Results 111 to 120 of about 762,836 (292)

Probing the Role of Asn 152 in the Class C β-lactamase AmpC

, 2012
AmpC, a class C β-lactamase, is a main cause of antibiotic resistance to cephalosporins in many species of bacteria. The current proposed mechanism of action involves an acyl-intermediate, where the enzyme becomes covalently attached to the drug at ...
Powers, Rachel, Leonard, David, Anwar, Mujahid, Docter, Brianne, Wallar, Bradley   +4 more
core  

Duplex Recombinase Polymerase Amplification‐Lateral Flow Assay for Rapid Visual Detection of Critical Antibiotic Resistance Genes in Escherichia coli and Klebsiella pneumoniae From Positive Blood Cultures

Journal of Clinical Laboratory Analysis, EarlyView.
This study developed a pair of duplex RPA‐LFA assays for the simultaneous detection of critical resistance genes, blaCTX‐M/mcr‐1 and blaoxa‐48‐like/blaNDM, from hemoculture samples. Under optimized conditions, duplex RPA was performed at 37°C–38°C for 25 min, followed by LFA for 10–15 min.
Variya Nemidkanam, Pattamaporn Deechart, Nuntaree Chaichanawongsaroj   +2 more
wiley   +1 more source

Expanding the β‐Lactamase Family in the Human Microbiome

Advanced Science
β‐lactams, the most common antibiotics globally, have resistance primarily determined by β‐lactamases. Human microbiota and β‐lactams influence mutually; however, β‐lactamase variety and abundance in the human microbiome remain partially understood. This
Baolei Jia, Ju Hye Baek, Jae Kyeong Lee, Ying Sun, Kyung Hyun Kim, Ji Young Jung, Che Ok Jeon   +6 more
doaj   +1 more source

On‐site pilot‐scale advanced oxidation pretreatment of hospital wastewater: assessment of pharmaceuticals, pathogens, antibiotic resistance genes and acute ecotoxicity

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Hospital premises generate wastewater containing a wide spectrum of contaminants, such as pharmaceutically active compounds (PhACs), antibiotic resistance genes (ARGs) and pathogenic microorganisms, whilst plenty of them are classified under the antibiotic resistant bacteria (ΑRΒ) category.
Andreas Kaliakatsos, Iosifina Gounaki, Spyros Dokianakis, Georgios Gkotsis, Maria‐Christina Nika, Eleni Aleiferi, Athanasios S Stasinakis, Nikos Katsarakis, Nikolaos S Thomaidis, Thrassyvoulos Manios, Michalis S Fountoulakis, Danae Venieri   +11 more
wiley   +1 more source

MOESM1 of Efficient production of secretory Streptomyces clavuligerus β-lactamase inhibitory protein (BLIP) in Pichia pastoris

, 2018
Additional file 1.
Law, Kin-Ho, Tsang, Man-Wah, Wong, Yuk-Ki, Tsang, Ming-San, Lau, Pui-Yee, Wong, Kwok-Yin, Ho, Kwok-Ping, Leung, Yun-Chung   +7 more
openaire   +1 more source

Detecting Antibiotic Resistance in Strains of Selected Gram‐Negative Bacterial Species Using Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
Raman spectroscopy successfully identified antibiotic‐resistant Gram‐negative strains. Resistant strains of four bacterial species were discriminated from sensitive ones with 99.1% accuracy using PLS regression. The method allows for rapid, label‐free detection of antibiotic resistance.
Fernanda Sant Ana de Siqueira e Oliveira, Adriano Moraes da Silva, Marcos Tadeu T. Pacheco, Landulfo Silveira Jr.   +3 more
wiley   +1 more source

Phenotypic Characterization and Antibiotic Resistance Patterns of Extended-Spectrum β-Lactamase- and AmpC β-Lactamase-Producing Gram-Negative Bacteria in a Referral Hospital, Saudi Arabia

Canadian Journal of Infectious Diseases and Medical Microbiology, 2019
Background. Emergence of pathogenic bacteria carrying β-lactamase-resistant determinants has become a major health problem in the hospital setting. The study aimed to determine antibiotic-resistant patterns and frequency of extended-spectrum β-lactamase-
Mutasim E. Ibrahim, Mohammed Abbas, Abdullah M. Al-Shahrai, Bahaeldin K. Elamin   +3 more
doaj   +1 more source

Responsive nitric oxide‐releasing antibacterial materials for biofilm‐associated infections: Mechanisms, design strategies, and applications

Responsive Materials, EarlyView.
This review summarizes the recent progress in responsive NO‐releasing materials and their applications in biofilm‐associated infectious diseases. The design principles and response mechanisms are given to provide inspiration toward the future development of multi‐responsive NO‐releasing materials.
Wenyue Sun, Meiqi Li, Di Nan, Jiaqi Zhao, Yu Chen, Yao Gao, Shichen Zhang, Kirsten L. Van Landuyt, Manlin Qi   +8 more
wiley   +1 more source

Structure-guided drug repurposing identifies aristospan as a potential inhibitor of β-lactamase: insights from virtual screening and molecular dynamics simulations

Frontiers in Pharmacology
The rise of β-Lactamase mediated antibiotic resistance is a major concern for public health; hence, there is an urgent need to find new treatment approaches.
Moyad Shahwan, Moyad Shahwan, Mohd Shahnawaz Khan, Azna Zuberi, Nojood Altwaijry, Anas Shamsi   +5 more
doaj   +1 more source

Human metallo-β-lactamase enzymes degrade penicillin

Scientific Reports, 2019
Nonribosomal peptides are assemblages, including antibiotics, of canonical amino acids and other molecules. β-lactam antibiotics act on bacterial cell walls and can be cleaved by β-lactamases.
Seydina M. Diene, Lucile Pinault, Vivek Keshri, Nicholas Armstrong, Saber Khelaifia, Eric Chabrière, Gustavo Caetano-Anolles, Philippe Colson, Bernard La Scola, Jean-Marc Rolain, Pierre Pontarotti, Didier Raoult   +11 more
doaj   +1 more source