12 documents found, page 1 of 2
Serogrouping and Molecular Characterization of ESBL-Producing Avian Pathogenic ...
Chenouf, Nadia Safia; Messaï, Chafik Redha; Carvalho, Isabel; Álvarez-Gómez, Tamara; Silva, Vanessa; Zitouni, Abdelghani; Hakem, Ahcene; Poeta, PatriciaFunding Information: This work was supported in part by projects UI/00772 and LA/P/0059/2020 funded by the Portuguese Foundation for Science and Technology (FCT). Publisher Copyright: © 2025 by the authors.; Avian colibacillosis caused by avian pathogenic Escherichia coli (APEC) strains is a bacterial disease responsible for enormous economic losses in the poultry industry, due to high mortality rates in farms,...
Comparative analysis of antibiotic resistance and biofilm formation in Enteroco...
Silva, Vanessa; Freitas, Catarina; Ribeiro, Jessica; Igrejas, Gilberto; Poeta, PatriciaFunding Information: This work was supported by the projects UIDB/00772/2020 (doi:10.54499/UIDB/00772/2020) funded by the Portuguese Foundation for Science and Technology (FCT). This work received financial support from FCT/MCTES (UIDB/50006/2020 DOI 10.54499/UIDB/50006/2020) through national funds. Publisher Copyright: © The Author(s) 2025. Published by Oxford University Press on behalf of FEMS.; The rise of a...
Resistome, Virulome, and Clonal Variation in Methicillin-Resistant Staphylococc...
Silva, Vanessa; Silva, Adriana; Barbero, Raquel; Romero, Mario; del Campo, Rosa; Caniça, Manuela; Cordeiro, Rui; Igrejas, Gilberto; Poeta, PatriciaPublisher Copyright: © 2024 by the authors.; This cross-sectional study investigates the methicillin-resistant Staphylococcus aureus (MRSA): its prevalence, antimicrobial resistance, and molecular characteristics in healthy swine populations in central Portugal. A total of 213 samples were collected from pigs on twelve farms, and MRSA prevalence was assessed using selective agar plates and confirmed via molecul...
Comprehensive Profiling of Klebsiella in Surface Waters from Northern Portugal
Araújo, Sara; Silva, Vanessa; de Lurdes Enes Dapkevicius, Maria; Pereira, José Eduardo; Martins, Ângela; Igrejas, Gilberto; Poeta, PatriciaPublisher Copyright: © 2024 by the authors.; This study investigates the prevalence of resistance and virulence genes in Klebsiella isolates from surface waters in Northern Portugal, within the broader context of freshwater quality challenges in Southern Europe. The aim of this research is to explain how Klebsiella dynamics, antibiotic resistance, and biofilm formation interact in surface waters. Antimicrobial ...
Klebsiella in Wildlife
Quintelas, Micaela; Silva, Vanessa; Araújo, Sara; Tejedor-Junco, Maria Teresa; Pereira, José Eduardo; Igrejas, Gilberto; Poeta, Patricia© 2024 by the authors. Licensee MDPI, Basel, Switzerland.; Klebsiella spp. are a genus of Gram-negative, opportunistic bacteria frequently found in the flora of the mucosal membranes of healthy animals and humans, and in the environment. Species of this group can cause serious infections (meningitis, sepsis, bacteraemia, urinary tract infections, liver damage) and possible death in immunocompromised organisms (...
Study of Antimicrobial Resistance, Biofilm Formation, and Motility of Pseudomon...
de Sousa, Telma; Hébraud, Michel; Alves, Olimpia; Costa, Eliana; Maltez, Luís; Pereira, José Eduardo; Martins, Ângela; Igrejas, GilbertoFunding Information: This research was funded by FCT (Fundação para a Ciência e a Tecnologia) related to a PhD grant, through the reference DFA/BD/5332/2020. Publisher Copyright: © 2023 by the authors.; Pseudomonas aeruginosa causes urinary tract infections associated with catheters by forming biofilms on the surface of indwelling catheters. Therefore, controlling the spread of the bacteria is crucial to preven...
The Impact of the Virulence of Pseudomonas aeruginosa Isolated from Dogs
de Sousa, Telma; Garcês, Andreia; Silva, Augusto; Lopes, Ricardo; Alegria, Nuno; Hébraud, Michel; Igrejas, Gilberto; Poeta, PatriciaFunding Information: This research was funded by FCT (Fundação para a Ciência e a Tecnologia) related to PhD grant, through the reference DFA/BD/5332/2020. Publisher Copyright: © 2023 by the authors.; Pseudomonas aeruginosa is a pathogenic bacterium that can cause serious infections in both humans and animals, including dogs. Treatment of this bacterium is challenging because some strains have developed multi-d...
Putative protein biomarkers of escherichia coli antibiotic multiresistance iden...
de Sousa, Telma; Viala, Didier; Théron, Laetitia; Chambon, Christophe; Hébraud, Michel; Poeta, Patricia; Igrejas, GilbertoAção n.º: TC-14/2017 UIDB/50006/2020; The commensal bacteria Escherichia coli causes several intestinal and extra-intestinal diseases, since it has virulence factors that interfere in important cellular processes. These bacteria also have a great capacity to spread the resistance genes, sometimes to phylogenetically distant bacteria, which poses an additional threat to public health worldwide. Here, we aimed to...
Absence of methicillin-resistant Staphylococcus aureus (MRSA) in cattle from Po...
Correia, Susana; Silva, Vanessa; García-Díez, Juan; Teixeira, Paula; Pimenta, Kevin; Tejedor-Junco, María Teresa; Oliveira, Soraia; Igrejas, GilbertoThis work was funded by the R&D Project CAREBIO2 - Comparative assessment of antimicrobial resistance in environmental biofilms through proteomics - towards innovative theranostic biomarkers, with reference NORTE-01-0145-FEDER-030101 and PTDC/SAU-INF/30101/2017, financed by the European Regional Development Fund (ERDF) through the Northern Regional Operational Program (NORTE 2020) and the Foundation for Science...
New Synthesis of Gold- and Silver-Based Nano-Tetracycline Composites
Djafari, Jamila; Marinho, Catarina; Santos, Tiago; Igrejas, Gilberto; Torres, Carmen; Capelo, José Luis; Poeta, Patricia; Lodeiro, CarlosJ.D., C.L,. and J.F.-L. conceived and designed the experiments; J.D. and J.F.-L. performed the synthesis and characterization of the TC functionalized Ag and Au NPs, as well as the metal-ion sensing studies. C.M., T.S., G.I., and P.P. studied the bacterial interactions with the NPs. C.T. provided the TC bacterial resistant strains. All authors have analyzed the data. J.F.L., J.D., C.L, J.L.-C., C.M., P.P., and ...