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Oral streptococci

Iranian propolis efficiently inhibits growth of oral streptococci and cancer cell lines

Iranian propolis efficiently inhibits growth of oral streptococci and cancer cell lines

... particular, oral pathogens [28] and it is likely to directly affect the microorganisms (in vitro) and may activate mechanisms that are involved in killing microorganisms by stimulating the immune system (in vivo) ...

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Comparison of Minitek and conventional methods for the biochemical characterization of oral streptococci

Comparison of Minitek and conventional methods for the biochemical characterization of oral streptococci

... Although mannitol, lactose, inulin, arginine, raffinose, sorbitol, and acetoin VogesProskauer have been described as differentiating tests for oral streptococci 3, 7, 17 additional tests[r] ...

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Determination of copy number and circularization ratio of Tn916 Tn1545 family of conjugative transposons in oral streptococci by droplet digital PCR

Determination of copy number and circularization ratio of Tn916 Tn1545 family of conjugative transposons in oral streptococci by droplet digital PCR

... It is reasonable to assume that the more copies of the Tn916-Tn1545 family present in the genome, the more CI molecules would be present in the bacterial cell. This assumption was true when CI levels in B. subtilis BS49 ...

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Identification of Hemin-binding Protein of Oral Streptococci via Electrophoresis in SDS Polyacrylamide Gel

Identification of Hemin-binding Protein of Oral Streptococci via Electrophoresis in SDS Polyacrylamide Gel

... The results of this study can support the rationale that hemin binding protein is involved in the mechanism by which streptococcus bacteria obtain iron using heme compounds. And, if the structure of the hemin binding ...

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Inhibition by Yeast Killer Toxin-like Antibodies of Oral Streptococci Adhesion to Tooth Surfaces in an Ex Vivo Model

Inhibition by Yeast Killer Toxin-like Antibodies of Oral Streptococci Adhesion to Tooth Surfaces in an Ex Vivo Model

... All the operations were carried out under sterile conditions. One hundred microliters of appropriate dilutions of the cell suspensions obtained after brushing were inoculated onto the surface of Petri dishes containing ...

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Effect of xylitol on cariogenic and beneficial oral streptococci: a randomized, double-blind crossover trial.

Effect of xylitol on cariogenic and beneficial oral streptococci: a randomized, double-blind crossover trial.

... Microbiological Analysis. The saliva samples were homogenized by ultra-sonication under ice- cold water for 10 s; 20 µl aliquots of 10-fold diluted samples were plated on the following selective media: Mitis ...

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Establishment of an Animal Model Using Recombinant NOD.B10.D2 Mice To Study Initial Adhesion of Oral Streptococci

Establishment of an Animal Model Using Recombinant NOD.B10.D2 Mice To Study Initial Adhesion of Oral Streptococci

... Previous studies of labial salivary glands have suggested that MHC molecules are genetically associated with SS in humans (10, 23, 27). Class II HLA antigen is expressed on SS salivary FIG. 5. Adhesion of oral ...

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Species Designations Belie Phenotypic and Genotypic Heterogeneity in Oral Streptococci

Species Designations Belie Phenotypic and Genotypic Heterogeneity in Oral Streptococci

... Health-associated oral Streptococcus species are promising probiotic candidates to protect against dental ...of oral biofilms, and direct antagonism of caries-associated bacterial species are desirable ...

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Prevalence of the Amylase Binding Protein A Gene (abpA) in Oral Streptococci

Prevalence of the Amylase Binding Protein A Gene (abpA) in Oral Streptococci

... of oral streptococci, assigned to various species by using the most recent knowledge of their taxonomic status, were tested for their ability to bind salivary ...of oral streptococci was cut ...

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High performance liquid chromatographic analysis of bacterial fatty acid composition for chemotaxonomic characterization of oral streptococci

High performance liquid chromatographic analysis of bacterial fatty acid composition for chemotaxonomic characterization of oral streptococci

... High-Performance Liquid Chromatographic Analysis of Bacterial Fatty Acid Composition for Chemotaxonomic Characterization of Oral Streptococci HIRONORI TSUCHIYA,' MASARU SATO,2 MOTOHIRO K[r] ...

