نتایج جستجو برای: escherichia coli e coli

تعداد نتایج: 1124098  

Background: This study aimed to describe the association between age groups and antimicrobial susceptibility patterns, also integron presence in Escherichia coli and Klebsiella pneumoniae  isolates from Tabriz, Iran. Materials and methods: 140 isolates of E. coli and 150 isolates of K. pneumoniae, both comprising the same number of children and adult isolates were examined for susceptibil...

Jafar Amani, Mahdi Fasihi Ramandi, Mehdi Kamali, Seyed Latif Mousavi, Tahere Doavi,

Background: Enterohemorrhagic Escherichia coli (EHEC) O157:H7 is an infectious zoonotic pathogen causing human infections. These infections, in some cases, can lead to hemolytic uremic syndrome and its life-threatening complications and even death worldwide. The first intimate bacterial adhesion, intimin (I), with its own receptor translocated intimin receptor (Tir) and E. coli secreted protein...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم پایه 1389

سوسری ها ، حداقل 250 میلیون سال است که روی کره زمین حضور دارند و آنها از لحاظ تکاملی درسازگاری با عوامل محیطی مانند پاتوژن ها کاملا موفق بوده اند . داشتن پتانسیل بالا درمقابله با باکتری ها به آنها اجازه داده است که در مکان های بسیار آلوده مانند چاههای فاضلاب زندگی کنند . بنابراین ، این تحقیق بر این اساس بنا نهاده شده است که عوامل ضد باکتریایی در همولنف سوسری امریکایی ( periplaneta americana) و ...

Background: Outer membrane proteins (OMPs) constitute the main structure and about half of the cell wall of Gram-negative bacteria. The OMPs of Escherichia coli (E. coli) play an important role in its drug resistance. Previous studies have shown that the OMPs of E. coli enhance its pathogenic effects by helping the bacterium to evade the immune defense and promote its adsorption to host cells. ...

2014
Adebola Onanuga Oluwatoyin Igbeneghu Adebayo Lamikanra

INTRODUCTION Diarrhoeagenic Escherichia coli (DEC) are major causes of diarrhoea in Nigeria. This study was conducted to determine the prevalence of diarrhoea caused by DEC within the Federal Capital Territory, Abuja, Nigeria. METHODS A total of 730 rectal swabs obtained from 201 children with diarrhoea and 529 healthy controls aged 0-24 months were cultured for the isolation of Escherichia c...

Journal: :jundishapur journal of microbiology 0
masoumeh navidinia department of medical bacteriology, faculty of medical sciences, tarbiat modares university, tehran, ir iran shahin najar peerayeh department of medical 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/fax: +98-2182883870 fatemeh fallah pediatric infection research centre, mofid children hospital, shahid beheshti university of medical sciences tehran, ir iran bita bakhshi department of medical bacteriology, faculty of medical sciences, tarbiat modares university, tehran, ir iran

results we found a high number of pai markers such as pai icft073, pai iicft073, pai i536, pai iv536, pai ii j96 and pai ii536 significantly associated with upec. the pai iv536 was the most detected ones among fecal e. coli isolated from healthy people while pai i536, pai ii536 and pai ij96 were not seen. pcr phylogenetic groups typing revealed that uropathogenic strains were mainly found in b2...

Journal: :journal of health sciences and surveillance system 0
mahtab hadadi department of bacteriology and virology, school of medicine, shiraz university of medical sciences, shiraz, iran yalda malekzadegan department of bacteriology and virology, school of medicine, shiraz university of medical sciences, shiraz, iran hamid heidari department of bacteriology and virology, school of medicine, shiraz university of medical sciences, shiraz, iran hadi sedigh ebrahim-saraie department of bacteriology and virology, school of medicine, shiraz university of medical sciences, shiraz, iran mohammad motamedifar department of bacteriology and virology, school of medicine, shiraz university of medical sciences, shiraz, iran shiraz hiv/aids research center, shiraz university of medical sciences, shiraz, iran

abstract background: escherichia coli, known as a clinically significant bacteria, can cause a wide range of infections, including urinary tract infections (utis), blood stream infections (bsis), and can frequently be isolated from various clinical specimens. evaluation of antimicrobial resistant pattern is a necessary action, especially about such bacteria which are frequent and life threateni...

Journal: :iranian journal of veterinary research 2012
a. amin m. irfanullah a. hameed s. andaleeb m. ayaz khan

the present study aimed to evaluate the antibiotic resistance pattern of escherichia coli strains isolatedfrom animals to ascertain the levels of antibiotic resistance pervasiveness. a total of 28 e. coli strains wereisolated from faecal samples and the antibiotic resistance pattern of e. coli strains was determined by meansof disc diffusion assay. the resistance pattern determined for all stra...

Journal: :international journal of nano dimension 0
b. sadeghi department of chemistry, faculty of science, islamic azad university, tonekabon branch, tonekabon, iran. m. jamali biology student, member of young research club, islamic azad university of tonekabon, iran. sh. kia chemistry student, member of young research club, islamic azad university of tonekabon, iran. a. amini nia chemistry student, member of young research club, islamic azad university of tonekabon, iran. s. ghafari chemistry student, member of young research club, islamic azad university of tonekabon, iran.

we consider of the antimicrobial activity on the ag nanoparticles(ag nps) aqueous solutions, which was prepared using a stabilizer, such as poly(n vinyl 2 pyrrolidone pvp , for staphylococcus aureus) s aureus and escherichia coli e coli by measuring the minimum inhibitory concentration mic . antimicrobial effect of ag nps for s aureus and e coli was investigated using disk diffusion method also...

ژورنال: Medical Laboratory Journal 2015
Jahani, S, , Karbasizade, V, , Shahreki Zahedani, SH, ,

Abstract Background and Objective: In the past, most strains of E. coli were susceptible to a wide range of antimicrobial agents, but this situation is now changed by indiscriminate use of antibiotics. Ceftriaxone and Ceftazidime are the most current antibiotics used for Enterobacteriaceae infections in hospitals. The aim of this study was to determine antimicrobial resistance of Escherichia co...

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