Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1979-9-1
pubmed:abstractText
Prior work has demonstrated that chromium trioxide is embryotoxic in hamsters if administered to pregnant animals early on the eighth gestation day. The major manifestations are cleft palate and an increased frequency of resorptions. In the present study a single iv dose (8 mg/kg) of chromium trioxide was injected into pregnant hamsters at 8 A.M. on either day 7, 8, 9, 10 or 11 of gestation in order to determine the effect of altering the time of treatment on embryotoxicity. Fetuses from females treated with chromium or demineralized-distilled water were collected on day 15 of gestation and were examined for the types and frequency of external and internal malformations. The number of resorption sites was recorded. Cleft palate, the major malformation detected, was produced only when chromium was administered on days 7, 8, or 9 of gestation. Since the frequency of resorptions and the incidence of cleft palate varied with the time of treatment it is concluded that the time at which chromium trioxide is injected into the pregnant hamster does influence embryotoxicity. The results suggest that an interference with embryonic growth may be an important factor in chromium-induced cleft palate in hamsters.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0040-3709
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
81-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
The effect of the time of administration of chromium trioxide on the embryotoxic response in hamsters.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.