Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Concept

Carbapénème

Publications associées (15)

Neonatal Manifestations of Chronic Granulomatous Disease: MAS/HLH and Necrotizing Pneumonia as Unusual Phenotypes and Review of the Literature

Alessandro Borghesi

Chronic granulomatous disease (CGD) is a rare inborn error of immunity (IEI), characterized by a deficient phagocyte killing due to the inability of NADPH oxidase to produce reactive oxygen species in the phagosome. Patients with CGD suffer from severe and ...

SPRINGER/PLENUM PUBLISHERS2022

Revealing Antibiotic Tolerance of the Mycobacterium smegmatis Xanthine/Uracil Permease Mutant Using Microfluidics and Single-Cell Analysis

John McKinney, Neeraj Dhar, Meltem Elitas

To reveal rare phenotypes in bacterial populations, conventional microbiology tools should be advanced to generate rapid, quantitative, accurate, and high-throughput data. The main drawbacks of widely used traditional methods for antibiotic studies include ...

MDPI2021

An experiment-informed signal transduction model for the role of the Staphylococcus aureus MecR1 protein in beta-lactam resistance

Matteo Dal Peraro, Luciano Andres Abriata

The treatment of hospital- and community-associated infections by methicillin-resistant Staphylococcus aureus (MRSA) is a perpetual challenge. This Gram-positive bacterium is resistant specifically to beta-lactam antibiotics, and generally to many other an ...

Springer Nature2019

Bactericidal activity and mechanism of action of copper-sputtered flexible surfaces against multidrug-resistant pathogens

César Pulgarin, Juan Kiwi, Sami Rtimi, Myriam Koumba Sarah Ballo

Using direct current magnetron sputtering (DCMS), we generated flexible copper polyester surfaces (Cu-PES) and investigated their antimicrobial activity against a range of multidrug-resistant (MDR) pathogens including eight Gram-positive isolates (three me ...

Springer Verlag2016

Exome Sequencing Reveals Primary Immunodeficiencies in Children with Community-Acquired Pseudomonas aeruginosa Sepsis

Jacques Fellay, Paul Jack Mc Laren, Istvan Bartha, Samira Asgari

One out of three pediatric sepsis deaths in high income countries occur in previously healthy children. Primary immunodeficiencies (PIDs) have been postulated to underlie fulminant sepsis, but this concept remains to be confirmed in clinical practice. Pseu ...

Frontiers Media Sa2016

Rapid Cytolysis of Mycobacterium tuberculosis by Faropenem, an Orally Bioavailable beta-Lactam Antibiotic

John McKinney, Neeraj Dhar, François Signorino-Gelo

Recent clinical studies indicate that meropenem, a beta-lactam antibiotic, is a promising candidate for therapy of drug-resistant tuberculosis. However, meropenem is chemically unstable, requires frequent intravenous injection, and must be combined with a ...

American Society for Microbiology2015

Combinations of beta-Lactam Antibiotics Currently in Clinical Trials Are Efficacious in a DHP-I-Deficient Mouse Model of Tuberculosis Infection

John McKinney, Neeraj Dhar

We report here a dehydropeptidase-deficient murine model of tuberculosis (TB) infection that is able to partially uncover the efficacy of marketed broad-spectrum beta-lactam antibiotics alone and in combination. Reductions of up to 2 log CFU in the lungs o ...

American Society for Microbiology2015

Lansoprazole is an antituberculous prodrug targeting cytochrome bc1

Stewart Cole, Claudia Sala, Florence Pojer, Andrej Benjak, Anthony Vocat, Philippe Busso, Jan Lars Rybniker

Better antibiotics capable of killing multi-drug-resistant Mycobacterium tuberculosis are urgently needed. Despite extensive drug discovery efforts, only a few promising candidates are on the horizon and alternative screening protocols are required. Here, ...

Nature Publishing Group2015

Tetracyclines Disturb Mitochondrial Function across Eukaryotic Models: A Call for Caution in Biomedical Research

Johan Auwerx, Bart Deplancke, Laurent Mouchiroud, Richardus Houtkooper, Evan Graehl Williams, Dongryeol Ryu, Norman Lionel Moullan, Adrienne Joëlle Laurence Mottis, Xu Wang, Michael Vincent Frochaux, Virginija Jovaisaite

In recent years, tetracyclines, such as doxycycline, have become broadly used to control gene expression by virtue of the Tet-on/Tet-off systems. However, the wide range of direct effects of tetracycline use has not been fully appreciated. We show here tha ...

Elsevier2015

Sources, Spreading and Fate of Antibiotic Resistance Genes and Resistant Bacteria in Vidy Bay, Lake Geneva, Switzerland

Nadine Czekalski

Increasing numbers of multiresistant bacterial pathogens cause severe health problems on a global scale. Large quantities of bacteria and their resistance genes are discharged into natural environments via human and animal waste. Not much is known so far a ...

EPFL2013

Rapid detection of bacterial resistance to antibiotics using AFM cantilevers as nanomechanical sensors

Giovanni Dietler, Sandor Kasas, Giovanni Longo, Livan Bladimir Alonso Sarduy, Justin Terence Notz Pekkanen

The widespread misuse of drugs has increased the number of multiresistant bacteria1, and this means that tools that can rapidly detect and characterize bacterial response to antibiotics are much needed in the management of infections. Various techniques, s ...

Nature Publishing Group2013

Combination of fluorescence microscopy and nanomotion detection to characterize bacteria

Giovanni Dietler, Sandor Kasas, Giovanni Longo, Justin Terence Notz Pekkanen

Antibiotic-resistant pathogens are a major health concern in everyday clinical practice. Because their detection by conventional microbial techniques requires minimally 24h, some of us have recently introduced a nanomechanical sensor, which can reveal moti ...

Wiley-Blackwell2013

Common mechanistic features among metallo-β-lactamases: a computational study of Aeromonas hydrophila CphA enzyme

Matteo Dal Peraro, Andrea Cavalli

Metallo-β-lactamases (MβLs) constitute an increasingly serious clinical threat by giving rise to β-lactam antibiotic resistance. They accommodate in their catalytic pocket one or two zinc ions, which are responsible for the hydrolysis of β-lactams. Recent ...

2009

Genome-wide regulon and crystal structure of BlaI (Rv1846c) from Mycobacterium tuberculosis

Stewart Cole, Claudia Sala

Comparative genomics with Staphylococcus aureus suggested the existence of a regulatory system governing beta-lactamase (BlaC) production in Mycobacterium tuberculosis. The crystal structure of Rv1846c, a winged helix regulator of previously unknown functi ...

2009

Biomimetic Total Synthesis and Antimicrobial Evaluation of Anachelin H

Karl Gademann

The first biomimetic total synthesis of the iron chelator anachelin H isolated from the cyanobacterium Anabaena cylindrica is reported. A first generation approach delivered one enantiomeric series of the polyketide fragment. Comparison of the 1H NMR data ...

2007