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Cordelli E, Ardoino L, Benassi B, Consales C, Eleuteri P, Marino C, Sciortino M, Villani P, H Brinkworth M, Chen G, P McNamee J, Wood AW, Belackova L, Verbeek J, Pacchierotti F. Effects of radiofrequency electromagnetic field (RF-EMF) exposure on male fertility: A systematic review of experimental studies on non-human mammals and human sperm in vitro. Environ Int 2024; 185:108509. [PMID: 38492496 DOI: 10.1016/j.envint.2024.108509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 02/02/2024] [Accepted: 02/16/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND The World Health Organization is coordinating an international project aimed at systematically reviewing the evidence regarding the association between radiofrequency electromagnetic field (RF-EMF) exposure and adverse health effects. Reproductive health outcomes have been identified among the priority topics to be addressed. OBJECTIVES To evaluate the effect of RF-EMF exposure on male fertility of experimental mammals and on human sperm exposed in vitro. METHODS Three electronic databases (PubMed, Scopus and EMF Portal) were last searched on September 17, 2022. Two independent reviewers screened the studies, which were considered eligible if met the following criteria: 1) Peer-reviewed publications of sham controlled experimental studies, 2) Non-human male mammals exposed at any stage of development or human sperm exposed in vitro, 3) RF-EMF exposure within the frequency range of 100 kHz-300 GHz, including electromagnetic pulses (EMP), 4) one of the following indicators of reproductive system impairment:Two reviewers extracted study characteristics and outcome data. We assessed risk of bias (RoB) using the Office of Health Assessment and Translation (OHAT) guidelines. We categorized studies into 3 levels of overall RoB: low, some or high concern. We pooled study results in a random effects meta-analysis comparing average exposure to no-exposure and in a dose-response meta-analysis using all exposure doses. For experimental animal studies, we conducted subgroup analyses for species, Specific Absorption Rate (SAR) and temperature increase. We grouped studies on human sperm exposed in vitro by the fertility status of sample donors and SAR. We assessed the certainty of the evidence using the GRADE approach after excluding studies that were rated as "high concern" for RoB. RESULTS One-hundred and seventeen papers on animal studies and 10 papers on human sperm exposed in vitro were included in this review. Only few studies were rated as "low concern" because most studies were at RoB for exposure and/or outcome assessment. Subgrouping the experimental animal studies by species, SAR, and temperature increase partly accounted for the heterogeneity of individual studies in about one third of the meta-analyses. In no case was it possible to conduct a subgroup analysis of the few human sperm in vitro studies because there were always 1 or more groups including less than 3 studies. Among all the considered endpoints, the meta-analyses of animal studies provided evidence of adverse effects of RF-EMF exposure in all cases but the rate of infertile males and the size of the sired litters. The assessment of certainty according to the GRADE methodology assigned a moderate certainty to the reduction of pregnancy rate and to the evidence of no-effect on litter size, a low certainty to the reduction of sperm count, and a very low certainty to all the other meta-analysis results. Studies on human sperm exposed in vitro indicated a small detrimental effect of RF-EMF exposure on vitality and no-effect on DNA/chromatin alterations. According to GRADE, a very low certainty was attributed to these results. The few studies that used EMP exposure did not show effects on the outcomes. A low to very low certainty was attributed to these results. DISCUSSION Many of the studies examined suffered of severe limitations that led to the attribution of uncertainty to the results of the meta-analyses and did not allow to draw firm conclusions on most of the endpoints. Nevertheless, the associations between RF-EMF exposure and decrease of pregnancy rate and sperm count, to which moderate and low certainty were attributed, are not negligible, also in view of the indications that in Western countries human male fertility potential seems to be progressively declining. It was beyond the scope of our systematic review to determine the shape of the dose-response relationship or to identify a minimum effective exposure level. The subgroup and the dose-response fitting analyses did not show a consistent relationship between the exposure levels and the observed effects. Notably, most studies evaluated RF-EMF exposure levels that were higher than the levels to which human populations are typically exposed, and the limits set in international guidelines. For these reasons we cannot provide suggestions to confirm or reconsider current human exposure limits. Considering the outcomes of this systematic review and taking into account the limitations found in several of the studies, we suggest that further investigations with better characterization of exposure and dosimetry including several exposure levels and blinded outcome assessment were conducted. PROTOCOL REGISTRATION Protocols for the systematic reviews of animal studies and of human sperm in vitro studies were published in Pacchierotti et al., 2021. The former was also registered in PROSPERO (CRD42021227729 https://www.crd.york.ac.uk/prospero/display_record.php?RecordID = 227729) and the latter in Open Science Framework (OSF Registration DOI https://doi.org/10.17605/OSF.IO/7MUS3).
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Affiliation(s)
- Eugenia Cordelli
- Division Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy.
| | - Lucia Ardoino
- Division Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Barbara Benassi
- Division Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Claudia Consales
- Division Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Patrizia Eleuteri
- Division Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Carmela Marino
- Division Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | | | - Paola Villani
- Division Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Martin H Brinkworth
- School of Chemistry and Bioscience, Faculty of Life Sciences, University of Bradford, Bradford, UK
| | - Guangdi Chen
- Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou, China
| | - James P McNamee
- Non-Ionizing Radiation Health Sciences Division, Consumer and Clinical Radiation Protection Bureau, Health Canada, Ottawa, Canada
| | - Andrew W Wood
- Department of Health Sciences and Biostatistics, Swinburne University of Technology, Hawthorn, Australia
| | - Lea Belackova
- University Medical Centers Amsterdam, Coronel Institute of Occupational Health, Cochrane Work, Amsterdam, the Netherlands
| | - Jos Verbeek
- University Medical Centers Amsterdam, Coronel Institute of Occupational Health, Cochrane Work, Amsterdam, the Netherlands
| | - Francesca Pacchierotti
- Division Health Protection Technologies, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy.
