effect of microwave on human body ppt

Nakatani-Enomoto S, Furubayashi T, Ushiyama A, Groiss SJ, Ueshima K, Sokejima S, et al. Relationship between cognition function and hippocampus structure after long-term microwave exposure. 2005;161:3314. More than 50% of miRNAs are found in cancer-associated regions of the genome or in fragile sites, suggesting that miRNAs also play important roles in the pathogenesis of neoplasias [96]. Raised glucose levels enhance scopolamine-induced acetylcholine overflow from the hippocampus: an in vivo microdialysis study in the rat. [14] found that gliomas are not preferentially located in the parts of the brain with the highest exposure. A large number of studies have shown that microwave radiation can cause a series of adverse reactions in the central nervous system, including sleep disorders in addition to learning and memory impairments. 2006;165:63644. Thus, these results suggest that the 2.4W/kg GSM 1800MHz microwaves may reduce excitatory synaptic activity and the number of excitatory synapses in cultured rat hippocampal neurons. Li-Feng Wang or Xiang-Jun Hu. Synaptic vesicles form in different parts of neurons and contain high concentrations of substances that are transferred from the neuron. Preece A, Iwi G, Davies-Smith A, Wesnes K, Butler S, Lim E, et al. Provided by the Springer Nature SharedIt content-sharing initiative. Ozben T. Oxidative stress and apoptosis: impact on cancer therapy. Modulation of HSP response in SH-SY5Y cells following exposure to microwaves of a mobile phone. Radiat Res. [20] divided the radar workers into three sets: control group (n=68), exposure group I (n=40, exposed to 812GHz) and exposure group II (n=58, working with radar at 12.518.0GHz). Mol Neurobiol. 2003;11:346. 2003;140:147. Technol Cancer Res Treat. Since mobile phones are used in positions very close to the human body and require a large Effects of fetal microwave radiation exposure on offspring behavior in mice. Many recent studies have reported that microwaves exposure affects EEG results [54,55,56,57]. PPT Scientific, technical publications in the nuclear field | IAEA J Neurosci Methods. Thus, the committee suggested that in the future, studies should explore the border between thermal and non-thermal effects and that specific effects, such as triggering the onset of thermoregulatory reactions, should be defined. Othman H, Ammari M, Rtibi K, Bensaid N, Sakly M, Abdelmelek H. Postnatal development and behavior effects of in-utero exposure of rats to radiofrequency waves emitted from conventional WiFi devices. They found that escape times were substantially decreased when the animals were trained while exposed to the phone. Int J Radiat Biol. Dasdag S, Bilgin H, Akdag M, Celik H, Aksen F. Effect of long term mobile phone exposure on oxidative-antioxidative processes and nitric oxide in rats. Nuclear pyknosis and capillary congestion are also observed. 2015;91:30611. The hazard for human health from the electromagnetic radiations well be. Research continues on possible biological effects of exposure to RF/MW radiation from radios, cellular phones, the processing and cooking of foods, heat . The levels of NMDA receptor subunits were increased 1 month after irradiation. PubMed [65] irradiated Wistar rats with 10, 30 and 50mW/cm2 microwaves, and the results showed that in the cerebral cortex, only glycine (Gly) and asparagine (Asp) levels were increased. PubMed Li H, Li C. Apoptosis gene expression and their relationship to mtDNA mutation in tumor tissues of gynecologic oncology patients. 1992;6:379. Therefore, the authors concluded that exposure to a radiofrequency of 900MHz might trigger the neoplastic process because it produces a relative increase in the number of potentially long-lived cells. Recent advances in the effects of microwave radiation on brains, https://doi.org/10.1186/s40779-017-0139-0, Dysfunction of learning and memory abilities, http://creativecommons.org/licenses/by/4.0/, http://creativecommons.org/publicdomain/zero/1.0/. 