Linked Life Data

8804696

Source:http://linkedlifedata.com/resource/pubmed/id/8804696

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1996-11-29
pubmed:abstractText
The BXSB-Yaa and BXSB-Yaa + inbred strains of mice differ primarily with respect to the Y chromosome, although there is evidence that they differ on several autosomal genes as well. Each strain has ectopic collections of neurons in neocortical layer I (ectopias), with a higher occurrence in males (58%) than females (42%). Conventionally reared mice from these strains were compared to mice that were transferred, as 8-cell embryos, into the uteri of non-autoimmune recipients, who gave birth to and reared the offspring. The transfer procedure did not change the incidence of ectopias in either sex. There were, however, major differences in behavior. Compared to conventionally reared controls, embryo transfer mice had greater behavioral asymmetry, poorer performance in a black-white discrimination, poorer Morris maze learning, better Lashley maze learning, and better performance in a two-way shuttlebox. Within the transfer groups, females differed as much as males, confirming our prior findings and supporting our thesis that the two strains differ on several autosomal genes in addition to the Y chromosome. These findings show that the intra-uterine environment can powerfully and selectively affect later behavior. When ectopic and non-ectopic mice were compared, BXSB-Yaa mice with neocortical ectopias were better able to learn the Morris spatial maze than non-ectopic controls; this was true whether the mice were conventionally reared or embryo transferred. In contrast, BXSB-Yaa + ectopic mice did not differ from their controls if conventionally reared, but were much worse than controls if embryo transferred.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0165-3806
pubmed:author
pubmed:issnType
Print
pubmed:day
31
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
100-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Effects of embryo transfer and cortical ectopias upon the behavior of BXSB-Yaa and BXSB-Yaa + mice.
pubmed:affiliation
Biobehavioral Sciences Graduate Degree Program, University of Connecticut, Storrs 06269-4154, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.