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Şenol N, Şahin M, Şahin U. Protective effect of juglone on electric field-induced apoptosis and inflammation in liver and kidney tissue in rats. Res Vet Sci 2023; 164:104987. [PMID: 37659348 DOI: 10.1016/j.rvsc.2023.104987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 07/23/2023] [Accepted: 08/20/2023] [Indexed: 09/04/2023]
Abstract
Electric field (EF) has been shown to cause tissue damage mainly through oxidative stress, inflammation, and apoptosis. Thus, juglone (5-hydroxy-1,4-naphthoquinone) (JUG), which has antioxidant and antiapoptotic properties, is thought to be effective against electric field-induced damage. We aimed to investigate whether 50 Hz alternating current (AC) triggers inflammation and apoptosis in rat liver and kidney tissues and evaluate the JUG supplement's estimated protective effect. Twenty-four adult male wistar albino rats were divided into control, EF and EF + JUG groups, each containing eight rats. The EF and EF + JUG groups were exposed to EF while no EF exposure and JUG were applied to the control group. At the end of the experiment, liver and kidney tissues were collected for histological (H&E, caspase-3 and TNF-α for immunohistochemical staining), and genetics (SOCS, caspase-3 and TNF-α, PCR analyses). After routine histological procedures, sections stained with H&E showed significant changes in liver and kidney tissues in the EF group compared to the control group (p < 0.05). Significant protective effects were observed in the building volumes and histopathology in the EF + JUG group (p < 0.05). Our gene expression results increased the expression of caspase-3 and TNF-α in the EF group (p < 0.001). Juglone increased SOCS expression (p < 0.001). These findings were consistent with the anti-apoptotic and anti-inflammatory effects of JUG treatment. We reasoned that exposure to EF damaged rat liver and kidney tissues and administration of JUG alleviated the complications caused by 50 Hz EF.
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Affiliation(s)
- Nurgül Şenol
- Department of Nutrition and Dietetics, Faculty of Health Sciences, University of Süleyman Demirel, Isparta, Türkiye
| | - Melda Şahin
- Department of Bioengineering, Institute of Science, University of Süleyman Demirel, Isparta, Türkiye.
| | - Uğur Şahin
- Department of Chemistry, Faculty of Art and Science, University of Süleyman Demirel, Isparta, Türkiye; Genetic Research Unit, Innovative Technologies Application and Research Center, University of Süleyman Demirel, Isparta, Türkiye
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Pardhiya S, Gautam R, Nirala JP, Murmu NN, Rajamani P. Modulatory role of Bovine serum albumin conjugated manganese dioxide nanoparticle on microwave radiation induced alterations in reproductive parameters of rat. Reprod Toxicol 2022; 113:136-149. [PMID: 36089154 DOI: 10.1016/j.reprotox.2022.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/17/2022] [Accepted: 09/05/2022] [Indexed: 11/19/2022]
Abstract
In recent decades, microwave (MW) radiations are being used extensively for various applications such as Wi-Fi, telecommunication, etc. due to which there have been grave concerns regarding the adverse effects of MW exposure on human health, particularly the reproductive system. MW cause damage to the reproductive system by generating free radicals, decreasing antioxidant defence, and inducing oxidative stress. Hence, the present study was aimed to counteract the harmful effect by using antioxidant enzymes mimicking nanoparticle, Bovine serum albumin (BSA) conjugated manganese dioxide nanoparticle (MNP*). Male Wistar rats were exposed to MW and treated with MNP*, and their individual, as well as combined effect on reproductive parameters was investigated. Results showed that MW exposed rats had significantly reduced testosterone levels along with alterations in the testicular morphology. The antioxidant status decreased, and lipid peroxidation increased significantly in testis. MW exposure also showed altered sperm parameters such as a significant decrease in sperm count, viability, membrane integrity and mitochondrial activity with a significant increase in morphological abnormality and lipid peroxidation. As a result, the changes induced by MW may affect male fertility. However, upon combined exposure of MNP* and MW, these alterations were reduced significantly. Hence, it may be concluded that MNP* could reduce oxidative stress mediated damages in the reproductive system of rats owing to its antioxidant activity, and thus have a potential to act as a radioprotectant.
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Affiliation(s)
- Sonali Pardhiya
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Rohit Gautam
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Jay Prakash Nirala
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Nina Nancy Murmu
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Paulraj Rajamani
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
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Er H, Tas GG, Soygur B, Ozen S, Sati L. Acute and Chronic Exposure to 900 MHz Radio Frequency Radiation Activates p38/JNK-mediated MAPK Pathway in Rat Testis. Reprod Sci 2022; 29:1471-1485. [PMID: 35015292 DOI: 10.1007/s43032-022-00844-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 01/01/2022] [Indexed: 10/19/2022]
Abstract
The use of electronic devices such as mobile phones has had a long stretch of rapid growth all over the world. Therefore, exposure to radio frequency radiation (RFR) has increased enormously. Here, we aimed to assess the balance between cell death and proliferation and also investigate the involvement of the JNK/p38 MAPK signaling pathway in the testis of rats exposed to 900 MHz RFR in acute and chronic periods (2 h/day, 5 days/week) for 1 or 10 weeks, respectively. The expression of proliferating cell nuclear antigen (PCNA), Bcl-xL, cleaved caspase-3, phosphorylated-JNK (p-JNK), and phosphorylated-p38 (p-p38) was analyzed in line with histopathology and TUNEL analysis in rat testis. There were no histopathological differences between sham and RFR groups in the acute and chronic groups. PCNA expression was not altered between groups in both periods. However, alterations for cleaved caspase-3 and Bcl-xL were observed depending on the exposure period. TUNEL analysis showed a significant increase in the RFR group in the acute period, whereas no difference in the chronic groups for the apoptotic index was reported. In addition, both p-p38 and p-JNK protein expressions increased significantly in RFR groups in both periods. Our study indicated that 900 MHz RFR might result in alterations during acute period exposure for several parameters, but this can be ameliorated in the chronic period in rat testis. Here, we also report the involvement of the p38/JNK-mediated MAPK pathway after exposure to 900 MHz RFR. Hence, this information might shed light in future studies toward detailed molecular mechanisms in male reproduction and infertility.
