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Deng H, Liu L, Tang X, Lu Y, Wang X, Zhao Y, Shi Y. Impact of specific electromagnetic radiation on wakefulness in mice. Proc Natl Acad Sci U S A 2024; 121:e2313903121. [PMID: 38557178 PMCID: PMC11009626 DOI: 10.1073/pnas.2313903121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 02/22/2024] [Indexed: 04/04/2024] Open
Abstract
Electromagnetic radiation (EMR) in the environment, particularly in the microwave range, may constitute a public health concern. Exposure to 2.4 GHz EMR modulated by 100 Hz square pulses was recently reported to markedly increase wakefulness in mice. Here, we demonstrate that a similar wakefulness increase can be induced by the modulation frequency of 1,000 Hz, but not 10 Hz. In contrast to the carrier frequency of 2.4 GHz, 935 MHz EMR of the same power density has little impact on wakefulness irrespective of modulation frequency. Notably, the replacement of the 100 Hz square-pulsed modulation by sinusoidal-pulsed modulation of 2.4 GHz EMR still allows a marked increase of wakefulness. In contrast, continuous sinusoidal amplitude modulation of 100 Hz with the same time-averaged power output fails to trigger any detectable change of wakefulness. Therefore, alteration of sleep behavior by EMR depends upon not just carrier frequency but also frequency and mode of the modulation. These results implicate biological sensing mechanisms for specific EMR in animals.
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Affiliation(s)
- Hu Deng
- Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing100084, China
- Peking University Huilongguan Clinical Medical School, Beijing Huilongguan Hospital, Beijing100096, China
| | - Lingyu Liu
- Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing100084, China
| | - Xiaping Tang
- Westlake Laboratory of Life Sciences and Biomedicine, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou310024, Zhejiang Province, China
| | - Yingxian Lu
- Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing100084, China
| | - Xiaofei Wang
- Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing100084, China
| | - Yanyu Zhao
- Westlake Laboratory of Life Sciences and Biomedicine, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou310024, Zhejiang Province, China
| | - Yigong Shi
- Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing100084, China
- Westlake Laboratory of Life Sciences and Biomedicine, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou310024, Zhejiang Province, China
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou310024, Zhejiang Province, China
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Hinrikus H, Koppel T, Lass J, Orru H, Roosipuu P, Bachmann M. Possible health effects on the human brain by various generations of mobile telecommunication: a review based estimation of 5G impact. Int J Radiat Biol 2022; 98:1210-1221. [PMID: 34995145 DOI: 10.1080/09553002.2022.2026516] [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: 10/19/2022]
Abstract
PURPOSE The deployment of new 5G NR technology has significantly raised public concerns in possible negative effects on human health by radiofrequency electromagnetic fields (RF EMF). The current review is aimed to clarify the differences between possible health effects caused by the various generations of telecommunication technology, especially discussing and projecting possible health effects by 5G. The review of experimental studies on the human brain over the last fifteen years and the discussion on physical mechanisms and factors determining the dependence of the RF EMF effects on frequency and signal structure have been performed to discover and explain the possible distinctions between health effects by different telecommunication generations. CONCLUSIONS The human experimental studies on RF EMF effects on the human brain by 2G, 3G and 4G at frequencies from 450 to 2500 MHz were available for analyses. The search for publications indicated no human experimental studies by 5G nor at the RF EMF frequencies higher than 2500 MHz. The results of the current review demonstrate no consistent relationship between the character of RF EMF effects and parameters of exposure by different generations (2G, 3G, 4G) of telecommunication technology. At the RF EMF frequencies lower than 10 GHz, the impact of 5G NR FR1 should have no principal differences compared to the previous generations. The radio frequencies used in 5G are even higher and the penetration depths of the fields are smaller, therefore the effect is rather lower than at previous generations. At the RF EMF frequencies higher than 10 GHz, the mechanism of the effects might differ and the impact of 5G NR FR2 becomes unpredictable. Existing knowledge about the mechanism of RF EMF effects at millimeter waves lacks sufficient experimental data and theoretical models for reliable conclusions. The insufficient knowledge about the possible health effects at millimeter waves and the lack of in vivo experimental studies on 5G NR underline an urgent need for the theoretical and experimental investigations of health effects by 5G NR, especially by 5G NR FR2.
