Paper Information

Title:  EFFECT OF FETAL LIFE EXPOSURE TO EXTREMELY LOW FREQUENCY ELECTROMAGNETIC FIELDS (5,25HZ) ON ADULT MALE RAT SOCIAL BEHAVIOR
Type: POSTER
Author(s): MEHRANFARD NASRIN*,RASTGAR K.
 
 *DEPARTMENT OF PHYSIOLOGY, SHIRAZ UNIVERSITY OF MEDICAL SCIENCES, SHIRAZ, IRAN
 
Name of Seminar: IRANIAN CONGRESS OF PHYSIOLOGY AND PHARMACOLOGY
Type of Seminar:  CONGRESS
Sponsor:  PHYSIOLOGY AND PHARMACOLOGY SOCIETY, MASHHAD UNIVERSITY OF MEDICAL SCIENCE
Date:  2009Volume 19
 
 
Abstract: 

The present experiment was undertaken to evaluate the possible effects of exposure with extremely low frequency electromagnetic field (EMF) with 5 and 25 Hz frequencies during the fetal life on adult male rat social behavior. To achieve this goal pregnant rats were divided randomly into 6 groups .Groups consist of: Group 1 (sham), Group 2 (control), Group 3 (with frequency of 5 Hz and density of 500 μT), Group 4 (with frequency of 25 Hz and density of 500 μT), Group 5 (with frequency of 5 Hz and density of 50 μT), Group 6 (with frequency of 25 Hz and density of 50 μT). Pregnant rats were exposed with EMF for 4 hrs/day from day 1 to 15 of gestation. Selected Male pups for the experiment were kept together until age of 3 months. Then social behavior's tests were carried out in a large open field apparatus. This test was performed 10 min/day for 3 days and frequency, duration and latency (the time of the onset of the first social behavior) of social behaviors were evaluated. Five behaviors were evaluated: 1) Chasing, 2) Mounting, 3) General activity (locomotion), 4) Social grooming, 5) Self grooming. The results were as follows: a) Stress at pregnancy period doesn't disturb social behavior of the offspring but it can causes hyperactivity and decreases self grooming (decrease attention span) in adulthood. b) EMF does not produce antisocial behavior (aggression). c) EMF at (25/50) increases duration and frequency of social grooming and decreases latency of social grooming.

 
Keyword(s): EXTREMELY LOW FREQUENCY ELECTROMAGNETIC FIELD (EMF), FETAL LIFE, SOCIAL BEHAVIOR,RAT
 
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