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Upsala Journal of Medical Sciences. 2010; Early Online, 1-6

Effect of radio-frequency electromagnetic radiations (RF-EMR) on passive avoidance behaviour and hippocampal morphology in Wistar rats

Domingo 31 de enero de 2010 · 1000 lecturas




Effect of radio-frequency electromagnetic radiations (RF-EMR)
on passive avoidance behaviour and hippocampal morphology in
Wistar rats

SAREESH NADUVIL NARAYANAN1, RAJU SURESH KUMAR1,
BHAGATH KUMAR POTU2, SATHEESHA NAYAK3,
P. GOPALAKRISHNA BHAT4 & MANEESH MAILANKOT5
1Department of Physiology, Melaka Manipal Medical College, Manipal University, Manipal 576104, India,,
2Department of Anatomy, Kasturba Medical College, Manipal University, Manipal 576104, India, 3Department of
Anatomy, Melaka Manipal Medical College, Manipal University, Manipal 576104, India, 4Department of
Biochemistry, Kasturba Medical College, Manipal University, Manipal 576104, India, and 5Department of
Biochemistry,
Melaka Manipal Medical College, Manipal University, Manipal 576104, India
Abstract
Introduction. The interaction of mobile phone radio-frequency electromagnetic radiation (RF-EMR) with the brain is a serious
concern of our society.
Objective. We evaluated the effect of RF-EMR from mobile phones on passive avoidance behaviour and hippocampal
morphology in rats.
Materials and methods. Healthy male albino Wistar rats were exposed to RF-EMR by giving 50 missed calls (within 1 hour) per
day for 4 weeks, keeping a GSM (0.9 GHz/1.8 GHz) mobile phone in vibratory mode (no ring tone) in the cage. After the
experimental period, passive avoidance behaviour and hippocampal morphology were studied.
Results. Passive avoidance behaviour was significantly affected in mobile phone RF-EMR-exposed rats demonstrated as shorter
entrance latency to the dark compartment when compared to the control rats. Marked morphological changes were also
observed in the CA3 region of the hippocampus of the mobile phone-exposed rats in comparison to the control rats.
Conclusion. Mobile phone RF-EMR exposure significantly altered the passive avoidance behaviour and hippocampal
morphology in rats.
Key words: Hippocampus, memory, mobile phone, passive avoidance, RF-EMR (radio-frequency electromagnetic radiation)

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