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Microwave Hazards | PDF | Microwave | Electromagnetic Radiation - Scribd 2004;25:4957. Electromagnetic radiation can be absorbed by organisms, in which it causes a series of physiological and functional changes. They found that escape times were substantially decreased when the animals were trained while exposed to the phone. The levels of NMDA receptor subunits were increased 1 month after irradiation. The final apoptosis score in the exposed group was significantly reduced, and the total antioxidant capacity and catalysis observed in the experimental group was increased. Ozben T. Oxidative stress and apoptosis: impact on cancer therapy. Megha K, Deshmukh PS, Banerjee BD, Tripathi AK, Ahmed R, Abegaonkar MP. [81] reported a study exploring the influence of mobile phone microwave radiation on oxidative stress and apoptosis in rat brains. In the lower SAR group, the , 1 and 2 bands were affected in the three subjects. In 43% of devices, military personnel are not exposed to an electromagnetic field. BMJ. 2002;64:31353. Dasdag S, Balci K, Ayyildiz M, Celik M, Tekes S, Kaplan A. Sage C, Carpenter D, Hardell L. Comments on SCENIHR: opinion on potential health effects of exposure to electromagnetic fields. Shahin S, Banerjee S, Singh SP, Chaturvedi CM. Sci STKE. Lee TM, Ho SM, Tsang LY, Yang SY, Li LS, Chan CC. Nature. Researchers have also used the 12-arm maze test on rats to test spatial working ability after exposure to 2.45GHz pulse microwave radiation. Larjavaara S, Schz J, Swerdlow A, Feychting M, Johansen C, Lagorio S, et al. 2013;5:5500110. Most matter, including the human body, is largely . 2.45 GHz Microwave Radiation Impairs Learning and Spatial Memory via Oxidative/Nitrosative Stress Induced p53-Dependent/Independent Hippocampal Apoptosis: Molecular Basis and Underlying Mechanism. [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. J Environ Health Sci Eng. Pathophysiology. The normal function of synaptic vesicles depends on the normal expression of related proteins. 2004;996:8996. 2013;42:428. Particularly, the dramatically increasing number of mobile phones users rise significant concerns due to its potential damage on people exposed by radiofrequency waves. Maternal exposure to Wi-Fi radio frequencies led to various adverse neurological effects in the offspring. Melatonin and serotonin levels were estimated, which play important roles in the nervous system. The microwave energy can be changed to warm up the food because this energy is absorbed by food & it does not prepare food contaminated or radioactive. Edelstyn N, Oldershaw A. Finally, Hardell et al. 2002;57:2702. Baer C, Claus R, Plass C. Genome-wide epigenetic regulation of miRNAs in cancer. Identification of a novel rat nr2b subunit gene promoter region variant and its association with microwave-induced neuron impairment. Qiao et al. Int J Hyg Environ Health. [58] exposed volunteers to microwaves at a frequency of 450MHz for 10 repeated intervals of 1min of irradiation and 1min off. Kumar M, Singh SP, Chaturvedi CM. Mol Brain Res.
1 Microwave Theory and Techniqes | PDF | Microwave - Scribd 2004;115:1490505. PubMed The effects of microwave radiation on protein synthesis in brain remain undetermined. Radiofrequency (RF) and microwave (MW) radiation are electromagnetic radiation in the frequency ranges 3 kilohertz (kHz) - 300 Megahertz (MHz), and 300 MHz - 300 gigahertz (GHz), respectively. Koivisto M, Krause CM, Revonsuo A, Laine M, Hmlinen H. The effects of electromagnetic field emitted by GSM phones on working memory. Joubert et al. Conductors will strongly absorb microwaves and any lower frequencies because they will cause electric currents which will heat the material. 2008;169:3845. 2009;63:10106. Article Google Scholar. 2000;284:30017. Many intricate electrical activities occur in the central nervous system, including learning and memory, which are therefore vulnerable to electromagnetic radiation. Raised glucose levels enhance scopolamine-induced acetylcholine overflow from the hippocampus: an in vivo microdialysis study in the rat. Curr Opin Neurobiol. Gage FH, Kelly P, Bjorklund A. Singh et al. Calabr E, Magaz S. Inspections of mobile phone microwaves effects on proteins secondary structure by means of Fourier transform infrared spectroscopy. MicroRNAs and neurodegeneration: role and impact. However, Li et al. Because a childs nervous system is growing and their head is more vulnerable to radiation energy, studies that have specifically addressed whether the nervous systems of children are more susceptible to electromagnetic radiation have been performed. MicroRNAs in neuronal function and dysfunction. Predictors and overestimation of recalled mobile phone use among children and adolescents. Privacy Krylova I, Dukhanin A, Il'in A, Kuznetsova EY, Balaeva N, Shimanovskii N, et al. Mol Neurobiol. Gold PE. Frei P, Poulsen AH, Johansen C, Olsen JH, Steding-Jessen M, Schz J. Int J Radiat Biol. The results demonstrated the ability of electric magnetic field (EMF) to influence plasma melatonin and serotonin concentrations in radar workers. PubMed Springer Nature. To investigate the potential combined influence of maternal restraint stress and 2.45GHz Wi-Fi signal exposure on postnatal development and behavior in the offspring of exposed rats, control, Wi-Fi-exposed, restrained and both Wi-Fi-exposed and restrained groups were established. 2005;438:18592. Verma RK, Sisodia R, Bhatia A. Radioprotective role of Amaranthus Gangeticus Linn. Besides, the Soviet Union banned microwaves in 1976 . 