Results 71 to 80 of about 40,224 (222)

F9 fimbriae of uropathogenic Escherichia coli are expressed at low temperature and recognise Galβ1-3GlcNAc-containing glycans. [PDF]

PLoS ONE, 2014
Uropathogenic Escherichia coli (UPEC) is the leading causative agent of urinary tract infections (UTI) in the developed world. Among the major virulence factors of UPEC, surface expressed adhesins mediate attachment and tissue tropism.
Daniël J Wurpel, Makrina Totsika, Luke P Allsopp, Lauren E Hartley-Tassell, Christopher J Day, Kate M Peters, Sohinee Sarkar, Glen C Ulett, Ji Yang, Joe Tiralongo, Richard A Strugnell, Michael P Jennings, Mark A Schembri   +12 more
doaj   +1 more source

Regulation of bistability in the std fimbrial operon of Salmonella enterica by DNA adenine methylation and transcription factors HdfR, StdE and StdF [PDF]

, 2019
Bistable expression of the Salmonella enterica std operon is controlled by an AND logic gate involving three transcriptional activators: the LysR-type factor HdfR and the StdE and StdF regulators encoded by the std operon itself.
Casadesús Pursals, Josep, García Pastor, Lucía, Jakomin, Marcello, Puerta Fernández, Elena, Sánchez Romero, María Antonia   +4 more
core   +1 more source

Nanoparticles in Periodontology and Implant Dentistry: From Mechanisms to Clinical Applications

Journal of Periodontal Research, EarlyView.
Nanotechnology holds significant promise in improving dental care, yet there is a need for more reliable clinical studies to validate its effectiveness and safety. ABSTRACT Recent advances in nanotechnology are reshaping the landscape of periodontology and implant dentistry, particularly through the application of nanoparticles (NPs).
Chun Xu, Yuan Chen, Mario Romandini, Håvard Jostein Haugen, Sašo Ivanovski   +4 more
wiley   +1 more source

Draft Genome Sequence of an Escherichia coli O157:H43 Strain Isolated from Cattle [PDF]

, 2013
Here we report the draft genome sequence of an Escherichia coli O157:H43 strain, designated T22, with an atypical virulence gene profile and isolated from healthy cattle.
Horváth, Balázs, Maróti, Gergely, Sváb, Domonkos, Szűcs, Attila, Tóth, István   +4 more
core   +1 more source

Periodontal Medicine Rewired: Mechanisms Linking Periodontitis to Systemic Diseases

Journal of Periodontal Research, EarlyView.
This review reorganizes decades of research in periodontal medicine into a multi‐dimensional framework, illustrating how periodontitis influences systemic health through at least seven interconnected mechanisms. ABSTRACT Periodontitis is now recognized not merely as a localized oral condition but as a systemic disease linked to over 70 communicable and
Mario Romandini, George Hajishengallis, Mike Curtis, Giacomo Baima   +3 more
wiley   +1 more source

Enteropathogenic Escherichia coli O157 Strains from Brazil

Emerging Infectious Diseases, 2003
We describe two serogroup O157 Escherichia coli strains from Brazilian infants with diarrhea. A variety of assays indicate that these strains belong to the enteropathogenic, not the enterohemorrhagic, pathotype.
T. Eric Blank, David W. Lacher, Isabel C.A. Scaletsky, Hailang Zhong, Thomas S. Whittam, Michael S. Donnenberg   +5 more
doaj   +1 more source

Modeling fimbriae mediated parasite–host interactions

Journal of Theoretical Biology, 2010
Type 1 fimbriae are a known virulence factor in a number of pathogenic enterobacteriaceae, including Salmonella, Shigella and E. coli. Yet, they are also expressed by some commensal strains, notably of E. coli. One hypothesis of the role of fimbriae in commensals is that they evoke a small but tolerable host immune response in order to have the host ...
Chu, Dominique, Barnes, David J.
openaire   +2 more sources

Helical structure of Bordetella pertussis fimbriae [PDF]

Journal of Bacteriology, 1986
The helical structures of Bordetella pertussis fimbriae of serotypes 2 and 6 were determined by optical diffraction analysis of electron micrographs of negatively stained paracrystalline bundles of purified fimbriae. The fimbrial structure is based on an axial repeat of 13 nm that contains five repeating units in two complete turns of a single-start ...
A C, Steven, M E, Bisher, B L, Trus, D, Thomas, J M, Zhang, J L, Cowell   +5 more
openaire   +2 more sources

Random Mutagenesis in Porphyromonas gingivalis Enables Isolation of Mutants With Enhanced Secreted Protease Activity

Molecular Oral Microbiology, EarlyView.
ABSTRACT Porphyromonas gingivalis is a key pathogen in periodontitis, with secreted proteases as major virulence factors. We developed a screening method to generate and identify P. gingivalis mutants with elevated protease activity. Mutations were induced using the mutagens 2,6‐diaminopurine (2,6‐DAP) or ethyl methanesulfonate (EMS), and the ...
Takeru Nakabayashi, Satoshi Yuhara, Kosei Tanaka   +2 more
wiley   +1 more source

A novel approach for detecting Salmonella enterica strains frequently attributed to human illness—development and validation of the highly pathogenic Salmonella (HPS) multiplex PCR assay

Frontiers in Microbiology
IntroductionNon-typhoidal Salmonella enterica (NTS) are leading bacterial agents of foodborne illnesses and a global concern for human health. While there are over 2,600 different serovars of NTS, epidemiological data suggests that certain serovars are ...
Dayna M. Harhay, Kerry D. Brader, Tatum S. Katz, Gregory P. Harhay, James L. Bono, Joseph M. Bosilevac, Tommy L. Wheeler   +6 more
doaj   +1 more source