243 results on '"Loizeau A"'
Search Results
2. The TELOMERE REPEAT BINDING proteins TRB4 and TRB5 function as transcriptional activators of PRC2-controlled genes to regulate plant development.
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Amiard, Simon, primary, Feit, Léa, additional, Vanrobays, Emmanuel, additional, Simon, Lauriane, additional, Le Goff, Samuel, additional, Loizeau, Loriane, additional, Wolff, Léa, additional, Butter, Falk, additional, Bourbousse, Clara, additional, Barneche, Fredy, additional, Tatout, Christophe, additional, and Probst, Aline.V., additional
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- 2024
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3. Prolonged drought periods over the last four decades increase flood intensity in southern Africa
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Franchi, Fulvio, primary, Mustafa, Syed, additional, Ariztegui, Daniel, additional, Chirindja, Farisse J., additional, Di Capua, Andrea, additional, Hussey, Stephen, additional, Loizeau, Jean-Luc, additional, Maselli, Vittorio, additional, Matanó, Alessia, additional, Olabode, Oluwaseun, additional, Pasqualotto, Florian, additional, Sengwei, Whatmore, additional, Tirivarombo, Sithabile, additional, Van Loon, Anne F., additional, and Comte, Jean-Christophe, additional
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- 2024
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4. Le nail art, ou quand la coquetterie n’est pas sans risque !
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Loizeau, Valérie, primary
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- 2024
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5. The Impact on an Early Exposure to 17α-Ethynylestradiol on Three-Spined Stickleback (Gasterosteus Aculeatus) Physiology in Current and Future Climatic Scenario
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Devergne, Jimmy, primary, Servili, Arianna, additional, Jodet, Sylvain, additional, Brandicourt, Titouan, additional, Lebigre, Christophe, additional, Collet, Sophie, additional, Mouchel, Olivier, additional, Fleury, Marie Lou, additional, Roussel, Sabine, additional, and Loizeau, Véronique, additional
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- 2024
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6. Bioaccumulation and molecular effects of carbamazepine and methylmercury co-exposure in males of Dreissena polymorpha
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Baratange, Clément, primary, Baali, Hugo, additional, Gaillet, Véronique, additional, Bonnard, Isabelle, additional, Delahaut, Laurence, additional, Gaillard, Jean-Charles, additional, Grandjean, Dominique, additional, Sayen, Stéphanie, additional, Gallorini, Andrea, additional, Le Bris, Nathalie, additional, Renault, David, additional, Breider, Florian, additional, Loizeau, Jean-Luc, additional, Armengaud, Jean, additional, and Cosio, Claudia, additional
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- 2023
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7. Le processus de transition : faire toujours mieux pour les adolescents
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Loizeau, Valérie, primary
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- 2023
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8. Behavioural characteristics and sex differences of a treatment-resistant depression model: chronic mild stress in the Wistar-Kyoto rat
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Loizeau, Vincent, primary, Durieux, Laura, additional, Mendoza, Jorge, additional, Wiborg, Ove, additional, Barbelivien, Alexandra, additional, and Lecourtier, Lucas, additional
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- 2023
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9. Comparison of ambient radiofrequency electromagnetic field (RF-EMF) levels in outdoor areas and public transport in Switzerland in 2014 and 2021
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Loizeau, Nicolas, primary, Zahner, Marco, additional, Schindler, Johannes, additional, Stephan, Christa, additional, Fröhlich, Jürg, additional, Gugler, Markus, additional, Ziegler, Toni, additional, and Röösli, Martin, additional
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- 2023
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10. Socioeconomic conditions and children's mental health and quality of life during the COVID-19 pandemic: An intersectional analysis
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Lorthe, Elsa, primary, Richard, Viviane, additional, Dumont, Roxane, additional, Loizeau, Andrea, additional, Perez-Saez, Javier, additional, Baysson, Hélène, additional, Zaballa, Maria-Eugenia, additional, Lamour, Julien, additional, Pullen, Nick, additional, Schrempft, Stephanie, additional, Barbe, Rémy P., additional, Posfay-Barbe, Klara M., additional, Guessous, Idris, additional, Stringhini, Silvia, additional, Amrein, Deborah, additional, Arm-Vernez, Isabelle, additional, Azman, Andrew S., additional, Bal, Antoine, additional, Balavoine, Michael, additional, Berthelot, Julie, additional, Bleich, Patrick, additional, Boehm, Livia, additional, Bouchet, Aminata R., additional, Bryand, Gaëlle, additional, Bucolli, Viola, additional, Collombet, Prune, additional, Cudet, Alain, additional, Davidovic, Vladimir, additional, de Mestral, Carlos, additional, D’Ippolito, Paola, additional, Dubos, Richard, additional, Eckerle, Isabella, additional, El Merjani, Nacira, additional, Favier, Marion, additional, Francioli, Natalie, additional, Graindorge, Clément, additional, Hagose, Munire, additional, Harnal, Séverine, additional, Hurst, Samia, additional, Kaiser, Laurent, additional, Kherad, Omar, additional, Lescuyer, Pierre, additional, L’Huillier, Arnaud G., additional, Lorthe, Elsa, additional, Martinez, Chantal, additional, Mermet, Stéphanie, additional, Nehme, Mayssam, additional, Noël, Natacha, additional, Pennacchio, Francesco, additional, Perrin, Anne, additional, Pittet, Didier, additional, Portier, Jane, additional, Poulain, Géraldine, additional, Pugin, Caroline, additional, Rinaldi, Frederic, additional, Rochat, Deborah, additional, Sahyoun, Cyril, additional, Sakvarelidze, Irine, additional, Samir, Khadija, additional, Santa Ramirez, Hugo Alejandro, additional, Rizzo, Jessica, additional, Semaani, Claire, additional, Testini, Stéphanie, additional, Tisserand, Yvain, additional, Rivas, Deborah Urrutia, additional, Verolet, Charlotte, additional, Villers, Jennifer, additional, Violot, Guillemette, additional, Vuilleumier, Nicolas, additional, Yerly, Sabine, additional, Zaballa, María-Eugenia, additional, and Zavlanou, Christina, additional
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- 2023
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11. Anaerobic mercury methylators inhabit sinking particles of oxic water columns
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Capo, Eric, primary, Cosio, Claudia, additional, Gascón Díez, Elena, additional, Loizeau, Jean-Luc, additional, Mendes, Elsa, additional, Adatte, Thierry, additional, Franzenburg, Sören, additional, and Bravo, Andrea G., additional
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- 2023
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12. Seroprevalence of anti-SARS-CoV-2 antibodies and cross-variant neutralization capacity after the Omicron BA.2 wave in Geneva, Switzerland: a population-based study
