PMID: 40765Sep 1, 1979

Rodent models of the human isoniazid-acetylator polymorphism

Drug Metabolism and Disposition : the Biological Fate of Chemicals
R H Tannen, W W Weber

Abstract

Inbred strains and subpopulations of rats, laboratory mice, and deer mice were examined for individual variation in the ability to metabolize several arylamines (p-aminobenzoic acid, sulfamethazine, aniline, alpha-naphthylamine, and aminofluorene) by N-acetylation. Individual differences within species were found to be dependent upon the tissue source of N-acetyltransferase activity and the acetyl acceptor employed. Long-Evans rats possessed about 2-fold more p-aminobenzoic acid N-acetyltransferase activity in blood and liver than Sprague-Dawley rats; no strain differences could be found with sulfamethazine. Nine strains of laboratory mice (Mus musculus) were found to have considerable liver p-aminobenzoic acid N-acetyltransferase activity but only slight activity towards sulfamethazine. No strain differences were apparent in regard to liver N-acetyltransferase activity. Blood p-aminobenzoic acid N-acetyltransferase activity was distinctly polymorphic in laboratory mice; of the nine strains tested, only A/J mice did not have this activity. Partially inbred deer mice (Peromyscus maniculatus) showed a narrower phenotypic range than random-bred stock from which they were obtained, which suggests the existence of distinct subpopula...Continue Reading

Related Concepts

Aniline
Nat1
Mice, Inbred BALB C
NAT2 protein, human
NAT1
Inbred Strain
House mice
Family Dipodidae
Peromyscus
Mice, Inbred DBA

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