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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
American Journal of Infection Control
Article . 2008 . Peer-reviewed
License: Elsevier TDM
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Benzyl alcohol and ethanol can enhance the pathogenic potential of clinical Staphylococcus epidermidis strains

Authors: Milisavljevic, V.; Tran, L.P.; Batmalle, C.; Bootsma, H.J.;

Benzyl alcohol and ethanol can enhance the pathogenic potential of clinical Staphylococcus epidermidis strains

Abstract

Staphylococcus epidermidis is the most frequent cause of health care-associated infections, particularly in neonates and patients with indwelling catheters. The pathogenesis of infections caused by this organism is associated with its ability to form biofilms. We hypothesized that alcohol used in skin disinfectants, as well as preservative in solutions administered through catheters, can enhance biofilm formation by S epidermidis.We performed polymerase chain reaction (PCR) analysis to investigate the prevalence of ica locus in a collection of 169 commensal and clinical S epidermidis strains. Using a microtiter plate assay, we examined the effect of ethanol and benzyl alcohol on biofilm production. Quantitative real-time reverse transcriptase PCR analysis evaluated quantitative changes in gene expression.We found that ica-positive but biofilm-negative or low-grade biofilm-positive S epidermidis strains displayed induction or increase in biofilm production after incubation in media supplemented with both ethanol and benzyl alcohol. The expression of the icaADBC operon was up-regulated in the presence of alcohol.Our results suggest that biofilm production and, therefore, the pathogen potential of S epidermidis can be induced by alcohol. Considering the routine use of alcohol-based skin disinfectants and benzyl alcohol-containing solutions in hospitals, the alcohol-inducible biofilm phenotype of S epidermidis has potentially profound clinical ramifications.

Country
Netherlands
Keywords

DNA, Bacterial, Ethanol, Virulence Factors, Gene Expression Profiling, Infant, Newborn, Staphylococcal Infections, Polymerase Chain Reaction, Anti-Bacterial Agents, N4i 4: Auto-immunity, transplantation and immunotherapy, Genes, Bacterial, Biofilms, Staphylococcus epidermidis, Humans, UMCN 4.1: Microbial pathogenesis and host defense, Benzyl Alcohol

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    29
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
29
Top 10%
Top 10%
Top 10%
Green