Abstract
The influence of pivalic acid (PIV), a compound often used to make pro-drugs, and of the structurally related trichloroacetic acid (TCA), on several hepatic and renal enzymes was investigated in Sprague-Dawley rats, following a 4-day treatment period. The PIV and TCA treatments resulted in a similar and selective induction (2–3 times) of peroxisomal palmitoyl-CoA oxidase and the cytochrome P-450 4A dependent microsomal (ω)- and (ω-1)-lauric acid activities, both in liver and kidney. Western blot analysis of liver and kidney microsomes from PIV- and TCA-treated rats, using antibody to the P-450 4A1, revealed induction of members of the P-450 4A subfamily. These results suggest that PIV, like TCA, is a renal and hepatic peroxisome proliferator in rats, and further support the previously indicated close association between the peroxisomal fatty acid β-oxidation enzymes and microsomal P-450 4A subfamily enzymes.
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Zanelli, U., Puccini, P., Acerbi, D. et al. Induction of peroxisomal β-oxidation and P-450 4A-dependent activities by pivalic and trichloroacetic acid in rat liver and kidney. Arch Toxicol 70, 145–149 (1996). https://doi.org/10.1007/s002040050253
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DOI: https://doi.org/10.1007/s002040050253