The aim of this study was to explore the plasmid characteristics of eight clinical Enterobacteriaceae strains containing extended broad spectrum beta-lactamases and plasmid-mediated quinolone resistance. Plasmids were transferred by conjugation or transformation and resistance determinants were investigated by PCR. We showed that at least one plasmid harbouring qnrB or qnrS determinant was tran...

the development of the eco friendly procedures makes nanoparticles as the rapidly growing field of nanotechnology. amongst, the silver nanoparticles have become prominent in the field of medicine to their peculiar antimicrobial properties. in the present study we suggest an eco friendly procedure of extracellular synthesis of silver nanoparticles with an average sizes of 5-50nm using an actinom...

OBJECTIVE Quinolone resistance is usually caused by various chromosomal mutations, but has been more recently associated with plasmids which carry the qnr determinant. The aim of this study is to investigate the prevalence of qnr genes in clinical isolates of Enterobacteriaceae in Jamaica. METHODS A total of 255 non-duplicate fluoroquinolone-resistant Enterobacteriaceae clinical isolates, com...

WCK 771 demonstrated MIC(50) and MIC(90)s of 0.03 and 1 microg/ml, respectively, against 297 recent U.S. community-acquired and hospital strains of Staphylococcus aureus, irrespective of quinolone or glycopeptide resistance. Against quinolone-resistant strains, MIC(90)s of WCK 771 and moxifloxacin were 1 and 16 microg/ml, respectively.

The genus Verbascum L. belongs to the family Scrophulariaceae and includes plants that have been used widely in traditional medicine for a long time. Methanolic extracts of three Verbascum species from flora of Iran were in vitro screened for their possible antioxidant activities by three complementary test systems, namely DPPH free radical-scavenging, metal chelating activity and β-carotene/li...