2009;63:10106. Int J Radiat Biol. [50] exposed Wistar rats to 2.856GHz microwaves at an average power density of 5, 10, 20 or 30mW/cm2 for 6min three times per week for up to 6weeks and found that on day 14 after irradiation, the levels of Asp and Glu were lower in the hippocampus in the group treated with 5mW/cm2 but higher in the group treated with 30mW/cm2, The levels of GABA were elevated. Fragopoulou AF, Samara A, Antonelou MH, Xanthopoulou A, Papadopoulou A, Vougas K, et al. Gold PE. Exposure to microwaves and silencing p-synapsin I reduced the release of GABA, and maximum reduction was achieved when both were combined, indicating a synergistic effect. A large number of studies have shown that microwave radiation can cause a series of adverse reactions in the central nervous system, including sleep disorders in addition to learning and memory impairments. JAMA. Does MW radiation affect gene expression, apoptotic level, and cell cycle progression of human sh-sy5y neuroblastoma cells? [40] concluded that despite the differences in the conditions used in the experiments, space limitations and whether the wall of the maze was clear did not substantially influence outcomes. Sharma A, Sisodia R, Bhatnagar D, Saxena VK. 2008;86:718. Biochem J. Vorobyov et al. Ann N Y Acad Sci. It influences both learning and memory in rats [67]. Bioelectromagnetics. However, to date, with the exception of high-power microwave radiation, which has widely established hazardous effects, the biological effects of microwaves remain controversial. 2004;115:1490505. Cancer in radar technicians exposed to radiofrequency/microwave radiation: sentinel episodes. Electromagnetic fields (EMF): do they play a role in children's environmental health (CEH)? Microwaves are widely used in households, industry, communications, and medical and military buildings, and they provide substantial contributions to the development of human society. Google Scholar. Using a ring resonator notch filter for optical carrier reduction and modulation depth enhancement in radio-over-fiber links. & Hu, XJ. 2005;161:52635. Google Scholar. At present, due to a general consensus that the most significant parameter for . The effects of microwave radiation on protein synthesis in brain remain undetermined. A resting eyes-closed electroencephalogram was used to continuously record the results, which showed that there was an increase in the power of the , 1 and 2 frequency bands in the 0.303W/kg group and in the 2 frequency bands in the 0.003W/kg group. Microwaves can influence mitochondria by damaging their structure [45], reducing ATP levels and affecting the activity of relevant enzymes such as succinate dehydrogenase (SDH) and cytochrome coxidase (COX) [119,120,121]. Qiao et al. Suppl Clin Neurophysiol. 2013;89:11007. 2005;438:18592. Othman H, Ammari M, Sakly M, Abdelmelek H. Effects of prenatal exposure to WIFI signal (2.45 GHz) on postnatal development and behavior in rat: influence of maternal restraint. Behav Brain Res. The authors predicted the differential expression of genes associated with transcription, translation and receptor functions (in addition to brain-related and signaling pathway-related) using the iRDB, miRbase and miRanda databases. In addition, glucose is also related to cognitive functions, and reductions in the metabolism and uptake of glucose have been observed in local regions of the brain in Alzheimers patients [107, 108]. Harris KM. N-methyl-D-aspartic acid receptor (NMDAR) is a tetramer composed of two NR1 and two NR2 subunits or two NR3 subunits that perform the functions of NMDAR [69, 70], and NMDAR plays key roles in synapse development, synaptic plasticity and neurological diseases. Behav Brain Res. With the popularity of microwave technology, microwave effects on the human body have become a common topic of concern, and the central nervous system is recognized as a target organ system that is sensitive to microwave radiation. Microwaves are a form of electromagnetic. The results showed that in normal EEGs, the (3.26.0Hz) and 2 (17.830.5Hz) waves were mainly concentrated in the cortex, while the (6.017.8Hz) waves were mainly concentrated in the hypothalamus. Synaptic plasticity is a special function of synapses, which play an important role in learning and memory processes [46], including structural and functional plasticity. 