4-tert-octylphenol and 17β-estradiol applied by feeding to flounder Platichthys flesus: induction of vitellogenin and accumulation in tissues

Autor: Bodil Korsgaard, Poul Bjerregaard, Louise Leonharder Madsen
Rok vydání: 2002
Předmět:
Zdroj: University of Southern Denmark
ISSN: 0141-1136
DOI: 10.1016/s0141-1136(02)00111-3
Popis: In order to simulate a possible natural administration route of xenoestrogens male flounder Platichthys flesus were exposed via the diet to the alkylphenol 4- tert -octylphenol. Treatment with 4- tert -octylphenol (10, 50 and 100 mg OP kg −1 BW) or 17β-estradiol (0.05 mg kg −1 BW) every second day during a period of 11 days resulted in a significant increase in plasma vitellogenin (Vtg) concentrations. The induction of Vtg was greatest in the fish receiving 50 mg OP kg −1 BW. A significant accumulation of 4- tert -octylphenol was found in liver and muscle tissue of the OP treated groups. The tissue concentrations of 4- tert -octylphenol and the plasma vitellogenin concentration were positively correlated. The results show that 4- tert -octylphenol accumulates in liver and muscles of flounder P. flesus , and exerts estrogenic effects such as vitellogenin induction.
Databáze: OpenAIRE