Abstract：
:Juvenile turbot (Scophthalmus maximus) were injected intraperitoneally with either corn oil or 5 mg/kg benzo[a]pyrene (BaP) dissolved in corn oil and sampled I and 3 days after injection. After 1 day, no elevation of 7-ethoxyresorufin O-deethylase (EROD) activity was observed, however bile metabolites (BaP-7,8 dihydrodiol representing 70% of the total metabolites) and a single hepatic DNA adduct spot (0.47 adducts/10(8) nucleotides) identified by 32P-postlabelling were formed. No BaP metabolites or DNA adducts were observed in either control or carrier control fish. Fish sampled after 3 days reported 5-fold higher (P < 0.05) levels of EROD activity, a shift in the bile metabolite profile towards BaP phenol formation (1OH and 30H BaP comprising up to 60% of total metabolites detected) and the formation of two adduct spots (0.86 and 0.71 adducts/10(8) nucleotides). These results show that BaP can be metabolised and form hydrophobic DNA adducts in turbot without EROD elevation. Following EROD elevation, a shift in the profile of both BaP metabolites and BaP metabolite-DNA interactions occurs indicative of other oxidative processes.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Telli-Karakoç F,Ruddock PJ,Bird DJ,Hewer A,Van Schanke A,Phillips DH,Peters LDdoi
10.1016/s0141-1136(02)00192-7keywords:
subject
Has Abstractpub_date
2002-09-01 00:00:00pages
511-5issue
3-5eissn
0141-1136issn
1879-0291pii
S0141-1136(02)00192-7journal_volume
54pub_type
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journal_title：Marine environmental research
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journal_title：Marine environmental research
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journal_title：Marine environmental research
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