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Affiliation(s)
- Hakan Er
- Department of Biophysics, Akdeniz University School of Medicine, Akdeniz University, Antalya, Turkey.,Department of Medical Imaging Techniques, Vocational School of Health Services, Akdeniz University, Antalya, Turkey
| | - Gizem Gamze Tas
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, 07070, Antalya, Turkey
| | - Bikem Soygur
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, 07070, Antalya, Turkey.,Department of Obstetrics, Gynecology and Reproductive Sciences, Center for Reproductive Sciences, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, CA, USA
| | - Sukru Ozen
- Department of Electrical and Electronics Engineering, Faculty of Engineering, Akdeniz University, Antalya, Turkey
| | - Leyla Sati
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, 07070, Antalya, Turkey.
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Akbari H, Khoramipour S, Eshagh Hossaini SK, Mafigholami R, Moradighiasabadi B. Effect of Base Transceiver Station (BTS) waves on some blood factors in domestic pigeons: an experimental study. J Environ Health Sci Eng 2021; 19:1827-1833. [PMID: 34900310 PMCID: PMC8617219 DOI: 10.1007/s40201-021-00738-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/04/2021] [Indexed: 06/14/2023]
Abstract
PURPOSE BTS waves are one of the most important environmental pollutants, but there is inadequate data of its effects on living creatures. Birds have major role in environmental balance and hematologic factors are good describers of animal health. Therefore, we studied hematological factors in pigeons to assess the health effects of BTS waves in urban birds. METHODS This experiment has been run on 120 six month-old pigeons. After adaptation to laboratory settings, they divided to six random groups of distance from BTS and daily exposure time. G1: 50 cm/30 min, G2: 100 cm/30 min daily, G3: 150 cm/30 min, G4: 50 cm/60 min, G5: 100 cm/60 min and G6: 150 cm/60 min. Daily exposure done for 30 consecutive days. Hematologic studies done before and after exposure for analysis of WBC, Neut, Mono, Lymph, RBC, Hb, HCT, MCV, MCHC and platelets. Results processed statistically by SPSS software. RESULTS The results of this study showed a significant difference between the six experimental groups. The results showed distance from the BTS source had the largest effect on PLT followed by HCT, MCV, MCHC, Neut, Hb, RBC, Lymph, WBC, and Mono, respectively. Moreover, the duration of exposure to BTS wave had the largest effect on Mono followed by PLT, Neut, MCV, MCHC, WBC, HCT, Lymph, RBC and Hb, respectively. CONCLUSIONS Study showed that increasing exposure time and decreasing distance from the wave source have significant effect on hematologic factors. The distance has more effect than exposure time. Further investigation on protection and reducing the side effects are recommended.
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Affiliation(s)
- Hesam Akbari
- West Tehran Branch, Department of Environmental Science and Engineering, Islamic Azad University, Tehran, Iran
| | - Sanaz Khoramipour
- West Tehran Branch, Department of Environmental Science and Engineering, Islamic Azad University, Tehran, Iran
| | - Seyed Kamal Eshagh Hossaini
- Department of Pediatrics, School of Medicine, Hazrat-E Fateme Masoume Hospital, Qom University of Medical Sciences, Qom, Iran
| | - Roya Mafigholami
- West Tehran Branch, Department of Environmental Science and Engineering, Islamic Azad University, Tehran, Iran
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Qin F, Cao H, Feng C, Zhu T, Zhu B, Zhang J, Tong J, Pei H. Microarray profiling of LncRNA expression in the testis of pubertal mice following morning and evening exposure to 1800 MHz radiofrequency fields. Chronobiol Int 2021; 38:1745-1760. [PMID: 34369206 DOI: 10.1080/07420528.2021.1962902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In this paper, the chronotoxicity of radiofrequency fields (RF) in the pubertal testis development and the involved molecular pathways were investigated by exposing four-week-old mice to RF (1800 MHz, SAR, 0.50 W/kg) in the morning and evening of each day for three weeks. Then, pathological changes and functional indices within the testis were determined. We also used a long non-coding RNA (lncRNA) microarray and GO/KEGG pathway analyses to determine lncRNA expression profiles and predict their potential functions. The cis and trans regulation of lncRNAs were investigated, and an interaction network was constructed using Cytoscape software. RF exposure led to a range of pathological changes in the testes of adolescent mice, as testicular weights and daily sperm productions decreased, and the testosterone secretion reduced. Furthermore, RF induced dysregulation in the expression of testicular lncRNAs. We identified 615 and 183 differentially expressed lncRNAs that were associated with morning and evening exposure to RF, respectively. From 15 differential expression lncRNAs both in morning RF group and evening RF group, we selected 6 lncRNAs to be validated by quantitative reverse transcription PCR (qRT-PCR). The differentially expressed lncRNAs induced by morning RF exposure were highly correlated with many different pathways, including Fanconi syndrome, metabolic processes, cell cycle, DNA damage, and DNA replication. Trans-regulation analyses further showed that differentially expressed lncRNAs were involved in multiple transcription factor-regulated pathways, such as TCFAP4, NFkB, HINFP, TFDP2, FoxN1, and PAX5. These transcription factors have all been shown to be involved in the modulation of testis development, cell cycle progression, and spermatogenesis. These findings suggest that the extent to which 1800 MHz RF induced toxicity in the testes and changed the expression of lncRNAs showed differences between morning exposure and evening exposure. These data indicate that differentially expressed lncRNAs play crucial roles in the RF exposure damage to the developing pubertal testis. Collectively, our findings provide a better understanding of the mechanisms underlying the toxic effects of RF exposure on testicular development.