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Zaballa, María-Eugenia, primary, Perez-Saez, Javier, additional, de Mestral, Carlos, additional, Pullen, Nick, additional, Lamour, Julien, additional, Turelli, Priscilla, additional, Raclot, Charlène, additional, Baysson, Hélène, additional, Pennacchio, Francesco, additional, Villers, Jennifer, additional, Duc, Julien, additional, Richard, Viviane, additional, Dumont, Roxane, additional, Semaani, Claire, additional, Loizeau, Andrea Jutta, additional, Graindorge, Clément, additional, Lorthe, Elsa, additional, Balavoine, Jean-François, additional, Pittet, Didier, additional, Schibler, Manuel, additional, Vuilleumier, Nicolas, additional, Chappuis, François, additional, Kherad, Omar, additional, Azman, Andrew S., additional, Posfay-Barbe, Klara M., additional, Kaiser, Laurent, additional, Trono, Didier, additional, Stringhini, Silvia, additional, Guessous, Idris, additional, Arm-Vernez, Isabelle, additional, Azman, Andrew S, additional, Bachmann, Delphine, additional, Bal, Antoine, additional, Balavoine, Michael, additional, Barbe, Rémy P, additional, Beigbeder, Lison, additional, Berthelot, Julie, additional, Bleich, Patrick, additional, Boehm, Livia, additional, Bryand, Gaëlle, additional, Collombet, Prune, additional, Coudurier-Boeuf, Sophie, additional, Courvoisier, Delphine, additional, Cudet, Alain, additional, Davidovic, Vladimir, additional, D'ippolito, Paola, additional, Dubos, Richard, additional, Eckerle, Isabella, additional, El Merjani, Nacira, additional, Flahault, Antoine, additional, Francioli, Natalie, additional, Frangville, Marion, additional, Harnal, Séverine, additional, Hurst, Samia, additional, Lescuyer, Pierre, additional, L'Huillier, Arnaud G, additional, L'Huissier, François, additional, Martinez, Chantal, additional, Ménard, Lucie, additional, Metral-Boffod, Ludovic, additional, Moulin, Alexandre, additional, Nehme, Mayssam, additional, Noël, Natacha, additional, Posfay-Barbe, Klara M, additional, Poulain, Géraldine, additional, Pugin, Caroline, additional, Rinaldi, Frederic, additional, Rochat, Déborah, additional, Sakvarelidze, Irine, additional, Samir, Khadija, additional, Ramirez, Hugo Santa, additional, Satin, Etienne, additional, Schaller, Philippe, additional, Schrempft, Stephanie, additional, Testini, Stéphanie, additional, Urrutia-Rivas, Déborah, additional, Verolet, Charlotte, additional, Vetter, Pauline, additional, Violot, Guillemette, additional, Wisniak, Ania, additional, Yerly, Sabine, additional, and Zaballa, María-Eugenia, additional
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- 2023
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13. Tratamiento de las masas anexiales durante el embarazo
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M. Canis, E. Boulay, A.S. Gremeau, P. Chauvet, S. Campagne-Loizeau, S. Curinier, and N. Bourdel
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- 2022
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14. Bioaccumulation and Molecular Effects of Carbamazepine and Methylmercury Co-Exposure in Males of Dreissena Polymorpha
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Baratange, Clément, Baali, Hugo, Gaillet, Véronique, Bonnard, Isabelle, Delahaut, Laurence, Gaillard, Jean-Charles, Grandjean, Dominique, Sayen, Stéphanie, Gallorini, Andrea, Le Bris, Nathalie, Renault, David, Breider, Florian, Loizeau, Jean-Luc, Armengaud, Jean, and Cosio, Claudia
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Multi-omics ,Freshwater ,Toxicity pathways ,Bivalve - Abstract
Dreissena polymorpha is a bivalve promising for biomonitoring in freshwater ecosystems thanks to its abundance and high filtration activity allowing rapid uptake of toxicants and identification of their negative effects. Nonetheless, we still lack knowledge on its molecular responses to stress under realistic scenario, e.g. multi-contamination. Carbamazepine (CBZ) and Hg are ubiquitous pollutants sharing molecular toxicity pathways, e.g. oxidative stress. A previous study in zebra mussels showed their co-exposure to cause more disturbing alterations than single exposures, but molecular toxicity pathways remained unidentified. D. polymorpha was exposed 24 h (T24) and 72 h (T72) to CBZ (6.1 ± 0.1 μg L−1), MeHg (430 ± 10 ng L−1) and the co-exposure (6.1 ± 0.1 μg L−1CBZ and 500 ± 10 ng L−1 MeHg) at concentrations representative of polluted areas (~10× EQS). RedOx system at the gene and enzyme level, the proteome and the metabolome were compared. The co-exposure resulted in 108 differential abundant proteins (DAPs), as well as 9 and 10 modulated metabolites at T24 and T72, respectively. The co-exposure specifically modulated DAPs and metabolites involved in neurotransmission, e.g. dopaminergic synapse and GABA. CBZ specifically modulated 46 DAPs involved in calcium signaling pathways and 7 amino acids at T24. MeHg specifically modulated 55 DAPs proteins involved in the cytoskeleton remodeling and hypoxia-induced factor 1 pathway, without altering the metabolome. Single and co-exposures commonly modulated proteins and metabolites involved in energy and amino acid metabolisms, response to stress and development. Concomitantly, lipid peroxidation and antioxidant activities were unchanged, supporting that D. polymorpha tolerated experimental conditions. The co-exposure was confirmed to cause more alterations than single exposures. This was attributed to the combined toxicity of CBZ and MeHg. Altogether, this study underlined the necessity to better characterize molecular toxicity pathways of multi-contamination that are not predictable on responses to single exposures, to better anticipate adverse effects in biota and improve risk assessment.
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- 2023
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15. La création d’un département de pratique avancée au sein d’un GHT
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Christina Goncalves Ribeiro, Carole Daniel, Chloé Denis, Martin Denny, Pascal Dauvel, Sandrine Williaume, and Valérie Loizeau
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General Medicine ,General Nursing - Published
- 2022
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16. Faisons prendre l’air à nos enfants !
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Loizeau, Valérie, primary
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- 2022
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17. Lake snow as a mercury methylation micro-environment in the oxic water column of a deep peri-alpine lake
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Gallorini, Andrea, primary and Loizeau, Jean-Luc, additional
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- 2022
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18. Maladie chronique et construction de l’image corporelle, le souci esthétique de l’adolescent
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Daniela Annequin and Valérie Loizeau
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Psyche ,Psychotherapist ,business.industry ,Health care ,General Medicine ,business ,Psychology ,General Nursing - Abstract
Chronic illnesses, such as diabetes, have an impact on the body, but also on the psyche, disturbing the body image of the child or adolescent. This must be integrated into their"growing up process". To this end, health care professionals specialising in these populations provide the most appropriate support during these periods of doubt and uncertainty.
