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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Domínguez, Carmen Kuster, Marina Puchades, Rosa Cajaraville, Miren P. Atienza, Julia Maquieira, Angel López de Alda, Miren Aragón, Pilar Puy-Azurmendi, Eunate Bayona, Josep M. Porte, Cinta Barceló, Damià Villagrasa, Marta Ortiz-Zarragoitia, Maren Fernandes, Denise |
| Spatial Coverage | Europe |
| Description | Country affiliation: Spain Author Affiliation: Puy-Azurmendi E ( Laboratory of Cell Biology and Histology, Department of Zoology and Animal Cell Biology, University of the Basque Country, Sarriena z/g, E-48940 Leioa, Basque Country, Spain.) |
| Abstract | Endocrine disruptors (EDs) interfere with the development and functioning of the endocrine system, causing reproductive disturbance in aquatic wildlife. The aim of the present work was to determine the presence of EDs in sediments and to investigate possible exposure and effects of EDs in the estuary of the Urdaibai Biosphere Reserve (Gernika) in comparison with the Arriluze marina. For this, gonad histology, plasma vitellogenin (VTG) protein levels and mRNA levels of vitellogenin (vtg), cyp19 aromatases, estrogen receptor (er) and retinoid X receptor (rxr) were studied in Chelon labrosus. The presence of alkylphenols (APs) in fish bile was also assessed. In sediments, estrogenic hormones were below the detection limit and levels of bisphenol A were very low. In Gernika organotin compounds were low but in Arriluze levels of up to 12 µg/g were found. Moderate levels of APs and phthalate levels of up to 8 µg/g were found in sediments. In fish, a high prevalence up to 33% of intersex gonads was found in Gernika, whereas only one intersex was found in Arriluze. Accordingly, mullets from Gernika showed higher concentrations of APs in bile. VTG protein levels were detected not only in females but also in some undifferentiated, male and intersex fish. mRNA of vtg was detected in one male from Gernika. mRNA of er and rxr showed significant differences between seasons. In conclusion, the present study demonstrated that C. labrosus from the Urdaibai estuary were exposed to EDs and showed clear signs of endocrine disruption. |
| ISSN | 00489697 |
| Volume Number | 443 |
| e-ISSN | 18791026 |
| Journal | Science of The Total Environment |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2013-01-15 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Endocrine Disruptors Toxicity Smegmamorpha Water Pollutants, Chemical Animals Base Sequence Dna Primers Disorders Of Sex Development Enzyme-linked Immunosorbent Assay Estuaries Europe Female Gas Chromatography-mass Spectrometry Geologic Sediments Chemistry Male Rna, Messenger Genetics Transcription, Genetic Vitellogenins Blood Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Waste Management and Disposal Pollution Environmental Engineering |
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