The acute lethality and endocrine effect of 1,2,3,7,8-PeCDD in juvenile goldfish (Carassius auratus) in vivo.
1,2,3,7,8-PeCDD was administrated to juvenile goldfish (Carassius auratus) by peritoneal injections to explore the acute lethality and endocrine effects of 1,2,3,7,8-PeCDD in vivo. The value of acute median lethal dosage (LD50) of 1,2,3,7,8-PeCDD was determined in acute lethality tests. The endocrine effect of 1,2,3,7,8-PeCDD, whose exposed concentrations were determined based on the LD50 (1.84 mg/kg), was studied by measuring the plasma vitellogenin (Vtg) content in juvenile male goldfish with enzyme-linked immunosorbent assays (ELISA). Due to its significant induction of the plasma Vtg after one week's exposure in vivo in the 1/2 LD50 and LD30 groups, 1,2,3,7,8-PeCDD might be one of the important contributors to the estrogenic effect of PCDDs in the environment. The values of 1/2 LD50 and LD30 were within the range of the effective dosages of 1,2,3,7,8-PeCDD, indicating that there was a certain relationship between the estrogenic effective dosages and the LD50.
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. yang28yongbin@163.com
Yongbin
Y
Yang
Zhengtao
Z
Liu
Minghui
M
Zheng
Yanyan
Y
Zhao
Liang
L
Wang
Wei
W
Sun
Feng
F
Xiao
D000818:Animals; D052244:Endocrine Disruptors / Q000633:toxicity*; D004968:Estrogens, Non-Steroidal / Q000633:toxicity*; D006054:Goldfish / Q000097:blood*; D007928:Lethal Dose 50; D008297:Male; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000633:toxicity; D014819:Vitellogenins / Q000097:blood*; D014874:Water Pollutants, Chemical / Q000633:toxicity*
D052244:Endocrine Disruptors; D004968:Estrogens, Non-Steroidal; D000072317:Polychlorinated Dibenzodioxins; D014819:Vitellogenins; D014874:Water Pollutants, Chemical; C051452:1,2,3,7,8-pentachlorodibenzo-p-dioxin