نتایج جستجو برای: eaea gene

تعداد نتایج: 1141478  

Journal: :Journal of clinical microbiology 2003
Jun Yatsuyanagi Shioko Saito Yoshimichi Miyajima Ken-Ichi Amano Katsuhiko Enomoto

The virulence traits of the Escherichia coli strain associated with a waterborne diarrhea outbreak were examined. Forty-one of 75 students (ages 12 to 15) in Akita Prefecture, Japan, showed clinical symptoms. Seven E. coli Ouk:K-:H45 isolates were isolated from the patients as the causative agent of this outbreak. One isolate (EC-3605) showed the presence of E. coli attaching-and-effacing (eaeA...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده دامپزشکی 1389

هدف از انجام این پایان نامه تعیین فراوانی سویه های تولید کننده شیگا توکسین (stec) اشریشیاکلی و تعیین گروه فیلوژنتیکی جدایه های اشریشیاکلی در محتویات گوارشی طوطی، مرغ مینا و بلبل وحشی بود. برای این منظور، از محتویات گوارشی 122 پرنده وحشی شامل 59 طوطی، 41 مرغ مینا و 22 بلبل نمونه برداری شد. نمونه ها جهت جداسازی عوامل آنتروباکتریائی در محیط های مناسب کشت شد. جدایه های اشریشیاکلی پس از جداسازی مورد...

2014
Farzad Shahcheraghi Fatemeh Rahmati Ghezelgeh Saman Nobari Elham Torabi Seyed Fazlollah Mousavi Mohammad Mehdi Aslani Fereshteh Shahcheraghi

BACKGROUND AND OBJECTIVES The therapeutic options for diseases caused by Escherichia coli are limited. In this study we investigated the presence of virulence factors among Enteropathogenic Escherichia coli (EPEC) strains and their antibiotic resistance patterns. The isolates were also checked for the presence of class1 integrons and gene cassettes. MATERIALS AND METHODS This study included 7...

Journal: :iranian journal of veterinary research 2015
a. mahanti i. samanta s. bandyopadhyay s. n. joardar

the present study was conducted to detect the occurrence, serotype, genotype, phylogenetic relationship and antimicrobial resistance pattern of stec from healthy goats of west bengal, india. from the 125 faecal samples collected from healthy goats, 245 isolates were identified as escherichia coli. the e. coli harbouring any gene for shiga toxins (stx1/stx2) was detected in 36 (14.7%) of the 245...

Journal: :Biomedical and environmental sciences : BES 2004
Jun-Wen Li Xiu-Quan Shi Fu-Huan Chao Xin-Wei Wang Jin-Lai Zheng Nong Song

OBJECTIVE To develop a rapid and definite diagnostic test of bacterial enteritis caused by pathogenic enterobacteria, the most frequent etiologic agent of infectious enteritis in the world. METHODS A set of conventional PCR assays were applied to detect and identify salmonella, shigella, and E. coli O157:H7 directly from pure culture and fecal samples. The general primers of pathogenic entero...

ژورنال: فیض 2013
شکیب, پگاه, زیبایی, محمد, عادلی, زهرا , فیروزه, فرزانه ,

سابقه و هدف: اشریشیاکلی تولیدکننده شیگاتوکسین یکی از پاتوژن­های مهم ایجادکننده بیماری­های منتقل شونده از طریق مواد غذایی می­باشد که ممکن است منجر به بروز سندروم­های خطرناکی مانند سندروم اورمی همولیتیک در انسان گردد. تاکنون مواردی از بروز اورمی همولیتیک متعاقب عفونت­های ادراری گزارش شده است. هدف از این پژوهش بررسی ژن‌های 1 stx ,2stx ,eaeA در سویه­های اشریشیا کلی جدا شده از نمونه­های ادراری در شه...

Journal: :iranian journal of pharmacology and therapeutics 0
a. sandeep majumdar m. natvarlal saraf r. yadav kamble

the present study investigates the antioxidant potential of the ethyl acetate fraction of the aerial parts eclipta alba l. hassk (eaea) which was widely used as hepatoprotective plant. eaea was orally administered at doses of 50, 100 and 200 mg/kg for 7 days in male charles foster rats. the extent of hepatoprotective potential of e . alba was studied by assessing the biochemical parameters like...

Journal: :Journal of clinical microbiology 1998
M Louie S Read A E Simor J Holland L Louie K Ziebell J Brunton J Hii

Primers were designed to amplify sequences of verocytotoxin genes and eaeA genes of Escherichia coli O26:H11, O111:H8, and O157:H7 in a multiplex PCR assay. This assay successfully detected E. coli O26:H11 in bloody stool specimens in which other enteric pathogens were not detected by culture-based methods. Rapid assays to detect non-O157:H7 verocytotoxin-producing E. coli is important to impro...

Background: Foodborne outbreaks associated with shiga toxin-producing Escherichia coli (STEC) have been well documented worldwide. STECs are major causative agents of gastroenteritis in humans that may be complicated by hemorrhagic colitis (HC), hemolytic uremic syndrome (HUS), and thrombotic thrombocytopenia purpura (TTP). OBJECTIVES: The aim of this study was to investigate the presence of vi...

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