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Repeated exposure to low-level extremely low frequency-modulated microwaves affects cortex-hypothalamus interplay in freely moving rats: EEG study
dc.creator | Vorobyov, Vasily | |
dc.creator | Petković, Branka | |
dc.creator | Pešić, Vesna | |
dc.creator | Prolić, Zlatko | |
dc.date.accessioned | 2020-07-22T08:30:35Z | |
dc.date.available | 2900-01-01 | |
dc.date.issued | 2010 | |
dc.identifier.issn | 0955-3002 | |
dc.identifier.uri | https://www.tandfonline.com/doi/full/10.3109/09553000903567938 | |
dc.identifier.uri | https://radar.ibiss.bg.ac.rs/handle/123456789/3796 | |
dc.description.abstract | Purpose: To compare the effects of repeated exposure to extremely low frequency-modulated microwaves (ELF-MW) on cortical and hypothalamic electroencephalograms (EEG). Materials and methods: In 10 freely moving rats with carbon electrodes implanted into the cortex and dorsomedial hypothalamus, averaged frequency spectra (0.5-30 Hz) of the EEG were studied for five consecutive days either under sham exposures (five rats) or under mixed sham/MW-exposures (five rats). The rats were exposed to ELF-MW (915 MHz, 20-ms pulse duration, approximately 0.3 mW/cm(2), 4 Hz) intermittently (1-min 'On', 1-min 'Off') for 10 min (specific absorption rate, SAR, approximately 0.7 mW/g on average) several times per day, with 10-min pre- and post-exposure periods. Results: In baseline EEG, the activities of 3.2-6.0 Hz and 17.8-30.5 Hz dominated in the cortex and of 6.0-17.8 Hz in the hypothalamus. This cortical-hypothalamic imbalance was relatively stable at sham-exposures and insensitive to ELF-MW in all frequency ranges but one. ELF-MW increased the beta(2) (17.8-30.5 Hz) level in the hypothalamus to a greater extent than in the cortex, causing significant diminishing of the initial EEG bias between them. Moreover, a cumulative phenomenon under repeated exposures to ELF-MW was revealed. Conclusions: These results are in line with evidence that repeated low-level exposure to ELF-MW affects brain functioning and provide an additional approach when analysing underlying mechanisms. | en |
dc.language.iso | en | sr |
dc.publisher | Informa Healthcare | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/MPN2006-2010/143027/RS// | sr |
dc.rights | restrictedAccess | sr |
dc.source | International Journal of Radiation Biology | sr |
dc.subject | Frequency spectra | sr |
dc.subject | Cortex | sr |
dc.subject | Hypothalamus | sr |
dc.subject | ELF-modulated microwaves | sr |
dc.subject | Rats | sr |
dc.title | Repeated exposure to low-level extremely low frequency-modulated microwaves affects cortex-hypothalamus interplay in freely moving rats: EEG study | en |
dc.type | article | sr |
dc.rights.license | ARR | sr |
dcterms.abstract | Пешић, Весна; Петковић, Бранка; Пролић, Златко; Воробyов, Василy; | |
dc.rights.holder | © 2010 Informa UK Ltd. | sr |
dc.citation.issue | 5 | |
dc.citation.volume | 86 | |
dc.identifier.doi | 10.3109/09553000903567938 | |
dc.identifier.pmid | 20397842 | |
dc.identifier.scopus | 2-s2.0-77951262219 | |
dc.identifier.wos | 000276767500004 | |
dc.citation.spage | 376 | |
dc.citation.epage | 383 | |
dc.type.version | publishedVersion | sr |
dc.citation.rank | aM21 |