نتایج جستجو برای: resistant isolates

تعداد نتایج: 259892  

Journal: Current Medical Mycology 2017

Background and Purpose: The frequency of opportunistic fungal infections in immunocompromised patients, especially by Candida species, has sharply increased in the last few decades. The objective of this study was to analyse the ergosterol content and gene expression profiling of clinical isolates of fluconazole resistant Candida albicans. Materials and Methods: Sixty clinical samples were ide...

2012
Ozgul Kisa Gulnur Tarhan Selami Gunal Ali Albay Riza Durmaz Zeynep Saribas Thierry Zozio Alpaslan Alp Ismail Ceyhan Ahmet Tombak Nalin Rastogi

BACKGROUND Investigation of genetic heterogeneity and spoligotype-defined lineages of drug-resistant Mycobacterium tuberculosis clinical isolates collected during a three-year period in two university hospitals and National Tuberculosis Reference and Research Laboratory in Ankara, Turkey. METHODS AND FINDINGS A total of 95 drug-resistant M. tuberculosis isolates collected from three different...

ده باشی, ساناز, زینی, بهروز, طهماسبی, حامد, عربستانی, محمدرضا,

Background and Objective: Quorum sensing (QS) phenomenon, promoters involved in this pathway and the effect of these promoters on the expression of some structural genes, such as agrA and PII, could reveal the proper activity and gene expression of antibiotic resistance in S. aureus. The aim of this study was defining the relationship between promoter-dependent Quorum Sensing induced genes and ...

Introduction: Acinetobacter baumannii is a non-fermentative gram-negative coccobacill that is prevalent in intensive care units. Carbapenem resistant A.baumannii isolates have been reported worldwide. Oxasillinase beta-lactamase enzymes are involved in bacterial resistance to carbapenem. This study aimed to determine the prevalence of blaOXA-23 and blaOXA-24 genes in A. baumannii isolated from ...

Journal: :Antimicrobial agents and chemotherapy 2003
James A Karlowsky Mark E Jones Deborah C Draghi Daniel F Sahm

Ceftriaxone and cefotaxime are extended-spectrum cephalosporins previously demonstrated to possess very similar in vitro activities against Streptococcus pneumoniae. Anecdotal reports of isolates with divergent in vitro susceptibilities to ceftriaxone and cefotaxime have been published. To determine the prevalence of pneumococcal isolates with divergent ceftriaxone and cefotaxime susceptibiliti...

The macrolides appear to have considerable effects for treatment of bovine mastitis because of excellent diffusion into the mammary gland, long half-life, low protein binding, high intracellular concentration and lipid solubility. Acquired resistance to macrolides in Staphylococcus aureus is primarily related to target-site modification through acquisition of an erm gene. In t...

Background and objective: The treatment of bacterial infections especially of the family Staphylococcaceae is a significant health burden that has led to economic losses, and high morbidity and mortality rates globally. This study aimed at the isolation and characterization of coagulase-positive, methicillin, and multi-drug-resistant Staphylococci isolated from wounds of patients. Methods: Fo...

Journal: :jundishapur journal of microbiology 0
anthony ayodeji adegoke applied and environmental microbiology research group (aemreg), department of biochemistry and microbiology, university of fort hare, alice, south africa; applied and environmental microbiology research group (aemreg), department of biochemistry and microbiology, university of fort hare, alice, south africa. tel: +27-732387411 anthony i. okoh applied and environmental microbiology research group (aemreg), department of biochemistry and microbiology, university of fort hare, alice, south africa

background assessment of resistance genes is imperative, as they become disseminated to bacterial flora in plants and to the indigenous bacterial community, and thus ultimately contributes to the clinical problems of antibiotic resistant pathogens. objectives the research was to assess the antibiotic characteristics and incidence of sul3 genes of stenotrophomonas maltophilia isolates recovered ...

Journal: :Global journal of health science 2016
Roya Ghasemian Mohammad Ahanjan Ebrahim Fatehi Mehran Shokri

BACKGROUND & PURPOSE Antibiotic resistance rate is increasing in Acinetobacter species, especially in Acinetobacter baumannii, as the most important pathogen of hospital and ICU . This research aimed to evaluate antibiotic resistant rate of Acinetobacter spp. isolated from patients admitted to ICUs in educational hospitals affiliated with Mazandaran University of Medical Sciences. METHODS In ...

Journal: :iranian journal of microbiology 0
fereshteh eftekhar department of microbiology, faculty of biological sciences, shahid beheshti university, tehran, iran. ziaeldin naseh department of microbiology, faculty of biological sciences, shahid beheshti university, tehran, iran.

background and objectives: klebsiella pneumoniae is an opportunistic pathogen responsible for up to 10% of nosocomial infections. the emergence and spread of multidrug resistant k. pneumoniae , mostly due to the production of extended-spec- trum β-lactamases (esbl) and carbapenemases, is often responsible for antibiotic treatment failure of these infections. we compared the antibiotic resistanc...

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