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Affiliation(s)
- Hiie Hinrikus
- Department of Health Technologies, School of Information Technologies, Tallinn University of Technology, Tallinn, Estonia
| | - Tarmo Koppel
- Department of Business Administration, School of Business and Governance, Tallinn University of Technology, Tallinn, Estonia
| | - Jaanus Lass
- Department of Health Technologies, School of Information Technologies, Tallinn University of Technology, Tallinn, Estonia
| | - Hans Orru
- Department of Public Health, Institute of Family Medicine and Public Health, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Priit Roosipuu
- Thomas Johann Seebeck Department of Electronics, School of Information Technologies, Tallinn University of Technology, Tallinn, Estonia
| | - Maie Bachmann
- Department of Health Technologies, School of Information Technologies, Tallinn University of Technology, Tallinn, Estonia
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Owolabi J, Ilesanmi OS, Luximon-Ramma A. Perceptions and Experiences About Device-Emitted Radiofrequency Radiation and Its Effects on Selected Brain Health Parameters in Southwest Nigeria. Cureus 2021; 13:e18211. [PMID: 34703703 PMCID: PMC8541654 DOI: 10.7759/cureus.18211] [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] [Accepted: 09/23/2021] [Indexed: 11/24/2022] Open
Abstract
Introduction Radiofrequency radiation (RFR) is a form of non-ionising radiation that is used or emitted by a number of technologies and innovative devices including mobile phones and computers and gadgets. Exposure to RFR has been reported to have certain negative effects on human health. It is clear that quality and reliable data will be required with respect to the specific nature of RFR effects on mental health. This research considered the perceptions and exposure-related experiences of people within a Nigerian population with respect to RFR. Methods Structured and validated questionnaires were used to profile self-reported patterns of behaviour and sleep in humans. Questionnaire administration-electronic was opened for exactly one week, consisting of 25 specific questions and five open-ended questions [total = 30 questions]. A total population approach was adopted [N=~240]. Bivariate analysis using Chi-square tests were conducted to determine the association between knowledge of electronic gadgets as a source of radiofrequency radiation and sociodemographic characteristics of respondents. Binary logistic regression was used to determine the factors associated with good knowledge of electronic gadgets as a source of radiofrequency radiation. The level of statistical significance was set at p ≤ 0.05. Results The response rate was approximately 84%. Fatigue/tiredness [69.6%], attention deficit [69.1%] and headache [62.4%] ranked top amongst RFR-associated negative effects on mental health. Among the respondents, 29 (56.9%) among those above 20 years had good knowledge of radiofrequency radiation from electronic gadgets compared to 72 (47.2%) aged 20 years and below (X2 = 1.285, p = 0.257). Also, 45 (59.2%) of persons who lived in a town/village had good knowledge of radiofrequency radiation from electronic gadgets compared to 56 (44.4%) who lived in the city (X2 = 4.135, p = 0.042). Persons who lived in a town/village had nearly two times the odds of having good knowledge of RFR from electronic gadgets. Conclusion The study showed that respondents had experienced significant and negative effects of RFR on their mental health. The current level of knowledge and awareness on the nature of RFR and exposures was just about average, indicating a critical and urgent need to educate the public on the subject.
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Affiliation(s)
- Joshua Owolabi
- Anatomy/Neuroscience, Babcock University, Ilishan-Remo, NGA.,Anatomy/Neuroscience, University of Global Health Equity, Kigali, RWA
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Hinrikus H, Lass J, Bachmann M. Threshold of radiofrequency electromagnetic field effect on human brain. Int J Radiat Biol 2021; 97:1505-1515. [PMID: 34402382 DOI: 10.1080/09553002.2021.1969055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE This review aims to estimate the threshold of radiofrequency electromagnetic field (RF EMF) effects on human brain based on analyses of published research results. To clarify the threshold of the RF EMF effects, two approaches have been applied: (1) the analyses of restrictions in sensitivity for different steps of the physical model of low-level RF EMF mechanism and (2) the analyses of experimental data to clarify the dependence of the RF EMF effect on exposure level based on the results of published original neurophysiological and behavioral human studies for 15 years 2007-2021. CONCLUSIONS The analyses of the physical model of nonthermal mechanisms of RF EMF effect leads to conclusion that no principal threshold of the effect can be determined. According to the review of experimental data, the rate of detected RF EMF effects is 76.7% in resting EEG studies, 41.7% in sleep EEG and 38.5% in behavioral studies. The changes in EEG probably appear earlier than alterations in behavior become evident. The lowest level of RF EMF at which the effect in EEG was detected is 2.45 V/m (SAR = 0.003 W/kg). There is a preliminary indication that the dependence of the effect on the level of exposure follows rather field strength than SAR alterations. However, no sufficient data are available for clarifying linearity-nonlinearity of the dependence of effect on the level of RF EMF. The finding that only part of people are sensitive to RF EMF exposure can be related to immunity to radiation or hypersensitivity. The changes in EEG caused by RF EMF appeared similar in the majority of analyzed studies and similar to these in depression. The possible causal relationship between RF EMF effect and depression among young people is highly important problem.
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Affiliation(s)
| | - Jaanus Lass
- Tallinn University of Technology, Tallinn, Estonia
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Ghavamabadi L, Dehaghi B, Ghamar A, Latifi S. Exposure to electromagnetic fields and users' health. INTERNATIONAL ARCHIVES OF HEALTH SCIENCES 2021. [DOI: 10.4103/iahs.iahs_181_21] [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] Open
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Eggert T, Dorn H, Sauter C, Schmid G, Danker-Hopfe H. RF-EMF exposure effects on sleep - Age doesn't matter in men! ENVIRONMENTAL RESEARCH 2020; 191:110173. [PMID: 32931791 DOI: 10.1016/j.envres.2020.110173] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Although there are several human experimental studies on short-term effects of radiofrequency electromagnetic fields (RF-EMF) on sleep, the role of effect modification by sex or age in this context has not yet been considered. In an earlier study, we observed sex differences in RF-EMF effects in elderly subjects. The present study investigated possible RF-EMF effect modifications by age in men. METHODS Data available for the present analysis come from three double-blind, randomized cross-over studies, in which effects of different RF-EMF exposure signals on sleep were investigated in young [sample 1: 25.3 (mean) ± 2.6 (SD) years; sample 2: 25.4 ± 2.6 years; n = 30, respectively] and older (69.1 ± 5.5 years; n = 30) healthy male volunteers. Studies comprised a screening/adaptation night followed by nine experimental nights at two-week intervals. RF-EMF exposure effect modifications by age were analysed for two different exposure signals (GSM900 at 2 W/kg, TETRA at 6 W/kg), each compared to a sham exposure. Polysomnography, during which the exposure signals were delivered by a head worn antenna, as well as sleep staging were performed according to the AASM standard. Four subjective and 30 objective sleep parameters were statistically analysed related to possible RF-EMF effects. RESULTS Comparisons of sleep parameters observed under sham exposure revealed highly pronounced physiological differences between young and elderly men. A consistent exposure effect in both age groups was found for a shorter latency to persistent sleep under TETRA exposure reflecting a sleep-promoting effect. Exposure effect modifications by age were observed for two of the four self-reported sleep parameters following GSM900 exposure and for arousals during REM sleep under TETRA exposure. CONCLUSIONS As effects of a short-term all-night RF-EMF exposure on sleep occurred only sporadically in young and elderly men, it seems that age doesn't matter in this respect. However, as long as there are no corresponding data from young healthy women that would allow a comparison with the data from elderly women, this assumption cannot be conclusively verified. Nevertheless, the present results are not indicative of any adverse health effects.
