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RECORD NUMBER: 3 OF 13

Main Title Dibromoethane Effects on the Induction of Gamma-Glutamyl-Transpeptidase Positive Foci in Rat Liver.
Author Milks, Michael M. ; Wilt, Stephen R. ; Ali, Ibrahim ; Pereira, Michael A. ; Couri, Daniel ;
CORP Author Ohio State Univ., Columbus. Coll. of Medicine.;Health Effects Research Lab., Research Traingle Park, NC.
Year Published 1982
Report Number EPA-CR-807378; EPA-600/J-82-272;
Stock Number PB83-157552
Additional Subjects Toxicology ; Bioassay ; Rats ; Liver ; Pathology ; Ingestion(Biology) ; Dosage ; Reprints ; Ethane/dibromo ; Glutamyl transpeptidase
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NTIS  PB83-157552 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Abstract
The initiating and promoting activities of 1.2-dibromoethane in rat liver were investigated using the enzyme-altered foci bioassay. The incidence of gamma-glutamyl-transpeptidase (GGT)-positive foci was used as an early histochemical marker for hepatocarcinogenesis. To determine the initiating activity of 1.2-dibromoethane, the halogenated hydrocarbon was administered orally in corn oil as single or multiple doses (60 or 120 mg/kg) either before or after partial hepatectomy. The animals were then given a promoting regimen of 500 ppm phenobarbital in their drinking water. No increase in the incidence of GGT-positive foci was observed in any of the 1.2-dibromoethane initiation groups.