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Affiliation(s)
- Fenju Qin
- School of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou, China.,School of Radiation Medicine and Protection, Soochow University, Suzhou, China
| | - Honglong Cao
- School of Electronics & Information Engineering, Soochow University, Suzhou, China
| | - Chuhan Feng
- School of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou, China
| | - Tianyuan Zhu
- School of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou, China
| | - Bingxu Zhu
- School of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou, China
| | - Jie Zhang
- School of Public Health, Soochow University, Suzhou, China
| | - Jian Tong
- School of Public Health, Soochow University, Suzhou, China
| | - Hailong Pei
- School of Radiation Medicine and Protection, Soochow University, Suzhou, China
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Hasan I, Amin T, Alam MR, Islam MR. Hematobiochemical and histopathological alterations of kidney and testis due to exposure of 4G cell phone radiation in mice. Saudi J Biol Sci 2021; 28:2933-2942. [PMID: 34012329 PMCID: PMC8117002 DOI: 10.1016/j.sjbs.2021.02.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/06/2021] [Accepted: 02/07/2021] [Indexed: 11/17/2022] Open
Abstract
The radiofrequency electromagnetic radiation emitted by smart phones on biological systems has wide media coverage and public concern in recent years. The aim of this study was to explore the effects of fourth-generation cell phone radiation exposure on hematological (Total leukocyte count, Total erythrocyte count, and hemoglobin %), biochemical (Serum creatinine) parameters, and histopathological changes in the kidney and testis of Swiss albino mice. A total of 30 male Swiss albino mice weighing 45–65 g was randomly divided into three groups (n = 10). The first group A was the control group, the second group B, was exposed to 40 minutes of mobile phone radiation daily, the third group C was exposed to 60 minutes of radiation daily from two 2400 Megahertz fourth-generation connected mobile phones for 60 days, respectively. The electromagnetic radiation frequency radiometer measured the frequency of electromagnetic radiation emitted from cell phones. The specific absorption rate was calculated as 0.087 W/kg. The control group was kept under similar conditions, but the electromagnetic field was not given for the same period. All the mice were sacrificed at the end of the experiment. The blood samples were collected for hematobiochemical study, and then kidney and testis tissues were collected for histopathological study. Results of the study showed that the body weight and total erythrocyte count values were significantly (p < 0.05) decreased while total leukocyte count, hemoglobin %, and serum creatinine values were significantly (p < 0.05) increased in both the radiation exposure groups relative to the control group. Histopathological observation showed the kidney of 60 minutes exposed mice interstitial inflammation that causes marked mononuclear cellular infiltration compared to the 40 minutes and control mice. Compared to control mice, histopathological examinations of testicular tissue from the exposed mice, showed irregular in shapes and non-uniform sizes and fewer spermatogenic cells layer that leads to the larger lumen in the seminiferous tubules. It is concluded that fourth-generation cell phone radiation exposure may affect blood hemostasis and inflammation of mice's kidney and testis tissue. Based on these studies, it is important to increase public consciousness of potential adverse effects of mobile phone radiofrequency electromagnetic radiation exposure.
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Affiliation(s)
- Imam Hasan
- Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Tanjina Amin
- Department of Anatomy and Histology, Faculty of Veterinary Medicine & Animal Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Md Rafiqul Alam
- Department of Surgery and Obstetrics, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mohammad Rafiqul Islam
- Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
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Amandokht Saghezchi S, Azad N, Heidari R, Jajarmi V, Abdi S, Abaszadeh HA, Sadjadpour SS, Neikoei N, Heidari MH, Abdollahifar MA. The Effect of Prenatal Exposure to 2.4 GHz Radio Frequency on the Histology and Expression of the osteocalcin and RUNX2 Gene of the Forelimb in an NMRI Mouse. J Lasers Med Sci 2019; 10:283-289. [PMID: 31875120 DOI: 10.15171/jlms.2019.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: Today the use of electromagnetic waves has dramatically increased in modern industrial societies. This study aimed to investigate the effect of prenatal exposure to 2.4 GHz wireless frequency on forelimb development in an NMRI mouse in vivo. Methods: A total of 21 female mice weighing 25-30 g were included in the present study. They were randomly assigned to 3 groups, namely control (n=7), sham (n=7), and experimental (n=7). After mating, the experimental group was exposed to 2.4 GHz radio frequency at a distance of 20-30 cm from the device, 4 h/d until the delivery. The sham group was placed at a distance of 20-30 cm from the device every day without exposure to electromagnetic waves, and the control group had a pregnancy period without any stress and electromagnetic wave exposure. After giving birth, the forelimbs were isolated from the infants and examined by stereological studies and RT-PCR for the evaluation of osteocalcin and RUNX2 gene expression. Results: Although, at first glance, there was no macroscopic teratogen effect in forelimbs in all groups, via a stereological method, we showed that bone and cartilage volume decreased in the experimental group compared to the other groups. We also found that the experimental group had lower expression of the osteocalcin and RUNX2 gene than the control and sham groups did. However, there were no significant differences between the control and sham groups in terms of bone and cartilage volume and gene expression. Conclusion: Although teratogen effect of prenatal exposure to 2.4 GHz radio frequency on forelimbs was not demonstrated macroscopically, further studies showed negative effects on the forelimb bone, cartilage volume, and gene expression.
