Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1988-10-3
pubmed:abstractText
Maternal stress during gestation can produce significant fetal and/or postnatal effects, and can enhance the teratogenicity of other agents. We have previously shown that restraint stress on gestational day 8 in CD-1 mice produces significant increases in encephaloceles and supernumerary and fused ribs. In the present study we have examined the effects of stress induced by restraint on individual days during the period of major organogenesis (days 6-14). Weight loss and stress-induced analgesia as assessed by the tail-flick method were used to determine the degree of stress induced by a 12-h restraint period. Restrained animals lost significantly more weight and had longer tail-flick latencies than the concurrent food and water deprived controls on all gestational days. Significant increases in embryo/fetal mortality were also observed in the offspring of restrained animals. An increased incidence of supernumerary ribs was found in mice restrained on days 7 and 8. Since maternal toxicity induced by chemical teratogens may be accompanied by a general increase in maternal stress, our data suggest that such stress may be an etiological factor in teratology bioassays in which dose levels are sufficiently high to induce overt maternal toxicity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0300-483X
pubmed:author
pubmed:issnType
Print
pubmed:volume
51
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
57-65
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Developmental effects of maternal stress in the CD-1 mouse induced by restraint on single days during the period of major organogenesis.
pubmed:affiliation
Health Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711.
pubmed:publicationType
Journal Article