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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Li, Jing Lin, Kuangfei Zhang, Wei Liu, Kou Liang, Jun |
| Description | Author Affiliation: Zhang W ( State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237, China); Liu K ( State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237, China); Li J ( State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237, China); Liang J ( State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237, China); Lin K ( State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237, China) |
| Abstract | Lead (Pb) and decabromodiphenyl ether (BDE209) are the mainly co-existed contaminants at e-waste recycling sites. The potential toxicity of Pb (250 µg g(-1)) to earthworm Eisenia fetida in the presence of BDE209 (1, 10 and 100 µg g(-1)) was determined during 14-d incubation period. Compared to Pb treatment alone, the co-exposure with 1 µg g(-1) BDE209 barely affected Pb uptake, subcellular partitioning and gene expression; however, histopathological changes in earthworms' body wall (epidermal, circular and longitudinal muscles) demonstrated that 10 and 100 µg g(-1) BDE209 additions enhanced Pb uptake and altered its subcellular partitioning, indicating that Pb redistributed from fractions E (cell debris) and D (metal-rich granules) to fraction C (cytosols); Additionally, BDE209 supply significantly inhibited (p<0.05) the induction of SOD (superoxide dismutase) and CAT (catalase) gene expressions (maximum down-regulation 59% for SOD gene at Pb+100 µg g(-1) BDE209 and 89% for CAT gene at Pb+10 µg g(-1) BDE209), while facilitated (p<0.05) Hsp90 (heat shock protein 90) gene expression with maximum induction rate of 120% after exposure to Pb+10 µg g(-1) BDE209. These findings illustrate the importance of considering environmental BDE209 co-exposure when assessing Pb bioaccumulation and toxicity in multi-contaminated soil ecosystems. |
| ISSN | 03043894 |
| Volume Number | 300 |
| e-ISSN | 18733336 |
| Journal | Journal of Hazardous Materials |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-12-30 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Halogenated Diphenyl Ethers Pharmacology Lead Metabolism Toxicity Mutagens Oligochaeta Genetics Soil Pollutants Subcellular Fractions Animals Catalase Biosynthesis Cytosol Electronics Gene Expression Drug Effects Hsp90 Heat-shock Proteins Industrial Waste Chemistry Superoxide Dismutase Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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