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Affiliation(s)
- Torsten Eggert
- Charité - Universitätsmedizin Berlin, Corporate Member of the Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Competence Centre for Sleep Medicine, at the Campus Benjamin Franklin, 12200, Berlin, Germany
| | - Hans Dorn
- Charité - Universitätsmedizin Berlin, Corporate Member of the Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Competence Centre for Sleep Medicine, at the Campus Benjamin Franklin, 12200, Berlin, Germany
| | - Cornelia Sauter
- Charité - Universitätsmedizin Berlin, Corporate Member of the Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Competence Centre for Sleep Medicine, at the Campus Benjamin Franklin, 12200, Berlin, Germany
| | - Gernot Schmid
- Seibersdorf Laboratories, 2444, Seibersdorf, Austria
| | - Heidi Danker-Hopfe
- Charité - Universitätsmedizin Berlin, Corporate Member of the Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Competence Centre for Sleep Medicine, at the Campus Benjamin Franklin, 12200, Berlin, Germany.
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Bueno-Lopez A, Eggert T, Dorn H, Schmid G, Hirtl R, Danker-Hopfe H. Effects of 2.45 GHz Wi-Fi exposure on sleep-dependent memory consolidation. J Sleep Res 2020; 30:e13224. [PMID: 33166026 DOI: 10.1111/jsr.13224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 10/07/2020] [Accepted: 10/07/2020] [Indexed: 12/24/2022]
Abstract
Studies have reported that exposure to radiofrequency electromagnetic fields (RF-EMF) emitted by mobile telephony might affect specific sleep features. Possible effects of RF-EMF emitted by Wi-Fi networks on sleep-dependent memory consolidation processes have not been investigated so far. The present study explored the impact of an all-night Wi-Fi (2.45 GHz) exposure on sleep-dependent memory consolidation and its associated physiological correlates. Thirty young males (mean ± standard deviation [SD]: 24.1 ± 2.9 years) participated in this double-blind, randomized, sham-controlled crossover study. Participants spent five nights in the laboratory. The first night was an adaptation/screening night. The second and fourth nights were baseline nights, each followed consecutively by an experimental night with either Wi-Fi (maximum: psSAR10g = <25 mW/kg; 6 min average: <6.4 mW/kg) or sham exposure. Declarative, emotional and procedural memory performances were measured using a word pair, a sequential finger tapping and a face recognition task, respectively. Furthermore, learning-associated brain activity parameters (power spectra for slow oscillations and in the spindle frequency range) were analysed. Although emotional and procedural memory were not affected by RF-EMF exposure, overnight improvement in the declarative task was significantly better in the Wi-Fi condition. However, none of the post-learning sleep-specific parameters was affected by exposure. Thus, the significant effect of Wi-Fi exposure on declarative memory observed at the behavioural level was not supported by results at the physiological level. Due to these inconsistencies, this result could also be a random finding.
