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AIMS To assess the ability of Listeria monocytogenes to form biofilm on different food-contact surfaces with regard to different temperatures, cellular hydrophobicity and motility. METHODS AND RESULTS Forty-four L. monocytogenes strains from food and food environment were tested for biofilm formation by crystal violet staining. Biofilm levels were(More)
The complete amino acid sequence of glutathione transferase from Proteus mirabilis was determined. The sequence was reconstructed by analysis of peptides obtained after cleavage by trypsin, Glu-C and Asp-N endoproteinases. The enzyme subunit is composed of 203 amino acid residues corresponding to a molecular mass of 22856 Da. Comparison of this sequence(More)
A high prevalence of Actinobacillus actinomycetemcomitans (Aa) in subgingival plaque in patients for orthodontia already has been observed. The present study had the following aims: 1) to ascertain a direct relationship between the orthodontic appliance placement and the subgingival colonization by Aa, and 2) to determine whether the Aa growth specifically(More)
We tested 40 clinical Stenotrophomonas maltophilia strains to investigate the possible correlation between adherence to and formation of biofilm on polystyrene, and cell surface properties such as hydrophobicity and motility. Most of the strains were able to adhere and form biofilm, although striking differences were observed. Eleven (27.5%) of the strains(More)
BACKGROUND The use of locally delivered antibacterials containing chlorhexidine (CHX) was proposed to improve the effectiveness of non-surgical periodontal treatment. The present multicenter randomized study investigated the effects of a xanthan-based chlorhexidine (Xan-CHX) gel used as an adjunct to scaling and root planing (SRP) in the treatment of(More)
We describe the first known case of vertebral osteomyelitis and discitis caused by Blastoschizomyces capitatus in a leukemic patient and the results of therapy. We also reconfirm the microbiological characteristics which differentiate this species from other yeastlike pathogens.
Aim of this study was to evaluate whether tonsils might be a potential reservoir for Helicobacter pylori (H. pylori) infection. A total of 72 consecutive dyspeptic patients undergoing endoscopy for the first time were studied. For each patient, a bilateral tonsillar swab was performed, before endoscopy, for microbiological culture and immunochemical(More)
The aim of this study was to evaluate the efficacy of the Pumped Diodium-Nd:YAG laser in sterilizing contaminated root canals. After hand instrumentation, 30 teeth were inoculated with Actinomyces naeslundii CH-12 and 30 teeth with Pseudomonas aeruginosa ATCC 27853 and incubated for 24 h. The teeth were divided into three subgroups: subgroup A received no(More)
The presence of glutathione transferase (GST; EC 2.5.1.18) in Escherichia coli ATCC 25922, E. coli ATCC 25422, Proteus vulgaris ATCC 8427, Pseudomonas aeruginosa ATCC 27853, Klebsiella oxytoca CIP 666, K. oxytoca AF 101, Enterobacter cloacae CIP 6085, Serratia marcescens CIP 6755, and Proteus mirabilis AF 2924 was investigated. Using(More)