Evidence for the evolutionary steps leading to mecA-mediated ß-lactam resistance in staphylococci [PDF]
The epidemiologically most important mechanism of antibiotic resistance in Staphylococcus aureus is associated with mecA–an acquired gene encoding an extra penicillin-binding protein (PBP2a) with low affinity to virtually all β-lactams.
Bouchami, O +13 more
core +6 more sources
Methicillin-resistant Staphylococcus lugdunensis carrying SCCmec type V misidentified as MRSA [PDF]
Staphylococcus lugdunensis is a rare cause of severe infections and clinical manifestations are similar to those related to S. aureus infection. We describe a hospital-acquired bacteremia due to methicillin-resistant Staphylococcus lugdunensis, misidentified as methicillin-resistant S. aureus. The oxacillin MIC was 16 µg/mL and the mecA gene and SCCmec
Eliezer Menezes Pereira +3 more
openaire +7 more sources
Novel rearrangements in the staphylococcal cassette chromosome mec type V elements of Indian ST772 and ST672 methicillin resistant Staphylococcus aureus strains. [PDF]
Staphylococcus aureus is a commensal gram positive bacteria which causes severe and non severe infections in humans and livestock. In India, ST772 is a dominant and ST672 is an emerging clone of Staphylococcus aureus.
Jayanth Balakuntla +2 more
doaj +1 more source
Prevalence of qacA/B genes and mupirocin resistance among methicillin-resistant Staphylococcus aureus (MRSA) isolates in the setting of chlorhexidine bathing without mupirocin [PDF]
OBJECTIVE: We aimed to determine the frequency of qacA/B chlorhexidine tolerance genes and high-level mupirocin resistance among MRSA isolates before and after the introduction of a chlorhexidine (CHG) daily bathing intervention in a surgical intensive ...
Bommarito, Kerry M +7 more
core +2 more sources
A novel DNA primase-helicase pair encoded by SCCmec elements
Mobile genetic elements (MGEs) are a rich source of new enzymes, and conversely, understanding the activities of MGE-encoded proteins can elucidate MGE function. Here, we biochemically characterize three proteins encoded by a conserved operon carried by the Staphylococcal Cassette Chromosome (SCC mec
Aleksandra Bebel +3 more
openaire +5 more sources
Background: The aim of this study was to investigate the prevalence and characteristics of SCCmec genotypes and drug resistance of methicillin-resistant Staphylococcus aureus (MRSA) isolated from intensive care units (ICU) at obstetrics & gynaecology ...
Zhonghua Huo +4 more
doaj +1 more source
Genomic insights into the rapid emergence and evolution of MDR in Staphylococcus pseudintermedius. [PDF]
OBJECTIVES: MDR methicillin-resistant Staphylococcus pseudintermedius (MRSP) strains have emerged rapidly as major canine pathogens and present serious treatment issues and concerns to public health due to their, albeit low, zoonotic potential. A further
A. J. McCarthy +31 more
core +3 more sources
Background: Coagulase-negative staphylococci, which belong to the normal microbiota of the skin and mucous membranes, are opportunistic pathogens. sasX, a newly described protein, is thought to play an important role in nasal colonization and methicillin-
Alper Tekeli +2 more
doaj +1 more source
Methicillin-resistant Staphylococcus aureus (MRSA) ST398 associated with clinical and subclinical mastitis in Belgian cows [PDF]
Methicillin-resistant Staphylococcus aureus (MRSA) is infrequently reported in mastitis. Yet, as in many other countries, the prevalence of methicillin resistance among S. aureus from mastitis is currently unknown in Belgium.
Adriaensen, Connie +5 more
core +1 more source
Detecting the frequency of aminoglycoside modifying enzyme encoding genes among clinical isolates of methicillin-resistant Staphylococcus aureus [PDF]
Introduction: Methicillin-resistant Staphylococcus aureus (MRSA) plays an important role in causing many serious nosocomial infections. In this study, the antimicrobial susceptibility and the frequency of aminoglycoside modifying enzyme encoding genes ...
Zahra Shokravi +2 more
doaj +1 more source