1 of 41 Harmful effects of microwaves on living beings Oct. 04, 2015 4 likes 4,519 views Download Now Download to read offline Environment The presentation proves beyond any doubt, the harmful affects of microwaves and radio frequency waves on humans and other living beings Padmanabhan Krishnan Follow Dr. Appl Biochem Biotechnol. Wang et al. Resulting Effects on the Human Body. Wang L, Peng R, Hu X, Gao Y, Wang S, Zhao L, et al. Human SH-SY5YNB cells were exposed to 2.1GHz W-CDMA modulated microwave radiation for 24h at a specific absorption rate of 0.491W/kg. Kwon et al. The transduction of a nerve impulse and the postsynaptic potential produced by it result in synaptic transmission. Zhao et al. biological effects of electromagnetic waves started to be discussed. Xu et al. Moreover, the popularization of mobile phones has made them the main source of brain exposure to radiation. The largest problem in these studies is that they used different parameters, such as the frequency, modulation, power density and irradiation time, to apply microwave radiation, in addition to using a variety of research methods. Then that poisonous acid harms the kidneys and nervous system. Clin Neurophysiol. J Radiat Proc. The biological effects of microwave and RF are difficult to quantify, but one method, which in-volves the determination of the relation-ship between the body mass-averaged It has been proposed that by enhancing the functions of acetylcholine, glucose can increase the concentration of free calcium ions in the synapse to reverse microwave-induced damage to learning and memory. Reactive oxygen species act through p38 MAPK to limit the lifespan of hematopoietic stem cells. Qutob S, Chauhan V, Bellier P, Yauk C, Douglas G, Berndt L, et al. 2000;6:18793. [111] found that the rate of glucose metabolism in the brains of rats was lower after short-term exposure to microwave radiation, and the blood glucose management reduced the damage that was caused by microwave radiation due to the decreased glucose uptake (2.45MHz, 1mW/cm2, continuous radiation for 30 d at 3h/d), as were learning and memory capacity. 2013;89:11007. This effect is similar to the decrease observed in NR2B in rats. Use of mobile phones and risk of brain tumours: update of Danish cohort study. BOOTP and DHCP.ppt anik301. Dasdag S, Akdag MZ, Kizil G, Kizil M, Cakir DU, Yokus B. These results indicated that mobile phone exposure affected the acquisition of learned responses in Wistar rats. 2004;23:20114. PubMed Concurrently, in the hippocampus, acetylcholine can promote learning and memory [115, 116]. The article's subject is the investigation of electromagnetic fields (EMF) of the microwave frequency band in a typical human living environment, especially in shielded areas. The direct cause of the observed neuronal damage may have been apoptosis induced by the microwave radiation, and an indirect cause may have been an increase in permeability of the blood-brain barrier (BBB), which would allow the traversal of toxic substances that could cause damage. 2014;9:e95503. Most bioassay and genotoxicity or mutation studies that have been performed in vitro have reported that exposure to microwave radiation at non-thermal levels does not have mutagenic/genotoxic/carcinogenic effects. Regional cerebral glucose uptake in the 3xTG model of Alzheimer's disease highlights common regional vulnerability across AD mouse models. This phenomenon may be explained by the varied radiation dosage adopted in these studies. Schmid MR, Murbach M, Lustenberger C, Maire M, Kuster N, Achermann P, et al. Many studies have been made on the biological effects of microwave radiation. Synapses are special structures that are involved in the transmission of electrochemical signals between neurons in the central nervous system. Biol Chem. The microwave will do its intended job of heating and will start to burn (or cook) the skin tissue. 2012;21:6209. The induced genes encoded proteins with a variety of functions, including neurotransmitter regulation, BBB maintenance, and melatonin production. Cassel et al. Nuclear pyknosis and capillary congestion are also observed. Effect of a 915-MHz simulated mobile phone signal on cognitive function in man.
Biological Effects of Microwave Radiation - tandfonline.com fMicrowave Radiation Comes From Many Sources, Including: Cell phones. 2015;28:1324. 2014;12:75. static fields, health effects, human health, environmental effects, SCENIHR, Scientific Committee on Emerging and Newly Identified Health Risks Opinion to be cited as: 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.
Wi-Fi is an important threat to human health - PubMed Chin J Indus Hyg. Bioelectromagnetics. 2012;112:1715. 2008;22:9927. Among the variety of neurotransmitters, glutamate is the most abundant endogenous amino acid in the mammalian central nervous system. 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]. Dendritic spines, which are small protrusions that extend from dendritic shafts, are also cellular compartments containing signaling molecules that are important for synaptic transmission and plasticity [88,89,90,91]. J Neuro-Oncol. Biotechnol Biotechnol Equip. 2014;70:84555. Eliyahu I, Luria R, Hareuveny R, Margaliot M, Meiran N, Shani G. Effects of radiofrequency radiation emitted by cellular telephones on the cognitive functions of humans. Arch Environ Health. 2005;130:591600. Biomed Environ Sci. Bioelectromagnetics. Research continues on possible biological effects of exposure to RF/MW radiation from radios, cellular phones, the processing and cooking of foods, heat . Radiat Res. 2013;32:27380. A popular focus among researchers is the damage that microwave radiation causes in the central nervous system, in which it can impair learning and memory. 2012;31:6774. Effects of 902 MHz electromagnetic field emitted by cellular telephones on response times in humans. Cell Biochem Biophys. Ongwijitwat S, Wong-Riley MT. Lai et al. 2015;51:15865. [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).