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Affiliation(s)
- Ana Bueno-Lopez
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Competence Center of Sleep Medicine, Berlin Institute of Health, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Torsten Eggert
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Competence Center of Sleep Medicine, Berlin Institute of Health, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Hans Dorn
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Competence Center of Sleep Medicine, Berlin Institute of Health, Humboldt-Universität zu Berlin, Berlin, Germany
| | | | - Rene Hirtl
- Seibersdorf Laboratories, Seibersdorf, Austria
| | - Heidi Danker-Hopfe
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Competence Center of Sleep Medicine, Berlin Institute of Health, Humboldt-Universität zu Berlin, Berlin, Germany
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Danker-Hopfe H, Bueno-Lopez A, Dorn H, Schmid G, Hirtl R, Eggert T. Spending the night next to a router – Results from the first human experimental study investigating the impact of Wi-Fi exposure on sleep. Int J Hyg Environ Health 2020; 228:113550. [DOI: 10.1016/j.ijheh.2020.113550] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/28/2020] [Accepted: 04/28/2020] [Indexed: 01/24/2023]
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Tettamanti G, Auvinen A, Åkerstedt T, Kojo K, Ahlbom A, Heinävaara S, Elliott P, Schüz J, Deltour I, Kromhout H, Toledano MB, Poulsen AH, Johansen C, Vermeulen R, Feychting M, Hillert L. Long-term effect of mobile phone use on sleep quality: Results from the cohort study of mobile phone use and health (COSMOS). ENVIRONMENT INTERNATIONAL 2020; 140:105687. [PMID: 32276731 PMCID: PMC7272128 DOI: 10.1016/j.envint.2020.105687] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 03/19/2020] [Accepted: 03/23/2020] [Indexed: 05/19/2023]
Abstract
BACKGROUND Effects of radiofrequency electromagnetic field exposure (RF-EMF) from mobile phone use on sleep quality has mainly been investigated in cross-sectional studies. The few previous prospective cohort studies found no or inconsistent associations, but had limited statistical power and short follow-up. In this large prospective cohort study, our aim was to estimate the effect of RF-EMF from mobile phone use on different sleep outcomes. MATERIALS AND METHODS The study included Swedish (n = 21,049) and Finnish (n = 3120) participants enrolled in the Cohort Study of Mobile Phone Use and Health (COSMOS) with information about operator-recorded mobile phone use at baseline and sleep outcomes both at baseline and at the 4-year follow-up. Sleep disturbance, sleep adequacy, daytime somnolence, sleep latency, and insomnia were assessed using the Medical Outcome Study (MOS) sleep questionnaire. RESULTS Operator-recorded mobile phone use at baseline was not associated with most of the sleep outcomes. For insomnia, an odds ratio (OR) of 1.24, 95% CI 1.03-1.51 was observed in the highest decile of mobile phone call-time (>258 min/week). With weights assigned to call-time to account for the lower RF-EMF exposure from Universal Mobile Telecommunications Service (UMTS, 3G) than from Global System for Mobile Communications (GSM, 2G) the OR was 1.09 (95% CI 0.89-1.33) in the highest call-time decile. CONCLUSION Insomnia was slightly more common among mobile phone users in the highest call-time category, but adjustment for the considerably lower RF-EMF exposure from the UMTS than the GSM network suggests that this association is likely due to other factors associated with mobile phone use than RF-EMF. No association was observed for other sleep outcomes. In conclusion, findings from this study do not support the hypothesis that RF-EMF from mobile phone use has long-term effects on sleep quality.
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Affiliation(s)
- Giorgio Tettamanti
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anssi Auvinen
- STUK - Radiation and Nuclear Safety Authority, Environmental Radiation Surveillance and Emergency Preparedness, Helsinki, Finland; Tampere University, Faculty of Social Sciences/Health Sciences, Tampere, Finland
| | - Torbjörn Åkerstedt
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; Department of Stress Research, Stockholm University, Stockholm, Sweden
| | - Katja Kojo
- STUK - Radiation and Nuclear Safety Authority, Environmental Radiation Surveillance and Emergency Preparedness, Helsinki, Finland
| | - Anders Ahlbom
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Sirpa Heinävaara
- STUK - Radiation and Nuclear Safety Authority, Environmental Radiation Surveillance and Emergency Preparedness, Helsinki, Finland; Finnish Cancer Registry, Helsinki, Finland
| | - Paul Elliott
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK; Medical Research Council (MRC) Centre for Environment and Health, School of Public Health, Imperial College London, London, UK; National Institute for Health Research (NIHR) Health Protection Research Unit on Health Impact of Environmental Hazards, Imperial College London, London, UK; NIHR Imperial Biomedical Research Centre, Imperial College London, London, UK
| | - Joachim Schüz
- International Agency for Research on Cancer, Environment and Radiation Section, Lyon, France
| | - Isabelle Deltour
- International Agency for Research on Cancer, Environment and Radiation Section, Lyon, France
| | - Hans Kromhout
- University of Utrecht, Institute for Risk Assessment Sciences, Utrecht, the Netherlands
| | - Mireille B Toledano
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK; Medical Research Council (MRC) Centre for Environment and Health, School of Public Health, Imperial College London, London, UK; National Institute for Health Research (NIHR) Health Protection Research Unit on Health Impact of Environmental Hazards, Imperial College London, London, UK
| | | | - Christoffer Johansen
- Danish Cancer Society Research Center, Copenhagen, Denmark; CASTLE Cancer Late Effect Research Oncology Clinic, Center for Surgery and Cancer, Rigshospitalet, Copenhagen, Denmark
| | - Roel Vermeulen
- University of Utrecht, Institute for Risk Assessment Sciences, Utrecht, the Netherlands
| | - Maria Feychting
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Lena Hillert
- Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden; Unit of Occupational Medicine, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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Danker-Hopfe H, Dorn H, Sauter C, Schmid G, Eggert T. An experimental study on effects of radiofrequency electromagnetic fields on sleep in healthy elderly males and females: Gender matters! ENVIRONMENTAL RESEARCH 2020; 183:109181. [PMID: 32014649 DOI: 10.1016/j.envres.2020.109181] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/15/2020] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Results from human experimental studies investigating possible effects of radiofrequency electromagnetic fields (RF-EMF) on sleep are heterogeneous. So far, there is no study on possible sex-differences in RF-EMF effects. OBJECTIVES The present study aimed at analyzing differences in RF-EMF effects on the macrostructure of sleep between healthy elderly males and females. METHODS With a double-blind, randomized, sham-controlled cross-over design effects of two RF-EMF exposures (GSM900 and TETRA) on sleep were investigated in samples of 30 elderly healthy male and 30 healthy elderly female volunteers. Participants underwent each of the three exposure conditions on three occassions following an individually randomized order resulting in a total of nine study nights per participant. Exposure was delivered for 30 min prior to sleep and for the whole night (7.5 h) by a head worn antenna specifically designed for the projects. The peak spatial absorption rate averaged over time in head tissues (psSAR10g) was 6 W/kg for TETRA and 2 W/kg for GSM900. Thirty variables characterising the macrostructure of sleep and arousals as well as four subjective sleep variables were considered for statistical analyses. RESULTS Multivariate analyses revealed that exposure to GSM900 and/or TETRA resulted in a significant reduction in arousals, a shorter latency to sleep stage N3, and a shorter self-reported time awake after sleep in both males and females. Exposure effects depending on sex (significant interactions) were observed. Latency to sleep stage R was shorter in females and tended to be longer in males under both exposures. Latency to stage N3 was shorter in females under TETRA exposure and almost not affected in males. The time awake within the sleep period under TETRA exposure was shorter in females and only slightly longer in males. Under GSM exposure, the self-rated total sleep time tended to be longer in females and to be shorter in males. Finally, the number of awakenings was lower only in females and tended to be higher in males under GSM exposure. DISCUSSION With regard to RF-EMF effects on human sleep it seems that gender matters since GSM900 and TETRA led to significantly more exposure effects in females. Regardless of gender, none of the observed changes is indicative of a sleep disturbing effect of RF-EMF exposure. Observed effects might be mediated by skin related thermoregulatory mechanisms.
