Cloning, sequencing, and expression of the Escherichia coli cytolethal distending toxin genes.

Escherichia Coli Cytolethal Distending Toxin Cloning, Sequencing, and Expression of The

Investigation of Virulence-Associated genes and Cytolethal Distending Toxin Production in Campylobacter spp. isolated from broilers

The aim of this study was to investigate the prevalence of virulence and Cytolethal Distending Toxin (CDT) genes in the Campylobacter isolates from intestinal contents and gall bladders of broilers and, to evalute their cytotoxic effects on HeLa cell cultures. These genes play important roles in bacterial adherence to intestinal mucosa, flagella-mediated motility, invasive capability and the ab...

Detection of cytolethal distending toxin (cdt) genes of Campylobacter Jejuni and Coli in fecal samples of pet birds in Iran

BACKGROUND: Campylobacteriosis is one of the most commonbacterial intestinal disorders of humans in many countries.A wide range of domestic and wild bird species have been identifiedas natural reservoirs. OBJECTIVES: The aim of this studywas to determine the Campylobacter spp from pet birds andscreen the determined Campylobacters for presence of virulencecytolethal distending toxin (cdt) genes....

Cytolethal distending toxin genes in Campylobacter jejuni and Campylobacter coli isolates: detection and analysis by PCR.

Campylobacter jejuni produces a toxin called cytolethal distending toxin (CDT). Knowledge of the prevalence and homogeneity of Campylobacter sp. cdt genes is incomplete. In this work, we identified four PCR primer pairs that collectively amplified cdt genes in all of the C. jejuni and Campylobacter coli strains tested. Restriction analyses of the cdt PCR products showed clear differences betwee...

Characterization of cytolethal distending toxin genes and expression in shiga toxin-producing Escherichia coli strains of non-O157 serogroups.

We identified cytolethal distending toxin and its gene (cdt) in 17 of 340 non-O157 Shiga toxin-producing Escherichia coli (STEC) strains (serotypes O73:H18, O91:H21, O113:H21, and O153:H18), all of which were eae negative. cdt is either chromosomal and homologous to cdt-V (serotypes O73:H18, O91:H21, and O113:H21) or plasmidborne and identical to cdt-III (serotype O153:H18). Among eae-negative ...