6 documents found, page 1 of 1
Transcriptomic, biochemical and individual markers in transplanted Daphnia magn...
Rivetti, Claudia; Campos, Bruno; Faria, Melissa; Català, Nuria De Castro; Malik, Amrita; Muñoz, Isabel; Tauler, Romà; Soares, Amadeu M. V. M.Daphnia magna individuals were transplanted across 12 sites from three Spanish river basins (Llobregat, Ebro, Jucar) showing different sources of pollution. Gene transcription, feeding and biochemical responses in the field were assessed and comparedwith those obtained in re-constitutedwater treatments spikedwith organic eluates obtained fromwater samples collected at the same locations and sampling periods. Up...
Zebrafish models for human acute organophosphorus poisoning
Faria, Melissa; Garcia-Reyero, Natàlia; Padrós, Francesc; Babin, Patrick J.; Sebastián, David; Cachot, Jérôme; Prats, Eva; Arick, Mark, IITerrorist use of organophosphorus-based nerve agents and toxic industrial chemicals against civilian populations constitutes a real threat, as demonstrated by the terrorist attacks in Japan in the 1990 s or, even more recently, in the Syrian civil war. Thus, development of more effective countermeasures against acute organophosphorus poisoning is urgently needed. Here, we have generated and validated zebrafish ...
The use of cholinesterase as potential biomarker: in vitro characterization in ...
Gomes, Isa D. L.; Lemos, Marco F. L.; Soares, Amadeu M. V. M.; Barata, Carlos; Faria, MelissaThe ecological relevance of polychaetes coupled with their easy culture and maintenance in the laboratory, has led them to become increasingly used in marine ecotoxicological studies, raising the need to validate frequently applied monitoring tools at various biological levels. The present study was aimed to characterize the cholinesterases (ChE) activity in the polychaete Capitella teleta, using three substrat...
Separating natural from anthropogenic causes of impairment in Zebra mussel (Dre...
Faria, Melissa; Ochoa, Victoria; Blázquez, Mercedes; Juan, Maria Fernandes San; Lazzara, Raimondo; Lacorte, Silvia; Soares, Amadeu M. V .M.The relationship between the reproductive stage, the total lipid content and eight broadly used biochemical stress responses were used to assess seasonal and pollutant effects across eleven different zebra mussel (Dreissena polymorpha) populations from the Ebro and Mijares river basin, Spain. Biochemical markers included superoxide dismutase (SOD), catalase (CAT), glutathione (GSH), glutathione S transferase (G...
Effects of Barcelona harbor sediments in biological responses of the polychaete...
Gomes, Isa D. L.; Lemos, Marco F. L.; Soares, Amadeu M. V. M.; Díez, Sergi; Barata, Carlos; Faria, MelissaMarine ecosystems are increasingly exposed to a multitude of anthropogenic contaminants. Harbor environments are permanently subjected to such contaminants and bottom sediments are considered as the final repository. Filter-feeding and burrowing organisms, such as some polychaete communities, are among the most exposed organisms. This study aimed to assess the toxicity of Barcelona harbor sediments to the polyc...
Oxidative stress effects of titanium dioxide nanoparticle aggregates in zebrafi...
Faria, Melissa; Navas, José M.; Soares, Amadeu M. V. M.; Barata, CarlosThere is limited data on the sub-lethal oxidative stress effects of titanium dioxide nanoparticle aggregates (NM-TiO2) and its modulation by simulated solar radiation (SSR) to aquatic organisms. This study aimed to examine sublethal oxidative stress effects of aqueous exposure to three different types of NM-TiO2 differing in their coating or crystal structure but of similar primary size (20nm) plus a micron-siz...