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Embryotoxic effects of in-ovo triclosan injection to the yellow-legged gull.
Possenti, Cristina Daniela; Poma, Giulia; Defossé, Saskia; Caprioli, Manuela; De Felice, Beatrice; Romano, Andrea; Saino, Nicola; Covaci, Adrian; Parolini, Marco.
Afiliación
  • Possenti CD; Department of Environmental Science and Policy, University of Milan, Via Celoria 26, 20133 Milan, Italy. Electronic address: cristina.possenti@unimi.it.
  • Poma G; Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.
  • Defossé S; Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.
  • Caprioli M; Department of Environmental Science and Policy, University of Milan, Via Celoria 26, 20133 Milan, Italy.
  • De Felice B; Department of Environmental Science and Policy, University of Milan, Via Celoria 26, 20133 Milan, Italy.
  • Romano A; Department of Environmental Science and Policy, University of Milan, Via Celoria 26, 20133 Milan, Italy; Department of Ecology and Evolution, University of Lausanne, Building Biophore, CH-1015, Lausanne, Switzerland.
  • Saino N; Department of Environmental Science and Policy, University of Milan, Via Celoria 26, 20133 Milan, Italy.
  • Covaci A; Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.
  • Parolini M; Department of Environmental Science and Policy, University of Milan, Via Celoria 26, 20133 Milan, Italy. Electronic address: marco.parolini@unimi.it.
Chemosphere ; 218: 827-835, 2019 Mar.
Article en En | MEDLINE | ID: mdl-30508801
Triclosan (TCS) is an antimicrobial agent used in diverse personal care products that is considered as an emerging contaminant of both aquatic and terrestrial ecosystems. Although TCS aquatic ecotoxicity is well known, information on the presence and effects on terrestrial organisms is still scarce. This study was aimed at exploring the embryotoxicity of TCS to the yellow-legged gull (Larus michahellis) induced by the in-ovo injection of 150 ng TCS/g egg weight. Effects of TCS on embryo morphological traits (i.e. body mass, tarsus length and head size). Moreover, oxidative and genetic effects were assessed in the embryo liver, by measuring the amount of reactive oxygen species (ROS), the activity of antioxidant (superoxide dismutase and catalase) and detoxifying (glutathione S-transferase - GST) enzymes, the levels of lipid peroxidation and DNA fragmentation. After the injection, the concentration of TCS measured in the yolk of unincubated eggs (159 ±â€¯35 ng/g wet weight, ww) was close to the expected concentration. Triclosan was found in residual yolk (2.9 ±â€¯1.1 ng/g ww), liver (2.3 ±â€¯1.1 ng/g ww) and brain (0.2 ±â€¯0.1 ng/g ww) of embryos soon before hatching. Triclosan did not significantly affect embryo morphological traits, while it increased ROS levels and promoted GST activity, inducing the onset of both oxidative and genetic damage. This study demonstrated, for the first time in a wild euriecious bird species with mixed habits, that TCS can be maternally transferred to developing embryos, representing a potential threat for offspring.
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Texto completo: 1 Base de datos: MEDLINE Asunto principal: Triclosán / Charadriiformes / Antioxidantes Límite: Animals Idioma: En Revista: Chemosphere Año: 2019 Tipo del documento: Article

Texto completo: 1 Base de datos: MEDLINE Asunto principal: Triclosán / Charadriiformes / Antioxidantes Límite: Animals Idioma: En Revista: Chemosphere Año: 2019 Tipo del documento: Article