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- 2021
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19. Prévenir et agir face à la surexposition des jeunes enfants aux écrans
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Caroline Dupont, Sandra Mathey, Valérie Loizeau, and Jessica Fontaines
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Pharmacology (medical) ,Psychology - Published
- 2021
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20. La création d’un département de pratique avancée au sein d’un GHT
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Goncalves Ribeiro, Christina, primary, Daniel, Carole, additional, Denis, Chloé, additional, Denny, Martin, additional, Dauvel, Pascal, additional, Williaume, Sandrine, additional, and Loizeau, Valérie, additional
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- 2022
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21. Metabolic, cellular and defense responses to single and co-exposure to carbamazepine and methylmercury in Dreissena polymorpha
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Baratange, Clément, primary, Paris-Palacios, Séverine, additional, Bonnard, Isabelle, additional, Delahaut, Laurence, additional, Grandjean, Dominique, additional, Wortham, Laurence, additional, Sayen, Stéphanie, additional, Gallorini, Andrea, additional, Michel, Jean, additional, Renault, David, additional, Breider, Florian, additional, Loizeau, Jean-Luc, additional, and Cosio, Claudia, additional
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- 2022
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22. Lake Snow as a Mercury Methylation Micro-Environment in the Oxic Water Column of a Deep Peri-Alpine Lake
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Andrea Gallorini and Jean-Luc Loizeau
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ddc:333.7-333.9 ,Environmental Engineering ,Health, Toxicology and Mutagenesis ,Public Health, Environmental and Occupational Health ,Water ,Lake snow ,Methylmercury ,Settling particles ,General Medicine ,General Chemistry ,Mercury ,Methylmercury Compounds ,Pollution ,Methylation ,Lakes ,ddc:550 ,Environmental Chemistry ,Hg methylation in freshwater ,Water Pollutants, Chemical ,Suspended particles ,Environmental Monitoring - Abstract
Hg methylation in the oxic water column of marine environments has been linked to the presence of suspended and settling particles known as marine snow, which acts as a micro-niche for MeHg production. While marine snow has been thoroughly studied, its freshwater counterpart, lake snow, received less attention, even though few works have highlighted its ability to be a micro environment for Hg methylation in freshwater systems. Here we present new data of MeHg and THg concentrations in the lake snow of a deep peri-alpine lake (Lake Geneva, Switzerland-France). Particles were sampled from the lake and from its main tributaries using continuous flow filtration and continuous flow centrifugation, respectively. MeHg concentrations ranged from 0.48 ± 0.09 ng/g to 9.61 ± 0.67 ng/g in the lake particles, and from 0.30 ± 0.08 ng/g to 2.41 ± 0.14 ng/g in tributary particles. Our results suggest that lake snow is a likely micro-niche for Hg methylation, like marine snow, and that this methylation takes place inside the particles with a subsequent diffusion to the water column. Moreover, we propose a conceptual model to explain the MeHg behavior related to the lake snow along Lake Geneva water column and a mass balance model to estimate the time required to reach the steady state of MeHg in the water column. Our calculation indicates that the steady-state is reached after 37 days. This result is compatible with particles residence times from the literature on Lake Geneva. These particles forming the lake snow are probably a major entry point into the lake's food chain.
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- 2022
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23. Anaerobic mercury methylators inhabit sinking particles of oxic water columns
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Eric Capo, Claudia Cosio, Elena Gascón Díez, Jean-Luc Loizeau, Elsa Mendes, Thierry Adatte, Sören Franzenburg, Andrea G. Bravo, and Agencia Estatal de Investigación (España)
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Anaerobic process ,Environmental Engineering ,Sinking particles ,Ecological Modeling ,Mercury methylation ,hgcAB genes ,Lake Geneva ,Pollution ,Waste Management and Disposal ,Water Science and Technology ,Civil and Structural Engineering - Abstract
10 pages, 6 figures, 1 table, supplementary materials https://doi.org/10.1016/j.watres.2022.119368.-- Data availability: The raw data are accessible at NCBI (SRA accession: PRJNA831615, SUB11359380), Increased concentration of mercury, particularly methylmercury, in the environment is a worldwide concern because of its toxicity in severely exposed humans. Although the formation of methylmercury in oxic water columns has been previously suggested, there is no evidence of the presence of microorganisms able to perform this process, using the hgcAB gene pair (hgc+ microorganisms), in such environments. Here we show the prevalence of hgc+ microorganisms in sinking particles of the oxic water column of Lake Geneva (Switzerland and France) and its anoxic bottom sediments. Compared to anoxic sediments, sinking particles found in oxic waters exhibited relatively high proportion of hgc+genes taxonomically assigned to Firmicutes. In contrast hgc+members from Nitrospirae, Chloroflexota and PVC superphylum were prevalent in anoxic sediment while hgc+ Desulfobacterota were found in both environments. Altogether, the description of the diversity of putative mercury methylators in the oxic water column expand our understanding on MeHg formation in aquatic environments and at a global scale, This work was partly funded by the Severo Ochoa Excellence Program postdoctoral fellowship awarded in 2021 to Eric Capo (CEX2019-000928-S) and the Ramón y Cajal program (RYC2019-028400-I, AEI Spain) awarded to Andrea Garcia Bravo
- Published
- 2023
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24. Seroprevalence of anti-SARS-CoV-2 antibodies and cross-variant neutralization capacity after the Omicron BA.2 wave in Geneva, Switzerland: a population-based study
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María-Eugenia Zaballa, Javier Perez-Saez, Carlos de Mestral, Nick Pullen, Julien Lamour, Priscilla Turelli, Charlène Raclot, Hélène Baysson, Francesco Pennacchio, Jennifer Villers, Julien Duc, Viviane Richard, Roxane Dumont, Claire Semaani, Andrea Jutta Loizeau, Clément Graindorge, Elsa Lorthe, Jean-François Balavoine, Didier Pittet, Manuel Schibler, Nicolas Vuilleumier, François Chappuis, Omar Kherad, Andrew S. Azman, Klara M. Posfay-Barbe, Laurent Kaiser, Didier Trono, Silvia Stringhini, Idris Guessous, Isabelle Arm-Vernez, Andrew S Azman, Delphine Bachmann, Antoine Bal, Michael Balavoine, Rémy P Barbe, Lison Beigbeder, Julie Berthelot, Patrick Bleich, Livia Boehm, Gaëlle Bryand, Prune Collombet, Sophie Coudurier-Boeuf, Delphine Courvoisier, Alain Cudet, Vladimir Davidovic, Paola D'ippolito, Richard Dubos, Isabella Eckerle, Nacira El Merjani, Antoine Flahault, Natalie Francioli, Marion Frangville, Séverine Harnal, Samia Hurst, Pierre Lescuyer, Arnaud G L'Huillier, François L'Huissier, Chantal Martinez, Lucie Ménard, Ludovic Metral-Boffod, Alexandre Moulin, Mayssam Nehme, Natacha Noël, Klara M Posfay-Barbe, Géraldine Poulain, Caroline Pugin, Frederic Rinaldi, Déborah Rochat, Irine Sakvarelidze, Khadija Samir, Hugo Santa Ramirez, Etienne Satin, Philippe Schaller, Stephanie Schrempft, Stéphanie Testini, Déborah Urrutia-Rivas, Charlotte Verolet, Pauline Vetter, Guillemette Violot, Ania Wisniak, and Sabine Yerly
