Results 41 to 50 of about 981,613 (404)

Outer Membrane Lipid Secretion and the Innate Immune Response to Gram-Negative Bacteria

Infection and Immunity, 2020
The outer membrane (OM) of Gram-negative bacteria is an asymmetric lipid bilayer that consists of inner leaflet phospholipids and outer leaflet lipopolysaccharides (LPS). The asymmetric character and unique biochemistry of LPS molecules contribute to the
Nicole P. Giordano, Melina B. Cian, Zachary D. Dalebroux   +2 more
semanticscholar   +1 more source

Role of the cell-wall structure in the retention of bacteria by microfiltration membranes [PDF]

, 2009
This experimental study investigates the retention of bacteria by porous membranes. The transfer of bacteria larger than the nominal pore size of microfiltration track-etched membranes has been studied for several kinds of bacterial strains.
Aimar, Pierre, Causserand, Christel, Lebleu, Nathalie, Roques, Christine   +3 more
core   +1 more source

A single Proteus mirabilis lineage from human and animal sources: a hidden reservoir of OXA-23 or OXA-58 carbapenemases in Enterobacterales

Scientific Reports, 2020
In Enterobacterales, the most common carbapenemases are Ambler’s class A (KPC-like), class B (NDM-, VIM- or IMP-like) or class D (OXA-48-like) enzymes. This study describes the characterization of twenty-four OXA-23 or OXA-58 producing-Proteus mirabilis ...
Rémy A. Bonnin, Delphine Girlich, Agnès B. Jousset, Lauraine Gauthier, Gaëlle Cuzon, Pierre Bogaerts, Marisa Haenni, Jean-Yves Madec, Elodie Couvé-Deacon, Olivier Barraud, Nicolas Fortineau, Philippe Glaser, Youri Glupczynski, Laurent Dortet, Thierry Naas   +14 more
doaj   +1 more source

Human platelet activation by Escherichia coli: roles for FcγRIIA and integrin αIIbβ3 [PDF]

, 2016
Gram-negative Escherichia coli cause diseases such as sepsis and hemolytic uremic syndrome in which thrombotic disorders can be found. Direct platelet–bacterium interactions might contribute to some of these conditions; however, mechanisms of human ...
Arman, Mònica, Cox, Dermot, Henderson, Ian R., Kerrigan, Steven W., Watson, Callum N., Watson, Steve P.   +5 more
core   +3 more sources

Five-year period evaluation of isolated agents and their resistance profiles in intensive care unit patients with malignancy

Journal of Infection in Developing Countries, 2020
Introduction: Patients treated in the intensive care unit (ICU) are usually patients who deteriorated health condition and could have longer hospital stay compared to other patients. Hospital infections are more common in ICU patients.
Duygu Mert, Selda Muslu, Alparslan Merdin, Arif Timuroğlu, Ece Dirim, Süheyla Ünver, Mustafa Ertek   +6 more
doaj   +1 more source

Rectification of Swimming Bacteria and Self Driven Particle Systems by Arrays of Asymmetric Barriers [PDF]

Phys. Rev. Lett. 101, 018102 (2008), 2007
We show that the recent experimental observation of the rectification of swimming bacteria in a system with an array of asymmetric barriers occurs due to the ballistic component of the bacteria trajectories introduced by the bacterial "motor." Each bacteria selects a random direction for motion and then moves in this direction for a fixed period of ...
arxiv   +1 more source

Epidemiology and Diagnostics of Carbapenem Resistance in Gram-negative Bacteria

Clinical Infectious Diseases, 2019
Carbapenem resistance in gram-negative bacteria has caused a global epidemic that continues to grow. Although carbapenemase-producing Enterobacteriaceae have received the most attention because resistance was first reported in these pathogens in the ...
P. Nordmann, L. Poirel
semanticscholar   +1 more source

Molecular surveillance of carbapenemase-producing Pseudomonas aeruginosa at three medical centres in Cologne, Germany

Antimicrobial Resistance and Infection Control, 2019
Background Pseudomonas aeruginosa is a common pathogen causing hospital-acquired infections. Carbapenem resistance in P. aeruginosa is either mediated via a combination of efflux pumps, AmpC overexpression, and porin loss, or through an acquired ...
Elena Schäfer, Monika Malecki, Carlos J. Tellez-Castillo, Niels Pfennigwerth, Lennart Marlinghaus, Paul G. Higgins, Frauke Mattner, Andreas F. Wendel   +7 more
doaj   +1 more source

A Novel, Time-effective Approach for Capturing Bacteria from Contaminated Urine Samples [PDF]

arXiv, 2021
A fundamental step in the race to design a rapid diagnostic test for antimicrobial resistance is the separation of bacteria from their matrix. Many recent studies have been focused on the development of systems capable of separating and capturing bacteria from different liquid environments. Herein, we introduce a new approach to this issue by using the
arxiv  

Microbial community dynamics during composting of sewage sludge and straw studied through phospholipid and neutral lipid analysis [PDF]

, 2008
The composting process involves a succession of different communities of microorganisms that decompose the initial material, transforming it into a stable final product. In thiswork, the levels of phospholipid fatty acid (PLFA), neutral lipid fatty acid (
Amir, Soumia, Hafidi, Mohamed, Merlina, Georges, Pinelli, Eric, Revel, Jean-Claude, Winterton, Peter   +5 more
core   +2 more sources