Prevention of biofilm formation by dairy products and N-Acetylcysteine on voice prostheses in an artificial throat

Autor: Ietse Stokroos, Leonora Q. Schwandt, Henk J. Busscher, Henny C. van der Mei, Ranny van Weissenbruch, Frans W. J. Albers
Přispěvatelé: Faculteit Medische Wetenschappen/UMCG, Man, Biomaterials and Microbes (MBM), Personalized Healthcare Technology (PHT)
Rok vydání: 2004
Předmět:
Zdroj: Acta oto-Laryngologica, 124(6), 726-731
ISSN: 1651-2251
0001-6489
DOI: 10.1080/00016480410022516
Popis: Objective - To evaluate the preventive effect of buttermilk, Yakult Light fermented milk drink and N-acetylcysteine on biofilm formation on voice prostheses in vitro.Material and Methods - Groningen button and Provox(R) 2 voice prostheses were inoculated with a mixture of bacteria and yeasts isolated from previously explanted Groningen button voice prostheses. After 5 h, separate throats were flushed with buttermilk, Yakult Light fermented milk drink, N-acetylcysteine or phosphate-buffered saline, which served as a control. After 7 days, the microflora on each voice prosthesis was determined.Results - On Groningen button voice prostheses, buttermilk, Yakult Light fermented milk drink and N-acetylcysteine all reduced the amount of both bacteria and yeasts. On Provox(R)2 voice prostheses, buttermilk, Yakult Light fermented milk drink and N-acetylcysteine reduced the amount of bacteria but, conversely, increased the amount of yeasts.Conclusion - These in vitro experiments demonstrate that biofilm formation on voice prostheses is reduced in an artificial throat by the use of buttermilk, Yakult Light fermented milk drink and N-acetylcysteine. However, the structural differences between the type of voice prostheses may influence the ultimate effects.
Databáze: OpenAIRE