SciELO - Scientific Electronic Library Online

 
vol.11 número2Enzimas salivales y enfermedad periodontalTreatment of oral lichen planus with photodynamic therapy mediated methylene blue: A case report índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


Medicina Oral, Patología Oral y Cirugía Bucal (Internet)

versión On-line ISSN 1698-6946

Resumen

AZCURRA, Ana Isabel et al. Effect of the high molecular weight chitosan and sodium alginate on Candida albicans hydrophobicity and adhesion to cells. Med. oral patol. oral cir.bucal (Internet) [online]. 2006, vol.11, n.2, pp.120-125. ISSN 1698-6946.

The aim of the present paper is to evaluate the effect of the high molecular weight chitosan (HMWC) and of sodium alginate (NaAL) on surface hydrophobicity of Candida albicans and on adhesion of the yeast to epithelial cells and fibroblasts of different proceeding. For this study, a collection strain and seven isolates of C. albicans from saliva (patients with denture stomatitis) were grown in Sabouraud glucose agar supplemented with HMWC or NaAL or in absence of them (control). Hydrophobicity was determined by adhesion to hydrocarbons method using two organic media (xylene and chloroform). For adhesion experiments, aqueous suspensions of yeasts were contacted with solutions of biopolymers and different cells (rat and human fibroblasts and epithelial cells Hep-2). The quantification of adhesion was made by optical microscopy. Results: a decrease in hydrophobicity was observed in the presence of HMWC (44%) and of NaAL (82%) when chloroform was employed as organic medium, meanwhile the decreases were of 30% with HMWC and 19% with NaAL in the presence of xylene. Adhesion of C. albicans to epithelial cells and human fibroblasts decreased significantly with both biopolymers. In the case of rat fibroblasts, a decrease was observed only with NaAL. None of experiments showed significant differences associated to fibroblast type. Conclusions: biopolymers showed effectiveness in reducing hydrophobicity and adhesion of C. albicans to cells, which are important virulence factors related to colonization of the soft tissues of host or acrylic surfaces present in the oral system.

Palabras clave : Candida albicans; chitosan; alginate; adhesion; hydrophobicity.

        · resumen en Español     · texto en Español | Inglés     · Español ( pdf ) | Inglés ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons