Subinhibitory concentrations of antibiotics affect cell surface properties of Streptococcus sobrinus
نویسندگان
چکیده
منابع مشابه
Effect of subinhibitory concentrations of antibiotics on the adhesion of Streptococcus pyogenes to pharyngeal epithelial cells.
The hydrophobicity and charge of the cell surface of M protein-positive (M+) and the less virulent M protein-negative (M-) strains of type 12 Streptococcus pyogenes have been studied, respectively, by hydrophobic interaction chromatography and free zone electrophoresis. The M+ strain had a more hydrophobic and a more negatively charged surface than the M- strain. When the M+ strain was cultivat...
متن کاملEffect of subinhibitory concentrations of antibiotics on mutation frequency in Streptococcus pneumoniae.
OBJECTIVES To investigate the effect of subinhibitory concentrations of ciprofloxacin, streptomycin, trimethoprim, ampicillin and erythromycin on mutation frequency in Streptococcus pneumoniae. METHODS Frequency of mutation to rifampicin resistance was determined in three clinical isolates grown with or without antibiotic treatment. dinB was analysed using PCR and DNA sequence determination. ...
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BACKGROUND Urinary Tract Infections (UTIs) due to Escherichia coli is one of the most common diseases encountered in clinical practice. Most common recognised pathogenic factor in E.coli is adhesion. There is accumulating evidence that through subinhibitory concentrations (sub-MICs) of many antibiotics do not kill bacteria, they are able to interfere with some important aspects of bacterial cel...
متن کاملEffect of polyclonal and monoclonal antibodies on surface properties of Streptococcus sobrinus.
In this study, the effect of antibody adsorption on physicochemical properties of Streptococcus sobrinus was studied. Bacteria were preincubated with polyclonal antibodies or with OMVU10, a monoclonal antibody (MAb) reactive with S. sobrinus. The zeta potentials and the hydrophobicity as determined by microbial adhesion to hydrocarbons were measured in potassium phosphate buffer with a pH rangi...
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در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1995
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.177.5.1399-1401.1995