Publications by authors named "Ana Luisa Andrade-Oliveira"

Aims: This study aimed to assess the antimicrobial potential of Bp1-AdE, produced by Bacillus pumilus 64-1, and to investigate its mode of action against Staphylococcus aureus and methicillin-resistant S. aureus (MRSA).

Methods And Results: Bp-1AdE, derived from sponge-associated B.

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Invertebrates can provide a valuable alternative to traditional vertebrate animal models for studying bacterial and fungal infections. This study aimed to establish the larvae of the coleoptera Tenebrio molitor (mealworm) as an in vivo model for evaluating virulence and horizontal gene transfer between Staphylococcus spp. After identifying the best conditions for rearing T.

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As preconized by the One Health concept, the intimate relationship between pets and owners is a common source for the trade of microorganisms with zoonotic potential, and with them, antimicrobial resistance genes. In this work, we evaluated the presence of antimicrobial resistance genes, that are usually within mobile genetic elements, in a laboratory collection of 79 canine Staphylococcus strains, mostly Staphylococcus pseudintermedius and Staphylococcus coagulans. Resistance to tetracycline was observed in 34% of the strains, followed by resistance to erythromycin (21%) and gentamicin (19%).

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is a commensal bacterium from the oral microbiota of domestic cats, with a still obscure clinical importance. In this work, we analysed the ability of feline strains of to transfer antimicrobial resistance genes to isolated from humans through plasmids. To this end, we first analysed all publicly available genomes from cat staphylococci using computational methods to build a pan-resistome.

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The close contact between pets and their owners is a potential source for microorganisms and genetic material exchange. Staphylococcus species considered as harmless inhabitants of animals' and humans' microbiota can act as reservoirs of antimicrobial resistance genes to more virulent species, thereby increasing their potential to resist drug therapy. This process could be inhibited by the antiplasmid immunity conferred by CRISPR systems.

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