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Affiliation(s)
- Shaghayegh Amandokht Saghezchi
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nahid Azad
- Abnormal Uterine Bleeding Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Reihane Heidari
- Otorhinolaryngology Research Center, Occupational Sleep Research Center, Department of Otorhinolaryngology, Imam Khomeini Educational Complex Hospital, Valiasr Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Jajarmi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shabnam Abdi
- Department of Anatomical Sciences &Cognitive Neuroscience, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Hojjat-Allah Abaszadeh
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyedeh Susan Sadjadpour
- Department of Cell and Molecular Biology, School of biology, College of Science, University of Tehran
| | - Naheid Neikoei
- Information Technology Management department, Islamic Azad University Electronic Unit, Tehran Iran
| | - Mohammad Hassan Heidari
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Amin Abdollahifar
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Keleş Aİ, Nyengaard JR, Odacı E. Changes in pyramidal and granular neuron numbers in the rat hippocampus 7 days after exposure to a continuous 900-MHz electromagnetic field during early and mid-adolescence. J Chem Neuroanat 2019; 101:101681. [PMID: 31465830 DOI: 10.1016/j.jchemneu.2019.101681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/30/2019] [Accepted: 08/25/2019] [Indexed: 11/19/2022]
Abstract
The aim of this study was to investigate qualitative and quantitative changes in pyramidal and granule neurons in the male rat hippocampus after exposure to a continuous 900-megahertz (MHz) electromagnetic field (EMF) for 25 days during early and mid-adolescence. Three-week-old (21 day) healthy Sprague Dawley male rats were divided equally into control (CON), pseudo-exposed (PEX) and EMF groups. EMF rats were exposed to a 900-MHz EMF in an EMF-application cage, while the PEX rats were placed in the same cage without being exposed to EMF. No procedure was performed in CON. EMF was applied for 1 h/day, every day for 25 days. Following the 900-MHz EMF and pseudo-exposed applications, behavioral tests were performed for seven days. Then, all animals were euthanized and their brains were removed. Following histological tissue procedures, sections were taken from tissues and stained with toluidine blue. The optical fractionation technique was performed to estimate the pyramidal neuron numbers in the CA1, CA2-3 and hilus regions of the hippocampus and granule neuron numbers in the dentate gyrus region. Our findings indicated that the number of pyramidal and granule neurons in the hippocampus of the EMF group was statistically higher than PEX. Furthermore, the histopathological results showed that the cytoplasm of pyramidal (in the hilus, CA1, CA2 and CA3 region) and granular (in the dentate gyrus region) cells at the hippocampus were disrupted, as evident by intensive staining around cytoplasm and some artifacts were detected in the EMF group. In addition, statistical comparisons of the mean body weights and brain weights of the study groups revealed no significant differences. There was no statistically significant difference between the PEX and EMF groups in terms of temperature (p > 0.05) or humidity (p > 0.05) in the cages. In conclusion, higher numbers of both pyramidal and granule neurons were found in the male rat hippocampus after continuous 900-MHz EMF treatment.
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Affiliation(s)
- Ayşe İkinci Keleş
- Department of Histology and Embryology, Faculty of Medicine, Niğde Ömer Halisdemir University, Niğde, Turkey.
| | - Jens Randel Nyengaard
- Department of Clinical Medicine, Core Centre for Molecular Morphology, Section for Stereology and Microscopy, Aarhus University Hospital, Aarhus C, Denmark
| | - Ersan Odacı
- Department of Histology and Embryology, Karadeniz Technical University Medical Faculty, Trabzon, Turkey
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10
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Okatan DÖ, Kulaber A, Kerimoglu G, Odacı E. Altered morphology and biochemistry of the female rat liver following 900 megahertz electromagnetic field exposure during mid to late adolescence. Biotech Histochem 2019; 94:420-428. [PMID: 31017002 DOI: 10.1080/10520295.2019.1580767] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Despite their benefits, technological devices such as cell phones may also have deleterious effects on human health. Considerable debate continues concerning the effects of the electromagnetic field (EMF) emitted during cell phone use on human health. We investigated the effects of exposure to 900 megahertz (MHz) EMF during mid to late adolescence on the rat liver. Control (ContGr), sham (ShmGr) and EMF (EMFGr) groups of female rats were established. We exposed the EMFGr rats daily to 900 MHz EMF on postnatal days 35-59. ShmGr rats underwent sham procedures. No procedure was performed on ContGr rats. Rats were sacrificed on postnatal day 60 and the livers were extracted. One part of the liver was stained with Masson's trichrome or hematoxylin and eosin. The remaining tissue was used to measure oxidative stress markers including malondialdehyde, glutathione, catalase, superoxide dismutase, 8-hydroxydeoxyguanosine (8-OHdG) and nitrotyrosine. Total antioxidant status and total oxidant status were used to calculate the oxidative stress index. We found normal hepatic morphology in the ContGr and ShmGr groups. The EMFGr group exhibited occasional irregularities in the radial arrangement of hepatocytes, cytoplasmic vacuolization, hemorrhage, sinusoid expansion, hepatocyte morphology and edema. Biochemical analysis revealed that 8-OHdG and SOD levels in EMFGr decreased significantly compared to the ContGr and ShmGr groups. Exposure to a continuous 900 MHz EMF for 1 h daily during mid to late adolescence may cause histopathological and biochemical alterations in hepatic tissue.
