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Int J Psychophysiol. 2000 Aug;37(2):195-205.

Chronic stress in pregnant rats: effects on growth rate, anxiety and memory capabilities of the offspring.

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  • 1Universit√© de Rouen, Facult√© des Sciences, UPRES PSY. CO 1780, Laboratoire de Neurobiologie de l'Apprentissage, 76821 Cedex, Mont-Saint-Aignan, France.

Abstract

Female rats were repeatedly stressed for 10 periods of 15 min by the presence of a cat, at the 10th (S10) or the 19th (S19) gestational day. The litter from stressed females often contained a majority of males or a majority of females, especially in the S19 group. The death of pups was dramatically high in the S19 group and, compared with controls, growth of the surviving animals was slower. When adult, their long-term memory was altered and they exhibited an aversive behavior relative to wide areas. Moreover, cognitive alterations were revealed by the low level of exploration and the inability to rapidly process the relevant environmental cues. These deficits resemble those of psychiatric patients who had been submitted to pre-natal stress.

PMID:
10832006
[PubMed - indexed for MEDLINE]
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