Document Detail

Effects of perinatal stress on the anxiety-related behavior of the adolescence mouse.
MedLine Citation:
PMID:  16737926     Owner:  NLM     Status:  MEDLINE    
We evaluated the effects of sound noise or forced swim stress applied to pregnant mice or to neonatal mice on the anxiety-related behavior using the elevated plus-maze test performed during the age of 5 weeks. The forced swim stress applied at the late gestation period, days 10-18 of pregnancy, caused a significant reduction of the body weight gain of the dams. However, the anxiety-related behavior of the male and female offspring were not affected by the antenatal stress treatment. When the forced swim stress was applied to the neonatal mice during the late lactation period, 14-18 days after birth, the male mice showed an elevated level of anxiolytic behavior accompanying the reduction of the emotion-related motor activity. The anxiety-related behavior of the female mice was not affected by the stress treatment. Furthermore, we applied the sound noise or forced swim stress to the neonatal mice immediately after the weaning, 21-25 days after birth. The stress applied after the weaning period had no effect on the anxiety-related behavior. These results suggested that the stress applied during the lactation period, but not that during the antenatal period, nor after the weaning period, might have gender-dependently reduced the anxiety level of the male mouse. It was shown that the effects of perinatal stress on the anxiety-related behavior of the adolescent mouse varied according to the period of application and gender. The hypothesis that gender-dependent abnormalities in neurodevelopment might be caused by the excess stress applied to the breast-fed infant is of importance in elucidating the relationship between the psychoneurotic disorder in childhood and the environment stress of the breast-fed infant.
H Nishio; K Tokumo; T Hirai
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience     Volume:  24     ISSN:  0736-5748     ISO Abbreviation:  Int. J. Dev. Neurosci.     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-07-07     Completed Date:  2006-08-25     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8401784     Medline TA:  Int J Dev Neurosci     Country:  England    
Other Details:
Languages:  eng     Pagination:  263-8     Citation Subset:  IM    
Department of Molecular Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Hiroshima 729-0292, Japan.
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MeSH Terms
Age Factors
Analysis of Variance
Animals, Newborn
Anxiety / etiology,  physiopathology*
Behavior, Animal
Body Weight / physiology
Maze Learning / physiology
Prenatal Exposure Delayed Effects / physiopathology*
Sex Factors
Stress, Physiological / physiopathology*

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