نتایج جستجو برای: escherichia coli
تعداد نتایج: 153418 فیلتر نتایج به سال:
We identified different diarrheagenic (DEC) Escherichia coli pathotypes isolated from 1,207 children with and without acute endemic diarrhea in Salvador, Bahia, Brazil collected as part of a case-control study. Since the identification of DEC cannot be based on only biochemical and culture criteria, we used a multiplex polymerase chain reaction developed by combining five specific primer pairs ...
BACKGROUND Diarrheal diseases can be caused by viral, bacterial and parasitic infections. This paper provides a preliminary image of diarrhea with regards to etiology and epidemiologic factors in Tunisian children less than five years of age. METHODS Overall, 124 diarrhoeal stools were collected from patients suffering from acute diarrhea and 54 stool samples from healthy children. All stools...
The aim of this study was to isolate Escherichia coli from chickens and to determine the presence of the eaeA gene, a virulence factor detected in Escherichia coli, in the isolates by polymerase chain reaction (PCR). Different chicken organs (lung, liver and spleen) were inoculated onto blood agar and biochemical tests were performed on the suspicious isolates. Escherichiacoliwas isolated from ...
Background & Objectives: Escherichia coli is the most common agent of urinary tract infections, with P fimbriae as the most important virulence factor. Uropathogenic Escherichia coli expresses various types of adhesive genes such as P fimbriae and pyelonephritis-associated pili (PAP), which mediate the binding to the surface of epithelial cells in the urinary tract. This study aimed to iden...
This case-control study detected and characterized Shigella and diarrheagenic Escherichia coli (DEC) types among Vietnamese children less than 5 years old. In 249 children with diarrhea and 124 controls, Shigella spp. was an important cause of diarrhea (P < 0.05). We used multiplex PCR and DNA probes to detect enteroinvasive E. coli (EIEC), enteroaggregative E. coli (EAggEC), enteropathogenic E...
Escherichia coli (E. coli) is the predominant nonpathogenic facultative flora of the human intestine [1]. However, several strains of E. coli have developed the ability to cause disease in humans. Strains of E. coli that cause gastroenteritis in humans can be grouped into six categories: enteroaggregative (EAEC), enterohemorrhagic (EHEC), enteroinvasive (EIEC), enteropathogenic (EPEC), enteroto...
فعالیت ضدباکتریایی (حداقل غلظت مهارکنندگی و کشندگی) عصاره آبی گزنه و مرزنگوش در مقابل 3 باکتری بیماریزا و عامل فساد مواد غذایی escherichia coli, salmonella typhi و pseudomonasaeruginosa با استفاده از روش رقتلولهای(macro dilution method) ارزیابی شد. مقدار حداقل غلظت بازدارندگی عصاره آبی مرزنگوش بر salmonella typhi mg/ml 25/1 و در مورد pseudomonas aeruginosaو escherichia coli برابر با mg/ml 5 ...
Background: The radiation emitted from electromagnetic fields (EMF) can cause biological effects on prokaryotic and eukaryotic cells, including non-thermal effects. Objective: The present study evaluated the non-thermal effects of wireless fidelity (Wi-Fi) operating at 2.4 GHz part of non-ionizing EMF on different pathogenic bacterial strains (Escherichia coli 0157H7, Staphylococcus aureu...
background: organisms producing ctx-m-β-lactamase are emerging around the world as a source of resistance to oxyiminocephalosporins such as cefotaxime. however, the laboratory detection of these strains is not well defined. the aim of this study was to determine the presence and prevalence of known ctx-m-β-lactamases genes in clinical isolates of escherichia coli from hospitals of tehran. meth...
diarrheal diseases can be caused by viral, bacterial and parasitic infections. this paper provides a preliminary image of diarrhea with regards to etiology and epidemiologic factors in tunisian children less than five years of age.overall, 124 diarrhoeal stools were collected from patients suffering from acute diarrhea and 54 stool samples from healthy children. all stools were examined for the...
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