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...

background: targeting of cd20 antigen with monoclonal antibodies has become the mainstay in the treatment of non-hodgkin's lymphomas and immunotherapeutic depletion of malignant b cells. accessibility of antigen is one of the crucial factors in development of monoclonal antibodies against this antigen. one major problem in expression of full length cd20 is aggregation and misfolding. there...

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 ...

To study the importance of a rigid copper site for the structure and function of azurin, a mutant with a reduced number of internal hydrogen bonds around the copper has been prepared and characterized. To this purpose, the previously cloned azu gene from Alcaligenes denitrificans (Hoitink, C. W. G., Woudt, L. P., Turenhout, J. C. M., Van de Kamp, M., and Canters, G. W. (1990) Gene (Amst.) 90, 1...

In this paper, Chitosan-copper nanoparticles were successfully coated onto the Kraft paperusing a dip coating process. First, chitosan-copper nanoparticles solution was prepared byreduction method and the use of ultrasonic radiation. It was employed copper sulphate pentahydrateas precursor salt, NaOH as a reducing agent and Chitosan as capping agent to prepareChitosan-copper nanoparticles solut...

Adenosine 3 ′, 5′-monophosphate (cAMP) is an important signaling molecule. CRP, the receptor protein of cAMP, acts as 'main' regulator for transcription factors. The CRP-cAMP complex directly controls at least 500 promoters in Escherichia coli. In this study, roles cyaA and crp genes E. coli BW25113 strain under metal stress were investigated. minimal inhibition concentration (MIC) cidal (MCC) ...

the present work was conducted to compare the occurrence of escherichia coli possessing virulence and esbl genes in backyard and farmed poultry. three hundred and sixty samples from the poultry kept in backyard system and 120 samples from the farmed birds were collected from west bengal, india. among the e. coli isolates of backyard poultry (o2, o10, o25, o55, o60, o106, ut), none of them posse...

background and objectives: diarrheagenic escherichia coli (dec) is an emerging agent among pathogens that causes diarrhea. studies showed that diarrheagenic e. coli such as enterohaemorrhagic e. coli (ehec), enteroaggregative e. coli (eaec), enteropathogenic e. coli (epec), enteroinvasive e. coli (eiec), enterotoxigenic e. coli (etec), diffusely adhering e. coli (daec) and shiga toxin producing...