Results 111 to 120 of about 40,224 (222)

Fimbriae‐Targeted Peptide‐Selenoviologen Cyclophane Complex for Enhanced Photodynamic Therapy of Periodontitis

open access: yesAggregate
Photodynamic therapy (PDT) holds great promise for treating periodontitis, yet its clinical efficacy is limited by the lack of specificity of conventional photosensitizers toward pathogenic bacteria. Herein, we developed a targeted photosensitizer system
Rui Ding   +7 more
doaj   +1 more source

Bactericidal, Bacteriostatic, and Fungicidal Activities of Clausena anisata Fruit and Its Compounds, Stigmasteryl 3‐Palmitate (a Phytosterol Ester) and Phellopterin (a Furanocoumarin), Against Some Clinical Pathogens

open access: yesMicrobiologyOpen, Volume 15, Issue 2, April 2026.
C. anisata fruit extract and its compounds demonstrated potent broad‐spectrum antimicrobial activity, notably against Klebsiella pneumoniae (MIC 0.625 mg/mL; MLC 2.5 mg/mL) and Candida albicans (MIC 0.0781 mg/mL; MLC 0.625 mg/mL). The findings highlight promising bactericidal and fungicidal potential of stigmasteryl 3‐palmitate and phellopterin against
Emmanuel Kofi Kumatia   +5 more
wiley   +1 more source

A general procedure for small-scale purification of fimbriae expressed by porcine enterotoxigenic Escherichia coli strains

open access: yesRevista Colombiana de Biotecnología, 2008
Fimbriae expression by enterotoxigenic Escherichia coli strains is a complex process which is controlled by global and local transcriptional regulators and post-transcriptional control.
Ana Cristina Campal Espinosa   +7 more
doaj  

Distribution of chaperone-usher fimbriae and curli fimbriae among uropathogenic Escherichia coli

open access: yesBMC Microbiology
In the present study, we aimed to determine the frequency of the csgA, fimH, mrkD, foc, papaGI, papGII and papGIII genes, to provide and to design fimbrial adhesin gene (FAG) patterns and profiles for the isolated uropathogenic Escherichia coli (UPEC) strains.The enrollment of 108 positive urine samples was performed during seven months, between ...
Taha Golpasand   +2 more
openaire   +3 more sources

Imported Retail Beef and Chicken Meat Products Serve as Reservoirs for Emerging Antibiotic‐Resistant Pathotypes of Escherichia coli in Pristine Areas Free From Agricultural Activity

open access: yesMicrobiologyOpen, Volume 15, Issue 2, April 2026.
Retail meat–derived E. coli frequently harbored multidrug‑resistance phenotypes, diverse virulence determinants, and plasmid‑encoded resistance genes with high conjugative potential. Results indicate meat and poultry as underrecognized reservoirs facilitating dissemination of antimicrobial resistance and pathogenic lineages, with imported products ...
Saehah Yi   +7 more
wiley   +1 more source

A previously uncharacterized gene stm0551 plays a repressive role in the regulation of type 1 fimbriae in Salmonella enterica serotype Typhimurium

open access: yesBMC Microbiology, 2012
Background Salmonella enterica serotype Typhimurium produces surface-associated fimbriae that facilitate adherence of the bacteria to a variety of cells and tissues. Type 1 fimbriae with binding specificity to mannose residues are the most commonly found
Wang Ke-Chuan   +3 more
doaj   +1 more source

Porphyromonas gingivalis Suppresses Interferon‐Gamma Signaling in Macrophages Through a Contact‐Dependent, Gingipain‐Mediated Mechanism

open access: yesMicrobiologyOpen, Volume 15, Issue 2, April 2026.
This study reveals that Porphyromonas gingivalis suppresses IFN‐γ signaling by downregulating STAT1 in macrophages. Gingipain protease activity and the Type IX Secretion System are essential for this immune evasion mechanism. These findings identify a novel bacterial strategy for host immune suppression and suggest new therapeutic targets for P ...
Shotaro Abe   +4 more
wiley   +1 more source

Plant‐produced encapsulin displays non‐typhoidal Salmonella enterica antigens and assembles into mosaic nanoparticles

open access: yesThe FEBS Journal, Volume 293, Issue 7, Page 1908-1929, April 2026.
This study investigates the potential of encapsulin as an antigen display platform for the development of a candidate Salmonella vaccine for poultry. Encapsulin constructs were transiently expressed in Nicotiana benthamiana where they accumulated to high levels.
Carly A. Charron   +6 more
wiley   +1 more source

The adjuvant effect of Gantrez®AN nanoparticles on oral vaccination of pigs and mice with F4 fimbriae is strongly influenced by polymer degradation [PDF]

open access: yes, 2011
We analysed the adjuvant effect of Gantrez nanoparticles NP on oral immunisation of pigs and mice with F4 fimbriae. The animals were vaccinated with F4, F4 encapsulated in Gantrez NP, called gF4 NP, or F4 + empty Gantrez NP, called F4 + gNP, and ...
Cox, Eric   +4 more
core   +1 more source

Utilizing Exhaled Breath and Skin Microbiomes in Assessments of At‐Risk Killer Whales (Orcinus orca)

open access: yesMarine Mammal Science, Volume 42, Issue 2, April 2026.
ABSTRACT For at‐risk populations of killer whales (Orcinus orca), biological samples can offer information about individual animal status. We hypothesized that low‐yield samples could provide sufficient material for microbiome analysis. We collected and analyzed, with amplicon metabarcoding, breath samples from managed care and free‐ranging killer ...
Linda D. Rhodes   +7 more
wiley   +1 more source

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