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Emergent Bacteria in Cystic Fibrosis : In Vitro Biofilm Formation and Resilience under Variable Oxygen Conditions
Joint Authors
Lopes, Susana P.
Azevedo, Nuno F.
Pereira, Maria Olivia
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-29
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Concurrent to conventional bacterial pathogens, unusual microbes are emerging from cystic fibrosis (CF) airways.
Nonetheless, little is known about the contribution of these newly microbes to the resilience of CF-associated biofilms, particularly under variable-oxygen concentrations that are known to occur in vivo in the mucus of CF patients.
Two CF-emergent bacterial species, Inquilinus limosus and Dolosigranulum pigrum, and the major pathogen Pseudomonas aeruginosa were studied in terms of biofilm development and antibiotic susceptibilities under in vitro atmospheres with different oxygen availabilities.
All species were able to develop in vitro biofilms under different oxygen-available environments, with D.
pigrum accumulating high amounts of biomass and respiratory activities.
When established, biofilms were of difficult eradication, with antibiotics losing their effectiveness in comparison with the corresponding planktonic populations.
Surprisingly, biofilms of each emergent organism displayed multidrug resistance under aerobic environments, enduring even in low-oxygen atmospheres.
This study suggests a potential prospect on the impact of nonconventional organisms I.
limosus and D.
pigrum on CF lung infections, demonstrating capacity to adapt to biofilm mode of life under restricted-oxygen atmospheres resembling CF airways, which may ultimately endanger the efficacy of currently used antibiotic regimens.
American Psychological Association (APA)
Lopes, Susana P.& Azevedo, Nuno F.& Pereira, Maria Olivia. 2014. Emergent Bacteria in Cystic Fibrosis : In Vitro Biofilm Formation and Resilience under Variable Oxygen Conditions. BioMed Research International،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-489755
Modern Language Association (MLA)
Lopes, Susana P.…[et al.]. Emergent Bacteria in Cystic Fibrosis : In Vitro Biofilm Formation and Resilience under Variable Oxygen Conditions. BioMed Research International No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-489755
American Medical Association (AMA)
Lopes, Susana P.& Azevedo, Nuno F.& Pereira, Maria Olivia. Emergent Bacteria in Cystic Fibrosis : In Vitro Biofilm Formation and Resilience under Variable Oxygen Conditions. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-489755
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-489755