Results 41 to 50 of about 48,086 (234)

Sequence Variability of P2-Like Prophage Genomes Carrying the Cytolethal Distending Toxin V Operon in Escherichia coli O157 [PDF]

, 2013
Cytolethal distending toxins (CDT) are potent cytotoxins of several Gram-negative pathogenic bacteria, including Escherichia coli, in which five types (CDT-I to CDT-V) have been identified so far.
Allué-Guardia, Appleyard, Asadulghani, Asakura, B. Horvath, Bielaszewska, Bielaszewska, Bielaszewska, Birnboim, Comayras, D. Svab, De Rycke, Friedrich, G. Maroti, Garcia, Hayashi, Hertman, Hinenoya, I. Toth, Iguchi, Janka, Jinadasa, Johnson, Karch, Kim, Kulasekara, Larina, Nesić, Nilsson, Nilsson, Nougayrède, Odegrip, Orth, Osek, Oswald, Pickett, Pérès, Scott, Sváb, Sváb, Tóth, Tóth, Tóth, U. Dobrindt, Woodcock   +44 more
core   +1 more source

A method for detecting Shiga toxin and Shiga-like toxin-l in pure and mixed culture [PDF]

Journal of Medical Microbiology, 1990
Shiga toxin and Shiga-like toxins (SLTs, syn. Verotoxins) are currently detected by tissue culture assays that are expensive, time-consuming and require specialised facilities and experienced personnel. We have developed a rapid method to detect Shiga toxin and SLT-I (Verotoxin 1) based on their binding to globotriosyl ceramide (Gb3).
S, Ashkenazi, T G, Cleary
openaire   +2 more sources

Shiga Toxin—A Model for Glycolipid-Dependent and Lectin-Driven Endocytosis

Toxins, 2017
The cellular entry of the bacterial Shiga toxin and the related verotoxins has been scrutinized in quite some detail. This is due to their importance as a threat to human health.
Ludger Johannes
doaj   +1 more source

Nitric oxide‐enhanced Shiga toxin production was regulated by Fur and RecA in enterohemorrhagic Escherichia coli O157

MicrobiologyOpen, 2017
Enterohemorrhagic Escherichia coli (EHEC) produces Shiga toxin 1 (Stx1) and Shiga toxin 2 (Stx2). Nitric oxide (NO), which acts as an antimicrobial defense molecule, was found to enhance the production of Stx1 and Stx2 in EHEC under anaerobic conditions.
Kimitoshi Ichimura, Takeshi Shimizu, Akio Matsumoto, Shinichiro Hirai, Eiji Yokoyama, Hiroki Takeuchi, Kinnosuke Yahiro, Masatoshi Noda   +7 more
doaj   +1 more source

Draft genome sequences of Escherichia coli O157: H7 strains Rafaela_II (clade 8) and 7.1_Anguil (clade 6) from cattle in Argentina [PDF]

, 2015
Escherichia coli O157:H7 is a major etiologic agent of diseases in humans that cause diarrhea, hemorrhagic colitis, and hemolytic-uremic syndrome. Here, we report the draft genome sequences of two strains isolated from cattle that had high levels of ...
Amadio, Ariel Fernando, Amigo, Natalia, Cataldi, Ángel Adrián, Farber, Marisa Diana, Puebla, Andrea Fabiana   +4 more
core   +1 more source

Postharvest Survival of Foodborne Pathogens on Strawberry Surfaces at Different Maturity Levels

Food Safety and Health, EarlyView.
This study highlights the survival of E. coli and L. monocytogenes on strawberries at different maturity stages and storage temperatures. Predictive microbial modeling revealed temperature‐ and ripeness‐dependent survival trends, emphasizing the importance of temperature control and ripeness in developing effective strategies to enhance strawberry ...
Prachi Pahariya, Derek J. Fisher, Abhinav Mishra, Ruplal Choudhary   +3 more
wiley   +1 more source

Characterization of Shiga Toxin Subtypes and Virulence Genes in Porcine Shiga Toxin-Producing Escherichia coli [PDF]

Frontiers in Microbiology, 2016
Similar to ruminants, swine have been shown to be a reservoir for Shiga toxin-producing Escherichia coli (STEC), and pork products have been linked with outbreaks associated with STEC O157 and O111:H-. STEC strains, isolated in a previous study from fecal samples of late-finisher pigs, belonged to a total of 56 serotypes, including O15:H27, O91:H14 ...
Baranzoni, Gian Marco, Fratamico, Pina M, Gangiredla, Jayanthi, Patel, Isha, Bagi, Lori K., Delannoy, Sabine, Fach, Patrick, Boccia, Federica, ANASTASIO, ANIELLO, PEPE, TIZIANA   +9 more
openaire   +4 more sources

Top-down and middle-down proteomic analysis of Shiga toxin using MALDI-TOF-TOF mass spectrometry

MethodsX, 2019
The method describes a step-by-step process for analysis of putative Shiga toxin-producing Escherichia coli (STEC) for expression of Shiga toxin (Stx).
Clifton K. Fagerquist, William J. Zaragoza   +1 more
doaj   +1 more source

Replication of plasmids derived from Shiga toxinconverting bacteriophages in starved Escherichia coli [PDF]

, 2011
The pathogenicity of Shiga toxin-producing Escherichia coli (STEC) depends on the expression of stx genes that are located on lambdoid prophages. Effective toxin production occurs only after prophage induction, and one may presume that replication of the
Nadratowska-Wesołowska, Beata, Nejman, Bożena, Szalewska-Pałasz, Agnieszka, Węgrzyn, Alicja, Węgrzyn, Grzegorz   +4 more
core  

Colonic Barrier Dysfunction and Inflammation Induced by Nano‐/Micro‐Plastics Fibers in Mice via the FAK/NF‐κB/iNOS and TLR4/NF‐κB/iNOS Pathways

Journal of Applied Toxicology, EarlyView.
ABSTRACT As emerging environmental contaminants, nano‐ and micro‐plastics (NMPs) have drawn increasing research attention due to potential hazards to organisms. Particle shape is a key factor influencing the toxic effects of NMPs, and NMPs of different shapes cause varying degrees of tissue damage. We investigated the specific mechanisms of polystyrene
Yuting Li, Shibo Bao, Puyang Huang, Jiahui Wang, Hongfeng Li, Yahong Liu, Kai Wang, Jianjun Du, Lingjun Yan, Guowei Pan, Wei Sun   +10 more
wiley   +1 more source