Document Detail


Synergistic antimicrobial activity by combining an allylamine with benzoyl peroxide with expanded coverage against yeast and bacterial species.
MedLine Citation:
PMID:  16433807     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Dermatophyte infections can be polymicrobial. Topical antifungal therapies offer limited coverage of yeasts and Gram-positive and Gram-negative bacteria. Moreover, the increased usage of these topical antimicrobial agents has resulted in the development of resistant cases. Benzoyl peroxide (BP), used in concert with antimicrobial agents containing an accessible tertiary amine, has previously been shown to increase radical activity and biological effect. OBJECTIVES: To determine the applicability of using the tertiary amine terbinafine in concert with BP in dermatophyte and mixed skin infections by means of in vitro testing. METHODS: In this preliminary in vitro study, the effect of BP, alone and in combination with terbinafine, was tested against Candida albicans, Pseudomonas aeruginosa and Staphylococcus aureus isolates following a checkerboard modification of the National Committee for Clinical Laboratory Standards M27-A2 and M7-A6. The individual minimum inhibitory concentrations of terbinafine, BP, and the combination, were determined against each isolate. RESULTS: The combination of BP with terbinafine led to additive activities against the majority of Candida albicans isolates tested and additionally expanded the bacterial coverage of terbinafine. CONCLUSIONS: The combination of antifungal agents bearing a tertiary amine with BP may have benefit in polymicrobial infections, given its wider antimicrobial coverage. Further appreciation of this mechanism of catalysis of BP radical formation by certain antimicrobials and other tertiary amine-containing compounds may lead to the discovery of improved treatments for several dermatological conditions.
Authors:
C G Burkhart; C N Burkhart; N Isham
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The British journal of dermatology     Volume:  154     ISSN:  0007-0963     ISO Abbreviation:  Br. J. Dermatol.     Publication Date:  2006 Feb 
Date Detail:
Created Date:  2006-01-25     Completed Date:  2006-06-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0004041     Medline TA:  Br J Dermatol     Country:  England    
Other Details:
Languages:  eng     Pagination:  341-4     Citation Subset:  IM    
Affiliation:
Department of Dermatology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. cgbakb@aol.com
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MeSH Terms
Descriptor/Qualifier:
Antifungal Agents / pharmacology*
Benzoyl Peroxide / pharmacology*
Candida albicans / drug effects*
Drug Evaluation, Preclinical / methods
Drug Synergism
Drug Therapy, Combination
Humans
Microbial Sensitivity Tests
Naphthalenes / pharmacology*
Pseudomonas aeruginosa / drug effects
Staphylococcus aureus / drug effects
Chemical
Reg. No./Substance:
0/Antifungal Agents; 0/Naphthalenes; 91161-71-6/terbinafine; 94-36-0/Benzoyl Peroxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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