Results 11 to 20 of about 4,342 (172)

Prevalence of fimA genotypes of Porphyromonas gingivalis in adolescent orthodontic patients. [PDF]

PLoS ONE, 2017
The placement of fixed orthodontic appliances may alter the composition of oral microbiota and has the potential risk of periodontal complication. Porphyromonas gingivalis fimbriae play a critical role in colonization of P.
Shuang Pan, Yi Liu, Yi Si, Qiang Zhang, Lin Wang, Jianwei Liu, Chunling Wang, Shuiqing Xiao   +7 more
doaj   +4 more sources

Biological and structural characterization of the Type 3 fimbrial subunit MrkA from Klebsiella pneumoniae. [PDF]

Protein Sci
Abstract Klebsiella pneumoniae is a Gram‐negative opportunistic pathogen responsible for a wide range of community‐associated and hospital‐acquired infections and a major cause of neonatal sepsis in low‐ and middle‐income countries. The pathogen's surface fimbriae, particularly the Type 3 fimbriae, are critical for bacterial adhesion, biofilm formation,
Monaci V, Oldrini D, Gasperini G, Banci L, Cantini F, Micoli F.   +5 more
europepmc   +2 more sources

Salmonella typhimurium fimbrial phase variation and FimA expression [PDF]

Journal of Bacteriology, 1996
Bacteria in a nonfimbriate phase because of continuous aeration of liquid cultures produce FimA in amounts similar to those produced by fimbriate bacteria. However, relatively low FimA production was observed in nonfimbriate-phase cultures obtained by growth on solid media or by anaerobic incubation.
S, Clegg, L S, Hancox, K S, Yeh
openaire   +2 more sources

Detection of Porphyromonas gingivalis fimA Type I Genotype in Gingivitis by Real-Time PCR–A Pilot Study [PDF]

Journal of Clinical and Diagnostic Research, 2016
Introduction: Published literature till date reveals a high prevalence of Porphyromonas gingivalis fimA type I genotype among healthy subjects. Quite a few studies have reported its prevalence also in periodontitis patients. Nevertheless incidence of
Mahalakshmi Krishnan, Padma Krishnan, S.C. Chandrasekaran   +2 more
doaj   +1 more source

Effects of Porphyromonas gingivalis infection with different fimA genotypes on the secretion of IL⁃1β, IL⁃6, and TNF⁃α by human umbilical vein endothelial cells

口腔疾病防治, 2019
Objective To study the effects of Porphyromonas gingivalis (P. g) infection with I, II and IV fimA genotypes on the expression of IL⁃ 1beta, IL⁃6 and TNF⁃alpha in human umbilical vein endothelial cells (HUVECs).
CAI Shuyu, LIN Xiaoyue, LEI Jin, GE Song
doaj   +1 more source

Characterization of FimA inPorphyromonas gingivalisgenotype IV [PDF]

FEMS Immunology & Medical Microbiology, 2012
It has been reported that a large majority of periodontitis patients carry organisms with either type II or IV-fimA, while type I is the most prevalent fimA genotype among Porphyromonas gingivalis-positive healthy adults. Here we report characterization of recombinant fimbrial protein (rFimA) produced in Escherichia coli from genotype IV-fimA.
Young-Suk, Choi, Ji-Hoi, Moon, Jae-Hong, Park, Jin-Yong, Lee   +3 more
openaire   +2 more sources

Sequence analyses of fimbriae subunit FimA proteins on Actinomyces naeslundii genospecies 1 and 2 and Actinomyces odontolyticus with variant carbohydrate binding specificities

BMC Microbiology, 2006
Background Actinomyces naeslundii genospecies 1 and 2 express type-2 fimbriae (FimA subunit polymers) with variant Galβ binding specificities and Actinomyces odontolyticus a sialic acid specificity to colonize different oral surfaces.
Persson Karina, Birve Anna, Öhman Ulla, Hallberg Kristina, Drobni Mirva, Johansson Ingegerd, Strömberg Nicklas   +6 more
doaj   +1 more source

Distribution of Porphyromonas gingivalis fimA and mfa1 fimbrial genotypes in subgingival plaques [PDF]

PeerJ, 2018
Background Strains of periodontal disease-associated bacterium Porphyromonas gingivalis have different pathogenicity, which can be attributed to clonal genetic diversity. P.
Keiji Nagano, Yoshiaki Hasegawa, Yura Iijima, Takeshi Kikuchi, Akio Mitani   +4 more
doaj   +2 more sources

Transcriptional organization of thePorphyromonas gingivalis fimAlocus [PDF]

FEMS Microbiology Letters, 2007
Two different transcriptional start sites, as well as promoter regions and translational starts, have been proposed for the fimA gene encoding a long fimbriae subunit protein of Porphyromonas gingivalis. In this study, the fimA promoter regions and organization of the fimA operon were characterized. The two putative promoter regions for fimA were fused
Yoonsuk, Park, Hua, Xie, Richard J, Lamont   +2 more
openaire   +2 more sources

Distribución de los genotipos de fimA en cepas de Porphyromonas gingivalis aisladas de placas subgingivales y de sangre durante bacteriemias

Biomédica: revista del Instituto Nacional de Salud, 2009
Introducción. Porphyromonas gingivalis es el principal agente etiológico de la periodontitis. El gen fimA ha sido relacionado con la virulencia del microorganismo, lo cual sugiere la participación de dicho gen en la capacidad del microorganismo para ...
Martine Bonnaure-Mallet, Paula Juliana Pérez-Chaparro, Patrice Gracieux, Vincent Meuric, Zohreh Tamanai-Shacoori, Jaime Eduardo Castellanos   +5 more
doaj   +1 more source