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Possible combined effects of 900 MHZ continuous-wave electromagnetic fields and gentamicin on the auditory system of rats

TitlePossible combined effects of 900 MHZ continuous-wave electromagnetic fields and gentamicin on the auditory system of rats
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2007
AuthorsParazzini, M., Galloni P, Piscitelli Marta, Pinto Rosanna, Lovisolo G.A., Tognola G., Ravazzani P., and Marino Carmela
JournalRadiation Research
Volume167
Pagination600-605
ISSN00337587
Keywordsanimal, animal experiment, Animals, article, auditory system, cochlea, drug effect, electromagnetic field, Electromagnetic Fields, experimental study, gentamicin, Gentamicins, hair cell, hearing, male, nonhuman, otoacoustic emission, physiology, priority journal, Radiation exposure, rat, Rats, Rattus, Sprague Dawley rat, Sprague-Dawley
Abstract

The aim of this study was to evaluate the cochlear functionality of Sprague-Dawley rats exposed to electromagnetic fields at 900 MHz and to gentamicin by distortion product otoacoustic emissions, which are a well-known indicator of the status of the cochlea's outer hair cells. A population of 32 rats was divided into four groups: group 1 was treated with daily intramuscular injections of 150 mg/kg body weight gentamicin for 15 days; group 2 was treated with daily intramuscular injections of 150 mg/kg body weight gentamicin for 15 days and exposed to electromagnetic fields; group 3 was exposed to electromagnetic fields; group 4 was sham-exposed. Rats were exposed 2 h/day, 5 days/week for 4 weeks at a local SAR of 4 W/kg in the ear (continuous wave at 900 MHz). Distortion product otoacoustic emissions tests were carried out before, during and after the combined exposure. The analysis of the data showed no subchronic exposure to electromagnetic fields on the inner auditory system of rats in either normal ears or ears exposed to a well-recognized pathological agent. © 2007 by Radiation Research Society.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-34249934681&doi=10.1667%2fRR0779.1&partnerID=40&md5=6a79aff8b86eb65bdf74984e29c4af3f
DOI10.1667/RR0779.1
Citation KeyParazzini2007600