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- New approach methodologies to enhance human health risk assessment of immunotoxic properties of chemicals - a PARC (Partnership for the Assessment of Risk from Chemicals) projectPublication . Snapkow, Igor; Smith, Nicola M.; Arnesdotter, Emma; Beekmann, Karsten; Blanc, Etienne B.; Braeuning, Albert; Corsini, Emanuela; Sollner Dolenc, Marija; Duivenvoorde, Loes P.M.; Sundstøl Eriksen, Gunnar; Franko, Nina; Galbiati, Valentina; Gostner, Johanna M.; Grova, Nathalie; Gutleb, Arno C.; Hargitai, Rita; Janssen, Aafke W.F.; Krapf, Solveig A.; Lindeman, Birgitte; Lumniczky, Katalin; Maddalon, Ambra; Mollerup, Steen; Parráková, Lucia; Pierzchalski, Arkadiusz; Pieters, Raymond H.H.; Silva, Maria Joao; Solhaug, Anita; Staal, Yvonne C.M.; Straumfors, Anne; Szatmári, Tünde; Turner, Jonathan D.; Vandebriel, Rob J.; Zenclussen, Ana Claudia; Barouki, RobertAs a complex system governing and interconnecting numerous functions within the human body, the immune system is unsurprisingly susceptible to the impact of toxic chemicals. Toxicants can influence the immune system through a multitude of mechanisms, resulting in immunosuppression, hypersensitivity, increased risk of autoimmune diseases and cancer development. At present, the regulatory assessment of the immunotoxicity of chemicals relies heavily on rodent models and a limited number of Organisation for Economic Co-operation and Development (OECD) test guidelines, which only capture a fraction of potential toxic properties. Due to this limitation, various authorities, including the World Health Organization and the European Food Safety Authority have highlighted the need for the development of novel approaches without the use of animals for immunotoxicity testing of chemicals. In this paper, we present a concise overview of ongoing efforts dedicated to developing and standardizing methodologies for a comprehensive characterization of the immunotoxic effects of chemicals, which are performed under the EU-funded Partnership for the Assessment of Risk from Chemicals (PARC).
- Unveiling Antibiotic Resistance, Clonal Diversity, and Biofilm Formation in Isolated from Healthy Swine in PortugalPublication . Silva, Adriana; Silva, Vanessa; Dapkevicius, Maria de Lurdes Enes; Azevedo, Mónica; Cordeiro, Rui; Pereira, José Eduardo; Valentão, Patrícia; Falco, Virgílio; Igrejas, Gilberto; Caniça, Manuela; Poeta, PatríciaEscherichia coli, a commensal microorganism found in the gastrointestinal tract of human and animal hosts, plays a central role in agriculture and public health. Global demand for animal products has promoted increased pig farming, leading to growing concerns about the prevalence of antibiotic-resistant E. coli strains in swine populations. It should be noted that a significant portion of antibiotics deployed in swine management belong to the critically important antibiotics (CIA) class, which should be reserved for human therapeutic applications. This study aimed to characterize the prevalence of antibiotic resistance, genetic diversity, virulence characteristics, and biofilm formation of E. coli strains in healthy pigs from various farms across central Portugal. Our study revealed high levels of antibiotic resistance, with resistance to tetracycline, ampicillin, tobramycin, and trimethoprim-sulfamethoxazole. Multidrug resistance is widespread, with some strains resistant to seven different antibiotics. The ampC gene, responsible for broad-spectrum resistance to cephalosporins and ampicillin, was widespread, as were genes associated with resistance to sulfonamide and beta-lactam antibiotics. The presence of high-risk clones, such as ST10, ST101, and ST48, are a concern due to their increased virulence and multidrug resistance profiles. Regarding biofilm formation, it was observed that biofilm-forming capacity varied significantly across different compartments within pig farming environments. In conclusion, our study highlights the urgent need for surveillance and implementation of antibiotic management measures in the swine sector. These measures are essential to protect public health, ensure animal welfare, and support the swine industry in the face of the growing global demand for animal products.
- Democratising participatory health promotion: power and knowledge involved in engaging European adolescents in childhood obesity preventionPublication . Baillergeau, Evelyne; Veltkamp, Gerlieke; Bröer, Christian; Helleve, Arnfinn; Kulis, Ewa; Lien, Nanna; Luszczynska, Aleksandra; Mendes, Sofia; Rito, Ana; Moerman, Gerben; Sauvage Nolting, Rein de; Klepp, Knut-IngePublic policy aimed at preventing undesired phenomena has increasingly sought to engage representatives of the target population. Little is known, however, about how power dynamics function to shape the processes and outcomes of risk governance engagement interventions. In order to study the ways in which, and the extent to which, power differentials can be reduced in participatory health promotion initiatives, we develop a conceptual framework synthetising theories of participatory action, phenomenology and governmentality. Based on the empirical research into youth participation in the EU project CO-CREATE, involving 15–19-year-old adolescents in five European countries (2019–2021), we show that diverse forms of knowledge may become available in engagement interventions. We analyse the use and relative inclusion and exclusion of these different forms of knowledge in terms of a three-level framework of different depths of democratisation in participatory health promotion: risk management, risk definition and risk negotiation. Advanced democratisation can only be achieved if risk negotiation is carried out in ways which embrace and encourage a range of different, and potentially conflicting forms of knowing.