43 documents found, page 1 of 5
Gelatin-based ballistic gel formulated with phytosynthesized nanocellulose from...
Jeevanandam, Jaison; Castro, Rita; Rodrigues, João; Castro, Rita; Rodrigues, JoãoArundo donax, an indigenous plant in the Mediterranean region, has affected the growth of native vegetation as an invasive plant, ultimately reducing soil quality and affecting the food chain in several areas of the world. Thus, the present work aims to obtain cellulose from the A. donax leaf extract via organosolv fractionation and bleaching method, followed by centrifugal fractionation to yield nanocellulose ...
Enhanced alpha-amylase inhibition activity of amine-terminated PAMAM dendrimer ...
Jeevanandam, Jaison; Gonçalves, Mara; Castro, Rita; Gallo, Juan; Bañobre-López, Manuel; Rodrigues, João; Gonçalves, Mara; Castro, Rita; Rodrigues, JoãoThe present work aims to prepare copper-doped MgO nanoparticles via a sol-gel approach and study their antidiabetic alpha-amylase inhibition activity with undoped MgO nanoparticles. The ability of G5 amine terminated polyamidoamine (PAMAM) dendrimer for the controlled release of copper-doped MgO nano particles to exhibit alpha-amylase inhibition activity was also evaluated. The synthesis of MgO nanoparticles vi...
Caracterização genotípica e fenotípica de estirpes de Escherichia coli patogéni...
Batista, Rita; Saraiva, Margarida; Lopes, Teresa; Silveira, Leonor; Coelho, Anabela; Furtado, Rosália; Castro, Rita; Correia, Cristina BeloAs aves são potenciais portadoras de microrganismos patogénicos que afetam os seres humanos, e podem ser disseminadoras de perigos no ambiente de produção primária de géneros alimentícios de origem vege- tal e animal. Este trabalho teve como objetivo avaliar a ocorrência, em fezes de aves em liberdade, em Portugal, de três bactérias zoonóticas causadoras de infeções no Homem. Para tal, foi avaliada a presença d...
Molecular epidemiology of Clostridioides difficile in companion animals: Geneti...
Alves, Frederico; Castro, Rita; Pinto, Miguel; Nunes, Alexandra; Pomba, Constança; Oliveira, Manuela; Silveira, Leonor; Gomes, João PauloIntroduction: The changing epidemiology of Clostridioides difficile reflects a well-established and intricate community transmission network. With rising numbers of reported community-acquired infections, recent studies tried to identify the role played by non-human reservoirs in the pathogen's transmission chain. This study aimed at describing the C. difficile strains circulating in canine and feline populatio...
Escherichia coli patogénica, Salmonella spp. e Campylobacter spp. em dois Centr...
Pista, Ângela; Silveira, Leonor; Ribeiro, Sofia; Fontes, Mariana; Castro, Rita; Coelho, Anabela; Furtado, Rosália; Lopes, Teresa; Maia, CarlaA coexistência entre humanos e animais selvagens pode aumentar o risco de transmissão direta de agentes patogénicos zoonóticos emergentes ou reemergentes para humanos. Este trabalho teve como objetivo avaliar a ocorrência de três importantes agentes patogénicos de origem alimentar em animais selvagens de dois centros de conservação da vida selvagem, em Portugal. Para tal, foram testadas 132 amostras fecais para...
Molecular epidemiology of Clostridioides difficile in companion animals: Geneti...
Alves, Frederico; Castro, Rita; Pinto, Miguel; Nunes, Alexandra; Pomba, C.; Oliveira, Manuela; Silveira, Leonor; Gomes, Joao Paulo; Oleastro, MonicaIntroduction: The changing epidemiology of Clostridioides difficile reflects a well-established and intricate community transmission network. With rising numbers of reported community-acquired infections, recent studies tried to identify the role played by non-human reservoirs in the pathogen's transmission chain. This study aimed at describing the C. difficile strains circulating in canine and feline populatio...
The role of Anaesthesiologists at Different Levels of Difficult Airway Manageme...
Pacheco, Marta; Castro, Rita; Aguiar, José; Órfão, JorgeMucopolysaccharidoses are a group of lysosomal storage diseases. The deficiency of specific lysosomal enzymes leads to accumulation of glycosaminoglycans (GAGs) in the tissues and organs. Patients had Difficult Airway (DA) criteria: long epiglottis, anterior larynx, small trachea, short neck, temporo-mandibular joint rigidity, cervical instability and complications with difficult ventilation and oxygenation. We...
Assessment of the Transmission Dynamics of Clostridioides difficile in a Farm E...
Alves, Frederico; Nunes, Alexandra; Castro, Rita; Sequeira, António; Moreira, Olga; Matias, Rui; Rodrigues, João Carlos; Silveira, LeonorThe recent increase in community-acquired Clostridioides difficile infections discloses the shift in this bacterium epidemiology. This study aimed at establishing a transmission network involving One Health components, as well as assessing the zoonotic potential and genomic features of dominant clones. Samples were collected from different compartments of animal, human and environmental origin, from an animal p...
Genotypic and Phenotypic Characterization of Pathogenic Escherichia coli, Salmo...
Batista, Rita; Saraiva, Margarida; Lopes, Teresa; Silveira, Leonor; Coelho, Anabela; Furtado, Rosália; Castro, Rita; Correia, Cristina BeloBirds are potential carriers of pathogens affecting humans and agriculture. Aiming to evaluate the occurrence of the top three most important foodborne pathogens in free-living birds in Portugal, we investigated 108 individual fecal samples from free-living birds and one pooled sample of gull feces (n = 50) for the presence of Escherichia coli (pathogenic and non-pathogenic), Salmonella spp. and Campylobacter s...
Pathogenic Escherichia coli, Salmonella spp. and Campylobacter spp. in Two Natu...
Pista, Angela; Silveira, Leonor; Ribeiro, Sofia; Fontes, Mariana; Castro, Rita; Coelho, Anabela; Furtado, Rosália; Lopes, Teresa; Maia, CarlaHuman–wildlife coexistence may increase the potential risk of direct transmission of emergent or re-emergent zoonotic pathogens to humans. Intending to assess the occurrence of three important foodborne pathogens in wild animals of two wildlife conservation centers in Portugal, we investigated 132 fecal samples for the presence of Escherichia coli (Shiga toxin-producing E. coli (STEC) and non-STEC), Salmonella ...