Investigating the biological properties of carbohydrate derived fulvic acid (CHD-FA) as a potential novel therapy for the management of oral biofilm infections. (original) (raw)
Sherry, Leighann 
ORCID: https://orcid.org/0000-0002-0493-6135, Millhouse, Emma, Lappin, David F, Murray, Colin, Culshaw, Shauna ORCID: https://orcid.org/0000-0002-9653-5629, Nile, Christopher J ORCID: https://orcid.org/0000-0001-8218-2167 and Ramage, Gordon ORCID: https://orcid.org/0000-0002-0932-3514(2013) Investigating the biological properties of carbohydrate derived fulvic acid (CHD-FA) as a potential novel therapy for the management of oral biofilm infections.BMC Oral Health, 13, p. 47. (doi: 10.1186/1472-6831-13-47)
Publisher's URL: http://dx.doi.org/10.1186/1472-6831-13-47
Abstract
Background: A number of oral diseases, including periodontitis, derive from microbial biofilms and are associated with increased antimicrobial resistance. Despite the widespread use of mouthwashes being used as adjunctive measures to control these biofilms, their prolonged use is not recommended due to various side effects. Therefore, alternative broad-spectrum antimicrobials that minimise these effects are highly sought after. Carbohydrate derived fulvic acid (CHD-FA) is an organic acid which has previously demonstrated to be microbiocidal against Candida albicans biofilms, therefore, the aims of this study were to evaluate the antibacterial activity of CHD-FA against orally derived biofilms and to investigate adjunctive biological effects.
Methods: Minimum inhibitory concentrations were evaluated for CHD-FA and chlorhexidine (CHX) against a range of oral bacteria using standardised microdilution testing for planktonic and sessile. Scanning electron microscopy was also employed to visualise changes in oral biofilms after antimicrobial treatment. Cytotoxicity of these compounds was assessed against oral epithelial cells, and the effect of CHD-FA on host inflammatory markers was assessed by measuring mRNA and protein expression. Results: CHD-FA was highly active against all of the oral bacteria tested, including Porphyromonas gingivalis, with a sessile minimum inhibitory concentration of 0.5%. This concentration was shown to kill multi-species biofilms by approximately 90%, levels comparable to that of chlorhexidine (CHX). In a mammalian cell culture model, pretreatment of epithelial cells with buffered CHD-FA was shown to significantly down-regulate key inflammatory mediators, including interleukin-8 (IL-8), after stimulation with a multi-species biofilm. Conclusions: Overall, CHD-FA was shown to possess broad-spectrum antibacterial activity, with a supplementary function of being able to down-regulate inflammation. These properties offer an attractive spectrum of function from a naturally derived compound, which could be used as an alternative topical treatment strategy for oral biofilm diseases. Further studies in vitro and in vivo are required to determine the precise mechanism by which CHD-FA modulates the host immune response.| Item Type: | Articles |
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| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Culshaw, Professor Shauna and Murray, Prof Colin and Nile, Dr Christopher and Sherry, Dr Leighann and Lappin, Dr David and Ramage, Professor Gordon |
| Authors: | Sherry, L., Millhouse, E., Lappin, D. F., Murray, C., Culshaw, S., Nile, C. J., and Ramage, G. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Dental School |
| Journal Name: | BMC Oral Health |
| Publisher: | BioMed Central |
| ISSN: | 1472-6831 |
| ISSN (Online): | 1472-6831 |
| Copyright Holders: | Copyright © 2013 The Authors |
| First Published: | First published in BMC Oral Health 13:47 |
| Publisher Policy: | Reproduced under a Creative Commons License |
| Related URLs: | PubMed |
University Staff: Request a correction | Enlighten Editors: Update this record
Deposit and Record Details
| ID Code: | 94902 |
|---|---|
| Depositing User: | Ms Mary Anne Meyering |
| Datestamp: | 08 Jul 2014 13:21 |
| Last Modified: | 02 May 2025 02:31 |
| Date of first online publication: | September 2013 |
| Date Deposited: | 15 December 2015 |