نتایج جستجو برای: esbls

تعداد نتایج: 1159  

2017
Marimuthu Ragavan Ramesh Kumar Narasingam Arunagirinathan Ramachandran Vignesh Pachamuthu Balakrishnan Suniti Solomon Solomon S. Sunil

| 2017 | 1 Centre for AIDS Research and Education (YRG CARE), South India. The Gram‐negative bacterial isolates were screened for ESBLs production using cefotaxime (30 μg) and ceftazidime (30 μg) alone and in combination with clavulanic acid (10 μg), for MBL production using imipenem (10 μg) alone and in combination with ethylenediaminetetraacetic acid (EDTA) (750 μg), and for AmpC production u...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده پزشکی 1393

از سال 1980 گروه های جدید آنتی بیوتیکی به نام اکسی ایمنیو سفالوسپورین ها که به فعالیت هیدرولیتیک بتالاکتامازها مقاوم بودند برای درمان عفونت های باکتری های گرم منفی مورد استفاده قرار گرفتند. در اوایل سال 1990 آنزیم بتالاکتاماز وسیع الطیف(esbls) تولید شده توسط باکتری های گرم منفی، نسبت به سفالوسپورین هایی مانند سفتازیدیم و سفوتاکسیم مقاومت نشان دادند که مقاومت نسبت به سفوتاکسیم بیش از سفتازیدیم ب...

Hamid Abtahi, Iraj Pakzad Mohammad Rahbar, Morovat Taherikalani, Neda Mansory Jamshidi Norkhoda sadeghifard Sohbhan Ghafourian,

Objective(s) Extensive use of quinolones has been associated with raising level of resistance. In the current, we focused on assessing the prevalence of Escherichia coli resistance to quinolones and frequency of qnrA, qnrB and qnrS in non ESBLs (extended spectrum beta-lactamases) and ESBLs producing E. coli with blaSHV and blaTEM. Materials and Methods One hundred and fifty E. coli isolates ...

Journal: :avicenna journal of clinical microbiology and infection 0
kobra salimian rizi department of bacteriology, faculty of medical sciences, tarbiat modares university, tehran, ir iran; department of bacteriology, faculty of medical sciences, tarbiat modares university, tehran, ir iran. tel: +98-9382657837, fax: +98-1288006544 shahin najar peerayeh department of bacteriology, faculty of medical sciences, tarbiat modares university, tehran, ir iran bita bakhshi department of bacteriology, faculty of medical sciences, tarbiat modares university, tehran, ir iran mohammad rahbar department of microbiology, iranian reference health laboratory, deputy of health, ministry of health and medical education, tehran, ir iran

conclusions it was the first report on the blactx-m-15 gene emergence in clinical enterobacter spp. in iran. the current study demonstrated the predominant presence of the gene encoding ctx-m-15 among esbl producing enterobacter spp. commonly with a large plasmid, in the setting. background enterobacter spp. is increasingly recognized as an important nosocomial pathogen and implicated in many e...

Journal: :Critical Care Research and Practice 2012

Journal: :Roumanian archives of microbiology and immunology 2012
Shahla Mansouri Davood Kalantar Parisa Asadollahi Morovat Taherikalani Mohammad Emaneini

Klebsiella pneumoniae is a major cause of nosocomial infections. Emergence of antibacterial resistance and production of beta-lactamases are responsible for the frequently observed empirical therapy failures. The aim of this study was to determine the presence and the prevalence of extended spectrum beta-lactamases (ESBLs) and AmpC beta-lactamases in clinical isolates of K. pneumoniae in Kerman...

Journal: :Enfermedades infecciosas y microbiologia clinica 2017
Inmaculada López-Hernández Noemí Alonso Marta Fernández-Martínez Laura Zamorano Alba Rivera Antonio Oliver M Carmen Conejo Luis Martínez-Martínez Ferrán Navarro Alvaro Pascual

INTRODUCTION Antimicrobial resistance in Enterobacteriaceae is increasing worldwide and is making treating infections caused by multidrug-resistant Enterobacteriaceae a challenge. The use of β-lactam agents is compromised by microorganisms harboring extended-spectrum β-lactamases (ESBLs) and other mechanisms of resistance. Avibactam is a non β-lactam agent that inhibits clinically relevant β-la...

Journal: :Antimicrobial agents and chemotherapy 2010
Alexandra O'Keefe Tabitha A Hutton Dieter M Schifferli Shelley C Rankin

One hundred fifty canine and feline Escherichia coli isolates associated with urinary tract infections were screened for the presence of extended-spectrum beta-lactamase (ESBL) genes. Out of 60 isolates suspected to be ESBL positive based on antimicrobial susceptibility testing, 11 ESBLs were identified, including one SHV-12 gene, one CTX-M-14 gene, and nine CTX-M-15 genes. This study provides ...

زمینه و اهداف: اشریشیا کلی تولید کننده بتالاکتامازهای وسیع الطیف (ESBLs) به دلیل مقاومت نسبت به آنتی‌بیوتیک­های مختلف مشکلات درمانی فراوانی را ایجاد نموده است. هدف از مطالعه حاضر، بررسی حضور انواع ژن‌های مولد ESBLs در جدایه های بالینی اشریشیاکلی و تعیین الگوی مقاومت آنها در برابر آمیکاسین، سفتریاکسون، ایمی پنم و مروپنم می‌باشد. مواد و روش‌ها: 500 جدایه بالینی اشریشیاکلی طی فروردین 1391 تا اردیب...

Journal: :Nihon rinsho. Japanese journal of clinical medicine 2001
Y Hirakata

TEM- or SHV-type extended-spectrum beta-lactamases(ESBLs) are of clinical concern in Europe and the United States, whereas bacterial strains producing such types of ESBLs had not been reported in Japan for many years. Toho-1, a different type class A ESBL, has been reported in 1995, in which any prototypical enzyme has not been identified so far. At present Toho-1 is the major ESBL in Japan, ho...

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