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Affiliation(s)
- Heidi Danker-Hopfe
- Charité - Universitätsmedizin Berlin, Corporate Member of the Freie Universität Berlin, Humboldt Universität zu Berlin, And Berlin Institute of Health, Competence Centre for Sleep Medicine, At the Campus Benjamin Franklin, 12200, Berlin, Germany.
| | - Hans Dorn
- Charité - Universitätsmedizin Berlin, Corporate Member of the Freie Universität Berlin, Humboldt Universität zu Berlin, And Berlin Institute of Health, Competence Centre for Sleep Medicine, At the Campus Benjamin Franklin, 12200, Berlin, Germany
| | - Cornelia Sauter
- Charité - Universitätsmedizin Berlin, Corporate Member of the Freie Universität Berlin, Humboldt Universität zu Berlin, And Berlin Institute of Health, Competence Centre for Sleep Medicine, At the Campus Benjamin Franklin, 12200, Berlin, Germany
| | - Gernot Schmid
- Seibersdorf Laboratories, 2444, Seibersdorf, Austria
| | - Torsten Eggert
- Charité - Universitätsmedizin Berlin, Corporate Member of the Freie Universität Berlin, Humboldt Universität zu Berlin, And Berlin Institute of Health, Competence Centre for Sleep Medicine, At the Campus Benjamin Franklin, 12200, Berlin, Germany
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Schmid G, Hirtl R, Bueno‐Lopez A, Dorn H, Eggert T, Danker‐Hopfe H. Design and Dosimetric Analysis of an Exposure Facility for Investigating Possible Effects of 2.45 GHz Wi‐Fi Signals on Human Sleep. Bioelectromagnetics 2020; 41:230-240. [DOI: 10.1002/bem.22256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 02/12/2020] [Indexed: 01/20/2023]
Affiliation(s)
| | - Rene Hirtl
- Seibersdorf Laboratories Seibersdorf Austria
| | - Ana Bueno‐Lopez
- Competence Center of Sleep MedicineCharité‐Universitaetsmedizin Berlin Germany
| | - Hans Dorn
- Competence Center of Sleep MedicineCharité‐Universitaetsmedizin Berlin Germany
| | - Torsten Eggert
- Competence Center of Sleep MedicineCharité‐Universitaetsmedizin Berlin Germany
| | - Heidi Danker‐Hopfe
- Competence Center of Sleep MedicineCharité‐Universitaetsmedizin Berlin Germany
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Lowden A, Nagai R, Åkerstedt T, Hansson Mild K, Hillert L. Effects of evening exposure to electromagnetic fields emitted by 3G mobile phones on health and night sleep EEG architecture. J Sleep Res 2019; 28:e12813. [DOI: 10.1111/jsr.12813] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/06/2018] [Accepted: 11/14/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Arne Lowden
- Stress Research Institute; Stockholm University; Stockholm Sweden
| | - Roberta Nagai
- Stress Research Institute; Stockholm University; Stockholm Sweden
| | - Torbjörn Åkerstedt
- Stress Research Institute; Stockholm University; Stockholm Sweden
- Department of Clinical Neuroscience; Division of Psychology; Karolinska Institutet; Stockholm Sweden
| | - Kjell Hansson Mild
- Department of Radiation Sciences; Radiation Physics; Umeå University; Umeå Sweden
| | - Lena Hillert
- Institute of Environmental Medicine; Karolinska Institutet; Stockholm Sweden
- Centre for Occupational and Environmental Medicine; Stockholm County Council; Stockholm Sweden
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13
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Eggert T, Sauter C, Dorn H, Peter A, Hansen ML, Danker-Hopfe H. Inter- and intraindividual variability of the pupillary unrest index. SOMNOLOGIE 2017. [DOI: 10.1007/s11818-017-0128-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Danker-Hopfe H, Dorn H, Bolz T, Peter A, Hansen ML, Eggert T, Sauter C. Effects of mobile phone exposure (GSM 900 and WCDMA/UMTS) on polysomnography based sleep quality: An intra- and inter-individual perspective. ENVIRONMENTAL RESEARCH 2016; 145:50-60. [PMID: 26618505 DOI: 10.1016/j.envres.2015.11.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 11/10/2015] [Accepted: 11/11/2015] [Indexed: 05/21/2023]
Abstract
BACKGROUND Studies on effects of radio frequency-electromagnetic fields (RF-EMF) on the macrostructure of sleep so far yielded inconsistent results. This study investigated whether possible effects of RF-EMF exposure differ between individuals. OBJECTIVE In a double-blind, randomized, sham-controlled cross-over study possible effects of electromagnetic fields emitted by pulsed Global System for Mobile Communications (GSM) 900 and Wideband Code-Division Multiple Access (WCDMA)/Universal Mobile Telecommunications System (WCDMA/UMTS) devices on sleep were analysed. METHODS Thirty healthy young men (range 18-30 years) were exposed three times per exposure condition while their sleep was recorded. Sleep was evaluated according to the American Academy of Sleep Medicine standard and eight basic sleep variables were considered. RESULTS Data analyses at the individual level indicate that RF-EMF effects are observed in 90% of the individuals and that all sleep variables are affected in at least four subjects. While sleep of participants was affected in various numbers, combinations of sleep variables and in different directions, showing improvements but also deteriorations, the only consistent finding was an increase of stage R sleep under GSM 900MHz exposure (9 of 30 subjects) as well as under WCDMA/UMTS exposure (10 of 30 subjects). CONCLUSIONS The results underline that sleep of individuals can be affected differently. The observations found here may indicate an underlying thermal mechanism of RF-EMF on human REM sleep. Nevertheless, the effect of an increase in stage R sleep in one third of the individuals does not necessarily indicate a disturbance of sleep.
