Protection against cadmium-induced limb malformations by pretreatment with cadmium or mercury

Autor: Vergil H. Ferm, W. M. Layton
Rok vydání: 1980
Předmět:
Zdroj: Teratology. 21:357-360
ISSN: 1096-9926
0040-3709
DOI: 10.1002/tera.1420210312
Popis: Administration of 12 μmol/kg of cadmium sulfate ip to C57BL/6J mice within 3 weeks prior to pregnancy significantly reduced the incidence of limb malformations induced by 6 μrnol/kg of cadmium sulfate given ip on day 9 of pregnancy. In another experiment it was shown that administration of 6 μmol/kg or 12 μmol/kg of mercuric acetate on day 6 of gestation significantly reduced the incidence of limb malformations induced by 6 μmol/kg of cadmium given on day 9. It is postulated that this protective effect is due to the induction of increased maternal synthesis of a metal binding protein, probably metallothionein. This effect may be important in the design and interpretation of teratogenicity tests and in the evaluation of teratogenic risks to human populations chronically exposed to metals.
Databáze: OpenAIRE