1994;15:95104. Professor, Asst Director at VIT As a result, the existing data exhibit poor reproducibility and comparability. pability of the body (thus, a thermal effect), whereas the standard of the U.S.S.R. and Poland are based upon the interaction of the microwave fields with the brain and central nervous system as measured by neurological or behavior effects. A metabolomic approach to screening urinary metabolites upon microwave exposure in monkeys. In 2011, the International Agency for Research on Cancer (IARC) announced that microwave radiation has potentially carcinogenic effects (2B). PubMed In a report by the Poland Department of Microwave Safety, occupational exposure to electromagnetic fields was analyzed in the work environment of personnel of 204 devices divided into 5 groups (surface-to-air missile system radars, aircraft and helicopters, communication devices, surveillance and height finder radars, airport radars and radio navigation systems). The study also showed that exposure to GSM microwaves at 915MHz did not induce detectable DNA double-strand breaks but affected the expression of genes in rat brain cells. Harmful effects of microwaves on living beings - SlideShare Zhao L, Sun C, Xiong L, Yang Y, Gao Y, Wang L, et al. 1975;148:1723. Article Chin J Indus Hyg. Brain electrical activity originates from the membrane potential of the neuron itself and the fluctuation in membrane potential. 2006;27:16471. Environ Toxicol Pharmacol. PDF Electromagnetic Radiation and Human Health: A Review of Sources and Effects In broadcasting, the sources of microwaves are mainly FM radio and TV broadcasting antennas, which produce frequencies ranging from 80 to 800MHz. Mortazavi SMJ, Taeb S, Dehghan N. Alterations of visual reaction time and short term memory in military radar personnel. Biological Effects of Microwave Radiation - tandfonline.com 2004;996:8996. Interaction of Radiation with Matter - GSU Exp Neurobiol. In summary, there is evidence that microwave radiation can lead to alterations in protein synthesis or protein modifications; however, the results are controversial. Vakalopoulos C. The EEG as an index of neuromodulator balance in memory and mental illness. increased with the growing in the number of devices that used the Microwave frequencies in. 1 Microwave Theory and Techniqes | PDF | Microwave - Scribd The interaction of microwaves with matter other than metallic conductors will be to rotate molecules and produce heat as result of that molecular motion. The brain has been recognized as one of the organs that is most vulnerable to microwave radiation. 1993;13:41322. CAS Biomed Environ Sci. This study also revealed the dose-dependent relationship of the modulated microwave effect: decreasing the SAR 100-fold reduced the associated changes in the EEG by three- to six-fold and decreased the number of affected subjects but did not completely eliminate the effects. Electromagnetic radiation can be absorbed by organisms, in which it causes a series of physiological and functional changes. Digestive System: The unstable catabolism of microwaved foods alters their elemental food substances, causing disorders in the digestive system. Bioelectromagnetics. PLoS One. Microwaves are electromagnetic waves with frequencies ranging from 300MHz to 300GHz. Brain tumour risk in relation to mobile telephone use: results of the INTERPHONE international case-control study. Singh S, Mani KV, Kapoor N. Effect of occupational EMF exposure from radar at two different frequency bands on plasma melatonin and serotonin levels. 2 Researchers have been working. Surg Neurol. Bad impacts a microwave has on our daily lives. Effects of isothermal 2.45 GHz microwave radiation on the mammalian cell Ci ihff fihl2MHdifdi i Bi l h. C Spr '05 Inan, OT Thermal effects of RF he above diagram depicts the electric field alternations, at a frequency f, of the 2002;13:11921. Int J Occup Environ Health. Dasdag et al. 2000;284:30017. Defective actin dynamics in dendritic spines: cause or consequence of age-induced cognitive decline? Article Ongwijitwat S, Wong-Riley MT. 2006;12:44651. 2012;25:1828. [21, 22] found a higher incidence of brain cancer in radar technicians and a shortened incubation period (i.e., less than 10years). Hassanshahi A, Shafeie SA, Fatemi I, Hassanshahi E, Allahtavakoli M, Shabani M, et al. BOOTP and DHCP.ppt anik301. Microwaves Technology : Basics, Effetcs & Its Applications - ElProCus Neuroscience. Biological effects of 2450 MHz microwave combined with -rays on rat cultured gliacytes. 1999;4:102. Maternal exposure to Wi-Fi radio frequencies led to various adverse neurological effects in the offspring. Johnson OL, Ouimet CC. Electromagn Biol Med. However, the problem with these studies is that different parameters, such as the frequency, modulation, and power density of the radiation and the irradiation time, were used to evaluate microwave radiation between studies. 