ID Number		1944
Study Type		In Vivo
Model		1800 MHz (GSM) exposure to rabbits and analysis of otoacoustic emissions
Details		New Zealand rabbits (pregnant and non-pregnant) were exposed to 1800 MHz (GSM) RF for 15 minutes/day for 7 days using a mobile phone as an exposure source. Distortion product otoacoustic emission amplitudes were decreased in non-pregnant animals to a greater extent than in pregnant animals following exposure. The authors suggest prolonged exposure may affect DPOAE amplitude. In a related study, the authors exposed infant rabbits as above (7 days during the gestational period) and an additional 14 days after birth. The authors report that exposure and possible elevated temperatures in the ear canal decreased measured DPOAE amplitudes, especially at 4.0-6.0 kHz during extrauterine infancy. The authors suggest that during the intrauterine period, water in the middle ear, inner ear, and amnion fluid may play a protective role in absorbing RF energy. They suggest infants and children should not use mobile phones. In a related study, the authors exposed young (1 month) and old (13 month) rabbits as above and reported adult rats were more prone to DPOAE abnormalities from exposure than young rabbits
Findings		Effects
Status		Completed With Publication
Principal Investigator		Gazi University, Ankara, Turkey
Funding Agency		Private/Instit.
Country		TURKEY
References		Budak, GG et al. Int J Pediatr Otorhinolaryngol, (2009) 73:1143-1147 Budak, GG et al. Clin Invest Med, (2009) 32:E112-E116 Budak, GG et al. In J Pediatr Otorhinolaryngol, (2009) 73:391-399
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