English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/44068
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Chemical fate and biological effects of several endocrine disrupters compounds in two echinoderm species

AuthorsSugni, Michela; Tremolada, Paolo; Porte Visa, Cinta; Barbaglio, Alice; Bonasoro, Francesco; Candia Carnevali, Daniela M
KeywordsEDCs
Chemical fate
Hormones
Echinoderms
Reproduction
Regeneration
Issue Date2010
PublisherSpringer
CitationEcotoxicology
AbstractTwo echinoderm species, the sea urchin Paracentrotus lividus and the feather star Antedon mediterranea, were exposed for 28 days to several EDCs: three putative androgenic compounds, triphenyltin (TPT), fenarimol (FEN), methyltestosterone (MET), and two putative antiandrogenic compounds, p,p0-DDE (DDE) and cyproterone acetate (CPA). The exposure nominal concentrations were from 10 to 3000 ng L-1, depending on the compound. This paper is an attempt to join three different aspects coming from our ecotoxicological tests: (1) the chemical behaviour inside the experimental system; (2) the measured toxicological endpoints; (3) the biochemical responses, to which the measured endpoints may depend. The chemical fate of the different compounds was enquired by a modelling approach throughout the application of the ‘Aquarium model’. An estimation of the day-to-day concentration levels in water and biota were obtained together with the amount assumed each day by each animal (uptake in lg animal-1 d-1 or ng g-wet weight-1 d-1). The toxicological endpoints investigated deal with the reproductive potential (gonad maturation stage, gonad index and oocyte diameter) and with the regenerative potential (growth and histology). Almost all the compounds exerted some kind of effect at the tested concentrations, however TPT was the most effective in altering both reproductive and regenerative parameters (also at the concentration of few ng L-1). The biochemical analyses of testosterone (T) and 17b-estradiol (E2) also showed the ability of the selected compounds to significantly alter endogenous steroid concentrations.
Publisher version (URL)http://dx.doi.org/10.1007/s10646-009-0439-6
URIhttp://hdl.handle.net/10261/44068
DOI10.1007/s10646-009-0439-6
ISSN0963-9292
E-ISSN1573-3017
Appears in Collections:(IDAEA) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.