نتایج جستجو برای: clinical isolates

تعداد نتایج: 1225545  

Journal: :iranian journal of science and technology (sciences) 2012
s. rahiman

plants are potent biochemists; biologically active compounds present in the medicinal plants have always been ofgreat interest to scientists working in this field. thus, the aim of the current study was to screen the antimicrobial activity of acacia nilotica, ziziphus mauritiana, bauhinia variegate and lantana camara against some selected clinical isolated strains. although previous studies hav...

2009
JENNIFER A. KITCHELL

Global-scale data on the Oligocene to Recent planktic foraminifers and coccoliths from the tropical Pacific and Atlantic Oceans are employed for quantitative testing of alternative models (Red Queen and Stationary Hypotheses) of the relationship between speciation rates, extinction rates, taxonomic diversity, abiotic events, and history of the paleosystem. The results demonstrate that although ...

Hadi Lotfi Shahla Mansouri

Background & Aims: Pseudomonas aeruoginosa is an opportunistic pathogen and an important cause of nosocomial infections. Different factors are involved in the pathogenicity of this bacterium. This study was performed to compare some factors associated with the virulence of clinical and environmental isolates of P. aeruoginosa. Methods: The present study was performed on 25 environmental isolate...

Background and Objective: Efflux pump inhibitors (EPIs) can block efflux pumps and are helpful in potentiating the activity of aminoglycosides against Pseudomonas aeruginosa. The present study compared the effects of phenylalanine-arginine beta naphthylamide (PAβN) and curcumin on aminoglycoside minimum inhibitory concentration (MIC) on Pseudomonas aeruginosa clinical isolates. Materials and M...

Akbar Tavakoli, Bita Bakhshi, Farahtaj Navabakbar, Fereshteh Shahcheraghi, Mansoor Salehi, Mohammad Reza Pourshafie, Seyed Mohsen Zahraei, Ziba Faradjzadegan,

Background: The virulence of a pathogenic Vibrio cholerae is dependent on a discrete set of genetic determinants. In this study, we determined the distribution of virulence determinants among the clinical and environmental isolates of V. cholerae. Methods: The antibiotic resistance profiles of the isolates were determined using standard disk diffusion assay. PCR assay was performed to analyze t...

Background and Objectives: Enterococci as a part of the normal flora of human gastrointestinal tracts can cause infections in children and adults who have a weaker immune system. The aim of this study was to determine and compare vancomycin, gentamicin, erythromycin and tetracycline resistance in enterococci isolated from  Tabriz Children’s Hospital. Materials and Methods: In this l...

Journal: :iranian biomedical journal 0
بیتا بخشی bita bakhshi محمدرضا پورشفیع mohammad reza pourshafie فرح تاج نواب اکبر farahtaj navabakbar اکبر توکلی akbar tavakoli فرشته شاهچراغی fereshteh shahcheraghi منصور صالحی mansoor salehi زیبا فرج زادگان

background: the virulence of a pathogenic vibrio cholerae is dependent on a discrete set of genetic determinants. in this study, we determined the distribution of virulence determinants among the clinical and environmental isolates of v. cholerae. methods: the antibiotic resistance profiles of the isolates were determined using standard disk diffusion assay. pcr assay was performed to analyze t...

سلطان دلال, محمدمهدی, شیرازی, محمدحسن, عبدالصمدی, زهرا, مردانی, نادیا, معماریانی, مجتبی, پورمند, محمدرضا,

Background: Clindamycin is a suitable antibiotic for treatment of skin and soft tissue infections. Moreover, it can suppress toxin production in many pathogenic bacteria such as S. aureus. There are two mechanisms of resistance in this antibiotic. Constitutive resistance can be detected by standard disk diffusion method but in the case of inducible resistance, D-test should be carried out. The ...

صابرنیا , ندا , حسینی‌جزنی, نیما, قره‌باغی, ناصر ,

  Background and Aims : Oxacillin-resistant Staphylococcus aureus is a major pathogen causing serious infections and treatment of such infections is very difficult. Vancomycin is the last line of treatment for resistant S. aureus. The aim of this study was investigation of epidemiology of vancomycin and oxacillin resistant Staphylococcus aureus clinical isolates in Urmia   Materials and Methods...

Background and purpose: The aminoglycoside modifying enzymes (AMEs) and class 1 integrons in clinical isolates of pseudomonas aeruginosa are the major factors leading to rapid spread of antibiotic resistance. The aim of the present study was to investigate the frequency of aac(6)-IIa, ant(2'')-Ia, and class 1 integrons in clinical isolates of pseudomonas aeruginosa. Materials and methods: For ...

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