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A gut commensal protozoan determines respiratory disease outcomes by shaping pulmonary immunity.
Cell
December 2024
Department of Immunology, University of Toronto, Toronto, ON, Canada. Electronic address:
The underlying mechanisms used by the intestinal microbiota to shape disease outcomes of the host are poorly understood. Here, we show that the gut commensal protozoan, Tritrichomonas musculis (T.mu), remotely shapes the lung immune landscape to facilitate perivascular shielding of the airways by eosinophils.
View Article and Find Full Text PDFAirway interfere with and infection and express secreted factors selectively targeting each pathogen.
Infect Immun
December 2024
Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado, USA.
The composition of the respiratory track microbiome is a notable predictor of infection-related morbidities and mortalities among both adults and children. Species of which are largely present as commensals in the upper airway and other body sites, are associated with lower colonization rates of opportunistic bacterial pathogens such as and . In this study, -mediated protective effects against and were directly compared using and models.
View Article and Find Full Text PDFBile acids in the lower airways is associated with airway microbiota changes in chronic obstructive pulmonary disease: an observational study.
BMJ Open Respir Res
December 2024
Wal-yan Respiratory Research Centre, The Kids Research Institute Australia, Nedlands, Western Australia, Australia
Background: Chronic obstructive pulmonary disease (COPD) is a complex disorder with a high degree of interindividual variability. Gastrointestinal dysfunction is common in patients with COPD and has been proposed to influence the clinical progression of the disease. Using the presence of bile acid(s) (BA) in bronchoalveolar lavage (BAL) fluid as a marker of gastric aspiration, we evaluated the relationships between BAs, clinical outcomes and bacterial lung colonisation.
View Article and Find Full Text PDFThe bacterial burden of worn face masks-observational research and literature review.
Front Public Health
December 2024
Department of Evolutionary Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Gdansk, Poland.
Introduction: Facemasks were widely mandated during the recent SARS-CoV-2 pandemic. Especially the use by the general population is associated with a higher risk of improper handling of the mask and contamination and potential adverse microbiological consequences.
Methods: We investigated and quantified bacterial accumulation in facemasks used by the general population, using 16S rRNA (Sanger Sequencing), culture and biochemical analysis along with Rose Bengal staining.
Complements the Portfolio of Simple Animal Models Used for Marine Toxicological Studies.
Int J Mol Sci
December 2024
Zoological Institute, Molecular Physiology, Kiel University, Olshausenstrasse 40, 24098 Kiel, Germany.
is gaining increasing recognition as a model organism for toxicological studies in marine ecosystems and expands the range of simple animal models currently used. Water pollution caused by human activities not only endangers environmental integrity but also affects human health, underlining the need to monitor water pollution effectively. This review describes the distinctive characteristics of , including its rapid reproductive cycle, increased sensitivity to environmental variability, and remarkable regenerative abilities.
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