Intricate interactions among commensal bacteria, dietary substrates and immune responses are central to defining microbiome community composition, which plays a key role in preventing enteric pathogen infection, a dynamic phenomenon referred to as colonisation resistance. However, the impact of diet on sculpting microbiota membership, and ultimately colonisation resistance has been overlooked. Furthermore, pathogens have evolved strategies to evade colonisation resistance and outcompete commensal microbiota by using unique nutrient utilisation pathways, by exploiting microbial metabolites as nutrient sources or by environmental cues to induce virulence gene expression. In this review, we will discuss the interplay between diet, microbiota and their associated metabolites, and how these can contribute to or preclude pathogen survival.
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http://dx.doi.org/10.20517/mrr.2021.10 | DOI Listing |
Antimicrob Resist Infect Control
December 2024
Division of Infectious Diseases and Infection Control, Hospital Epidemiology, University Hospital Basel, University Basel, Petersgraben 4, CH-4031, Basel, Switzerland.
While screening the rectal site and urine may be appropriate for detection of carbapenemase-producing Enterobacterales, respiratory samples, throat and wound swabs may increase the sensitivity of screening protocols when aiming to detect colonization with carbapenemase-producing non-fermenting bacteria. Our results support the need for tailoring screening recommendations according to the bacterial species targeted.
View Article and Find Full Text PDFIran J Microbiol
December 2024
Department of Parasitology and Mycology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
Background And Objectives: Airway fungal infection is a severe clinical problem, especially in patients with compromised immune functions. Here, we examined the distribution and antifungal susceptibility profiles of fungal agents isolated from respiratory tract of symptomatic patients hospitalized in pulmonary units.
Materials And Methods: This descriptive cross-sectional study took place from 2023 to 2024, involving 360 patients.
Front Microbiol
December 2024
West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China.
Background: Numerous studies have demonstrated that is closely associated with human health. These bacteria colonize the mucus layer of the gastrointestinal tract and utilize mucin as their sole source of carbon and nitrogen. spp.
View Article and Find Full Text PDFEnviron Res
December 2024
Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310021, P. R. China. Electronic address:
Molybdenum (Mo) acts as a crucial nutrient for plant development, yet excessive soil exposure can cause detrimental effects. Molybdenosis symptoms remain subtle in many plants, largely due to the safeguarding functions of soil organisms, the fundamental biological mechanisms lack clarity. In this study, we explored the potential mechanisms for amending Mo-exposed soils with soil microbe-arbuscular mycorrhizal fungi (AMF) and soil fauna, specifically earthworms, to enhance model plant-alfalfa growth resistance through soil nutrient turnover perspectives.
View Article and Find Full Text PDFIndian J Med Microbiol
December 2024
Government Medical College and Hospital, Chandigarh. Electronic address:
Background: Neonatal sepsis continues to be a leading cause of mortality among the NICU admitted neonates. The most common causative organisms have been proven to be hospital-acquired organisms.
Aims And Objectives: This study was planned with aim of understanding the pathological colonization of neonatal skin and associated risk factors as well as finding a possible correlation between blood culture isolates and neonatal skin colonizers and their antimicrobial resistance patterns.
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