Results 71 to 80 of about 9,732 (155)

Bismuth antimicrobial drugs serve as broad-spectrum metallo-β-lactamase inhibitors

Nature Communications, 2018
Metallo-β-lactamases (MBL) are zinc containing enzymes that cause resistance to β-lactam antibiotics. Here the authors show that the anti-Helicobacter pylori drug colloidal bismuth subcitrate inhibits MBLs by displacing the zinc ions with Bi(III), which ...
Runming Wang, Tsz-Pui Lai, Peng Gao, Hongmin Zhang, Pak-Leung Ho, Patrick Chiu-Yat Woo, Guixing Ma, Richard Yi-Tsun Kao, Hongyan Li, Hongzhe Sun   +9 more
doaj   +1 more source

Zwitterionic Penicillin‐Derived Sulfone Inhibitor for Combating β‐Lactamase‐Mediated Antibiotic Resistance

ChemMedChem, Volume 21, Issue 9, 14 May 2026.
Combining enhanced permeability strategies with (2‐pyridyl)methylene substitution in the sulbactam scaffold led to a novel β‐lactamase inhibitor to combat β‐lactamase‐mediated resistance to β‐lactam antibiotics. The studies presented highlight the potential of compound 3 as a next‐generation β‐lactamase inhibitor for combating infections caused by ...
Diana Rodríguez, Emilio Lence, Juan C. Vázquez‐Ucha, Alejandro Beceiro, Concepción González‐Bello   +4 more
wiley   +1 more source

A DNA aptamer reveals an allosteric site for inhibition in metallo-β-lactamases.

PLoS ONE, 2019
The hydrolysis of β-lactam antibiotics by β-lactamase enzymes is the most prominent antibiotic resistance mechanism for many pathogenic bacteria. Out of this broad class of enzymes, metallo-β-lactamases are of special clinical interest because of their ...
Nazmul H Khan, Anthony A Bui, Yang Xiao, R Bryan Sutton, Robert W Shaw, Benjamin J Wylie, Michael P Latham   +6 more
doaj   +1 more source

DOTA‐grafted Cationic Polymers Behaving as Powerful Macromolecular Resistance‐reversal Agents (MRRAs) Combating Against New Delhi Metallo‐β‐lactamase (NDM)‐producing Bacteria

Advanced Science, Volume 13, Issue 27, 13 May 2026.
Two macromolecular resistance‐reversal agents (MRRAs)—linear (MRRAL) and nanostructured (MRRAN) polymers were fabricated by integrating DOTA motifs into tunable polycationic scaffolds. MRRAs exhibit superior antibacterial potency once combined with meropenem (MEM) through (i) bacterial membrane disruption via localized cationic charge and ...
Ruixue Wang, Jian Zhang, Yun li, Liping Qiao, Zhuorui Dong, Dandan Cui, Peirong Bai, Liping Li, Bing Cao, Ruiping Zhang   +9 more
wiley   +1 more source

Phenotypic and Genotypic Study of Antibiotic Resistance blaPER‐1, blaVEB, and blaSHV‐1 Genes in Clinical Isolates of Pseudomonas aeruginosa

Health Science Reports, Volume 9, Issue 5, May 2026.
ABSTRACT Background and Aims Pseudomonas aeruginosa is a non‐fermentative, opportunistic Gram‐negative bacterium that causes 10%–15% of nosocomial and burn wound infections worldwide. This bacterium is resistant to various antibiotics through multiple mechanisms, including acquisition of resistance genes.
Milad Gholampour Matin, Reza Shapouri, Mohammadreza Nahaei, Mojtaba Mohammadi Roknabadi, Rasoul Shokri   +4 more
wiley   +1 more source

Evaluation of FilmArray Multiplex PCR Test Results in Bloodstream Infections in Oncological Patients

Journal of Clinical Laboratory Analysis, Volume 40, Issue 9, May 2026.
In this study conducted at an oncology hospital, BCID2 panel results for the rapid identification of microorganisms and resistance genes in positive blood culture samples were compared with conventional culture methods. The BCID2 panel provided faster results and showed a high correlation with traditional methods.
İpek Mumcuoğlu, Sevgi Şahin, Esra Tavukcu, Neşe İnan, Ayşe Semra Güreser, Serap Süzük Yıldız, Tuba Dal   +6 more
wiley   +1 more source

"Golden Era of Antibiotics" - Coming to an end !!!

SRM Journal of Research in Dental Sciences, 2012
Resistance to antibiotics is increasing at an alarming rate. This is due to superbugs, producing heterogenous groups of enzymes, β-lactamases which inactivate β-lactam antibiotics and others as well.
V Vinodhini, T S Subashini, K S Sridevi Sangeetha, R Shivakumar, Nafeesa Iqbal   +4 more
doaj  

Resistance to ceftazidime–avibactam and other new β-lactams in Pseudomonas aeruginosa clinical isolates: a multi-center surveillance study

Microbiology Spectrum
New β-lactam–β-lactamase inhibitor combinations represent last-resort antibiotics to treat infections caused by multidrug-resistant Pseudomonas aeruginosa.
Felice Valzano, Gianfranco La Bella, Teresa Lopizzo, Anna Curci, Laura Lupo, Elisabetta Morelli, Adriana Mosca, Marianna Marangi, Raffaela Melfitano, Tiziana Rollo, Rosella De Nittis, Fabio Arena   +11 more
doaj   +1 more source

Genomic Insights Into Carbapenem‐Resistant Klebsiella pneumoniae in Pediatric Bloodstream Infections in Zhejiang, China (2019–2024)

Journal of Clinical Laboratory Analysis, Volume 40, Issue 10, May 2026.
The primary mechanism of carbapenem resistance identified in pediatric CRKP‐BSI strains was the production of Class B metalloenzymes. We report, for the first time, an outbreak of bloodstream infections in a neonatal ward caused by the dissemination of NDM‐1‐producing ST25 K. pneumoniae.
Mingming Zhou, Xiucai Zhang, Zhenjie Chen, Chao Fang, Shixing Liu, Jintao Xia, Yining Zhao, Chenmei Zhang, Hongqiang Shen   +8 more
wiley   +1 more source

The mechanism of NDM-1-catalyzed carbapenem hydrolysis is distinct from that of penicillin or cephalosporin hydrolysis

Nature Communications, 2017
New Delhi metallo-β-lactamases (NDMs) hydrolyze almost all β-lactam antibiotics and pose a major public health threat. Here, the authors study the mechanism of NDM-1 catalyzed carbapenem hydrolysis and present the crystal structures of the enzyme ...
Han Feng, Xuehui Liu, Sheng Wang, Joy Fleming, Da-Cheng Wang, Wei Liu   +5 more
doaj   +1 more source