2005;22:32931. The microwave will do its intended job of heating and will start to burn (or cook) the skin tissue. [104] found that exposure to a 1.9GHz pulse-modulated RF field for 4h at 0.1, 1.0, and 10W/kg did not affect gene expression in U87MG glioblastoma cells. 2007;34:146779. [58] exposed volunteers to microwaves at a frequency of 450MHz for 10 repeated intervals of 1min of irradiation and 1min off. Resting state cortical EEG rhythms in Alzheimer's disease: toward EEG markers for clinical applications: a review. LTP induction involves a signal transduction cascade that includes the release of glutamate from synaptic vesicles, activation of NMDAR at postsynaptic membranes, entry of Ca2+, and activation of Ca2+/calmodulin-dependent protein kinases (CaM kinases) II, IV and mitogen-activated protein kinase (MAPK) [71]. 2006;79:13140. Chizhenkova R. Slow potentials and spike unit activity of the cerebral cortex of rabbits exposed to microwaves. Mack et al. Trends Neurosci. Am J Epidemiol. Neuroreport. 1997;44:99104. 2003;80:177. Proliferation and apoptosis in a neuroblastoma cell line exposed to 900 MHz modulated radiofrequency field. Merola P, Marino C, Lovisolo G, Pinto R, Laconi C, Negroni A. CAS It has been suggested that there is an increased risk of glioma at the highest exposure levels, but biases and errors prevent causal interpretations of these data. [39] exposed rats to microwaves (500 pps, pulse width=2s, and average whole body-specific absorption rate (SAR)=0.6W/kg) for an exposure duration of 45min, and a significant decline was observed in the rats performance, indicating that microwave radiation influenced their working memory. 2007;96:218196. Mobile Effects on Human Body - slideshare.net Neurosci Lett. To investigate the effects of microwaves radiation on apoptotic activity, cell viability, and cell cycle progression, which can provide information about microwaves radiation effects on neural cells over the period from embryonic stages to infants. 2013;34:58998. Clin Neurophysiol. 2006;27:11926. PubMed Central Sanders AP, Joines WT. The Dangers of Microwaves and Their Effects on Food - Natural Society However, in rats treated with long-term exposure to radiation, neurons exhibit edema and are arranged irregularly. 2023 BioMed Central Ltd unless otherwise stated. Wang H, Peng R, Zhou H, Wang S, Gao Y, Wang L, et al. 1 Microwave radiation may also lead to skin cancer/health problems when we are within the radius of a cell phone tower in a certain specified limited distance. Mitochondrial lipid abnormality and electron transport chain impairment in mice lacking -synuclein. Dasdag S, Balci K, Ayyildiz M, Celik M, Tekes S, Kaplan A. Verma et al. MicroRNAs: novel mechanism involved in the pathogenesis of microwave exposure on rats hippocampus. Bioelectromagnetics. J Environ Health Sci Eng. Oto R, Akda Z, Dada S, Celik Y. Then that poisonous acid harms the kidneys and nervous system. [105] identified stable C-T mutation sites at 217 points by screening for SNPs in the GRIN2B promoter region in rats. Cosquer B, Kuster N, Cassel JC. Article Electromagn Biol Med. [37] exposed male Wistar rats (1012weeks old) to a Global System for Mobile Communication (GSM) (900/1800MHz) mobile phone that was in vibrating mode (i.e., no ring tone). Edelstyn N, Oldershaw A. Mack A, Georg T, Kreis P, Eickholt BJ. Electromagn Biol Med. Low intensity microwave radiation induced oxidative stress, inflammatory response and DNA damage in rat brain. PubMedGoogle Scholar. Repeated exposure to low-level extremely low frequency-modulated microwaves affects cortex-hypothalamus interplay in freely moving rats: EEG study. However, a recent report [3] published by the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR) noted that discussions about the thermal and non-thermal effects are misleading. [46] found that by excessively activating the NMDA receptor signaling pathway, microwaves undermine hippocampal synaptic plasticity, explaining the damage observed in learning and memory abilities in radiated rats. Terms and Conditions, 2014;8:63. Wang Q, Cao Z. The results suggested that chronic non-modulated, but not modulated, microwave radiation may cause anxiety-like and depression-like behaviors and calcium- and NO-related biochemical changes in the brain [77].

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