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Regulatory mechanisms of exopolysaccharide synthesis and biofilm formation in Streptococcus mutans
J Oral Microbiol. 2023 Jun 18;15(1):2225257. doi: 10.1080/20002297.2023.2225257. eCollection 2023.ABSTRACTBACKGROUND: Dental caries is a chronic, multifactorial and biofilm-mediated oral bacterial infection affecting almost every age group and every geographical region. Streptococcus mutans is considered an important pathogen responsible for the initiation and development of dental caries. It produces exopolysaccharides in situ to promote the colonization of cariogenic bacteria and coordinate dental biofilm development.OBJECTIVE: The understanding of the regulatory mechanism of S. mutans biofilm formation can provide a the...
Source: Journal of Oral Microbiology - June 22, 2023 Category: Microbiology Authors: Ting Zheng Meiling Jing Tao Gong Jiangchuan Yan Xiaowan Wang Mai Xu Xuedong Zhou Jumei Zeng Yuqing Li Source Type: research

First water safety plan approach applied to a Dental Clinic complex: identification of new risk factors associated with Legionella and P. aeruginosa contamination, using a novel sampling, maintenance and management program
J Oral Microbiol. 2023 Jun 16;15(1):2223477. doi: 10.1080/20002297.2023.2223477. eCollection 2023.ABSTRACTDental unit waterlines (DUWLs) represent a complex environment able to promote microbial contamination, due to functional, mechanical and practical risk factors. According to a water safety plan approach, the main goal is to preserve the health of dentists, dental staff and patients. The aim of this study is to develop a DUWLs water safety plan that is able to support correct and effective maintenance and disinfection procedures. Three different water systems serve 60 dental chairs: (i) water that comes directly from m...
Source: Journal of Oral Microbiology - June 22, 2023 Category: Microbiology Authors: Federica Marino Marta Mazzotta Maria Rosaria Pascale Carlo Derelitto Luna Girolamini Sandra Cristino Source Type: research

 Fusobacterium nucleatum dissemination by neutrophils
J Oral Microbiol. 2023 Jun 4;15(1):2217067. doi: 10.1080/20002297.2023.2217067. eCollection 2023.ABSTRACTRecent studies uncovered that Fusobacterium nucleatum (Fn), a common, opportunistic bacterium in the oral cavity, is associated with a growing number of systemic diseases, ranging from colon cancer to Alzheimer's disease. However, the pathological mechanisms responsible for this association are still poorly understood. Here, we leverage recent technological advances to study the interactions between Fn and neutrophils. We show that Fn survives within human neutrophils after phagocytosis. Using in vitro microfluidic devi...
Source: Journal of Oral Microbiology - June 7, 2023 Category: Microbiology Authors: Felix Ellett Nazli I Kacamak Carla R Alvarez Eduardo H S Oliveira Hatice Hasturk Bruce J Paster Alpdogan Kantarci Daniel Irimia Source Type: research