Results 21 to 30 of about 13,121 (177)
Evidence for the evolutionary steps leading to mecA-mediated β-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.
Joana Rolo +12 more
doaj +1 more source
Ceftaroline resistance in Staphylococcus pseudintermedius gene mecA carriers [PDF]
ABSTRACT: Infections caused by methicillin-resistant Staphylococcus aureus (MRSA) being a constant concern, ceftaroline fosamil has been recently approved as a new cephalosporin, active against MRSA, for use in humans; only rare cases of resistance have been reported till date.
Scherer, Carolina B. +4 more
openaire +4 more sources
Background. Staphylococcus aureus (S. aureus) causes different types of human infections and can develop resistance to many antibiotics. There is a scarcity of data on the mecA gene and multidrug-resistant (MDR) strain distribution of this organism in ...
Feleke Moges +8 more
doaj +1 more source
mecA Gene Is Widely Disseminated in Staphylococcus aureus Population [PDF]
ABSTRACT Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most important causes of hospital infections worldwide. High-level resistance to methicillin is caused by the mecA gene, which encodes an alternative penicillin-binding protein, PBP 2a. To determine the clonal
C L C, Wielders +4 more
openaire +2 more sources
Methicillin-resistance in Staphylococcus aureus is not affected by the overexpression in trans of the mecA gene repressor: a surprising observation. [PDF]
Methicillin-resistant Staphylococcus aureus (MRSA) is intrinsically cross-resistant to virtually all β-lactam antibiotics. The central determinant for the MRSA phenotype is the mecA gene, whose transcriptional control may be mediated by a repressor (mecI)
Duarte C Oliveira +1 more
doaj +1 more source
Vancomycin-induced deletion of the methicillin resistance gene mecA in Staphylococcus aureus [PDF]
To elucidate factors that contribute to the development of vancomycin resistance in methicillin-resistant Staphylococcus aureus (MRSA).Forty-nine MRSA isolates were subjected to passage selection with vancomycin to isolate mutants with reduced susceptibility to vancomycin.
Adhikari, Rajan P. +5 more
openaire +3 more sources
MRSA/MSSA causing infections: prevalence of mecA gene
Abstract Introduction Staphylococcus aureus is part of the human flora, present in the skin and mucous membranes but can become pathogenic, causing a wide spectrum of infections that were initially treated with penicillin. However, were observed some strains with resistance to this antibiotic and, therefore was developed a new antibiotic,
N Osório +5 more
openaire +1 more source
Identification of MRSA(methicillin resistant Staphylococcus aureus) by mecA gene
Staphylococcus aureus is a bacterium that may be found in the skin and upper respiratory system. Although S.aureus is a normal flora, it has evolved into an opportunistic pathogen that causes numerous infections that are difficult to cure due to the presence of virulence genes.
Marwa raad +2 more
openaire +2 more sources
Background: The emergence of Methicillin-resistant Staphylococcus aureus and its ability to confer cross-resistance to macrolide-lincosamide-streptogramin B has complicated the treatment against it.
Dudha Raj Malla Thakuri +7 more
doaj +1 more source
Background: Methicillin-resistant Staphylococcus aureus is a major cause of serious nosocomial infections and it is very important to have a reliable test to detect these bacteria.
Rafeef Y. Rasheed, Ahmed S. Abdulamir
doaj +4 more sources

