Escherichia coli O26:K60, with genetic attributes consistent with a potentially human enterohaemorrhagic E. coli was isolated from the faeces of an eight-month-old heifer with dysentery. Attaching and effacing lesions were identified in the colon of a similarly affected heifer examined postmortem, and shown to be associated with E. coli O26 by specific immunolabelling.
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http://dx.doi.org/10.1136/vr.145.13.370 | DOI Listing |
Biochim Biophys Acta Biomembr
January 2025
Faculty of Veterinary Medicine, University of Calgary, Canada. Electronic address:
The intestinal barrier, held together by epithelial cells and intercellular tight junction (TJ) proteins, prevents the penetration of microbial pathogens. Concurrently, intestinal epithelial cells secrete antimicrobial peptides, including cathelicidin. Cathelicidin has direct antibacterial and immunomodulatory functions, although its role in intestinal integrity remains elusive.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Department of Bacterial Molecular Genetics, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland.
Enterohemorrhagic (EHEC) is a common pathotype of that causes numerous outbreaks of foodborne illnesses. EHEC is a zoonotic pathogen that is transmitted from animals to humans. Ruminants, particularly cattle, are considered important reservoirs for virulent EHEC strains.
View Article and Find Full Text PDFGut Microbes
December 2024
Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
Enteropathogenic (EPEC) is a bacterium that causes attaching/effacing (A/E) lesions and serious diarrheal disease, a major health issue in developing countries. EPEC pathogenicity results from the effect of virulence factors and dysregulation of host responses. Polyamines, including spermidine, play a major role in intestinal homeostasis.
View Article and Find Full Text PDFPLoS Pathog
December 2024
Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America.
Attaching and effacing (A/E) bacterial pathogens consist of human pathogens enteropathogenic Escherichia coli, enterohemorrhagic E. coli and their murine equivalent Citrobacter rodentium (CR). Emerging evidence suggests that the complex pathogen-microbiota-host interactions are critical in conferring A/E pathogen infection-induced severe symptoms and lethality in immunocompromised hosts; however, the precise underlying mechanisms remain enigmatic.
View Article and Find Full Text PDFMol Divers
November 2024
Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, 713209, India.
Escherichia coli (E. coli), a gram-negative bacterium, quickly colonizes in the human gastrointestinal tract after birth and typically sustains a long-term, symbiotic relationship with the host. However, certain virulent strains of E.
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