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Affiliation(s)
- D Ö Okatan
- Department of Histology and Embryology, Faculty of Medicine, Karadeniz Technical University , Trabzon , Turkey
| | - A Kulaber
- Department of Histology and Embryology, Faculty of Medicine, Karadeniz Technical University , Trabzon , Turkey
| | - G Kerimoglu
- Department of Histology and Embryology, Faculty of Medicine, Karadeniz Technical University , Trabzon , Turkey
| | - E Odacı
- Department of Histology and Embryology, Faculty of Medicine, Karadeniz Technical University , Trabzon , Turkey
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11
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Yahyazadeh A, Altunkaynak BZ. Protective effects of luteolin on rat testis following exposure to 900 MHz electromagnetic field. Biotech Histochem 2019; 94:298-307. [DOI: 10.1080/10520295.2019.1566568] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Affiliation(s)
- A. Yahyazadeh
- Department of Histology and Embryology, Faculty of Medicine, Karabuk University, Karabuk, Turkey
| | - B. Z. Altunkaynak
- Department of Histology and Embryology, Faculty of Medicine, Okan University, Istanbul, Turkey
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12
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Yang MJ, Lang HY, Miao X, Liu HQ, Zhang YJ, Wang YF, Chen YB, Liu JY, Zeng LH, Guo GZ. Effects of paternal electromagnetic pulse exposure on the reproductive endocrine function of male offspring: a pilot study. Toxicol Res (Camb) 2018; 7:1120-1127. [PMID: 30510681 PMCID: PMC6220719 DOI: 10.1039/c8tx00096d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 07/10/2018] [Indexed: 12/11/2022] Open
Abstract
Many studies indicate that parental exposure to an electromagnetic field (EMF) can cause long-term toxicity to the health of the offspring. While concerns have been focused on maternal influence, much less is known regarding the effects of paternal factors. Electromagnetic pulse (EMP) is a special and widely used type of EMF. The present study was designed to investigate the effects of paternal EMP exposure on the reproductive endocrine function of the male rat offspring. Male Sprague Dawley rats were randomly exposed to EMP at 200 kV m-1 for 0, 100 or 400 pulses before mating. The adult male offspring were sacrificed and the structural changes of testes, levels of serum steroid hormones, sperm characteristics, reproductive behaviors, content of the reproductive endocrine-related neurotransmitter GABA and expression of the GABAA receptor were analyzed. The results showed that paternal exposure induced a decrease of testosterone (T), sperm quantity and acrosin activity in the male offspring (p < 0.05). It did not show significant changes in the structure of testes, sperm deformity frequency and reproductive behaviors compared with the sham-exposed group. The content of GABA and the protein and mRNA expression of the hypothalamic GABAA receptor protein increased in the EMP exposure group (p < 0.05). In conclusion, our study shows that under these experimental conditions EMP had a certain degree of influence on the reproductive endocrine function of the male rat offspring, and the hypothalamic GABAA receptor may be involved in the reproductive toxicity of the male offspring.
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Affiliation(s)
- Ming-Juan Yang
- Department of Radiation Medicine , Faculty of Preventive Medicine , The Fourth Military Medical University , Xi'an , Shaanxi , China . ; ; ; ; Tel: +86-29-84774873
- Center for Infectious Disease Control , Institute of Disease Control and Prevention , PLA , Beijing , China
| | - Hai-Yang Lang
- Department of Radiation Medicine , Faculty of Preventive Medicine , The Fourth Military Medical University , Xi'an , Shaanxi , China . ; ; ; ; Tel: +86-29-84774873
| | - Xia Miao
- Department of Radiation Medicine , Faculty of Preventive Medicine , The Fourth Military Medical University , Xi'an , Shaanxi , China . ; ; ; ; Tel: +86-29-84774873
| | - Hai-Qiang Liu
- Department of Radiation Medicine , Faculty of Preventive Medicine , The Fourth Military Medical University , Xi'an , Shaanxi , China . ; ; ; ; Tel: +86-29-84774873
| | - Yan-Jun Zhang
- Department of Radiation Medicine , Faculty of Preventive Medicine , The Fourth Military Medical University , Xi'an , Shaanxi , China . ; ; ; ; Tel: +86-29-84774873
| | - Ya-Feng Wang
- Department of Radiation Medicine , Faculty of Preventive Medicine , The Fourth Military Medical University , Xi'an , Shaanxi , China . ; ; ; ; Tel: +86-29-84774873
| | - Yong-Bin Chen
- Department of Radiation Medicine , Faculty of Preventive Medicine , The Fourth Military Medical University , Xi'an , Shaanxi , China . ; ; ; ; Tel: +86-29-84774873
| | - Jun-Ye Liu
- Department of Radiation Medicine , Faculty of Preventive Medicine , The Fourth Military Medical University , Xi'an , Shaanxi , China . ; ; ; ; Tel: +86-29-84774873
| | - Li-Hua Zeng
- Department of Radiation Medicine , Faculty of Preventive Medicine , The Fourth Military Medical University , Xi'an , Shaanxi , China . ; ; ; ; Tel: +86-29-84774873
| | - Guo-Zhen Guo
- Department of Radiation Medicine , Faculty of Preventive Medicine , The Fourth Military Medical University , Xi'an , Shaanxi , China . ; ; ; ; Tel: +86-29-84774873
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13
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Altun G, Deniz ÖG, Yurt KK, Davis D, Kaplan S. Effects of mobile phone exposure on metabolomics in the male and female reproductive systems. Environ Res 2018; 167:700-707. [PMID: 29884548 DOI: 10.1016/j.envres.2018.02.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 02/22/2018] [Indexed: 06/08/2023]
Abstract
With current advances in technology, a number of epidemiological and experimental studies have reported a broad range of adverse effects of electromagnetic fields (EMF) on human health. Multiple cellular mechanisms have been proposed as direct causes or contributors to these biological effects. EMF-induced alterations in cellular levels can activate voltage-gated calcium channels and lead to the formation of free radicals, protein misfolding and DNA damage. Because rapidly dividing germ cells go through meiosis and mitosis, they are more sensitive to EMF in contrast to other slower-growing cell types. In this review, possible mechanistic pathways of the effects of EMF exposure on fertilization, oogenesis and spermatogenesis are discussed. In addition, the present review also evaluates metabolomic effects of GSM-modulated EMFs on the male and female reproductive systems in recent human and animal studies. In this context, experimental and epidemiological studies which examine the impact of mobile phone radiation on the processes of oogenesis and spermatogenesis are examined in line with current approaches.
