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Naslov:Headspace volatile organic compounds from bacteria implicated in ventilator-associated pneumonia analysed by TD-GC/MS
Avtorji:ID Lawal, Oluwasola, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom (Avtor)
ID Muhamadali, Howbeer, School of Chemistry, Manchester Institute of Biotechnology, University of Manchester, Manchester, United Kingdom (Avtor)
ID Ahmed, Waqar M, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom (Avtor)
ID White, Iain R., School of Chemistry, Manchester Institute of Biotechnology, University of Manchester, Manchester, United Kingdom (Avtor)
ID Nijsen, Tamara M E, Philips Research, Royal Philips B.V., Eindhoven, Netherlands (Avtor)
ID Goodacre, Roy, School of Chemistry, Manchester Institute of Biotechnology, University of Manchester, Manchester, United Kingdom (Avtor)
ID Fowler, Stephen J., Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom (Avtor), et al.
Datoteke: Gradivo nima datotek. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:Ventilator-associated pneumonia (VAP) is a healthcare-acquired infection arising from the invasion of the lower respiratory tract by opportunistic pathogens in ventilated patients. The current method of diagnosis requires the culture of an airway sample such as bronchoalveolar lavage, which is invasive to obtain and may take up to seven days to identify a causal pathogen, or indeed rule out infection. While awaiting results, patients are administered empirical antibiotics; risks of this approach include lack of effect on the causal pathogen, contribution to the development of antibiotic resistance and downstream effects such as increased length of intensive care stay, cost, morbidity and mortality. Specific biomarkers which could identify causal pathogens in a timely manner are needed as they would allow judicious use of the most appropriate antimicrobial therapy. Volatile organic compound (VOC) analysis in exhaled breath is proposed as an alternative due to its non-invasive nature and its potential to provide rapid diagnosis at the patient's bedside. VOCs in exhaled breath originate from exogenous, endogenous, as well as microbial sources. To identify potential markers, VAP-associated pathogens Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Staphylococcus aureus were cultured in both artificial sputum medium and nutrient broth, and their headspaces were sampled and analysed for VOCs. Previously reported volatile markers were identified in this study, including indole and 1-undecene, alongside compounds that are novel to this investigation, cyclopentanone and 1-hexanol. We further investigated media components (substrates) to identify those that are essential for indole and cyclopentanone production, with potential implications for understanding microbial metabolism in the lung.
Ključne besede:bacteria, exhaled breath, infection, ventilator-associated pneumonia, volatile organic compounds
Leto izida:2018
Št. strani:11
Številčenje:2, 12
PID:20.500.12556/RUNG-4922 Novo okno
COBISS.SI-ID:5418747 Novo okno
DOI:10.1088/1752-7163/aa8efc Novo okno
NUK URN:URN:SI:UNG:REP:TTXG02BJ
Datum objave v RUNG:18.07.2019
Število ogledov:3191
Število prenosov:0
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:Journal of Breath Research
Skrajšan naslov:JBR
Založnik:Institute of Physics Publishing
ISSN:1752-7155

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