background coagulase-negative staphylococci (cons) are opportunistic pathogens. methicillin resistance is common in cons and may play an important role as reservoir of staphylococcal cassette chromosome mec (sccmec) for staphylococcus aureus. objectives the aim of this study was to determine molecular characteristics of nasal carriage of methicillin-resistant coagulase negative staphylococci am...

Lysostaphin sensitivity was evaluated as a rapid screening test to differentiate Staphylococcus aureus from other species of staphylococci and micrococci. A total of 168 strains of staphylococci, 108 of which were S. aureus, were cultured overnight in brain infusion broth. Gram stains were peformed before and after a 1:10 dilution of the culture was exposed to 2 micrograms of lysostaphin per ml...

background and objectives: methicillin resistance staphylococcus aureus (mrsa) and coagulase negative staphylococci (mrcons) have recognized as the major cause of nosocomial infections that threat the burn patient’s life. the aims of this study were to determine the frequency of mrsa and mrcons and their antibiotic resistance patterns among burn patients in a burn center in ahvaz, iran. materia...

The relative frequency of 10 determinants of resistance to macrolides, lincosamides, and streptogramins was investigated by PCR in a series of 294 macrolide-, lincosamide-, and/or streptogramin-resistant clinical isolates of Staphylococcus aureus and coagulase-negative staphylococci isolated in 1995 from 32 French hospitals. Resistance was mainly due to the presence of ermA or ermC genes, which...

Vancomycin resistance has been reported in clinical isolates of both coagulase-negative staphylococci and Staphylococcus aureus. The emerging threat of widespread vancomycin resistance poses a serious public health concern given the fact that vancomycin has long been the preferred treatment of antibiotic-resistant gram-positive organisms. Though major efforts are now being focused on improving ...

BACKGROUND Staphylococci release a large number of enzymes. Some of these, such as coagulase, beta- lactamase, hemolysins and biofilms are considered indices of pathogenicity. OBJECTIVES The aim of the current study was based on the isolation and identification of Staphylococcus aureus and coagulase negative Staphylococci (CNS) strains from various skin lesions and examining their biofilms, b...

Fluorescence in situ hybridization was used for the direct identification of staphylococci in blood cultures collected at a Portuguese hospital where staphylococci account for up to 35% of clinically relevant blood cultures. The assay was able to detect the presence/absence of staphylococci and distinguish Staphylococcus aureus from coagulase-negative staphylococci in 4.5 h.

OBJECTIVES Staphylococcus spp. are postulated to play a role in peri-implantitis. This study aimed to develop a "submucosal" in vitro biofilm model, by integrating two staphylococci into its composition. MATERIALS AND METHODS The standard "subgingival" biofilm contained Actinomyces oris, Fusobacterium nucleatum, Streptococcus oralis, Veillonella dispar, Campylobacter rectus, Prevotella interm...

BACKGROUND Bacteria are the major contributor of ocular infections worldwide. Ocular infections, if left untreated, can damage the structures of the eye with possible blindness and visual impairments. This work was aimed to review the bacterial profile of ocular infections. METHODS Literature search was made in different electronic databases; the review was systematically made to get concrete...

chemical precipitation method was used in order to synthesize cdse:ag quantum dots (2-3 nm). their physical properties and characteristics were assessed by x-ray diffraction, ultra violet-visible spectrophotometer and tem (transmission electron microscope) and it was shown that the obtained cdse:ag quantum dots are cubic with high-quality. antibacterial effects of cdse:ag nanoparticles against ...