Results 1 to 10 of about 318,787 (256)

The effect of MurM and a branched cell wall structure on penicillin resistance in Streptococcus pneumoniae [PDF]

open access: yesJournal of Bacteriology
The aminoacyltransferase MurM is an important penicillin resistance determinant in Streptococcus pneumoniae. This enzyme attaches a serine or alanine to the side chain of lysine, the third residue of the pentapeptide of lipid II, resulting in branched ...
Ragnhild Sødal Gjennestad   +7 more
doaj   +2 more sources

Association between treatment failure in patients with early syphilis and penicillin resistance-related gene mutations of Treponema pallidum: Protocol for a multicentre nested case–control study [PDF]

open access: yesFrontiers in Medicine, 2023
BackgroundThe widespread occurrence of syphilis remains a global public health problem. Although penicillin has been recommended as the first-line therapy for syphilis for more than 70 years, treatment failure occurs in 10–20% of patients with early ...
Hong-Fei Mi   +5 more
doaj   +2 more sources

Penicillin Resistance of Nonvaccine Type Pneumococcus before and after PCV13 Introduction, United States [PDF]

open access: yesEmerging Infectious Diseases, 2017
Introduction of 13-valent pneumococcal conjugate vaccine in the United States was not associated with a significant change in prevalence of penicillin resistance in nonvaccine type serotypes because of the variable success of highly resistant serotypes ...
Cheryl P. Andam   +5 more
doaj   +2 more sources

Penicillin resistance in bovine Staphylococcus aureus: Genomic evaluation of the discrepancy between phenotypic and molecular test methods

open access: yesJournal of Dairy Science, 2023
: Staphylococcus aureus is a major pathogen in humans and animals. In cattle, it is one of the most important agents of mastitis, causing serious costs in the dairy industry.
I. Ivanovic   +6 more
doaj   +3 more sources

Analysis of Whole-Genome Sequences for the Prediction of Penicillin Resistance and β-Lactamase Activity in Bacillus anthracis [PDF]

open access: yesmSystems, 2018
Penicillin (PEN) is a low-cost option for anthrax treatment, but naturally occurring resistance has been reported. β-Lactamase expression (bla1, bla2) in Bacillus anthracis is regulated by a sigma factor (SigP) and its cognate anti-sigma factor (RsiP ...
A. S. Gargis   +11 more
doaj   +4 more sources

A four-year surveillance of β-lactam antibiotic resistance and MRSA in a tertiary hospital in Al-Kharj, Saudi Arabia [PDF]

open access: yesBMC Infectious Diseases
Background/objectives Methicillin-resistant Staphylococcus aureus (MRSA) is a major global pathogen and a critical public health concern. Understanding its epidemiology is essential for guiding effective treatment and infection control measures.
Amal Yahya, Alhassan Alrafaie
doaj   +2 more sources

Penicillin-nonsusceptible Streptococcus suis infections in humans: clinical characteristics and antimicrobial synergy testing [PDF]

open access: yesBMC Infectious Diseases
Background Antimicrobial resistance in Streptococcus suis represents an increasing global health concern, particularly in Thailand, where human and swine infections remain common and severe.
Wilawan Thipmontree   +5 more
doaj   +2 more sources

Penicillin dust exposure and penicillin resistance among pharmaceutical workers in Tehran, Iran [PDF]

open access: yesInternational Journal of Occupational and Environmental Health, 2016
Roksana Mirkazemi   +2 more
exaly   +2 more sources

Meningococcal Antibiotic Resistance: Molecular Characterization of Isolates from Patients with Invasive Meningococcal Disease (IMD) in Greece

open access: yesAntibiotics, 2023
For effective case management and chemoprophylaxis of Invasive Meningococcal Disease (IMD), prompt antibiotic treatment is required. N. meningitidis is usually susceptible to antibiotics, but reduced susceptibility to penicillin, ciprofloxacin, and ...
Ioanna Spiliopoulou   +3 more
doaj   +1 more source

Restricted Sequence Variation in Streptococcus pyogenes Penicillin Binding Proteins

open access: yesmSphere, 2020
A recent clinical report has linked Streptococcus pyogenes β-lactam antibiotic resistance to mutation in the penicillin binding protein (PBP) PBP2x. To determine whether this is an isolated case or reflects a broader prevalence of mutations that might ...
Andrew Hayes   +4 more
doaj   +1 more source

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