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Oncology ,Health Policy ,Internal Medicine - Abstract
More than two years into the COVID-19 pandemic, most of the population has developed anti-SARS-CoV-2 antibodies from infection and/or vaccination. However, public health decision-making is hindered by the lack of up-to-date and precise characterization of the immune landscape in the population. Here, we estimated anti-SARS-CoV-2 antibodies seroprevalence and cross-variant neutralization capacity after Omicron became dominant in Geneva, Switzerland.We conducted a population-based serosurvey between April 29 and June 9, 2022, recruiting children and adults of all ages from age-stratified random samples of the general population of Geneva, Switzerland. We tested for anti-SARS-CoV-2 antibodies using commercial immunoassays targeting either the spike (S) or nucleocapsid (N) protein, and for antibody neutralization capacity against different SARS-CoV-2 variants using a cell-free Spike trimer-ACE2 binding-based surrogate neutralization assay. We estimated seroprevalence and neutralization capacity using a Bayesian modeling framework accounting for the demographics, vaccination, and infection statuses of the Geneva population.Among the 2521 individuals included in the analysis, the estimated total antibodies seroprevalence was 93.8% (95% CrI 93.1-94.5), including 72.4% (70.0-74.7) for infection-induced antibodies. Estimates of neutralizing antibodies in a representative subsample (N = 1160) ranged from 79.5% (77.1-81.8) against the Alpha variant to 46.7% (43.0-50.4) against the Omicron BA.4/BA.5 subvariants. Despite having high seroprevalence of infection-induced antibodies (76.7% [69.7-83.0] for ages 0-5 years, 90.5% [86.5-94.1] for ages 6-11 years), children aged12 years had substantially lower neutralizing activity than older participants, particularly against Omicron subvariants. Overall, vaccination was associated with higher neutralizing activity against pre-Omicron variants. Vaccine booster alongside recent infection was associated with higher neutralizing activity against Omicron subvariants.While most of the Geneva population has developed anti-SARS-CoV-2 antibodies through vaccination and/or infection, less than half has neutralizing activity against the currently circulating Omicron BA.5 subvariant. Hybrid immunity obtained through booster vaccination and infection confers the greatest neutralization capacity, including against Omicron.General Directorate of Health in Geneva canton, Private Foundation of the Geneva University Hospitals, European Commission ("CoVICIS" grant), and a private foundation advised by CARIGEST SA.
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- 2023
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25. Provider adherence to training components from the Trial to Reduce Antimicrobial use In Nursing home residents with Alzheimer's disease and other Dementias (TRAIN-AD) intervention
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Hendricksen, Meghan, primary, Loizeau, Andrea J., additional, Habtemariam, Daniel A., additional, Anderson, Ruth A., additional, Hanson, Laura C., additional, D'Agata, Erika M.C., additional, and Mitchell, Susan L., additional
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- 2022
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26. Tratamiento de las masas anexiales durante el embarazo
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Canis, M., primary, Boulay, E., additional, Gremeau, A.S., additional, Chauvet, P., additional, Campagne-Loizeau, S., additional, Curinier, S., additional, and Bourdel, N., additional
- Published
- 2022
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27. Attention à la surexposition aux écrans !
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Loizeau, Valérie, primary
- Published
- 2022
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28. The Planetary Terrestrial Analogues Library (PTAL) – An exclusive lithological selection of possible martian earth analogues
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Dypvik, Henning, primary, Hellevang, Helge, additional, Krzesińska, Agata, additional, Sætre, Christian, additional, Viennet, Jean-Christophe, additional, Bultel, Benjamin, additional, Ray, Dwijesh, additional, Poulet, Francois, additional, Loizeau, Damien, additional, Veneranda, Marco, additional, Rull, Fernando, additional, Cousin, Agnes, additional, and Werner, Stephanie C., additional
- Published
- 2021
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29. Maladie chronique et construction de l’image corporelle, le souci esthétique de l’adolescent
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Loizeau, Valérie, primary and Annequin, Daniela, additional
- Published
- 2021
- Full Text
- View/download PDF
30. A review of the effects of contamination and temperature in Solea solea larvae. Modeling perspectives in the context of climate change
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Sardi, Adriana E., primary, Bégout, Marie-Laure, additional, Cousin, Xavier, additional, Labadie, Pierre, additional, Loizeau, Véronique, additional, and Budzinski, Hélène, additional
- Published
- 2021
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31. Performance of a two-dimensional position sensitive MRPC prototype with adjustable transmission line impedance
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N. Herrmann, I. M. Deppner, L. Rǎdulescu, Mihai Petrovici, P.-A. Loizeau, V. Simion, Daniela Bartos, M. Kiš, C. Simon, Marco De Petris, and J. Frühauf
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Physics ,Nuclear and High Energy Physics ,Physics::Instrumentation and Detectors ,010308 nuclear & particles physics ,Acoustics ,Detector ,High voltage ,Input impedance ,01 natural sciences ,Characteristic impedance ,Line (electrical engineering) ,Transmission line ,0103 physical sciences ,010306 general physics ,Instrumentation ,Electrical impedance ,Energy (signal processing) - Abstract
The free streaming readout concept of the CBM experiment imposes to the Multi-Strip Multi-Gap RPCs (MSMGRPCs) developed for the CBM-TOF wall a very good matching of the characteristic impedance of the signal transmission line (corresponding to a single strip) to the input impedance of the front-end electronics in order to reduce fake signals produced by reflections. The design of the MSMGRPC prototype described here exploits in an innovative way the advantage of a strip structure for the readout and the high voltage electrodes , the impedance of the signal transmission line being adjusted independent of the detector granularity. The new design allows to built MSMGRPCs with the impedance corresponding to a single strip matched to the input impedance of the front end electronics. The prototype was tested in-beam at CERN-SPS with reaction products of a 30 ⋅ A GeV Pb beam colliding onto a Pb target, in conditions rather similar in terms of energy and multiplicity with those expected at SIS100/FAIR. The obtained performance of 62 ± 3 ps system time resolution and 97% efficiency shows that the new developed prototype meets the challenging requirements for the inner zone of the CBM-TOF wall.
