Synergistic effect of the combination of phenolic compounds and tobramycin on the inhibition of Pseudomonas aeruginosa biofilm.

Bacteria coordinate gene expression in a cell density-dependent manner using a communication process called quorum sensing (QS). The expression of virulence factors, biofilm formation and enzyme production are examples of QS-regulated phenotypes that can interfere with food quality and safety. Due to the importance of these phenotypes, the inhibition of bacterial communication as an anti-virulence strategy is of great interest.

Using "Adopt a Bacterium" as an e-learning tool for simultaneously teaching microbiology to different health-related university courses.

The COVID-19 pandemic has posed challenges for education, particularly in undergraduate teaching. In this study, we report on the experience of how a private university successfully addressed this challenge through an active methodology applied to a microbiology discipline offered remotely to students from various health-related courses (veterinary, physiotherapy, nursing, biomedicine, and nutrition). Remote teaching was combined with the "Adopt a Bacterium" methodology, implemented for the first time on Google Sites.

-acetylcysteine (NAC) attenuates quorum sensing regulated phenotypes in PAO1.

The expression of many virulence genes in bacteria is regulated by quorum sensing (QS), and the inhibition of this mechanism has been intensely investigated. -acetylcysteine (NAC) has good antibacterial activity and is able to interfere with biofilm-related respiratory infections, but little is known whether this compound has an effect on bacterial QS communication. This work aimed to evaluate the potential of NAC as a QS inhibitor (QSI) in PAO1 through and analyses, as well as in combination with the antibiotic tobramycin.

Convergence of virulence and resistance in international clones of WHO critical priority enterobacterales isolated from Marine Bivalves.

The global spread of critical-priority antimicrobial-resistant Enterobacterales by food is a public health problem. Wild-caught seafood are broadly consumed worldwide, but exposure to land-based pollution can favor their contamination by clinically relevant antimicrobial-resistant bacteria. As part of the Grand Challenges Explorations: New Approaches to Characterize the Global Burden of Antimicrobial Resistance Program, we performed genomic surveillance and cell culture-based virulence investigation of WHO critical priority Enterobacterales isolated from marine bivalves collected in the Atlantic Coast of South America.

Comparison of hybrid learning and remote education in the implementation of the "Adopt a Microorganism" methodology.

The Internet has changed the way teachers and students access information and build knowledge. The recent COVID-19 pandemic has created challenges for both teachers and students and a demand for new methodologies of remote learning. In the life sciences, mixing online content with practical activities represents an even greater challenge.