The erm(41) gene confers inducible macrolide resistance in Mycobacterium abscessus subsp. abscessus, calling into question the usefulness of macrolides for treating M. abscessus subsp. abscessus infections. With an extended incubation (14 days), isolates with MICs of ≥8 μg/ml are considered macrolide resistant by current CLSI guidelines. Our goals were to determine the incidence of macrolide su...

OBJECTIVES Increasing evidence indicates that ezrin/radixin/moesin (ERM) proteins may play a critical role in cell proliferation. This study examined the role of ERM proteins in proliferation of fibroblast-like synoviocytes (FLS) from patients with RA. METHODS Synovial tissues (STs) were obtained from 18 RA and 6 OA patients. The expression of ERM and its phosphorylated proteins in cultured F...

In staphylococci, inducible macrolide-lincosamide-streptogramin B (MLS(B)) resistance is conferred by the erm(C) or erm(A) gene. This phenotype is characterized by the erythromycin-clindamycin "D-zone" test. Although clindamycin appears active in vitro, exposure of MLS(B)-inducible Staphylococcus aureus to this antibiotic may result in the selection of clindamycin-resistant mutants, either in v...

.............................................................................................................. 9 REVIEW OF THE LITERATURE............................................................................. 11 1. THE CELL DIVISION CYCLE......................................................................................................11 2. CANCER GENES....................................

Sir, Bovine respiratory disease (BRD) is one of the economically most important diseases in animal production, with global losses of the feedlot industry due to BRD being estimated to be over US$ 3 billion per year. Antimicrobial agents, particularly macrolides, are commonly used to combat bacteria involved in BRD, such as Mannheimia haemolytica, Pasteurella multocida and Histophilus somni. Aft...

Fifty-six Staphylococcus aureus isolates recovered between 1998 and 2003 from 31 rabbit farms with and without problems of chronic staphylococcosis, were screened for resistance to enrofloxacin, erythromycin, gentamicin, lincomycin, neomycin, penicillin and tetracyclines using the agar dilution test. For penicillin, a disk diffusion test was also performed. The detection of tetP(B), tet(K), tet...

OBJECTIVES Fifty-four methicillin-resistant Staphylococcus aureus (MRSA) ST398 isolates from unrelated diseased swine collected all over Germany were comparatively investigated for their antimicrobial resistance and virulence properties, and for their genomic relatedness. METHODS MICs of 30 antimicrobial agents were determined by broth microdilution. Resistance and virulence genes were detect...

The present study collected bacterial samples from water and bottom sediments from fish farms located in a nature reserve area in Poland with no recorded history of antibiotic use. The aim of the study was to determine the initial states of tetracycline, streptomycin, and erythromycin resistance before a potential increase of intensive aquaculture and application of antimicrobial agents in that...

The in vitro antibacterial activity of solithromycin (CEM-101) against macrolide-resistant isolates (n=62) of Streptococcus agalactiae (group B streptococcus [GBS]) was determined. Phenotypic characterization of macrolide-resistant strains was performed by double-disc diffusion testing. A multiplex PCR was used to identify the erm(B), erm(TR), and mef(A/E) genes, capsular genotypes, and alpha-l...

During the last two decades, growing rates of erythromycin resistance have been reported in many countries among both Streptococcus pyogenes (29) and Streptococcus pneumoniae (63) clinical isolates. This trend was partly due to a further spread of the conventional methylase-mediated target site modification mechanism of resistance, but to an even greater extent it reflected the emergence of an ...