نتایج جستجو برای: porphyromonas

تعداد نتایج: 3941  

2017
Ayako Kato Kenichi Imai Hiroki Sato Keinichi Imai

We have considered each point raised by the reviewers and have revised the manuscript accordingly. A list of the changes, addressing the reviewer’s points, can be found below. (We highlighted the changes within the document by using red colored text). Of note, some of the points made would require additional experiments, which are currently being addressed in ongoing studies. Since their inclus...

Journal: :Infection and immunity 2001
H Yagishita Y Kumagai K Konishi Y Takahashi T Aoba M Yoshikawa

To elucidate the role of dipeptidyl aminopeptidase IV (DPPIV) in the virulence of Porphyromonas gingivalis, mice were infected with either a wild-type strain or a DPPIV-deficient mutant using an abscess model. Histopathological analysis of the resulting lesions indicated that DPPIV participates in virulence through the destruction of connective tissue and the less effective mobilization of infl...

2013
Wen Wei Lu-Wen Ning Yuan-Nong Ye Feng-Biao Guo

Integrative genomics predictors, which score highly in predicting bacterial essential genes, would be unfeasible in most species because the data sources are limited. We developed a universal approach and tool designated Geptop, based on orthology and phylogeny, to offer gene essentiality annotations. In a series of tests, our Geptop method yielded higher area under curve (AUC) scores in the re...

Journal: :International endodontic journal 2006
R C Jacinto B P F A Gomes H N Shah C C Ferraz A A Zaia F J Souza-Filho

AIM To investigate the prevalence of Porphyromonas gingivalis in root canals of infected teeth with periapical abscesses and to investigate the antimicrobial susceptibility of this species to some frequently prescribed antibiotics. METHODOLOGY Samples were obtained from 70 root canals of abscessed teeth. Microbial sampling, isolation and bacterial identification were accomplished using approp...

Journal: :Archives of oral biology 2012
Alina Kunnen Daphne C Dekker Maria G van Pampus Hermie J M Harmsen Jan G Aarnoudse Frank Abbas Marijke M Faas

OBJECTIVE Although the exact reason is not known, encapsulated gram-negative Porphyromonas gingivalis strains are more virulent than non-encapsulated strains. Since difference in virulence properties may be due to difference in cytokine production following recognition of the bacteria or their products by the host inflammatory cells, we compared cytokine production following stimulation with ba...

2016
Benjamin A. Fisher Alison J. Cartwright Anne-Marie Quirke Paola de Pablo Dora Romaguera Salvatore Panico Amalia Mattiello Diana Gavrila Carmen Navarro Carlotta Sacerdote Paolo Vineis Rosario Tumino David F. Lappin Danae Apatzidou Shauna Culshaw Jan Potempa Dominique S. Michaud Elio Riboli Patrick J. Venables

Author details Rheumatology Research Group, Centre for Translational Inflammation Research, Queen Elizabeth Hospital Birmingham, Birmingham B15 2WB, UK. Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK. School of Public Health, Imperial College London, London, UK. CIBER-OBN (Fisiopatología de la Obesidad y Nutrición), Madrid, Spain. Department of Clinical and Experimental Med...

2010
Seicho Makihira Takahiro Shuto Hiroki Nikawa Keishi Okamoto Yuichi Mine Yuko Takamoto Masaru Ohara Koichiro Tsuji

The objective of this study was to evaluate the effect of titanium immobilized with a cationic antimicrobial peptide (JH8194) derived from histatin on the biofilm formation of Porphyromonas gingivalis and differentiation of osteoblastic cells (MC3T3-E1). The titanium specimens (Ti) were immobilized with JH8194, according to the method previously described. The colonization of P. gingivalis on J...

Journal: :FEMS microbiology letters 1991
Y Murakami S Shizukuishi A Tsunemitsu K Nakashima Y Kato S Aimoto

Porphyromonas gingivalis 381 cells were incubated with 125I-histidine-rich polypeptide (histatin) 5 in the presence or absence of unlabeled histatin 5, to evaluate the histatin-binding capacity of the cells. The binding of histatin 5 was rapid, reversible, saturable and specific. The number of histatin 5-binding sites per cell was 3,600, and the dissociation constant (Kd) was in the order of 10...

2010
Mustafa Zortuk Servet Kesim Esma Kaya Hatice Özbilge Kerem Kiliç Özlem Çölgeçen

BACKGROUND When provisional restorations are worn for long term period, the adhesion of bacteria becomes a primary factor in the development of periodontal diseases. The aims of this study were to evaluate the surface roughness and bacterial adhesion of four different provisional fixed prosthodon-tic materials. METHODS Ten cylindrical specimens were prepared from bis-acrylic composites (PreVI...

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