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Cystic fibrosis microbiology: Advances in antimicrobial therapy.

Posted by on in 2015
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Waters V1Smyth A2.  J Cyst Fibros. 2015 Feb 28. pii: S1569-1993(15)00043-0. doi: 10.1016/j.jcf.2015.02.005. [Epub ahead of print]
1Division of Infectious Diseases, Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, Canada. Electronic address: Valerie.Waters@sickkids.ca.
2Division of Child Health, Obstetrics & Gynaecology, University of Nottingham, Department of Paediatrics, Nottingham Children's Hospital, Nottingham, UK. Electronic address: Alan.Smyth@nottingham.ac.uk.

Abstract

Much of the improvement in the survival of individuals with cystic fibrosis (CF) is due to advancements in antimicrobial treatments. New aerosolized antibiotic formulations have recently been introduced (such as inhaled aztreonam), and others are in development (inhaled levofloxacin and liposomal amikacin). Licensed dry powder formulations include tobramycin inhalation powder and dry powder colistimethate (available in Europe). Although inhaled antibiotics have the advantage of being able to deliver high intrapulmonary concentrations of drug, antimicrobial resistance can still develop and is a concern in CF. Antimicrobial resistance might be mitigated by using non-antibiotic treatments, antibiotic adjuvants, which have activity against bacteria. Examples include agents such as gallium, antimicrobial peptides and anti-biofilm compounds such as alginate oligosaccharides (OligoG) and garlic. Vaccination strategies and antibody therapy (IgY) against Pseudomonas aeruginosa have also been attempted to prevent initial infection with this organism in CF. Although aggressive and long-term use of antibiotics has been crucial in slowing lung function decline and improving survival in people with CF, it has added a significant burden of care and associated toxicities in these individuals. Careful surveillance and the use of preventative strategies for antibiotic related toxicity (such as nephrotoxicity and ototoxicity) are essential. Continued development of effective antimicrobial agents that can function in the conditions encountered in the CF lung, such as against bacterial biofilm growth and under anaerobic conditions, is needed.

Copyright © 2015 European Cystic Fibrosis Society. Published by Elsevier B.V. All rights reserved.

KEYWORDS:

Antimicrobials; Cystic fibrosis

PMID:
 
25737165
 
[PubMed - as supplied by publisher]
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