نتایج جستجو برای: periodontopathogen

تعداد نتایج: 75  

ژورنال: مجله دندانپزشکی 2012
اشراقی, سید سعید, امین هراتی, فرزانه, رحیمی فروشانی, عباس, سالاری, محمدحسین, علیرمضانی, امیر, قورچیان, صدیقه, پاکباز, زهرا, پورمند, محمدرضا, کدخدا, زینب,

Background and Aims: Periodontitis is one of the most common oral diseases with the various incidence rates in different populations. A number of bacteria are considered as the major etiologic agents of periodontitis. The aim of the present study was to determine the prevalence of periodontopathogen bacteria in patients using both PCR and culture techniques.Materials and Methods: In this study,...

Journal: :Infection and immunity 1992
J Katz R M Leary D C Ward C C Harmon S M Michalek

In this study, we describe the time course and T-cell dependence of the serum antibody response to the periodontopathogen Porphyromonas (Bacteroides) gingivalis in an experimental rat model. Normal Fischer rats were challenged by a local injection of P. gingivalis (2 x 10(8) bacteria) into gingival tissue or by the administration of a similar number of bacteria by the intravenous (i.v.) route o...

Journal: :Infection and immunity 1997
F A Roberts G J Richardson S M Michalek

The mononuclear phagocyte plays an important role in the regulation of microbe-induced inflammation, in part through its ability to secrete mediators, particularly cytokines, in response to microorganisms and their products. To evaluate the effects of the microbial flora associated with chronic adult periodontitis on cytokine induction, lipopolysaccharide (LPS) from the periodontopathogen Porph...

Journal: :Infection and immunity 1998
A Amano S Shizukuishi H Horie S Kimura I Morisaki S Hamada

Porphyromonas gingivalis, a putative periodontopathogen, can bind to human saliva through its fimbriae. We previously found that salivary components from the submandibular and sublingual glands bind to P. gingivalis fimbriae and that acidic proline-rich protein (PRP) and statherin function as receptor molecules for fimbriae. In this study, we investigated the fimbria-binding components in parot...

2017
Pei-Hui Ding Richard P. Darveau Cun-Yu Wang Lijian Jin

Lipopolysaccharide (LPS)-binding protein (LBP) as an acute-phase protein plays a crucial role in innate host response to bacterial challenge. Our previous study shows that LBP expression in human gingiva is associated with periodontal status. Porphyromonas gingivalis is a keystone periodontopathogen, and its LPS with lipid A structural heterogeneity critically accounts for periodontal pathogene...

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