Toxic effects of vanadium compounds on biological parameters of embryos and adults of zebrafish (Danio rerio)

ABSTRACT The toxic effects of sodium metavanadate (MV), vanadium pentoxide (PV) and oxovanadium sulfate (SV), potential antidiabetic drug, on embryos and adults of zebrafish (Danio rerio) were evaluated. Embryos were exposed to concentrations of 10-1000μg/mL for evaluation of 96-h LC50 and their teratogenic effects. Adults were exposed to 10 and 20μg/mL of the same compounds to evaluate behavioral changes related to chemical exposure and mortality. The 96-h LC50 were 22.48, 53.62, and 74.14µg/mL for MV, SV, and PV, respectively. Mortality of 100% was observed at the concentrations of 400-1000μg/mL of the three compounds. The teratogenic effects most observed (P