Stress-induced transcriptional changes and DNA damage associated with bis(2-ethylhexyl) adipate exposure in Zebrafish (Danio rerio) larvae

Abstract

The present study evaluates potential toxic effects of bis(2-ethylhexyl) adipate (DEHA) plasticizer to larval (72 h post fertilization) zebrafish (Danio rerio) by analyzing changes in expression levels of stress-related genes (p53, rad51 and xrcc5) and assessing possible DNA damage of DEHA in larvae. the lethal concentration for 50% mortality (LC50) in larval zebrafish exposed for 96 h to 0-200 mg L-1 DEHA was 89.9 +/- 8.03 mg L-1. A concentration-dependent increase in DNA strand breaks was detected in cells from larvae exposed for 96 h to DEHA. There were some significant differences in induction of stress-related genes in larvae exposed to DEHA relative to control.