- Published
- 2019
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32. Faisons prendre l’air à nos enfants !
- Author
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Valérie Loizeau
- Subjects
Pediatrics - Published
- 2022
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33. Sediment archives reveal irreversible shifts in plankton communities after World War II and agricultural pollution
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Nicolas Briant, Véronique Loizeau, Kenneth Neil Mertens, Clément Lambert, Laure Quintric, Cyril Noël, Patrick Durand, Marie Latimier, Raffaele Siano, Sabine Schmidt, Pierre Cuzin, Malwenn Lassudrie, Aurélie Penaud, Axel Ehrhold, Julien Quere, Unité Dyneco, Laboratoire Pelagos, Dynamiques de l'Environnement Côtier (DYNECO), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Environnement Ressources Bretagne Occidentale (LER-BO), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Biogéochimie des Contaminants Métalliques (LBCM), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre atlantique, Nantes, Biogéochimie des contaminants organiques (LBCO), UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Unité de recherche Géosciences Marines (Ifremer) (GM), IFREMER-Concarneau, Laboratoire Géosciences Océan (LGO), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ecologie Pélagique (PELAGOS), Dynamiques des Écosystèmes Côtiers (DYNECO), Laboratoire Environnement Ressource de Bretagne Occidentale (LERBO), LITTORAL (LITTORAL), Biogéochimie et Ecotoxicologie (BE), Laboratoire Biogéochimie des Contaminants Organiques (LBCO), Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Environnements et Paléoenvironnements OCéaniques (EPOC), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE), Géosciences Marines (GM), Laboratoire Environnement Ressource Bretagne Nord (LERBN), and Université de Bretagne Sud (UBS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)
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0301 basic medicine ,Geologic Sediments ,World War II ,Agricultural pollution ,Biodiversity ,Biology ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Marine ecosystem ,Ecosystem ,14. Life underwater ,ComputingMilieux_MISCELLANEOUS ,Retrospective Studies ,Ecology ,15. Life on land ,Plankton ,030104 developmental biology ,Ancient DNA ,13. Climate action ,[SDE]Environmental Sciences ,Dinoflagellida ,Paleoecology ,General Agricultural and Biological Sciences ,Bay ,030217 neurology & neurosurgery - Abstract
To evaluate the stability and resilience1 of coastal ecosystem communities to perturbations that occurred during the Anthropocene,2 pre-industrial biodiversity baselines inferred from paleoarchives are needed.3,4 The study of ancient DNA (aDNA) from sediments (sedaDNA)5 has provided valuable information about past dynamics of microbial species6, 7, 8 and communities9, 10, 11, 12, 13, 14, 15, 16, 17, 18 in relation to ecosystem variations. Shifts in planktonic protist communities might significantly affect marine ecosystems through cascading effects,19, 20, 21 and therefore the analysis of this compartment is essential for the assessment of ecosystem variations. Here, sediment cores collected from different sites of the Bay of Brest (northeast Atlantic, France) allowed ca. 1,400 years of retrospective analyses of the effects of human pollution on marine protists. Comparison of sedaDNA extractions and metabarcoding analyses with different barcode regions (V4 and V7 18S rDNA) revealed that protist assemblages in ancient sediments are mainly composed of species known to produce resting stages. Heavy-metal pollution traces in sediments were ascribed to the World War II period and coincided with community shifts within dinoflagellates and stramenopiles. After the war and especially from the 1980s to 1990s, protist genera shifts followed chronic contaminations of agricultural origin. Community composition reconstruction over time showed that there was no recovery to a Middle Ages baseline composition. This demonstrates the irreversibility of the observed shifts after the cumulative effect of war and agricultural pollutions. Developing a paleoecological approach, this study highlights how human contaminations irreversibly affect marine microbial compartments, which contributes to the debate on coastal ecosystem preservation and restoration.
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- 2021
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34. Optimal Allocation of Proton Therapy Slots in Combined Proton-Photon Radiation Therapy
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Loizeau, Nicolas, primary, Fabiano, Silvia, additional, Papp, Dávid, additional, Stützer, Kristin, additional, Jakobi, Annika, additional, Bandurska-Luque, Anna, additional, Troost, Esther G.C., additional, Richter, Christian, additional, and Unkelbach, Jan, additional
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- 2021
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35. A review of the effects of contamination and temperature in Solea solea larvae. Modeling perspectives in the context of climate change
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Sardi, Adriana E., Bégout, Marie-laure, Cousin, Xavier, Labadie, Pierre, Loizeau, Veronique, Budzinski, Hélène, Sardi, Adriana E., Bégout, Marie-laure, Cousin, Xavier, Labadie, Pierre, Loizeau, Veronique, and Budzinski, Hélène
- Abstract
The flatfish species Solea solea has been the subject of research for supporting their management in fisheries, restocking natural populations, domestication in aquaculture, and ecotoxicology research. Soles undergo a metamorphosis with drastic morphological and physiological changes and settlement, processes that make them potentially more vulnerable to pollutants than other fish. Up to date, efforts made to develop its aquaculture production in Europe have been limited. In the context of climate change (CC), this review aims i) to gather research conducted in S. solea larvae that summarizes the effects of increased temperature and contaminant exposures during larval development; and ii) to provide a summarized and synergistic view about its larval development. The review consists of 4 sections. Section 1 justifies the selection of this species from ecological and economic perspectives. Section 2 focuses on larvae ontogenesis, metamorphosis, rearing challenges, and further aquaculture production. Section 3 reviews studies dealing with the effects of temperature change (due to CC) and pollutants on larval development. Finally, section 4 provides a “how to go forward on ecotoxicological research” guideline, in which we highlight the methods that we found promising as tools to study the combined effects of CC and pollution. The section includes a multidisciplinary framework that proposes how existing data coming from different scientific domains can be synthesized to be useful for risk assessors and ecotoxicologists. To benefit from such a framework, it is necessary to reach consensus and nurture team effort from players that operate in different research disciplines.
