Dithiocarbamates and prevention of cadmium teratogenesis in the hamster

Teratology. 1990 Sep;42(3):243-51. doi: 10.1002/tera.1420420308.

Abstract

Certain dithiocarbamates (DTC) have been reported to protect against cadmium (Cd)-induced lethality and to decrease Cd body burden. The present study evaluated the influence of sodium N-benzyl-D-glucamine dithiocarbamate, sodium N-di(hydroxyethyl)amine dithiocarbamate, sodium 4-carboxyamidopiperidine-N-dithiocarbamate, and sodium N-methyl-D-glucamine dithiocarbamate on Cd-induced teratogenesis in the hamster. When given as a single ip injection at 2.2 mmol/kg 15 min prior to iv CdCl2 (2 mg/kg), all of the DTC afforded significant protection against Cd-induced developmental toxicity and reduced kidney [Cd] in the dam. Maternal liver [Cd] was reduced with the glucamine and dihydroxyethyl amine analogs, but treatment with the piperidine failed to influence hepatic [Cd]. Pretreatment of the dams with DTC 24 hr prior to Cd challenge failed to protect against Cd-induced embryotoxicity, and provided minimal, if any, reduction in renal or hepatic [Cd]. Pretreatment with the N-methyl-D-glucamine congener 24 hr prior to Cd exposure increased embryolethality. The dose-time relationships found here suggest that pharmacologically effective levels of these DTC decline within 24 hr of treatment and that induction of metallothionein does not play a major role in DTC antagonism of Cd poisoning.

Publication types

  • Comparative Study
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Cadmium Poisoning / drug therapy
  • Cadmium Poisoning / prevention & control*
  • Cricetinae
  • Female
  • Kidney / abnormalities
  • Kidney / drug effects
  • Liver / abnormalities
  • Liver / drug effects
  • Male
  • Maternal-Fetal Exchange
  • Mesocricetus
  • Metallothionein / metabolism
  • Pregnancy
  • Thiocarbamates / pharmacology*
  • Thiocarbamates / therapeutic use

Substances

  • Thiocarbamates
  • Metallothionein