Linked Life Data

3771736

Source:http://linkedlifedata.com/resource/pubmed/id/3771736

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1986-12-10
pubmed:abstractText
To investigate the axial skeletal dysmorphogenesis associated with exencephaly and facial abnormalities, two doses of cadmium chloride (4 mg/kg and 6 mg/kg) were administered subcutaneously to MF1 mice on day 7 of gestation (sperm-positive day = day 0). Fetuses were collected on day 18. Gross examination revealed a very high incidence of cranioschisis aperta with exencephaly, maxillary and mandibular hypoplasia, low-set microtia, edema, and growth retardation of fetuses in both treatment groups. Alizarin red S-stained and cleared skeletal preparations of these embryos revealed hypoplasia of the premaxilla, maxilla, nasal bone, zygoma, and mandible of the facial skeleton. The orbital plate represented the frontal bone. The vault of the skull was conspicuously absent. In cranioschisis, the exoccipitals had splayed and fused with the atlas. The basicranial bones were hypoplastic and crowded, thus reducing the cranial cavity. The vertebral bodies were more affected than the arches. Hemivertebrae and longitudinal fusion of centra and arches were also noted. The ribs were usually rudimentary. Agenesis, fusion, and forking of ribs were frequently observed. The sternebrae were rudimentary, bipartite, or longitudinally fused. These data clearly establish the association between neural tube and axial mesodermal abnormalities and emphasize the interdependence of the neurectoderm and mesoderm in normal morphogenesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0270-4145
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
245-58
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Exencephaly and axial skeletal dysmorphogenesis induced by maternal exposure to cadmium in the mouse.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't