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Affiliation(s)
- Gamze Altun
- Department of Histology and Embryology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Ömür Gülsüm Deniz
- Department of Histology and Embryology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Kıymet Kübra Yurt
- Department of Histology and Embryology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey; Environmental Health Trust, 7100 N Rachel Way Unit 6 Eagles Rest, Teton Village, WY 83025, United States
| | - Devra Davis
- Hadassah Medical School, Hebrew University, Jerusalem, Isreal and Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey; Environmental Health Trust, 7100 N Rachel Way Unit 6 Eagles Rest, Teton Village, WY 83025, United States
| | - Süleyman Kaplan
- Department of Histology and Embryology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey.
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14
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Yahyazadeh A, Deniz ÖG, Kaplan AA, Altun G, Yurt KK, Davis D. The genomic effects of cell phone exposure on the reproductive system. Environ Res 2018; 167:684-693. [PMID: 29884549 DOI: 10.1016/j.envres.2018.05.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 05/11/2018] [Accepted: 05/13/2018] [Indexed: 06/08/2023]
Abstract
Humans are exposed to increasing levels of electromagnetic fields (EMF) at various frequencies as technology advances. In this context, improving understanding of the biological effects of EMF remains an important, high priority issue. Although a number of studies in this issue and elsewhere have focused on the mechanisms of the oxidative stress caused by EMF, the precise understanding of the processes involved remains to be elucidated. Due to unclear results among the studies, the issue of EMF exposure in the literature should be evaluated at the genomic level on the reproductive system. Based on this requirement, a detail review of recently published studies is necessary. The main objectives of this study are to show differences between negative and positive effect of EMF on the reproductive system of animal and human. Extensive review of literature has been made based on well known data bases like Web of Science, PubMed, MEDLINE, Google Scholar, Science Direct, Scopus. This paper reviews the current literature and is intended to contribute to a better understanding of the genotoxic effects of EMF emitted from mobile phones and wireless systems on the human reproductive system, especially on fertility. The current literature reveals that mobile phones can affect cellular functions via non-thermal effects. Although the cellular targets of global system for mobile communications (GSM)-modulated EMF are associated with the cell membrane, the subject is still controversial. Studies regarding the genotoxic effects of EMF have generally focused on DNA damage. Possible mechanisms are related to ROS formation due to oxidative stress. EMF increases ROS production by enhancing the activity of nicotinamide adenine dinucleotide (NADH) oxidase in the cell membrane. Further detailed studies are needed to elucidate DNA damage mechanisms and apoptotic pathways during oogenesis and spermatogenesis in germ cells exposed to EMF.
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Affiliation(s)
- Ahmad Yahyazadeh
- Department of Histology and Embryology, Medical Faculty, Ondokuz Mayıs University, 55139, Samsun, Turkey
| | - Ömür Gülsüm Deniz
- Department of Histology and Embryology, Medical Faculty, Ondokuz Mayıs University, 55139, Samsun, Turkey
| | - Arife Ahsen Kaplan
- Department of Histology and Embryology, Medical Faculty, Ondokuz Mayıs University, 55139, Samsun, Turkey
| | - Gamze Altun
- Department of Histology and Embryology, Medical Faculty, Ondokuz Mayıs University, 55139, Samsun, Turkey
| | - Kıymet Kübra Yurt
- Department of Histology and Embryology, Medical Faculty, Ondokuz Mayıs University, 55139, Samsun, Turkey.
| | - Devra Davis
- Environmental Health Trust, P.O. Box 58, Teton Village, WY 83025, United States
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15
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Keleş Aİ, Yıldırım M, Gedikli Ö, Çolakoğlu S, Kaya H, Baş O, Sönmez OF, Odacı E. The effects of a continuous 1-h a day 900-MHz electromagnetic field applied throughout early and mid-adolescence on hippocampus morphology and learning behavior in late adolescent male rats. J Chem Neuroanat 2018; 94:46-53. [PMID: 30189239 DOI: 10.1016/j.jchemneu.2018.08.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 08/28/2018] [Accepted: 08/28/2018] [Indexed: 12/26/2022]
Abstract
The purpose of this study was to investigate hippocampus morphology and changes in learning behavior in male rats in late adolescence exposed to the effect of a continuous 1-h a day 900-megahertz (MHz) electromagnetic field (EMF). Twenty-four male Sprague Dawley rats aged 3-weeks were divided equally into control, sham and EMF groups. EMF group rats were exposed to a 900-MHz EMF inside an EMF cage, while the sham group rats were placed in the same cage but were not exposed to such an effect. No procedure was performed on the control group. Following 25-day application of EMF, passive avoidance, 8-arm radial maze and Y-maze tests were applied to determine rats' learning and memory performances. Open field and rotarod tests were applied to assess locomotor activity. At the end of the tests, the animals' brains were removed. Sections were taken and stained with toluidine blue. The regions of the hippocampus were subjected to histopathological evaluation. At histopathological examination, impairments of pyramidal and granular cell structures were observed in the EMF group hippocampus. No significant change was observed in learning, memory or locomotor behavior in any group. In conclusion, 900-MHz EMF applied in early and mid-adolescence causes no changes in learning, memory or locomotor behavior.
