Mar 15, 1984

Effect of thiocarbonyl compounds on alpha-naphthylisothiocyanate-induced hepatotoxicity and the urinary excretion of [35S]alpha-naphthylisothiocyanate in the rat

Toxicology and Applied Pharmacology
G J TraigerR P Hanzlik

Abstract

The effect of disulfiram (DSF), sodium diethyldithiocarbamate (DDTC), methyl diethyldithiocarbamate (Me-DDTC), and ethionamide on the hepatotoxic response of alpha-naphthylisothiocyanate (ANIT) was studied in the rat. The hyperbilirubinemic response of ANIT was significantly inhibited by ip or po DSF pretreatment. A more marked inhibition of toxicity occurred when DSF was given via ip injection. DDTC, Me-DDTC, and ethionamide significantly inhibited ANIT-induced hyperbilirubinemia. Me-DDTC is approximately three times more potent than DDTC as an inhibitor of toxicity. Approximately 16% of a dose of [35S]ANIT was excreted in the urine as inorganic sulfate 48 hr after dosing. Me-DDTC administered simultaneously with [35S]ANIT significantly reduced urinary [35S]sulfate excretion in the first 24 hr. Ethionamide reduced urinary [35S]sulfate excretion. Pretreatment with phenobarbital which stimulates toxicity in vivo increased urinary [35S]sulfate excretion 300% in the first 12 hr. Thus, this study shows that agents which sensitize or protect rats from the toxic effects of ANIT, correspondingly stimulate or inhibit the oxidative desulfuration of [35S]ANIT in vivo.

  • References26
  • Citations3

References

  • References26
  • Citations3

Citations

Mentioned in this Paper

Urine
Sulfates, Inorganic
Methyl diethyldithiocarbamate
Hyperbilirubinemia
1-Naphthylisothiocyanate
August Rats
Drug-Induced Acute Liver Injury
Ditiocarb Sodium
Ditiocarb, Tin(4+) Salt
Phenobarbital

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