Results 81 to 90 of about 14,110 (240)

Tip-oriented adherence of Treponema denticola to fibronectin [PDF]

Infection and Immunity, 1990
The adherence of Treponema denticola to ligands on cell surfaces or in basement membranes of periodontal tissues might play an important role in its pathogenicity. A direct microscopic assay was used to examine the binding of T. denticola to fibronectin and other protein substrates adsorbed on plastic cover slips. All strains of T.
J R, Dawson, R P, Ellen
openaire   +2 more sources

Aging and periodontitis increase brain dissemination of oral bacteria

Journal of Periodontology, EarlyView.
Abstract Background The microbiome is a dynamic system that changes throughout life. Studies have revealed the relationship between periodontal disease and the oral microbiota; however, the impact of periodontal disease on the expression of senescence markers and on the inflammaging of the oral and systemic microbiome remains unclear.
Ozge Unlu, Tsute Chen, Nil Yakar, Zeliha Guney, Bruce Paster, Isabel Carreras, Alpaslan Dedeoglu, Alpdogan Kantarci   +7 more
wiley   +1 more source

Atypical chemoreceptor arrays accommodate high membrane curvature

Nature Communications, 2020
The main components of the prokaryotic chemotaxis system, chemoreceptors, organize into a hexagonal (P6 symmetry) extended array. Here authors use cryo-ET and report an alternative symmetry (P2) of the chemotaxis apparatus that emerges from a strict ...
Alise R. Muok, Davi R. Ortega, Kurni Kurniyati, Wen Yang, Zachary A. Maschmann, Adam Sidi Mabrouk, Chunhao Li, Brian R. Crane, Ariane Briegel   +8 more
doaj   +1 more source

Tomographic reconstruction of treponemal cytoplasmic filaments reveals novel bridging and anchoring components [PDF]

, 2003
An understanding of the involvement of bacterial cytoplasmic filaments in cell division requires the elucidation of the structural organization of those filamentous structures.
Barnard, Rita M., Izard, Jacques, Limberger, Ronald J., McEwen, Bruce F., Portuese, Thomas, Samsonoff, William A.   +5 more
core   +1 more source

Periodontitis during pregnancy: The effect on the gut microbiome and intestinal inflammation

Journal of Periodontology, EarlyView.
Abstract Background Periodontitis has been epidemiologically associated with adverse pregnancy outcomes, but causality remains difficult to establish in humans due to confounding factors. This study uses a controlled murine model to examine the effects of experimentally induced periodontitis on the composition of the gut microbiota and gastrointestinal
Richard Bright, Matthew G. Macowan, Keyuan Tian, Tracy Fitzsimmons, Rebecca L. Wilson, Claire T. Roberts, Claus T. Christophersen, Peter M. Bartold, Stephen P. Kidd, Peter S. Zilm   +9 more
wiley   +1 more source

A randomized clinical trial about presence of pathogenic microflora and risk of peri-implantitis: comparison of two different types of implant-abutment connections [PDF]

, 2017
OBJECTIVE: The aim of this in vivo study was to evaluate two different types of implant-abutment connections: screwed connection and cemented connection, analyzing peri-implant bacteria microflora as well as other clinical parameters.
De Angelis, Francesca, Di Carlo, Stefano, Mencio, Francesca, Papi, Piero, Pompa, Giorgio, Rosella, D.   +5 more
core  

The microbiome associated with equine periodontitis and oral health [PDF]

, 2016
Equine periodontal disease is a common and painful condition and its severe form, periodontitis, can lead to tooth loss. Its aetiopathogenesis remains poorly understood despite recent increased awareness of this disorder amongst the veterinary profession.
Bennett, David, Brandt, Bernd Willem, Buijs, Mark Johannes, Crielaard, Wim, Dixon, Padraic Martin, Kennedy, Rebekah, Lappin, David Francis, O’Donnell, Lindsay, Riggio, Marcello Pasquale, Zaura, Egija   +9 more
core   +8 more sources

Periodontal Status of Type 1 Diabetes Mellitus and Healthy Pregnant Women: A Case–Control Pilot Study

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Aims This cross‐sectional ‘case–control’ pilot study aimed to compare the size of periodontal wounds, periodontal status and total inflammatory burden between pregnant women with type 1 diabetes mellitus (T1DM) and non‐diabetic pregnant women. Methods Fifteen T1DM pregnant women and 15 healthy pregnant women were included. Clinical parameters (
M. Janc, M. Tomažič, M. Pirc, U. Skalerič, R. Schara   +4 more
wiley   +1 more source

Treponema denticola: patógeno en procesos periodontales y pulpares

Odontología Sanmarquina, 2012
En la etiología multifactorial de la enfermedad periodontal y procesos pulpares, el factor bacteriano tiene gran relevancia. En estos procesos se identifica una flora polimicrobiana en la que destaca Treponema denticola, una espiroqueta con múltiples ...
Donald Ramos Perfecto, Mario Julio Ávila Campos, Victor Levano Torres   +2 more
doaj   +1 more source

Metagenomic analysis reveals presence of Treponema denticola in a tissue biopsy of the Iceman. [PDF]

PLoS ONE, 2014
Ancient hominoid genome studies can be regarded by definition as metagenomic analyses since they represent a mixture of both hominoid and microbial sequences in an environment.
Frank Maixner, Anton Thomma, Giovanna Cipollini, Stefanie Widder, Thomas Rattei, Albert Zink   +5 more
doaj   +1 more source