Paper Information

Title: 

EFFECT OF VIBRATION STRESS ON SEXUALLY DIMORPHIC NUCLEUS (SDN) ON THE IMMATURE MALE WISTAR RAT

Type: POSTER
Author(s): YAGHMAEI P.*,MOHSENI KOUCHESFAHANI HOMA,PIRNIA A.
 
 *DEPARTMENT OF BIOLOGY, SCIENSE AND RESERCH BRENCH OF ISLAMIC AZAD UNIVERSITY
 
Name of Seminar: IRANIAN CONGRESS OF PHYSIOLOGY AND PHARMACOLOGY
Type of Seminar:  CONGRESS
Sponsor:  PHYSIOLOGY AND PHARMACOLOGY SOCIETY, MASHHAD UNIVERSITY OF MEDICAL SCIENCE
Date:  2007Volume 18
 
 
Abstract: 

Introduction: The sexually dimorphic nucleus in the preoptic area (SDN-POA) of hypothalamus is a cluster of cells that size, shape and their cellular morphology is relate to sex and age. This area responsible to sexual differentiation of brain. This cluster of cells contains about twice as many cells in male compared to female.
Methods: In this research, immature male Wistar rats (15 days) during 3 weeks period and daily for 15 minute by Shaker layed under vibration (with 500 mot/min frequency). After the end of this period, we evaluate microscopic studies on the prepared sections.
Results: Vibration stress affected and damage on sexually dimorphic nucleus in the preoptic area (SDN-POA) of hypothalamus in immature male wistar rat and significantly decreasea the volum of this nucleus that can lead to homosexuality and other sexually behavioral disorderes.

 
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