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- 2021
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36. Sediment archives reveal irreversible shifts in plankton communities after World War II and agricultural pollution
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Siano, Raffaele, Lassudrie Duchesne, Malwenn, Cuzin, Pierre, Briant, Nicolas, Loizeau, Veronique, Schmidt, Sabine, Ehrhold, Axel, Mertens, Kenneth, Lambert, Clément, Quintric, Laure, Noël, Cyril, Latimier, Marie, Quéré, Julien, Durand, Patrick, Penaud, Aurélie, Siano, Raffaele, Lassudrie Duchesne, Malwenn, Cuzin, Pierre, Briant, Nicolas, Loizeau, Veronique, Schmidt, Sabine, Ehrhold, Axel, Mertens, Kenneth, Lambert, Clément, Quintric, Laure, Noël, Cyril, Latimier, Marie, Quéré, Julien, Durand, Patrick, and Penaud, Aurélie
- Abstract
To evaluate the stability and resilience1 of coastal ecosystem communities to perturbations that occurred during the Anthropocene,2 pre-industrial biodiversity baselines inferred from paleoarchives are needed.3,4 The study of ancient DNA (aDNA) from sediments (sedaDNA)5 has provided valuable information about past dynamics of microbial species6, 7, 8 and communities9, 10, 11, 12, 13, 14, 15, 16, 17, 18 in relation to ecosystem variations. Shifts in planktonic protist communities might significantly affect marine ecosystems through cascading effects,19, 20, 21 and therefore the analysis of this compartment is essential for the assessment of ecosystem variations. Here, sediment cores collected from different sites of the Bay of Brest (northeast Atlantic, France) allowed ca. 1,400 years of retrospective analyses of the effects of human pollution on marine protists. Comparison of sedaDNA extractions and metabarcoding analyses with different barcode regions (V4 and V7 18S rDNA) revealed that protist assemblages in ancient sediments are mainly composed of species known to produce resting stages. Heavy-metal pollution traces in sediments were ascribed to the World War II period and coincided with community shifts within dinoflagellates and stramenopiles. After the war and especially from the 1980s to 1990s, protist genera shifts followed chronic contaminations of agricultural origin. Community composition reconstruction over time showed that there was no recovery to a Middle Ages baseline composition. This demonstrates the irreversibility of the observed shifts after the cumulative effect of war and agricultural pollutions. Developing a paleoecological approach, this study highlights how human contaminations irreversibly affect marine microbial compartments, which contributes to the debate on coastal ecosystem preservation and restoration.
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- 2021
- Full Text
- View/download PDF
37. Provider adherence to training components from the Trial to Reduce Antimicrobial use In Nursing home residents with Alzheimer's disease and other Dementias (TRAIN-AD) intervention
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Meghan Hendricksen, Andrea J. Loizeau, Daniel A. Habtemariam, Ruth A. Anderson, Laura C. Hanson, Erika M.C. D'Agata, and Susan L. Mitchell
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Pharmacology ,General Medicine - Published
- 2022
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38. Metabolic, cellular and defense responses to single and co-exposure to carbamazepine and methylmercury in Dreissena polymorpha
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Clément Baratange, Séverine Paris-Palacios, Isabelle Bonnard, Laurence Delahaut, Dominique Grandjean, Laurence Wortham, Stéphanie Sayen, Andrea Gallorini, Jean Michel, David Renault, Florian Breider, Jean-Luc Loizeau, Claudia Cosio, Stress Environnementaux et BIOsurveillance des milieux aquatiques (SEBIO), Institut National de l'Environnement Industriel et des Risques (INERIS)-Université de Reims Champagne-Ardenne (URCA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Normandie Université (NU)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS), School of Architecture, Civil and Environmental Engineering (ENAC), Ecole Polytechnique Fédérale de Lausanne (EPFL), Pathologies Pulmonaires et Plasticité Cellulaire - UMR-S 1250 (P3CELL), Université de Reims Champagne-Ardenne (URCA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Chimie Moléculaire de Reims - UMR 7312 (ICMR), Université de Reims Champagne-Ardenne (URCA)-Institut de Chimie du CNRS (INC)-SFR CAP Santé (Champagne-Ardenne Picardie Santé), Université de Reims Champagne-Ardenne (URCA)-Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS)-SFR Condorcet, Université de Genève = University of Geneva (UNIGE), Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS), Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-SFR Condorcet, and Cosio, Claudia
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[SDE] Environmental Sciences ,ddc:333.7-333.9 ,Gills ,Toxicity pathways ,Health, Toxicology and Mutagenesis ,Bivalve ,General Medicine ,Methylmercury Compounds ,Toxicology ,Bioaccumulation ,Pollution ,Cellular compensation ,Dreissena ,Carbamazepine ,Oxidative stress ,[SDE]Environmental Sciences ,ddc:550 ,Animals ,Water Pollutants, Chemical - Abstract
International audience; Carbamazepine (CBZ) and Hg are widespread and persistent micropollutants in aquatic environments. Both pollutants are known to trigger similar toxicity mechanisms, e.g. reactive oxygen species (ROS) production. Here, their effects were assessed in the zebra mussel Dreissena polymorpha, frequently used as a freshwater model in ecotoxicology and biomonitoring. Single and co-exposures to CBZ (3.9 µg•L-1) and MeHg (280 ng•L-1) were performed for 1 and 7 days. Metabolomics analyses evidenced that the co-exposure was the most disturbing after 7 days, reducing the amount of 25 metabolites involved in protein synthesis, energy metabolism, antioxidant response and osmoregulation, and significantly altering cells and organelles' structure supporting a reduction of functions of gills and digestive glands. CBZ alone after 7 days decreased the amount of α-aminobutyric acid and had a moderate effect on the structure of mitochondria in digestive glands. MeHg alone had no effect on mussels' metabolome, but caused a significant alteration of cells and organelles' structure in gills and digestive glands. Single exposures and the co-exposure increased antioxidant responses vs control in gills and digestive glands, without resulting in lipid peroxidation, suggesting an increased ROS production caused by both pollutants. Data globally supported that a higher number of hyperactive cells compensated cellular alterations in the digestive gland of mussels exposed to CBZ or MeHg alone, while CBZ+MeHg co-exposure overwhelmed this compensation after 7 days. Those effects were unpredictable based on cellular responses to CBZ and MeHg alone, highlighting the need to consider molecular toxicity pathways for a better anticipation of effects of pollutants in biota in complex environmental conditions.
