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Effects of single and combined exposures of gold (nano versus ionic form) and gemfibrozil in a liver organ culture of Sparus aurata.

Abstract：

:In vitro methods have gained rising importance in ecotoxicology due to ethical concerns. The aim of this study was to assess the single and combined in vitro effects of gold, as nanoparticle (AuNPs) and ionic (Au+) form, and the pharmaceutical gemfibrozil (GEM). Sparus aurata liver organ culture was exposed to gold (4 to 7200 μg·L-1), GEM (1.5 to 15,000 μg·L-1) and combination 80 μg·L-1 gold +150 μg·L-1 GEM for 24 h. Endpoints related with antioxidant status, peroxidative/genetic damage were assessed. AuNPs caused more effects than Au+, increasing catalase and glutathione reductase activities and damaging DNA and cellular membranes. Effects were dependent on AuNPs size, coating and concentration. GEM damaged DNA at an environmentally relevant concentration, 1.5 μg·L-1. Overall, the effects of the combined exposures were higher than the predicted, based on single exposures. This study showed that liver culture can be a useful model to study contaminants effects.

journal_name

Mar Pollut Bull

journal_title

Marine pollution bulletin

authors

Barreto A,Carvalho A,Silva D,Pinto E,Almeida A,Paíga P,Correira-Sá L,Delerue-Matos C,Trindade T,Soares AMVM,Hylland K,Loureiro S,Oliveira M

doi

10.1016/j.marpolbul.2020.111665

subject

Has Abstract

pub_date

2020-11-01 00:00:00

pages

111665

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(20)30783-9

journal_volume

160

pub_type

杂志文章

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