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Affiliation(s)
- Heidi Danker-Hopfe
- Competence Center of Sleep Medicine and Sleep Research, Department of Psychiatry and Psychotherapy, Charité - Universitaetsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12200 Berlin, Germany.
| | - Hans Dorn
- Competence Center of Sleep Medicine and Sleep Research, Department of Psychiatry and Psychotherapy, Charité - Universitaetsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12200 Berlin, Germany.
| | - Thomas Bolz
- Institute of Mobile and Satellite communication Technology GmbH, Carl-Friedrich-Gauß-Straße 2, 47475 Kamp-Lintfort, Germany.
| | - Anita Peter
- Competence Center of Sleep Medicine and Sleep Research, Department of Psychiatry and Psychotherapy, Charité - Universitaetsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12200 Berlin, Germany.
| | - Marie-Luise Hansen
- Competence Center of Sleep Medicine and Sleep Research, Department of Psychiatry and Psychotherapy, Charité - Universitaetsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12200 Berlin, Germany.
| | - Torsten Eggert
- Competence Center of Sleep Medicine and Sleep Research, Department of Psychiatry and Psychotherapy, Charité - Universitaetsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12200 Berlin, Germany.
| | - Cornelia Sauter
- Competence Center of Sleep Medicine and Sleep Research, Department of Psychiatry and Psychotherapy, Charité - Universitaetsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12200 Berlin, Germany.
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15
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Krone L, Frase L, Piosczyk H, Selhausen P, Zittel S, Jahn F, Kuhn M, Feige B, Mainberger F, Klöppel S, Riemann D, Spiegelhalder K, Baglioni C, Sterr A, Nissen C. Top-down control of arousal and sleep: Fundamentals and clinical implications. Sleep Med Rev 2016; 31:17-24. [PMID: 26883160 DOI: 10.1016/j.smrv.2015.12.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 12/14/2015] [Accepted: 12/15/2015] [Indexed: 01/07/2023]
Abstract
Mammalian sleep emerges from attenuated activity in the ascending reticular arousal system (ARAS), the main arousal network of the brain. This system originates in the brainstem and activates the thalamus and cortex during wakefulness via a well-characterized 'bottom-up' pathway. Recent studies propose that a less investigated cortico-thalamic 'top-down' pathway also regulates sleep. The present work integrates the current evidence on sleep regulation with a focus on the 'top-down' pathway and explores the potential to translate this information into clinically relevant interventions. Specifically, we elaborate the concept that arousal and sleep continuity in humans can be modulated by non-invasive brain stimulation (NIBS) techniques that increase or decrease cortical excitability. Based on preclinical studies, the modulatory effects of the stimulation are thought to extend to subcortical arousal networks. Further exploration of the 'top-down' regulation of sleep and its modulation through non-invasive brain stimulation techniques may contribute to the development of novel treatments for clinical conditions of disrupted arousal and sleep, which are among the major health problems worldwide.
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Affiliation(s)
- Lukas Krone
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center, Germany; Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | - Lukas Frase
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center, Germany; Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | - Hannah Piosczyk
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center, Germany; Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | - Peter Selhausen
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center, Germany; Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | - Sulamith Zittel
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center, Germany; Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | - Friederike Jahn
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center, Germany; Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | - Marion Kuhn
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center, Germany; Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | - Bernd Feige
- Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | - Florian Mainberger
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center, Germany
| | - Stefan Klöppel
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center, Germany
| | - Dieter Riemann
- Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | - Kai Spiegelhalder
- Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | - Chiara Baglioni
- Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany
| | | | - Christoph Nissen
- Department of Psychiatry and Psychotherapy, University of Freiburg Medical Center, Germany; Department of Clinical Psychology and Psychophysiology/ Sleep Medicine, University of Freiburg Medical Center, Germany.
