Chen FC, Cavanagh JB. Factors affecting neurotoxicity by p-bromophenylacetylurea in rats.
BRITISH JOURNAL OF EXPERIMENTAL PATHOLOGY 1971;
52:315-21. [PMID:
5090688 PMCID:
PMC2072331]
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Abstract
Adult rats more than 9-10 weeks old are more susceptible to neurointoxication by p-bromophenylacetylurea than young, more actively growing rats. There is no difference in sensitivity between the sexes.
Partial hepatectomy and damaging the liver with carbon tetrachloride before administering pBPAU are procedures which enhance the degree of neurotoxicity. These studies suggest that the substance is toxic per se, and that it is probably detoxicated by the liver.
Animals treated with sodium phenobarbital both before giving pBPAU and afterwards showed a slightly increased degree of neurointoxication. Pretreatment only with sodium phenobarbital before giving pBPAU did not alter the degree of neurotoxicity. This suggests that the liver microsomal enzymes induced by phenobarbital do not play a direct role in the hepatic metabolism of pBPAU.
pBPAU is not an inhibitor of acetylcholine acetyl-hydrolase (EC No. 3.1.1.7) or benzoylcholine hydrolase (EC No. 3.1.1.9).
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