Record Display for the EPA National Library Catalog

RECORD NUMBER: 7 OF 24

OLS Field Name OLS Field Data
Main Title Dose-Dependent Disposition of Sodium Arsenate in Mice Following Acute Oral Exposure.
Author Hughes, M. F. ; Menache, M. ; Thompson, D. J. ;
CORP Author ManTech Environmental Technology, Inc., Research Triangle Park, NC. ;Duke Univ. Medical Center, Durham, NC. Center for Extrapolation Modelling.;Health Effects Research Lab., Research Triangle Park, NC.
Publisher cJan 94
Year Published 1994
Report Number EPA-68-02-4450 ;EPA-68-D2-0056; EPA/600/J-94/329;
Stock Number PB94-202140
Additional Subjects Sodium inorganic compounds ; Arsenates ; Metabolism ; Toxicity ; Dose-response relationships ; Acute exposure ; Oral administration ; Mice ; Biological effects ; Reprints ; MMA(Methylarsonic acid) ; DMA(Dimethylarsonic acid) ; Arsenate disposition
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB94-202140 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/11/1994
Collation 12p
Abstract
Several interpretive reviews on the effects of arsenic have suggested there is a threshold dose, at which toxic or carcinogenic effects change disproportionately with relatively small changes in the dose of arsenic. A threshold (nonlinear) response may be related in part to the potential saturation of arsenic methylation, which could lead to increases in the reactive trivalent arsenicals. Therefore, the objective of the present study was to examine the effect of dose on the in vivo disposition of arsenate after oral administration in mice. A refined chromatographic method was used to examine excretion of metabolites over several time points, and the degree of linearity of the various dose-response relationships was assessed.