Linked Life Data

9407586

Source:http://linkedlifedata.com/resource/pubmed/id/9407586

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1998-1-29
pubmed:abstractText
Pregnant ICR mice were immersed in water at 42 degrees C for up to 15 min on Day 8.5 of gestation (plug day = Day 0), and their term fetuses were double stained with alcian blue and alizarin red S for skeletal examination. Heat exposure for 15 min induced homeotic vertebral transformations in more than one-third of the living fetuses, in which the morphologic identity of vertebrae (T6-S1) was shifted anteriorly by one or two segmental levels. The frequency of fetuses with vertebral transformations and the degree of the shift of vertebral identity were dependent on the length of heat exposure. The expression domains of Hoxa-7, Hoxc-8, and Hoxc-9 genes as examined by whole mount in situ hybridization were found to be shifted anteriorly in heated embryos. The heat-induced shifts of Hox gene expression domains were consistent with the observed vertebral transformations and suggested correlation or colinearity with the clustered organization of the Hox genes. The result of the present study indicates that a brief heat shock at a critical stage of differentiation can interfere with the normal establishment of Hox codes and subsequently, perturb the specification of vertebral identity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0890-6238
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
761-70
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:articleTitle
Heat shock-induced homeotic transformations of the axial skeleton and associated shifts of Hox gene expression domains in mouse embryos.
pubmed:affiliation
Department of Anatomy and Developmental Biology, Kyoto University Faculty of Medicine, Japan.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't