Early Life Stage Toxicity of 2,3,7,8-Tetrachlorodibenzo-p-dioxin in Zebrafish (Danio rerio)

Sex-dependent accumulation and maternal transfer of Dechlorane Plus flame retardant in fish from an electronic waste recycling site in South China

“…Early life stages of many oviparous species exhibit the greatest toxicological sensitivity to organic contaminants, and various organochlorine compounds have been shown to cause embryotoxic effects in fish (Henry et al, 1997;Westerlund et al, 1999;Wassenberg and Di Giulio, 2004;Heiden et al, 2005). Maternal transfer of various lipophilic organic chemicals such as polychlorinated biphenyls (PCBs) and PBDEs in fish has been observed both in laboratory experiments and field research (Miller, 1993;Russell et al, 1999;Heiden et al, 2005;Nyholm et al, 2008;Ostrach et al, 2008;Yu et al, 2011).…”

2,3,7,8-Tetrachlorodibenzo-p-dioxin induces apoptotic cell death and cytochrome P4501A expression in developing Fundulus heteroclitus embryos

“…An understanding of the mechanism of TCDD embryotoxicity in Fundulus will help us to determine mechanisms of resistance in these populations. Although TCDD embryotoxicity has been well characterized in several freshwater fish species Henry et al 1997;Elonen et al, 1998), there is little information on the sensitivity of marine fish to TCDD. Therefore, we determined the effects of TCDD on development, cell death, and CYP1A expression in the embryos of F. heteroclitus in order to characterize the response to TCDD in this important marine species.…”

Retene causes multifunctional transcriptomic changes in the heart of rainbow trout ( Oncorhynchus mykiss ) embryos

“…The AhR agonists disturb the development of the heart and the vasculature in fishes, and cardiovascular pathology is the first sign of dioxin-like toxicity in zebrafish (Danio rerio) and medaka (Oryzias latipes) (Henry et al, 1997,Hornung et al, 1999,Antkiewicz et al, 2005,Carney et al, 2006,Mehta et al, 2008,Plavicki et al, 2013,Scott, 2009). The most studied AhR agonist, TCDD, prevents cardiac valve formation, inhibits epicardial and proepicardial development, causes altered looping of the heart, and reduces the volume and number of cardiomyocytes in fishes (Hornung et al, 1999,Antkiewicz et al, 2005,Carney et al, 2006,Mehta et al, 2008,Plavicki et al, 2013.…”