Linked Life Data

1673871

Source:http://linkedlifedata.com/resource/pubmed/id/1673871

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1991-6-10
pubmed:abstractText
Five alkyl carbamates, methyl, ethyl, propyl, hydroxypropyl and ethylhexyl, were tested for initiating and promoting activity in rat liver. The test for initiating activity consisted of administering the carbamate by gavage to male Sprague--Dawley rats at either 6 or 18 h after a 2/3 partial hepatectomy. One week later, the rats received 500 ppm sodium phenobarbital in their drinking water until killed 10 weeks later. None of the carbamates at 1/5 the LD50 induced gamma-glutamyltranspeptidase (GGT)-positive foci, indicating the lack of initiating activity. The tumor promoting activity test consisted of initiation with 80 mmol/kg diethylnitrosamine administered 18 h after a partial hepatectomy. One week later, the rats received one of the the carbamates at either 1/10 or 1/20 the LD50 5 days per week until sacrificed 10 weeks later. The alkyl carbamates increased the volume of the foci, the percent of the liver occupied by the foci, the number of foci/cm3 (except ethylhexyl carbamate), and the number of foci/liver (except ethylhexyl carbamate). These results suggest that the alkyl carbamates are tumor promoters and not tumor initiators in rat liver.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0304-3835
pubmed:author
pubmed:issnType
Print
pubmed:volume
57
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
37-44
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Screen of five alkyl carbamates for initiating and promoting activity in rat liver.
pubmed:affiliation
Environmental Health Research and Testing, Inc., Cincinnati, OH 45245.
pubmed:publicationType
Journal Article