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Genomic fingerprints of Escherichia coli strains isolated from surface water in Alborz province, Iran

Background Consistent use of suitable diagnostic methods is essential to evaluate the genomic diversity of E. coli strains. Advance of efficient methods to discriminate the causes of E. coli in aquatic environments is important. This study aimed to describe the strain diversity of an E. coli population retrieved from surface water. Methods One hundred water samples were drawn...

Picosecond excitation energy transfer of allophycocyanin studied in solution and in crystals

have two spectrally different PCBs per monomer, a high- and a low-energy pigment. The crystal structure of the APC trimer reveals the close Vol.:(011233456789) - Reza Ranjbar Choubeh and Ravi R. Sonani

Shiga (Vero)-toxin producing Escherichia coli isolated from the hospital foods; virulence factors, o-serogroups and antimicrobial resistance properties

, Tehran, Iran (Consent Ref Number 94-11052). Verification of this research project and the licenses related to sampling process were approved by Prof. Reza Ranjbar (Approval Ref Number Med-94-206350). 1

Helicobacter pylori in bottled mineral water: genotyping and antimicrobial resistance properties

Background Up to now, fecal–oral and oral–oral are the most commonly known routes for transmission of H. pylori, therefore, contaminated water can play an important role in transmission of H. pylori to humans. Genotyping using virulence markers of H. pylori is one of the best approaches to study the correlations between H. pylori isolates from different samples. The present...

Prevalence of class 1 and 2 integrons in multi-drug resistant Escherichia coli isolated from aquaculture water in Chaharmahal Va Bakhtiari province, Iran

Background Integrons play important role in the spread and maintenance of antimicrobial resistance among strains of Escherichia coli (E. coli) and other species of Enterobacteriaceae. This study investigated the prevalence of class 1 and 2 integrons among E. coli strains isolated from aquaculture water of fish fields in Iran. Methods One hundred and fifty water samples from...

High frequency distribution of heterogeneous vancomycin resistant Enterococcous faecium (VREfm) in Iranian hospitals

Reza Zali Reza Ranjbar Masoud Alebouyeh Trkan Sakinc Liaqat Ali 0 Department of Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University , P. O. Box: 14115-111, Tehran , Iran Background

Uropathogenic Escherichia coli in Iran: Serogroup distributions, virulence factors and antimicrobial resistance properties

Background Urinary tract infections (UTIs) are one of the most common bacterial infections with global expansion. These infections are predominantly caused by uropathogenic Escherichia coli (UPEC). Methods Totally, 123 strains of Escherichia coli isolated from UTIs patients, using bacterial culture method were subjected to polymerase chain reactions for detection of various O...

Characterization of endemic Shigella boydii strains isolated in Iran by serotyping, antimicrobial resistance, plasmid profile, ribotyping and pulsed-field gel electrophoresis

Background Shigellosis is one of the major causes of morbidity in children with diarrhea in Iran. The present study was undertaken to characterize apparently sporadic Shigella boydii strains isolated from pediatric patients in Iran. Findings Ten S. boydii strains isolated from pediatric cases of gastroenteritis and acute diarrhea in Tehran between December 2002 and November 2003...

Genetic relatedness among isolates of Shigella sonnei carrying class 2 integrons in Tehran, Iran, 2002–2003

Background Shigella spp. are major cause of diarrhoeal disease in both developing and developed countries. Shigella sonnei is the serogroup of Shigella most frequently responsible for sporadic and epidemic enteritis in developed countries. In recent years the emergence and spread of S. sonnei biotype g carrying class 2 integron have been frequently reported in many countries...