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Unlabelled: Two-component systems (TCS) enable bacteria to sense and respond to environmental signals, facilitating rapid adaptation. , a key oral pathobiont, employs the CarSR TCS to modulate coaggregation with various Gram-positive partners by regulating the expression of , encoding a surface adhesion protein, as revealed by RNA-Seq analysis. However, the direct regulation of the -containing operon ( ) by the response regulator CarR, the broader CarR regulon, and the signals sensed by this system remain unclear.
View Article and Find Full Text PDFAngiogenesis, a key point in the association of gut microbiota and its metabolites with disease.
Eur J Med Res
December 2024
Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China.
The gut microbiota is a complex and dynamic ecosystem that plays a crucial role in human health and disease, including obesity, diabetes, cardiovascular diseases, neurodegenerative diseases, inflammatory bowel disease, and cancer. Chronic inflammation is a common feature of these diseases and is closely related to angiogenesis (the process of forming new blood vessels), which is often dysregulated in pathological conditions. Inflammation potentially acts as a central mediator.
View Article and Find Full Text PDFEvaluation of leukocyte-platelet rich fibrin as an antibiotic slow-release biological device in the treatment of moderate periodontitis: a randomized controlled clinical trial.
BMC Oral Health
December 2024
Department of Microbiology, Medical Research Institute, Alexandria University, Azarita, Egypt.
Background: Periodontitis is a chronic inflammatory disease caused by the accumulation of biofilm. Antimicrobials have been used as adjuncts to non-surgical periodontal therapy. However, systemic antibiotics often require large dosages to achieve suitable concentrations at the disease site.
View Article and Find Full Text PDFProphylactic Phage Aerosols for Nosocomial Infection Control in an Extracorporeal Membrane Oxygenation Unit: A 4-Year Prospective Study of Temporospatially Designed Phage Cocktails.
Int J Antimicrob Agents
December 2024
Department of Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 707, Section 3, Zhongyang Rd., Hualien, Taiwan; Department of Surgery, School of Medicine, Tzu Chi University, No. 701, Section 3, Zhongyang Rd., Hualien, Taiwan. Electronic address:
Phage-based decontamination has rarely been explored in real-world settings, particularly in the environments of patients undergoing extracorporeal membrane oxygenation (ECMO). This four-year prospective study aimed to evaluate the effectiveness of aerosolized phage cocktails tailored to combat target antibiotic-resistant species of Acinetobacter baumannii, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Stenotrophomonas maltophilia. The decontamination procedure with phage aerosols was proactively implemented before the admission of ECMO patients based on a thorough analysis of phage typing results from bacterial species isolated from prospective patient areas during the preceding two months.
View Article and Find Full Text PDFSilent signals: how -acyl homoserine lactones drive oral microbial behaviour and health outcomes.
Front Oral Health
December 2024
Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong SAR, China.
Background: -acyl homoserine lactones (AHLs) are small signalling molecules predominantly secreted in Gram-negative bacteria.
Objective: The aim is to provide a comprehensive overview of AHLs in oral health.
Methods: Two independent researchers conducted a systematic search of English language publications up to 30 June 2024 in PubMed, Scopus and Web of Science.
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