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RECORD NUMBER: 1110 OF 1141

Main Title Tumorigenic Effect of Dimethylarsinic Acid in the Rat.
Author Johansen, M. G. ; McGowan, J. P. ; Tu, S. H. ; Shirachi, D. Y. ;
CORP Author University of the Pacific, Stockton, CA.;Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1984
Report Number EPA-R-807235; EPA/600/D-87/277;
Stock Number PB88-107271
Additional Subjects Arsenic ; Toxicity ; Kidney ; Rats ; Neoplasms ; Liver ; Carcinogens ; Reprints ; Tumor promoters ; Carcinogenesis ; Arsinic acid/dimethyl
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NTIS  PB88-107271 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 5p
Abstract The development of neoplasms in humans exposed to arsenic in the environment and in industry has been suggested by epidemiological and several recent animal studies. Sodium arsenite (AsIII) has been suggested. As a promoter of tumorigenesis in the kidney of diethylnitrosamine (DENA)-initiated rats. In chronic toxicity studies it was found that dimethylarsinic acid (DMA) was as toxic as the inorganic arsenics, AsIII and AsV (unpubished results). This was an unexpected finding, since it has been assumed from acute toxicity studies that DMA was an inactive metabolite. Since it has been shown by a number of investigators that inorganic arsenics are methylated to DMA, the results of the study with AsIII could have been due to a biotransformed methylated analogue. DMA. A two stage liver model for carcinogenesis was utilized to study the effects of DMA on DENA initiated rats. Data are presented here to suggest that DMA has a promoter carcinogen potential in both the kidney and liver. (Copyright (c) Proc. West. Pharmacol, Soc. 1984.)
Supplementary Notes Pub. in Proceedings of the Western Pharmacology Society, v27 p289-291 Feb 84. Sponsored by Health Effects Research Lab., Research Triangle Park, NC.
NTIS Title Notes Journal article.
Title Annotations Reprint: Tumorigenic Effect of Dimethylarsinic Acid in the Rat.
PUB Date Free Form c1984
Category Codes 57Y; 68G; 57O
NTIS Prices PC A02/MF A01
Primary Description 600/11
Document Type NT
Cataloging Source NTIS/MT
Control Number 735121345
Origin NTIS
Type CAT