated by Mobile Phone Base Stations with Glycated Hemoglobin (HbA1c) and Risk of Type 2 Diabetes Mellitus. Int. J. Environ. Res. Public Health, 2015, 12, 14519-14528. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13030261. [PMID: 26927149 PMCID: PMC4808924 DOI: 10.3390/ijerph13030261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 01/21/2016] [Accepted: 02/23/2016] [Indexed: 12/11/2022]
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Cho YM, Lim HJ, Jang H, Kim K, Choi JW, Shin C, Lee SK, Kwon JH, Kim N. A cross-sectional study of the association between mobile phone use and symptoms of ill health. ENVIRONMENTAL HEALTH AND TOXICOLOGY 2016; 31:e2016022. [PMID: 27788568 PMCID: PMC5144583 DOI: 10.5620/eht.e2016022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 10/10/2016] [Accepted: 10/21/2016] [Indexed: 05/20/2023]
Abstract
OBJECTIVES This study analyzed the associations between mobile phone call frequency and duration with non-specific symptoms. METHODS This study was conducted with a population group including 532 non-patient adults established by the Korean Genome and Epidemiology Study. The pattern of phone call using a mobile phone was investigated through face-to-face interview. Structured methods applied to quantitatively assess health effects are Headache Impact Test-6 (HIT-6), Psychosocial Well-being Index-Short Form, Beck Depression Inventory, Korean-Instrumental Activities of Daily Living, Perceived Stress Scale (PSS), Pittsburgh Sleep Quality Index, and 12-item Short Form Health Survey where a higher score represents a higher greater health effect. RESULTS The average daily phone call frequency showed a significant correlation with the PSS score in female subjects. Increases in the average duration of one phone call were significantly correlated with increases in the severity of headaches in both sexes. The mean (standard deviation) HIT-6 score in the subgroup of subjects whose average duration of one phone call was five minutes or longer was 45.98 (8.15), as compared with 42.48 (7.20) in those whose average duration of one phone call was <5 minutes. The severity of headaches was divided into three levels according to the HIT-6 score (little or no impact/moderate impact/substantial or severe impact), and a logistic regression analysis was performed to investigate the association between an increased phone call duration and the headache severity. When the average duration of one phone call was five minutes or longer, the odds ratio (ORs) and the 95% confidence intervals (CIs) for the moderate impact group were 2.22 and 1.18 to 4.19, respectively. The OR and 95% CI for the substantial or severe impact group were 4.44 and 2.11 to 8.90, respectively. CONCLUSIONS Mobile phone call duration was not significantly associated with stress, sleep, cognitive function, or depression, but was associated with the severity of headaches.
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Affiliation(s)
- Yong Min Cho
- Institute for Life and Environment Technology, Smartive Corporation, Seoul, Korea
| | - Hee Jin Lim
- Institute for Occupational and Environmental Health, Korea University, Seoul, Korea
| | - Hoon Jang
- Institute for Occupational and Environmental Health, Korea University, Seoul, Korea
| | - Kyunghee Kim
- Institute for Occupational and Environmental Health, Korea University, Seoul, Korea
| | - Jae Wook Choi
- Institute for Occupational and Environmental Health, Korea University, Seoul, Korea
- Correspondence: Jae Wook Choi, 73 Inchon-ro, Seongbuk-gu, Seoul 02841, Korea Tel: +82-2-2286-1470 Fax: +82-2-927-7220 E-mail:
| | - Chol Shin
- Institute of Human Genome Study, Korea University Ansan Hospital, Ansan, Korea
| | - Seung Ku Lee
- Institute of Human Genome Study, Korea University Ansan Hospital, Ansan, Korea
| | - Jong Hwa Kwon
- EM Environment Research Team, Electronics and Telecommunications Research Institute, Daejeon, Korea
| | - Nam Kim
- Division of Information and Communication Engineering, Chungbuk National University, Chungju, Korea
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