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Affiliation(s)
- Ayşe İkinci Keleş
- Department of Histology and Embryology, Faculty of Medicine, Niğde Ömer Halisdemir University, Niğde, Turkey.
| | - Mehmet Yıldırım
- Department of Physiology, Faculty of Medicine, Health Sciences University, İstanbul, Turkey
| | - Öznur Gedikli
- Department of Physiology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Sedar Çolakoğlu
- Department of Anatomy, Faculty of Medicine, Düzce University, Düzce, Turkey
| | - Haydar Kaya
- Department of Electrical and Electronics, Faculty of Engineering, Karadeniz Technical University, Trabzon, Turkey
| | - Orhan Baş
- Department of Anatomy, Faculty of Medicine, Ordu University, Ordu, Turkey
| | - Osman Fikret Sönmez
- Department of of Neurosurgery, Tepecik Education and Research Hospital, İzmir, Turkey
| | - Ersan Odacı
- Department of Histology and Embryology, Faculty of Medicine, Niğde Ömer Halisdemir University, Niğde, Turkey; Department of Physiology, Faculty of Medicine, Health Sciences University, İstanbul, Turkey; Department of Physiology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey; Department of Anatomy, Faculty of Medicine, Düzce University, Düzce, Turkey; Department of Electrical and Electronics, Faculty of Engineering, Karadeniz Technical University, Trabzon, Turkey; Department of Anatomy, Faculty of Medicine, Ordu University, Ordu, Turkey; Department of of Neurosurgery, Tepecik Education and Research Hospital, İzmir, Turkey
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Kerimoğlu G, Güney C, Ersöz Ş, Odacı E. A histopathological and biochemical evaluation of oxidative injury in the sciatic nerves of male rats exposed to a continuous 900-megahertz electromagnetic field throughout all periods of adolescence. J Chem Neuroanat 2018; 91:1-7. [DOI: 10.1016/j.jchemneu.2018.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 01/04/2018] [Accepted: 01/04/2018] [Indexed: 12/11/2022]
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17
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Hancı H, Kerimoğlu G, Mercantepe T, Odacı E. Changes in testicular morphology and oxidative stress biomarkers in 60-day-old Sprague Dawley rats following exposure to continuous 900-MHz electromagnetic field for 1 h a day throughout adolescence. Reprod Toxicol 2018; 81:71-78. [PMID: 30009952 DOI: 10.1016/j.reprotox.2018.07.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 07/26/2017] [Accepted: 07/02/2018] [Indexed: 12/15/2022]
Abstract
The purpose of this study was to investigate the 60-day-old male rat testis following exposure to continuous 900-megahertz (MHz) electromagnetic field (EMF) throughout the adolescent period using histopathological and biochemical analysis methods. Twenty-four Sprague Dawley rats aged 21 days were randomly and equally (n = 8) divided into three groups. No procedure was performed on the control group rats. The sham group rats were held in an EMF-cage without exposure to EMF. The EMF group rats were exposed to continuous 900-MHz EMF for 1 h each day inside the EMF-cage during adolescence. On postnatal day 60 the testes were extracted and divided into right and left halves. The right half was used for histopathological evaluation and the left half for biochemical analyses. Our results show that changes may occur in morphology and oxidative stress biomarkers in the rat testis following exposure to continuous 900-MHz EMF throughout the adolescent period.
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Affiliation(s)
- Hatice Hancı
- Department of Histology and Embryology, Karadeniz Technical University, Faculty of Medicine, TR-61080 Trabzon, Turkey.
| | - Gökçen Kerimoğlu
- Department of Histology and Embryology, Karadeniz Technical University, Faculty of Medicine, TR-61080 Trabzon, Turkey
| | - Tolga Mercantepe
- Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdoğan University, TR-53100 Rize, Turkey
| | - Ersan Odacı
- Department of Histology and Embryology, Karadeniz Technical University, Faculty of Medicine, TR-61080 Trabzon, Turkey
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Saliev T, Begimbetova D, Masoud AR, Matkarimov B. Biological effects of non-ionizing electromagnetic fields: Two sides of a coin. Prog Biophys Mol Biol 2018; 141:25-36. [PMID: 30030071 DOI: 10.1016/j.pbiomolbio.2018.07.009] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 07/12/2018] [Accepted: 07/16/2018] [Indexed: 12/12/2022]
Abstract
Controversial, sensational and often contradictory scientific reports have triggered active debates over the biological effects of electromagnetic fields (EMFs) in literature and mass media the last few decades. This could lead to confusion and distraction, subsequently hampering the development of a univocal conclusion on the real hazards caused by EMFs on humans. For example, there are lots of publications indicating that EMF can induce apoptosis and DNA strand-breaks in cells. On the other hand, these effects could rather be beneficial, in that they could be effectively harnessed for treatment of various disorders, including cancer. This review discusses and analyzes the results of various in vitro, in vivo and epidemiological studies on the effects of non-ionizing EMFs on cells and organs, including the consequences of exposure to the low and high frequencies EM spectrum. Emphasis is laid on the analysis of recent data on the role of EMF in the induction of oxidative stress and DNA damage. Additionally, the impact of EMF on the reproductive system has been discussed, as well as the relationship between EM radiation and blood cancer. Apart from adverse effects, the therapeutic potential of EMFs for clinical use in different pathologies is also highlighted.
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Affiliation(s)
- Timur Saliev
- Kazakh National Medical University Named After S.D. Asfendiyarov, Tole Bi Street 94, Almaty, 050000, Kazakhstan; National Laboratory Astana, Nazarbayev University, 53 Kabanbay batyr Ave., Astana, 010000, Kazakhstan.
| | - Dinara Begimbetova
- National Laboratory Astana, Nazarbayev University, 53 Kabanbay batyr Ave., Astana, 010000, Kazakhstan
| | - Abdul-Razak Masoud
- National Laboratory Astana, Nazarbayev University, 53 Kabanbay batyr Ave., Astana, 010000, Kazakhstan
| | - Bakhyt Matkarimov
- National Laboratory Astana, Nazarbayev University, 53 Kabanbay batyr Ave., Astana, 010000, Kazakhstan
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Yilmaz A, Tumkaya L, Akyildiz K, Kalkan Y, Bodur AF, Sargin F, Efe H, Uydu HA, Yazici ZA. Lasting hepatotoxic effects of prenatal mobile phone exposure. J Matern Fetal Neonatal Med 2016; 30:1355-1359. [DOI: 10.1080/14767058.2016.1214124] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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