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- 2022
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39. Sediment archives reveal irreversible shifts in plankton communities after World War II and agricultural pollution
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Siano, Raffaele, primary, Lassudrie, Malwenn, additional, Cuzin, Pierre, additional, Briant, Nicolas, additional, Loizeau, Véronique, additional, Schmidt, Sabine, additional, Ehrhold, Axel, additional, Mertens, Kenneth Neil, additional, Lambert, Clément, additional, Quintric, Laure, additional, Noël, Cyril, additional, Latimier, Marie, additional, Quéré, Julien, additional, Durand, Patrick, additional, and Penaud, Aurélie, additional
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- 2021
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40. Seroprevalence of anti-SARS-CoV-2 antibodies after the second pandemic peak
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Stringhini, Silvia, primary, Zaballa, María-Eugenia, additional, Perez-Saez, Javier, additional, Pullen, Nick, additional, de Mestral, Carlos, additional, Picazio, Attilio, additional, Pennacchio, Francesco, additional, Wisniak, Ania, additional, Richard, Aude, additional, Baysson, Helene, additional, Loizeau, Andrea, additional, Balavoine, Jean-François, additional, Trono, Didier, additional, Pittet, Didier, additional, Posfay-Barbe, Klara, additional, Flahault, Antoine, additional, Chappuis, François, additional, Kherad, Omar, additional, Vuilleumier, Nicolas, additional, Kaiser, Laurent, additional, Azman, Andrew S, additional, and Guessous, Idris, additional
- Published
- 2021
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41. Attention à la surexposition aux écrans !
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Valérie Loizeau
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Pediatrics - Published
- 2022
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42. Reduced sediment supply in a fast eroding landscape? A multi-proxy sediment budget of the upper Rhône basin, Central Alps
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Tiago A. Silva, Jean-Luc Loizeau, Laura Stutenbecker, Peter Molnar, Naki Akçar, Marcus Christl, Branimir Šegvić, Maarten Bakker, Fritz Schlunegger, Romain Delunel, Anna Costa, Stuart N. Lane, and Stéphanie Girardclos
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010504 meteorology & atmospheric sciences ,Stratigraphy ,Drainage basin ,Fluvial ,Structural basin ,010502 geochemistry & geophysics ,01 natural sciences ,Rhône catchment ,550 Earth sciences & geology ,Tributary ,ddc:550 ,Cosmogenic nuclides ,Fingerprinting ,Cosmogenic nuclide ,Sedimentary budget ,0105 earth and related environmental sciences ,ddc:333.7-333.9 ,Hydrology ,geography ,geography.geographical_feature_category ,Sediment ,Geochemistry ,Denudation rates ,Sediment generation ,Human impact ,Geology ,Sedimentary rock - Abstract
Alpine water and sediment supply influence the sediment budget of many important European fluvial systems such as the Rhine, Rhône and Po rivers. In the light of human induced climate change and landscape modification, it becomes increasingly important to understand the mechanisms of sediment production and supply in Alpine sediment systems. This study aims to investigate the modern sediment budget of the upper Rhône basin, one of the largest Alpine intramontane watersheds, located in the Central Alps of southwestern Switzerland. Major areas of sediment generation are fingerprinted by framework petrography, heavy mineral concentrations and bulk geochemistry. The relative contributions of the three major sources to the sediment of the trunk Rhône river are identified by compositional mixing modelling. Concentrations of the terrestrial cosmogenic nuclide 10Be measured in quartz separated from fluvial sediments provide spatially averaged denudation rates for selected tributary basins. Results from sediment fingerprinting and mixing modelling suggest that tributaries located in the North and the East of the catchment are generating most of the sediment transported by the Rhône river to its primary sedimentary sink in Lake Geneva. Despite having some of the highest denudation rates within the basin, tributaries located in the southern area of the Rhône basin are relatively underrepresented in the sediment budget of the Rhône river. These tributaries are severely affected by human activities, for example through sediment mining as well as water and sediment abstraction in large hydropower reservoirs. Together, these processes reduce the basin-wide sediment discharge by about 50%, thereby explaining most of the observed compositional pattern. In addition, there is evidence suggesting that large amounts of glaciogenic sediments are currently supplied by retreating glaciers. Glaciogenic material with its low 10Be concentrations can lead to a significant overestimation of denudation rates and thus limit the applicability of cosmogenic nuclide analysis in such glaciated settings.
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- 2018
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43. Dietary bioaccumulation of persistent organic pollutants in the common sole Solea solea in the context of global change. Part 1: Revisiting parameterisation and calibration of a DEB model to consider inter-individual variability in experimental and natural conditions.
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Mounier, Florence, Pecquerie, Laure, Lobry, Jérémy, Sardi, Adriana E., Labadie, Pierre, Budzinski, Hélène, Loizeau, Veronique, Mounier, Florence, Pecquerie, Laure, Lobry, Jérémy, Sardi, Adriana E., Labadie, Pierre, Budzinski, Hélène, and Loizeau, Veronique
- Abstract
Studying adverse effects of chemical pressure on aquatic ecosystems needs a comprehensive knowledge of bioaccumulation mechanisms of pollutants in biota to predict internal concentrations, especially for Persistent Organic Pollutants (POPs). However, the large variability of responses in measured POP concentrations requires explicit consideration of both individual variability and environmental influences. Dynamic Energy Budget (DEB) theory provides a rigorous and generic conceptual framework for tackling these questions in a relevant mechanistic way. In the present study, parameterisation and calibration of previous DEB models for Solea solea were revisited in order to accurately represent the full life cycle with an original emphasis on larval stage, metamorphosis, reproduction rules and sexual differences. We first improved calibration thanks to the use of the estimation procedure developed by the DEB network coupled with a broad compilation of data from literature. Then, we validated this set of parameter estimates on independent datasets of i) individual monitoring of larval growth in controlled food conditions from a novel experiment, and ii) juvenile and adult growth, and female fecundity, from a natural population. Finally, we combined the DEB model developed in the present paper with we used a simple toxicokinetic (TK) model from literature. This TK model was also combined to a previous DEB model and was used to reproduce the mean trajectories of a growth and contamination dataset. We applied the same TK model with our DEB model considering inter-individual variability in food availability. This application highlighted the need to accurately consider inter-individual variability in ingestion to correctly estimate growth and contamination variability. The present work is the first step in the development of a mechanistic TK model that will be used in a companion paper for investigations of juvenile sole sensitivity to warming, nursery quality and prey contam
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- 2020
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44. Dietary bioaccumulation of persistent organic pollutants in the common sole Solea solea in the context of global change. Part 2: Sensitivity of juvenile growth and contamination to toxicokinetic parameters uncertainty and environmental conditions variability in estuaries
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Mounier, Florence, Loizeau, Veronique, Pecquerie, Laure, Drouineau, Hilaire, Labadie, Pierre, Budzinski, Hélène, Lobry, Jérémy, Mounier, Florence, Loizeau, Veronique, Pecquerie, Laure, Drouineau, Hilaire, Labadie, Pierre, Budzinski, Hélène, and Lobry, Jérémy
- Abstract
The amount of potentially toxic chemicals in a fish depends on various environmental factors, such as temperature and feeding ecology, which can be affected by Global Changes (GC). The main objective of the present work was to study the relative influence of temperature, food quality and food availability on the growth and contamination of juveniles of common sole (Solea solea), a marine flatfish species known to be a relevant indicator of the nursery quality. It focuses on two Persistent Organic Pollutants (CB153 and L-PFOS) of legacy and emerging concern, respectively. To achieve this, we used a toxicokinetic (TK) model in which toxicant flows are mechanistically predicted using a bioenergetic model based on the Dynamic Energy Budget (DEB) theory. This modelling framework was applied to juvenile sole from the Gironde estuary (SW France) and allows accounting for the influence of environmental conditions on fish biological processes involved in toxicant fluxes. To compare their respective influence on model predictions of age, length, and contamination at puberty, we included in a global sensitivity analysis: (1) environmental variability gathered from literature for this particular estuary and (2) TK parameters (i.e. assimilation efficiency AE and elimination rate ) variability and uncertainty gathered from literature about each contaminant but for different fish species and experimental conditions. Then, model predictions were confronted to fish contamination measurements from the Gironde Estuary with different combinations of TK parameter values from literature. Results highlighted a key role of diet composition on fish contamination and growth while water temperature only affected growth. It stressed the need to focus on GC impact on benthic communities and their consequences on juvenile fish diet for future work on GC scenarios. Furthermore, for both chemical, the range of variability of TK parameters from experiments led to underestimated fish contaminations.
