نتایج جستجو برای: biofilm destruction

تعداد نتایج: 60033  

2016
James M Rynerson Henry D Perry

For many years, blepharitis and dry eye disease have been thought to be two distinct diseases, and evaporative dry eye distinct from aqueous insufficiency. In this treatise, we propose a new way of looking at dry eye, both evaporative and insufficiency, as the natural sequelae of decades of chronic blepharitis. Dry eye is simply the late form and late manifestation of one disease, blepharitis. ...

Journal: :Vestnik Vitebskogo gosudarstvennogo medicinskogo universiteta 2021

The problem of prevention and treatment infectious diseases in practical health care is one the most difficult, unsolved priority ones. At same time, fact biofilm formation by microorganisms-causative agents has already been proved, which leads to an increase resistance pathogens infectious-inflammatory antibacterial drugs, chronization process, atypical course disease. results numerous studies...

Journal: :Journal 2007
Philippe Bidault Fatiha Chandad Daniel Grenier

Periodontitis is characterized by a general inflammation of the tooth-supporting tissues, which leads to apical migration of the junctional epithelium along the root surface and progressive destruction of the periodontal ligament and the alveolar bone. Although the bacteria present within the subgingival dental biofilm constitute the primary etiologic agents of periodontitis, the host"s immune ...

Objective(s): Pseudomonas aeruginosais a Gram-negative and aerobic rod bacterium that displays mucoid and non-mucoid phenotype. Mucoid strains secrete alginate, which is the main agent of biofilms in chronic P. aeruginosa infections, show high resistance to antibiotics; consequently, the biological disruption of mucoid P. aeruginosa biofilms is an attractive area of study for researchers. Algin...

2018
Joanna Mystkowska Katarzyna Niemirowicz-Laskowska Dawid Łysik Grażyna Tokajuk Jan R Dąbrowski Robert Bucki

Metallic biomaterials in the oral cavity are exposed to many factors such as saliva, bacterial microflora, food, temperature fluctuations, and mechanical forces. Extreme conditions present in the oral cavity affect biomaterial exploitation and significantly reduce its biofunctionality, limiting the time of exploitation stability. We mainly refer to friction, corrosion, and biocorrosion processe...

Journal: :International microbiology : the official journal of the Spanish Society for Microbiology 2012
Cynthia L Sheffield Tawni L Crippen Toni L Poole Ross C Beier

The aim of this work was to determine the destructive activity of dextranase, lactoferrin, and lysozyme, against single species biofilms composed of either Klebsiella pneumoniae subsp. pneumoniae or Escherichia coli using the MBEC Assay. Luminescence measurements based on quantitation of the ATP present were used to determine the amount of biofilm elimination and correlated with quantity of liv...

Journal: :Antimicrobial agents and chemotherapy 2011
George R A Cathcart Derek Quinn Brett Greer Pat Harriott John F Lynas Brendan F Gilmore Brian Walker

Pseudomonas elastase (LasB), a metalloprotease virulence factor, is known to play a pivotal role in pseudomonal infection. LasB is secreted at the site of infection, where it exerts a proteolytic action that spans from broad tissue destruction to subtle action on components of the host immune system. The former enhances invasiveness by liberating nutrients for continued growth, while the latter...

2013
Georgios N. Belibasakis Thomas Thurnheer Nagihan Bostanci

Periodontitis is an infectious inflammatory disease that results in the destruction of the tooth-supporting (periodontal) tissues. The Gram-negative anaerobic species Porphyromonas gingivalis, Tannerella forsythia and Treponema denticola, (also known as the "red complex" species) are highly associated with subgingival biofilms at periodontitis-affected sites. A major chemokine produced by the g...

2014
James Liao Jabrane Azelmat Lei Zhao Masami Yoshioka Daisuke Hinode Daniel Grenier

Periodontal diseases, which are inflammatory diseases of bacterial origin affecting the tooth-supporting tissues, are characterized by inflammation and destruction of gingival connective tissue and alveolar bone, and may lead to tooth loss. The aim of the study was to investigate Rokumigan, a Kampo Japanese traditional medicine made of six different plants, for its capacity to prevent biofilm f...

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