L-forms of S. epidermidis were induced at 35 degrees C with the use of an L-form medium with penicillin. The aim of this study was to evaluate the frequency of L-form induction and demonstrate whether the origin of the clinical strains affects the frequency of L-forms induction, as well as to study whether the time of action of the antibiotic has an influence on frequency of L-form induction.

Biofilm formation of Staphylococcus aureus and Staphylococcus epidermidis were determined by the production of protease and lipase. Inhibition of lipolytic and proteolytic activity will lead to control of virulence factors produced by S. aureus and S. epidermidis. Antibiofilm activity of isolated compound Vancomycin against S. aureus and S. epidermidis showed significant results. The effect of ...

The susceptibilities of 36 recent isolates of Staphylococcus aureus and 35 recent isolates of Staphylococcus epidermidis were determined against each of 65 antimicrobial agents and against two of them in combination. Rifampin was the most active of all the agents tested against both S. aureus and S. epidermidis. Among the penicillins, cloxacillin, dicloxacillin, and nafcillin were most active, ...

Bovine subclinical mastitis (BSM) is a serious economic concern to the dairy industry, and is difficult to control due to elusive clinical manifestations of the ailment. The disease with primarily of microbial aetiology is amenable to antibiotic therapy, but the outcome is uncertain due to involvement of a plethora of microorganisms, host-specificity of the pathogens, and incessant evolution of...

PURPOSE To quantify and compare the in vitro adherence of Staphylococcus epidermidis and Pseudomonas alcaligenes to different intraocular lenses (IOLs). METHODS Fourteen intraocular lenses were used in the experiment. Four of polymethylmethacrylate (PMMA), four of silicone, four of hydrogel and two of acrylic. Eight intraocular lenses were placed in eight test tubes containing 4 ml of Pseudom...

The dielectrophoretic collection spectra of antibiotic-sensitive and antibiotic-resistant strains of Staphylococcus epidermidis have been determined. These indicate that in the absence of antibiotic treatment there is a strong similarity between the dielectric properties of sensitive and resistant strains, and that there is a significant difference between the sensitive strains before and after...

background and objective: nowadays, incidence of antibiotic-resistance among pathogenic bacteria has increased due to indiscriminate use of antimicrobial drugs for treatment of diseases, especially urinary tract infections. medicinal plants are also of great importance as antibacterial agents. therefore, the aim of this study was to determine the antibacterial effect of ethanolic extract of net...

T.F. Moriarty et al. (eds.), Biomaterials Associated Infection: Immunological Aspects and Antimicrobial Strategies, DOI 10.1007/978-1-4614-1031-7_2, © Springer Science+Business Media New York 2013 Abstract Coagulase-negative staphylococci, mainly Staphylococcus epidermidis , are currently the most frequent cause of hospital acquired infections in the USA. Mostly, but not exclusively, S. epiderm...

BACKGROUND AND OBJECTIVES With due attention to the development of drug-resistant bacteria, discovering of new antibacterial compounds is needed. Algae produce numerous bioactive substances which may have pharmacological properties such as antibacterial activity. The objective of this investigation was to in vitro study of antibacterial activity of brown alga Sargassum oligocystum collected alo...

Aim: To evaluate the antibacterial activity of different leaf extracts of Moringa oleifera growing in Sudan. Methodology: The antibacterial activity of leaf extracts (Water, Butanol, Ethyl acetate and Chloroform) of Moringa oleifera were investigated in vitro using Agar-well diffusion method against eight different Gram positive and Gram negative bacteria. Results: Ethyl acetate extract recorde...