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New method for the isolation of Streptococcus mutans and its differentiation from other oral streptococci

New method for the isolation of Streptococcus mutans and its differentiation from other oral streptococci

... Growth inhibition optical density [OD] at plaque material specimen was prepared, and 546 nm of glucose-grown Streptococcus strains in portions of the specimen dilutions were plated on th[r] ...

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Evaluation of the Antimicrobial Effect of Conventional and Nanosilver-Containing Varnishes on Oral Streptococci

Evaluation of the Antimicrobial Effect of Conventional and Nanosilver-Containing Varnishes on Oral Streptococci

... In the present study, the antibacterial effects of nanosilver-containing varnishes on oral micro organ- isms, namely S. mutans and S. sanguis, have been in- vestigated. Future studies are suggested to evaluate ...

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HIV Infection and Microbial Diversity in Saliva

HIV Infection and Microbial Diversity in Saliva

... including oral streptococci, lactoba- cilli, Streptococcus mutans, and Candida, in saliva than did HIV-negative ...human oral microbe identification microarray (HOMIM) assay, which compared the 16S ...

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Loop Mediated Isothermal Amplification Method Targeting the lytA Gene for Detection of Streptococcus pneumoniae

Loop Mediated Isothermal Amplification Method Targeting the lytA Gene for Detection of Streptococcus pneumoniae

... S. mitis and S. oralis are considered commensals of the human oral cavity. They are the most closely related species to S. pneumoniae on this ecological basis, and their 16S rRNA sequences share over 99% identity ...

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Bacterial adherence in the pathogenesis of endocarditis  Interaction of bacterial dextran, platelets, and fibrin

Bacterial adherence in the pathogenesis of endocarditis Interaction of bacterial dextran, platelets, and fibrin

... incubating the organisms in dextranase (adherence ratio X 10(4), 117 +/- 16, P less than 0.001), an effect which was nullified by heat inactivating this enzyme (adherence ratio X 10(4), 192 +/- 7, P less than 0.001). The ...

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Responses of Cariogenic Streptococci to Environmental Stresses

Responses of Cariogenic Streptococci to Environmental Stresses

... which oral biofilms are exposed, low pH and profound changes in carbohydrate source and availability appear to have the greatest impact on supragingival plaque ecology and the development of dental ...mutans ...

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Evaluation of antibacterial efficiency of chitosan and chitosan nanoparti- cles on cariogenic streptococci: an in vitro study

Evaluation of antibacterial efficiency of chitosan and chitosan nanoparti- cles on cariogenic streptococci: an in vitro study

... of oral Strepto- cocci was observed; therefore, chitosan decreased ...against oral Streptococci was compared and it was found that with increasing the concentration of chitosan, anti-adhe- sion ...

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Real Time Identification of Bacteria and Candida Species in Positive Blood Culture Broths by Matrix Assisted Laser Desorption Ionization Time of Flight Mass Spectrometry

Real Time Identification of Bacteria and Candida Species in Positive Blood Culture Broths by Matrix Assisted Laser Desorption Ionization Time of Flight Mass Spectrometry

... It should be pointed out that a precise identification among the group of oral streptococci is difficult to achieve with MALDI-TOF–MS; a Slidex pneumo-kit test bioMérieux was therefore [r] ...

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Excretion of Lipoteichoic Acid by Group A Streptococci: INFLUENCE OF PENICILLIN ON EXCRETION AND LOSS OF ABILITY TO ADHERE TO HUMAN ORAL MUCOSAL CELLS

Excretion of Lipoteichoic Acid by Group A Streptococci: INFLUENCE OF PENICILLIN ON EXCRETION AND LOSS OF ABILITY TO ADHERE TO HUMAN ORAL MUCOSAL CELLS

... chromatography. The ability of the same materials to bind to human erythrocytes and epithelial cells was tested. The culture supernate contained lipoteichoic acid, deacylated lipoteichoic acid, glycerol phosphate, and ...

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Biochemical properties of CO2 dependent streptococci

Biochemical properties of CO2 dependent streptococci

... C02-dependent streptococci are a heterogeneous group which include beta-hemolytic streptococci, often called minute beta or indifferent streptococci 14, 16; viridans and nonhemolytic str[r] ...

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