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- 2020
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45. Mieux accompagner les familles dans le cadre de la pathologie chronique
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Valérie Loizeau
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Pharmacology (medical) - Published
- 2018
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46. Prévenir et agir face à la surexposition des jeunes enfants aux écrans
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Fontaines, Jessica, primary, Mathey, Sandra, additional, Dupont, Caroline, additional, and Loizeau, Valérie, additional
- Published
- 2021
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47. Short-term association of in-vehicle ultrafine particles and black carbon concentrations with respiratory health in Parisian taxi drivers
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Hachem, Melissa, primary, Loizeau, Maxime, additional, Saleh, Nadine, additional, Momas, Isabelle, additional, and Bensefa-Colas, Lynda, additional
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- 2021
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48. CBM Collaboration
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Ablyazimov, T., primary, Adak, R.P., additional, Adler, A., additional, Agarwal, A., additional, Agarwal, K., additional, Ahammed, Z., additional, Ahmad, A., additional, Ahmad, F., additional, Ahmad, N., additional, Akindinov, A., additional, Akishin, P., additional, Akishina, V., additional, Al-Turany, M., additional, Alekseev, I., additional, Alexandrov, E., additional, Alexandrov, I., additional, Andronic, A., additional, Appelshäuser, H., additional, Argintaru, D., additional, Arnoldi-Meadows, B., additional, Atkin, E., additional, Azmi, M.D., additional, Baban, V., additional, Bähr, S., additional, Bajdel, M., additional, Balassa, G., additional, Balzer, M., additional, Baranova, N., additional, Bashir, S., additional, Baszczyk, M., additional, Bechtel, E., additional, Becker, J., additional, Becker, K.-H., additional, Becker, M., additional, Beckhoff, J., additional, Belogurov, S., additional, Belousov, A., additional, Bendarouach, J., additional, Bercuci, A., additional, Berendes, R., additional, Bertini, D., additional, Bertini, O., additional, Bezshyyko, O., additional, Bhaduri, P.P., additional, Bhasin, A., additional, Bhat, S.A., additional, Bhat, W.A., additional, Bhattacharjee, B., additional, Bhattacharyya, A., additional, Bhattacharyya, T.K., additional, Biswas, S., additional, Blank, T., additional, Blau, D., additional, Blume, C., additional, Brzychczyk, J., additional, Bus, T., additional, Bychkov, A., additional, Cãlin, M., additional, Caselle, M., additional, Chakrabarti, A., additional, Chatterjee, S., additional, Chattopadhyay, S., additional, Chaus, A., additional, Cherif, H., additional, Chudoba, P., additional, Clerkin, E., additional, Csanád, M., additional, Dahm, P., additional, Das, Supriya, additional, Susovan, Das, additional, de Cuveland, J., additional, Demanov, A., additional, Dementiev, D., additional, Deng, Wendi, additional, Deng, Zhi, additional, Deppe, H., additional, Deppner, I., additional, Derenovskaya, O., additional, Deveaux, M., additional, Ding, Zhiguo, additional, Dong, Sheng, additional, Dorenskaya, E., additional, Dorosz, P., additional, Dubey, A.K., additional, Dubla, A., additional, Dürr, M., additional, Elsha, V.V., additional, Emschermann, D., additional, Engel, H., additional, Eşanu, T., additional, Eschke, J., additional, Esen, M., additional, Fan, Xingming, additional, Fateev, O., additional, Feier-Riesen, C., additional, Feng, Sheng-Qin, additional, Fidorra, F., additional, Figuli, S.P.D., additional, Finogeev, D., additional, Fischer, P., additional, Flemming, H., additional, Förtsch, J., additional, Foka, P., additional, Frankenfeld, U., additional, Friese, V., additional, Friske, E., additional, Fröhlich, I., additional, Frühauf, J., additional, Galatyuk, T., additional, Ganai, R., additional, Gangopadhyay, G., additional, Gao, Xin, additional, Gasik, P., additional, Geßler, T., additional, Ghosh, C., additional, Ghosh, S.K., additional, Giang, D., additional, Gläßel, S., 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Zinchenko, A., additional, Zivko, I., additional, Żoładź, M., additional, Zorn, F., additional, Zubrzycka, W., additional, Zumbruch, P., additional, and Zyzak, M., additional
- Published
- 2021
- Full Text
- View/download PDF
49. Planetary Terrestrial Analogues Library project: 2. building a laboratory facility for MicrOmega characterization
- Author
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Loizeau, Damien, primary, Lequertier, Guillaume, additional, Poulet, François, additional, Hamm, Vincent, additional, Pilorget, Cédric, additional, Meslier-Lourit, Lionel, additional, Lantz, Cateline, additional, Werner, Stephanie C., additional, Rull, Fernando, additional, and Bibring, Jean-Pierre, additional
- Published
- 2020
- Full Text
- View/download PDF
50. PH-0242: Maximizing the benefit of limited proton therapy resources through combined proton-photon treatments
- Author
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Loizeau, N., primary, Fabiano, S., additional, Papp, D., additional, Jakobi, A., additional, Stützer, K., additional, Richter, C., additional, and Unkelbach, J., additional
- Published
- 2020
- Full Text
- View/download PDF
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