Results 51 to 60 of about 29,030 (165)

Iran's Escherichia coli AMR Landscape (2010–2025): A One Health Systematic Review and Meta‐Analysis

open access: yesMicrobiologyOpen, Volume 15, Issue 5, October 2026.
This One Health systematic review and meta‐analysis of 368 studies (2010–2025) reveals that 47.2% of E. coli isolates in Iran are ESBL‐producers, with alarming resistance to penicillins, cephalosporins, and fluoroquinolones. Critically, resistance to last‐resort antibiotics—colistin and ertapenem—is significantly increasing over time.
Arezoo Dehghan   +9 more
wiley   +1 more source

Conserved Asp233–Asp246 hydrogen bond modulates active site dynamics in class A β‐lactamases

open access: yesProtein Science, Volume 35, Issue 10, October 2026.
Abstract Rigid enzymes catalyze chemical reactions by stabilizing the transition state through a specific conformation. Catalytic residues are precisely positioned, and enzyme dynamics are kept to a minimum. It is thought that conserved residues around the active site (second‐shell residues) play a crucial role in positioning catalytic residues. Asp233
Cristina V. Lopez‐Gallego   +3 more
wiley   +1 more source

Antibacterial Activity of the Allium sativum Crude Extract against Methicillin-resistant Staphylococcus aureus

open access: yesJournal of Pure and Applied Microbiology
Garlic contains various components, such as allicin, ajoenes, and allyl sulfides, which are organosulfur compounds. It exhibits antimicrobial activities in all forms, including garlic powder, garlic extract, and garlic oil.
M. Indira   +3 more
doaj   +1 more source

Iterative Genome Engineering Platform Enables Efficient Sucrose Biosynthesis From CO2 in Photosynthetic Synechococcus elongatus UTEX 2973

open access: yesPlant Biotechnology Journal, Volume 24, Issue 10, Page 5284-5299, October 2026.
ABSTRACT The single crossover occurring via homologous recombination is a common phenomenon existing among microbes like Escherichia coli, Bacillus subtilis, Vibrio natriegens, Gluconobacter oxydans and most cyanobacteria species, threatening the stability of engineered strains and challenging iterative genetic engineering. Among them, we take the fast‐
Shubin Li   +5 more
wiley   +1 more source

Penicillin kills chlamydia following the fusion of bacteria with Lysosomes and prevents genital inflammatory lesions in C. muridarum-infected mice [PDF]

open access: yes, 2013
The obligate intracellular bacterium Chlamydia exists as two distinct forms. Elementary bodies (EBs) are infectious and extra-cellular, whereas reticulate bodies (RBs) replicate within a specialized intracellular compartment termed an ‘inclusion ...
Le Gall, SM   +41 more
core   +2 more sources

Comparative analysis of phenotypic and genotypic detection of methicillin resistance among Staphylococcus aureus

open access: yesIndian Journal of Pathology and Microbiology, 2016
Aims: Staphylococcus aureus is a common pathogen causing a wide range of infections ranging from mild skin and soft tissue infections to severe, life-threatening infections.
Tulin Demir, Nilay Coplu, Berrin Esen
doaj   +1 more source

Screening Equine Skin and Mucous Membranes for Carriage of Coagulase‐Positive Staphylococci

open access: yesVeterinary Dermatology, Volume 37, Issue 5, Page 681-687, October 2026.
ABSTRACT Background Commensal populations of coagulase‐positive Staphylococcus spp. (CoPS) in healthy horses are not well‐defined. Objective To determine the point prevalence, anatomical distribution, antimicrobial susceptibility and genomic characteristics of CoPS in healthy horses.
Christina M. Dierkes   +6 more
wiley   +1 more source

Evaluation of the accuracy of various phenotypic tests to detect oxacillin resistance in coagulase-negative staphylococci

open access: yesBrazilian Journal of Infectious Diseases
In this study, we determined the accuracy of phenotypic tests (cefoxitin agar dilution, 30µg-cefoxitin and 1µg-oxacillin disks) to detect the oxacillin resistance/mecA gene among coagulase-negative staphylococci (CoNS) isolates.
Leandro Reus Rodrigues Perez   +1 more
doaj   +1 more source

Conformational Snapshots of CydDC in a Native Lipid Bilayer Coupling Heme Transport to Antibiotic Resistance

open access: yesAdvanced Science, Volume 13, Issue 50, 7 September 2026.
Phylogenetic and biochemical analyses of the heme transporter CydDC reveal its functional conservation throughout bacterial evolution and demonstrate its unique asymmetric allosteric mechanism. Furthermore, impairment of CydDC function directly affects bacterial antibiotic resistance and likely compromises antibiotic efficacy through drug efflux.
Lili Yang   +19 more
wiley   +1 more source

Ceftaroline pharmacokinetics/pharmacodynamics in the hollow-fibre model of Mycobacterium abscessus lung disease

open access: yesIJTLD Open
BACKGROUND: Guideline-based therapy (GBT) of Mycobacterium abscessus (MAB) lung disease (LD) achieves a sputum culture conversion rate in ∼35% of patients. The β-lactam antibiotics, imipenem and cefoxitin, are the cornerstone of GBT.
B.E. Ferro, S. Srivastava, T. Gumbo
doaj   +1 more source

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