Nanotechnology is a new and specific method for therapy of diseases. Nanosilver particle is one of the functional fields of nanotechnology. It has been shown that these nanoparticles have antibacterial and antifungal properties. Different studied have been shown that nanoparticles may have important role in medicine. For example, it has been shown to have inhibitory effects on the treatment of ...

the present study was conducted to investigate antimicrobial resistant pattern of escherichia coli (e. coli) strains isolated from clinical specimens of jordanian pediatric patients during the period from january to december 2008. a total of 444 e. coli strains were isolated from clinical specimens and tested for their susceptibility to different antimicrobial drugs. overall, high resistance ra...

enterohemorrhagic escherichia coli (ehec) of the o157:h7 serotype is a worldwide zoonotic pathogen responsible for the majority of severe cases of human ehec disease. the aim of the present study was to investigate the prevalence of e. coli o157: h7/nm in raw meat samples from two provinces of iran. during a period from march 2010 to march 2011. two hundred and ninety five raw meat samples were...

data describing the microbiological status of a country’s meat products can be of great value: in acting as a de facto validation of the country’s regulatory systems, as a baseline for setting performance standards and in supporting risk assessment. o26, o45, o91, o103, o111, o113, o121, o128, o145, and o157 are the most common serotypes of enterohemorrhagic escherichia coli associated with hum...

aroa is an important gene which produces aromatic amino acids essential for bacterial life. the sequence of this gene was shown to be different in bacteria, so the purpose of this study was sequencing of aroa gene in native e. coli o78: k80 to determine the putative differences between this strain and other e. coli o78: k80 strains in gene bank. pcr was used to amplify aroa gene in native e. co...

in this study, to know about the phylogeny of escherichia coli isolated from broilers with collibacillosis in tabriz, 70 e. coli isolates recovered from broilers with collibacillosis were characterized for phylogenetic group (a, b1, b2, d) by multiplex pcr. of the all 70 samples, 35 (50%) isolates were classified as type a, 32 (45%) as type d, 2 (2.8%) as type b1 and 1 (2.8%) as type b2. thi...

Background: Pivotal roles of Nerve growth factor (NGF) in the development and survival of both neuronal and non-neuronal cells indicate its potential for the treatment of neurodegenerative diseases. However, investigation of NGF deficits in different diseases requires the availability of properly folded human b-NGF. In previous studies bacterial expression of hNGF demonstrated the feasibility o...

conclusions our findings show that lactobacillus strains with human origin had a mild inhibitory activity against the diarrheagenic e. coli, and these strains may be useful as probiotic candidates in prevention of intestinal infections caused by diarrheagenic e. coli. results a total of 20 lactobacillus isolates were identified from stool samples. lactobacillus fermentum was the most frequently...