Tissue concentrations of polybrominated compounds in Chinese sturgeon (Acipenser sinensis): origin, hepatic sequestration, and maternal transfer.
Identifieur interne : 000337 ( Ncbi/Curation ); précédent : 000336; suivant : 000338Tissue concentrations of polybrominated compounds in Chinese sturgeon (Acipenser sinensis): origin, hepatic sequestration, and maternal transfer.
Auteurs : Kun Zhang [République populaire de Chine] ; Yi Wan ; John P. Giesy ; Michael H W. Lam ; Steve Wiseman ; Paul D. Jones ; Jianying HuSource :
- Environmental science & technology [ 1520-5851 ] ; 2010.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Halogenated Diphenyl Ethers, Water Pollutants, Chemical.
- metabolism : Fishes, Liver, Ovum.
- Animals, Environmental Monitoring, Female, Male, Maternal Exposure.
Abstract
Information on concentrations of polybrominated compounds in various tissues of wild fish is limited. Concentrations of polybrominated diphenyl ethers (PBDEs), methoxylated PBDEs (MeO-PBDEs), and hydroxylated PBDEs (OH-PBDEs) were measured in 12 organs and eggs of 17 female Chinese sturgeon (Acipenser sinensis). The highest concentrations of PBDEs (42.8+/-39.4 ng/g ww), and MeO-PBDEs (135+/-63.6 pg/g ww) occurred in adipose followed by liver (PBDEs: 25.0+/-27.0 ng/g ww, MeO-PBDEs: 32.3+/-29.1 pg/g ww) and eggs (PBDEs: 21.2+/-19.4 ng/g ww, MeO-PBDEs: 120+/-119 pg/g ww), and the highest concentration of OH-PBDEs was observed in liver (185+/-174 pg/g ww) and eggs (178+/-294 pg/g ww). The lack of in vitro transformation of 6-MeO-BDE47 or BDE47 by microsomes prepared from Chinese sturgeon liver suggests that most 6-OH-BDE47 was directly accumulated as a natural product. Lipid-normalization revealed preferential accumulation of PBDEs in liver, and ratios of concentrations between eggs and liver were 0.10+/-0.11 to 0.22+/-0.26, which was lower than that for MeO-PBDEs (6-MeO-BDE47: 0.57+/-0.60, 2'-MeO-BDE68: 0.65+/-0.85) and 6-OH-BDE47 (0.59+/-0.51). Concentrations of PBDEs were negatively correlated with age, but no significant relationships between concentrations of OH-PBDEs or MeO-PBDEs and age were observed.
DOI: 10.1021/es100348g
PubMed: 20604581
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pubmed:20604581Le document en format XML
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<front><div type="abstract" xml:lang="en">Information on concentrations of polybrominated compounds in various tissues of wild fish is limited. Concentrations of polybrominated diphenyl ethers (PBDEs), methoxylated PBDEs (MeO-PBDEs), and hydroxylated PBDEs (OH-PBDEs) were measured in 12 organs and eggs of 17 female Chinese sturgeon (Acipenser sinensis). The highest concentrations of PBDEs (42.8+/-39.4 ng/g ww), and MeO-PBDEs (135+/-63.6 pg/g ww) occurred in adipose followed by liver (PBDEs: 25.0+/-27.0 ng/g ww, MeO-PBDEs: 32.3+/-29.1 pg/g ww) and eggs (PBDEs: 21.2+/-19.4 ng/g ww, MeO-PBDEs: 120+/-119 pg/g ww), and the highest concentration of OH-PBDEs was observed in liver (185+/-174 pg/g ww) and eggs (178+/-294 pg/g ww). The lack of in vitro transformation of 6-MeO-BDE47 or BDE47 by microsomes prepared from Chinese sturgeon liver suggests that most 6-OH-BDE47 was directly accumulated as a natural product. Lipid-normalization revealed preferential accumulation of PBDEs in liver, and ratios of concentrations between eggs and liver were 0.10+/-0.11 to 0.22+/-0.26, which was lower than that for MeO-PBDEs (6-MeO-BDE47: 0.57+/-0.60, 2'-MeO-BDE68: 0.65+/-0.85) and 6-OH-BDE47 (0.59+/-0.51). Concentrations of PBDEs were negatively correlated with age, but no significant relationships between concentrations of OH-PBDEs or MeO-PBDEs and age were observed.</div>
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