Publications by authors named "S T Dorronsoro"

Unlabelled: The aim of this work is to evaluate the alterations of the oral ecosystem in symptomatic children with celiac disease (CD), to establish a particular pattern of oral markers that can be used as presumptive diagnosis of CD.

Material & Methods: A sample of n=52 children with CD diagnosis according to the modified criteria of the European Society of Pediatric Gastroenterology and Nutrition (ESPGAN), 1990, was studied. A dental clinical evaluation of soft and hard tissues was performed.

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Adhesion of Candida albicans to acrylic of dental prostheses or to salivary macromolecules adsorbed on their surface is believed to be a critical event in the development of denture stomatitis. In previous studies our group has shown that adhesion of C. albicans germ tubes to polystyrene is decreased by saliva whereas C.

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Unlabelled: 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).

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The effect of high molecular weight chitosan (HMWCh) and sodium alginate (NaAL) on acid proteinase secretion of Candida albicans (one of culture collection and five isolates) was evaluated. The secretion of acid proteinase was induced in the presence and the absence of these polymers in different concentrations and their enzymatic activity was determined. HMWCh and NaAL significantly diminished the enzymatic activity (>76% for the collection strains and > 89% for the isolates, p < 0.

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We evaluated the in vitro capacity of high and low molecular weight chitosans (HMWCh and LMWCh) to inhibit the adherence of strains of S. mutans obtained from the American Type Culture Collection (ATCC,25175) to artificial saliva-coated hydroxiapatite beads. The effect of these biopolymers was assessed in terms of pH, ionic force, minimum inhibitory concentration (MIC) and antibacterial activity.

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