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16
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Huss A, van Eijsden M, Guxens M, Beekhuizen J, van Strien R, Kromhout H, Vrijkotte T, Vermeulen R. Environmental Radiofrequency Electromagnetic Fields Exposure at Home, Mobile and Cordless Phone Use, and Sleep Problems in 7-Year-Old Children. PLoS One 2015; 10:e0139869. [PMID: 26509676 PMCID: PMC4625083 DOI: 10.1371/journal.pone.0139869] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 09/16/2015] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND We evaluated if exposure to RF-EMF was associated with reported quality of sleep in 2,361 children, aged 7 years. METHODS This study was embedded in the Amsterdam Born Children and their Development (ABCD) birth cohort study. When children were about five years old, school and residential exposure to RF-EMF from base stations was assessed with a geospatial model (NISMap) and from indoor sources (cordless phone/WiFi) using parental self-reports. Parents also reported their children's use of mobile or cordless phones. When children were seven years old, we evaluated sleep quality as measured with the Child Sleep Habits Questionnaire (CSHQ) filled in by parents. Of eight CSHQ subscales, we evaluated sleep onset delay, sleep duration, night wakenings, parasomnias and daytime sleepiness with logistic or negative binomial regression models, adjusting for child's age and sex and indicators of socio-economic position of the parents. We evaluated the remaining three subscales (bedtime resistance, sleep anxiety, sleep disordered breathing) as unrelated outcomes (negative control) because these were a priori hypothesised not to be associated with RF-EMF. RESULTS Sleep onset delay, night wakenings, parasomnias and daytime sleepiness were not associated with residential exposure to RF-EMF from base stations. Sleep duration scores were associated with RF-EMF levels from base stations. Higher use mobile phones was associated with less favourable sleep duration, night wakenings and parasomnias, and also with bedtime resistance. Cordless phone use was not related to any of the sleeping scores. CONCLUSION Given the different results across the evaluated RF-EMF exposure sources and the observed association between mobile phone use and the negative control sleep scale, our study does not support the hypothesis that it is the exposure to RF-EMF that is detrimental to sleep quality in 7-year old children, but potentially other factors that are related to mobile phone usage.
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Affiliation(s)
- Anke Huss
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
- Institute for Social and Preventive Medicine, Bern, Switzerland
| | - Manon van Eijsden
- Department of Epidemiology, Documentation and Health Promotion, Public Health Service of Amsterdam (GGD), Amsterdam, The Netherlands
| | - Monica Guxens
- Center for Research in Environmental Epidemiology, Barcelona, Spain
| | - Johan Beekhuizen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Rob van Strien
- Department of Environmental Health, Public Health Service of Amsterdam (GGD), Amsterdam, The Netherlands
| | - Hans Kromhout
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Tania Vrijkotte
- Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Roel Vermeulen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
- Julius Centre for Public Health Sciences and Primary Care, University Medical Centre, Utrecht, The Netherlands
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17
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Youngstedt SD, Goff EE, Reynolds AM, Kripke DF, Irwin MR, Bootzin RR, Khan N, Jean-Louis G. Has adult sleep duration declined over the last 50+ years? Sleep Med Rev 2015; 28:69-85. [PMID: 26478985 DOI: 10.1016/j.smrv.2015.08.004] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 08/09/2015] [Accepted: 08/13/2015] [Indexed: 01/01/2023]
Abstract
The common assumption that population sleep duration has declined in the past few decades has not been supported by recent reviews, which have been limited to self-reported data. The aim of this review was to assess whether there has been a reduction in objectively recorded sleep duration over the last 50+ years. The literature was searched for studies published from 1960 to 2013, which assessed objective sleep duration (total sleep time (TST)) in healthy normal-sleeping adults. The search found 168 studies that met inclusion criteria, with 257 data points representing 6052 individuals ages 18-88 y. Data were assessed by comparing the regression lines of age vs. TST in studies conducted between 1960 and 1989 vs. 1990-2013. Weighted regression analyses assessed the association of year of study with age-adjusted TST across all data points. Regression analyses also assessed the association of year of study with TST separately for 10-y age categories (e.g., ages 18-27 y), and separately for polysomnographic and actigraphic data, and for studies involving a fixed sleep schedule and participants' customary sleep schedules. Analyses revealed no significant association of sleep duration with study year. The results are consistent with recent reviews of subjective data, which have challenged the notion of a modern epidemic of insufficient sleep.
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Affiliation(s)
- Shawn D Youngstedt
- College of Nursing and Health Innovation, College of Health Solutions, Arizona State University, Phoenix, AZ, USA.
| | - Eric E Goff
- Department of Biological Sciences, University of South Carolina, USA
| | | | - Daniel F Kripke
- Scripps Clinic Viterbi Family Sleep Center, La Jolla, CA, USA
| | - Michael R Irwin
- Cousins Center for Psychoneuorimmunology, Semel Institute for Neuroscience, University of California, Los Angeles, USA
| | | | - Nidha Khan
- Department of Exercise Science, University of South Carolina, USA
| | - Girardin Jean-Louis
- Center for Healthful Behavior Change, Department of Population Health, NYU School of Medicine, USA
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18
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Radiofréquences et santé. ARCH MAL PROF ENVIRO 2015. [DOI: 10.1016/j.admp.2015.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Lustenberger C, Murbach M, Tüshaus L, Wehrle F, Kuster N, Achermann P, Huber R. Inter-individual and intra-individual variation of the effects of pulsed RF EMF exposure on the human sleep EEG. Bioelectromagnetics 2015; 36:169-77. [DOI: 10.1002/bem.21893] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 11/23/2014] [Indexed: 01/29/2023]
Affiliation(s)
- Caroline Lustenberger
- Child Development Center; University Children's Hospital Zurich; Zurich Switzerland
- Neuroscience Center Zurich; University and ETH Zurich; Zurich Switzerland
| | - Manuel Murbach
- IT'IS Foundation; Zurich Switzerland
- Swiss Federal Institute of Technology (ETH); Zurich Switzerland
| | - Laura Tüshaus
- Institute of Pharmacology and Toxicology; University of Zurich; Zurich Switzerland
- Neuroscience Center Zurich; University and ETH Zurich; Zurich Switzerland
| | - Flavia Wehrle
- Division of Neonatology; University Hospital Zurich; Zurich Switzerland
- Zurich Center for Integrative Human Physiology; University of Zurich; Zurich Switzerland
| | - Niels Kuster
- IT'IS Foundation; Zurich Switzerland
- Swiss Federal Institute of Technology (ETH); Zurich Switzerland
| | - Peter Achermann
- Institute of Pharmacology and Toxicology; University of Zurich; Zurich Switzerland
- Neuroscience Center Zurich; University and ETH Zurich; Zurich Switzerland
- Zurich Center for Integrative Human Physiology; University of Zurich; Zurich Switzerland
| | - Reto Huber
- Child Development Center; University Children's Hospital Zurich; Zurich Switzerland
- Neuroscience Center Zurich; University and ETH Zurich; Zurich Switzerland
- Zurich Center for Integrative Human Physiology; University of Zurich; Zurich Switzerland
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20
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Dorn H, Schmid G, Eggert T, Sauter C, Bolz T, Danker-Hopfe H. Experimental investigation of possible warmth perception from a head exposure system for human provocation studies with TETRA handset-like signals. Bioelectromagnetics 2014; 35:452-8. [DOI: 10.1002/bem.21866] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 04/29/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Hans Dorn
- Competence Centre of Sleep Medicine; Charité-University Medicine Berlin; Berlin Germany
| | | | - Torsten Eggert
- Competence Centre of Sleep Medicine; Charité-University Medicine Berlin; Berlin Germany
| | - Cornelia Sauter
- Competence Centre of Sleep Medicine; Charité-University Medicine Berlin; Berlin Germany
| | - Thomas Bolz
- Institute of Mobile and Satellite Communication Technology; Kamp-Lintfort Germany
| | - Heidi Danker-Hopfe
- Competence Centre of Sleep Medicine; Charité-University Medicine Berlin; Berlin Germany
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21
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Nakatani-Enomoto S, Furubayashi T, Ushiyama A, Groiss SJ, Ueshima K, Sokejima S, Simba AY, Wake K, Watanabe SI, Nishikawa M, Miyawaki K, Taki M, Ugawa Y. Effects of electromagnetic fields emitted from W-CDMA-like mobile phones on sleep in humans. Bioelectromagnetics 2013; 34:589-98. [DOI: 10.1002/bem.21809] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Accepted: 07/06/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Setsu Nakatani-Enomoto
- Department of Neurology; School of Medicine; Fukushima Medical University; Fukushima Japan
| | - Toshiaki Furubayashi
- Department of Neurology; School of Medicine; Fukushima Medical University; Fukushima Japan
- Department of Health and Social Services; Tohoku Bunka Gakuen University; Miyagi Japan
| | - Akira Ushiyama
- Department of Environmental Health; National Institute of Public Health; Saitama Japan
| | - Stefan Jun Groiss
- Department of Neurology; School of Medicine; Fukushima Medical University; Fukushima Japan
| | - Kazumune Ueshima
- Department of Public Health and Occupational Medicine; Mie University Graduate School of Medicine; Mie Japan
| | - Shigeru Sokejima
- Department of Public Health and Occupational Medicine; Mie University Graduate School of Medicine; Mie Japan
| | - Ally Y. Simba
- EMC Group; Applied Electromagnetic Research Center; National Institute of Information and Communications Technology; Tokyo Japan
| | - Kanako Wake
- EMC Group; Applied Electromagnetic Research Center; National Institute of Information and Communications Technology; Tokyo Japan
| | - So-ichi Watanabe
- EMC Group; Applied Electromagnetic Research Center; National Institute of Information and Communications Technology; Tokyo Japan
| | - Masami Nishikawa
- Department of Education; Kawamura Gakuen Woman's University; Chiba Japan
| | - Kaori Miyawaki
- Faculty of Letters; Arts and Sciences; Waseda University; Tokyo Japan
| | - Masao Taki
- Department of Electrical and Electronic Engineering; Graduate School of Science and Engineering; Tokyo Metropolitan University; Tokyo Japan
| | - Yoshikazu Ugawa
- Department of Neurology; School of Medicine; Fukushima Medical University; Fukushima Japan
- Japan Science and Technology Agency; Research Seeds Quest Program; Fukushima Japan
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Kesari KK, Meena R, Nirala J, Kumar J, Verma HN. Effect of 3G Cell Phone Exposure with Computer Controlled 2-D Stepper Motor on Non-thermal Activation of the hsp27/p38MAPK Stress Pathway in Rat Brain. Cell Biochem Biophys 2013; 68:347-58. [DOI: 10.1007/s12013-013-9715-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Schmid G, Bolz T, Überbacher R, Escorihuela-Navarro A, Bahr A, Dorn H, Sauter C, Eggert T, Danker-Hopfe H. Design and dosimetric analysis of a 385 MHz TETRA head exposure system for use in human provocation studies. Bioelectromagnetics 2012; 33:594-603. [DOI: 10.1002/bem.21727] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Accepted: 03/20/2012] [Indexed: 11/07/2022]
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