Results 81 to 90 of about 20,545 (216)

The Silent Link: Exploring the Impact of Periodontal Diseases on Head and Neck Carcinogenesis

Clinical and Experimental Dental Research, Volume 12, Issue 3, June 2026.
ABSTRACT Objectives Oral dysbiosis can accelerate the progression of head and neck squamous cell carcinoma (HNSCC) by fostering a pro‐inflammatory, immunosuppressive, and metabolically altered environment. This narrative review examines the relationships between periodontitis‐associated bacteria and HNSCC, focusing on their impact on oncogenic pathways,
Yashmin Afshar, Nima Rezaei
wiley   +1 more source

Structural and Biophysical Comparison of UPEC and ETEC Adhesion Fimbriae

, 2015
Adhesion fimbriae (pili) of uropathogenic and enterotoxigenic Escherichia coli (UPEC and ETEC, respectively) facilitate adherence of the bacteria to target cells.
Zakrisson, Johan,, Epler, Chelsea R., Mortezaei, Narges,, Singh, Bhupender,, Mortezaei, Narges, Zakrisson, Johan, Wiklund, Krister,, Singh, Bhupender, Wiklund, Krister, Andersson, Magnus,, Bullitt, Esther, Andersson, Magnus, Epler, Chelsea   +12 more
core   +1 more source

Heterogeneous Systemic IgG Responses to Porphyromonas gingivalis Gingipains in Advanced Periodontitis

Clinical and Experimental Dental Research, Volume 12, Issue 3, June 2026.
ABSTRACT Objectives To evaluate serum IgG responses against Porphyromonas gingivalis gingipains RgpB and Kgp in patients with stage III and IV periodontitis and examine associations with clinical periodontal parameters. Materials and Methods This exploratory cross‐sectional study included participants with advanced periodontitis (Stage III and IV ...
Steffen Büttner, Sonja H. M. Derman, Alexander Simonis, Alicia M. Meyer‐Hofmann, Max von Kohout, Manuel Koch, Anna Greta Barbe   +6 more
wiley   +1 more source

Difference in the regulation of IL-8 expression induced by uropathogenic E. coli between two kinds of urinary tract epithelial cells

Journal of Biomedical Science, 2009
Bacterial adherence to epithelial cells is a key virulence trait of pathogenic bacteria. The type 1 fimbriae and the P-fimbriae of uropathogenic Escherichia coli (UPEC) have both been described to be important for the establishment of urinary tract ...
Chen Chun-Ming, Chen Kwei-Yi, Yang Ya-Ting, Wu Yi-Chien, Tsai Tzung-Chieh, Lai Hong-Thih, Tsai Kun-Wei, Li Yi-Shuan J, Chen Cheng-Nan   +8 more
doaj   +1 more source

RNAs Associated With Bacterial Outer Membrane Vesicles: Structural Insights Into Surface Composition

Journal of Extracellular Vesicles, Volume 15, Issue 6, June 2026.
This work uncovers a new layer of bacterial communication. We show that RNAs, aided by the Hfq RNA‐chaperone, are not only packed inside Gram negative Outer Membrane Vesicles (OMVs) but can also be embedded in their membranes. This suggests that bacteria may use surface‐exposed RNAs to directly interact with host cells. Overall, our results broaden the
Kevin Mosca, Florian Turbant, Wafa Achouak, Frank Wien, Véronique Arluison   +4 more
wiley   +1 more source

Antibodies Change the Mechanics of Adhesion Fimbriae - a Case Study of CS20 Fimbriae Expressed by Enterotoxigenic Escherichia Coli

, 2015
Enterotoxigenic Escherichia coli (ETEC) express a variety of fimbriae that mediate adhesion to host epithelial cells. It has been shown that the ability of a fimbriated bacterial cell to attach and stay attached to host cells does not merely depend on ...
Uhlin, Bernt Eric, Uhlin, Bernt Eric,, Singh, Bhupender, Mortezaei, Narges,, Singh, Bhupender,, Savarino, Stephen J., Savarino, Stephen, Andersson, Magnus,, Bullitt, Esther, Mortezaei, Narges, Andersson, Magnus   +10 more
core   +1 more source

Molecular analysis of type 3 fimbrial genes from Escherichia coli, Klebsiella and Citrobacter species

BMC Microbiology, 2010
Background Catheter-associated urinary tract infection (CAUTI) is the most common nosocomial infection in the United States and is caused by a range of uropathogens.
McEwan Alastair G, Forestier Christiane, Totsika Makrina, Beatson Scott A, Ong Cheryl-lynn Y, Schembri Mark A   +5 more
doaj   +1 more source

Escherichia coli, fimbriae, bacterial persistence and host response induction in the human urinary tract

International Journal of Medical Microbiology, 2005
Urinary tract infections (UTI) are among the most common bacterial infections in humans. Symptomatic UTIs may be acute, recurrent or chronic but the most frequent form of UTI is asymptomatic bacteruria (ABU). In ABU, the mucosa remains inert, despite the presence of large bacterial numbers in urine.
Göran, Bergsten, Björn, Wullt, Catharina, Svanborg   +2 more
openaire   +2 more sources

Interplay Between Virulence Genes, Antimicrobial Resistance Profiles, and Biofilm Formation in Klebsiella pneumoniae Causing Urinary Tract Infections in North Lebanon

MicrobiologyOpen, Volume 15, Issue 3, June 2026.
– Figure design (single panel) Central icon: K. pneumoniae cell Left panel – Virulence genes (icons): Adhesion: fimH, mrkD → strong biofilm Capsule/regulation: magA, rmpA Siderophores: entB, iucA → iron uptake Right panel – Outcomes: Biofilm strength (weak → strong gradient) Antibiotic resistance (ESBL, MDR) Bottom split: Hospital‐acquired → strong ...
Mazen Zaylaa, Rayan Farha, Jana Taleb, Amal Saad, Omar El Gharbawy, Ricardo Sarraf, Ibtihal Kassam, Chadi Hamdach, Nisrine Bissar   +8 more
wiley   +1 more source

Structure and function of enterotoxigenic Escherichia coli fimbriae from differing assembly pathways

, 2015
Pathogenic enterotoxigenic Escherichia coli (ETEC) are the major bacterial cause of diarrhea in young children in developing countries and in travelers, causing significant mortality in children.
Mortezaei, Narges,, Shirdel, Mariam, Shirdel, Mariam,, Bhupender, Singh,, Mortezaei, Narges, Bhupender, Singh, Uhlin, Bernt Eric, Uhlin, Bernt Eric,, Bullitt, Esther,, Savarino, Stephen, Andersson, Magnus,, Bullitt, Esther, McVeigh, Annette, Epler, Chelsea, Andersson, Magnus, Shao, Paul   +15 more
core   +1 more source