Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1998-8-28
pubmed:abstractText
The aim of this study was to test the hypothesis that alterations in birth conditions, specifically vaginal birth vs. birth by Cesarean section (C-section) vs. birth by C-section with an added period of acute global anoxia, produces long-term differences in behavioral responses to stress or novelty in the rat at adulthood. In comparison to animals born by rapid C-section alone, animals born by C-section with 10 or 15 min of added anoxia were significantly more immobile during forced swim stress administered for 6 trials over several weeks. In a step-down passive avoidance task, there were no group differences in acquisition or retention of the avoidance response. However, when initially placed in the passive avoidance apparatus before delivery of shock, animals born by C-section with 15 min of anoxia required significantly more pretrials to step down from the wooden platform, than did vaginally born or C-sectioned animals. No group differences were observed on measures of exploratory behavior in an elevated plus-maze or of approach behavior either to food or to a novel object in an open field. These findings suggest that birth conditions which include a degree of perinatal hypoxia can contribute to variability in selective responses to stress and novelty in the adult rat.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0006-3126
pubmed:author
pubmed:issnType
Print
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
48-59
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Responses to stress and novelty in adult rats born vaginally, by cesarean section or by cesarean section with acute anoxia.
pubmed:affiliation
Department of Psychiatry, McGill University, and Douglas Hospital Research Centre, Montreal, Quebec, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't