A gram-positive organism found in dental plaque, in blood, on heart valves in subacute endocarditis, and infrequently in saliva and throat specimens. L-forms are associated with recurrent aphthous stomatitis.
A genus of gram-positive, coccoid bacteria whose organisms occur in pairs or chains. No endospores are produced. Many species exist as commensals or parasites on man or animals with some being highly pathogenic. A few species are saprophytes and occur in the natural environment.
A polysaccharide-producing species of STREPTOCOCCUS isolated from human dental plaque.
A genus of gram-positive, rod-shaped bacteria whose organisms are nonmotile. Filaments that may be present in certain species are either straight or wavy and may have swollen or clubbed heads.
A species of gram-positive, coccoid bacteria isolated from skin lesions, blood, inflammatory exudates, and the upper respiratory tract of humans. It is a group A hemolytic Streptococcus that can cause SCARLET FEVER and RHEUMATIC FEVER.
A gram-positive organism found in the upper respiratory tract, inflammatory exudates, and various body fluids of normal and/or diseased humans and, rarely, domestic animals.
Infections with bacteria of the genus STREPTOCOCCUS.
A film that attaches to teeth, often causing DENTAL CARIES and GINGIVITIS. It is composed of MUCINS, secreted from salivary glands, and microorganisms.
A group of compounds with the general formula M10(PO4)6(OH)2, where M is barium, strontium, or calcium. The compounds are the principal mineral in phosphorite deposits, biological tissue, human bones, and teeth. They are also used as an anticaking agent and polymer catalysts. (Grant & Hackh's Chemical Dictionary, 5th ed)
A thin protein film on the surface of DENTAL ENAMEL. It is widely believed to result from the selective adsorption of precursor proteins present in SALIVA onto tooth surfaces, and to reduce microbial adherence to the TEETH.
The oval-shaped oral cavity located at the apex of the digestive tract and consisting of two parts: the vestibule and the oral cavity proper.
The clear, viscous fluid secreted by the SALIVARY GLANDS and mucous glands of the mouth. It contains MUCINS, water, organic salts, and ptylin.
A property of the surface of an object that makes it stick to another surface.
A bacterium which causes mastitis in cattle and occasionally in man.
A species of gram-positive, coccoid bacteria commensal in the respiratory tract.
Inflammation of the ENDOCARDIUM caused by BACTERIA that entered the bloodstream. The strains of bacteria vary with predisposing factors, such as CONGENITAL HEART DEFECTS; HEART VALVE DISEASES; HEART VALVE PROSTHESIS IMPLANTATION; or intravenous drug use.
A species of gram-positive, coccoid bacteria that is numerous in the mouth and throat. It is a common cause of endocarditis and is also implicated in dental plaque formation.
Physicochemical property of fimbriated (FIMBRIAE, BACTERIAL) and non-fimbriated bacteria of attaching to cells, tissue, and nonbiological surfaces. It is a factor in bacterial colonization and pathogenicity.
A species of STREPTOCOCCUS isolated from pigs. It is a pathogen of swine but rarely occurs in humans.
Proteins found in any species of bacterium.
ENDOCARDIUM infection that is usually caused by STREPTOCOCCUS. Subacute infective endocarditis evolves over weeks and months with modest toxicity and rare metastatic infection.
The mineral component of bones and teeth; it has been used therapeutically as a prosthetic aid and in the prevention and treatment of osteoporosis.
The clumping together of suspended material resulting from the action of AGGLUTININS.
The heritable modification of the properties of a competent bacterium by naked DNA from another source. The uptake of naked DNA is a naturally occuring phenomenon in some bacteria. It is often used as a GENE TRANSFER TECHNIQUE.
A species of gram-positive, coccoid bacteria commonly found in the alimentary tract of cows, sheep, and other ruminants. It occasionally is encountered in cases of human endocarditis. This species is nonhemolytic.
Substances, usually of biological origin, that cause cells or other organic particles to aggregate and stick to each other. They include those ANTIBODIES which cause aggregation or agglutination of particulate or insoluble ANTIGENS.
A species of gram-positive, coccoid bacteria commonly isolated from clinical specimens and the human intestinal tract. Most strains are nonhemolytic.
A species of gram-positive, coccoid bacteria isolated from abscesses in submaxillary glands and mucopurulent discharges of the upper respiratory tract of horses. This organism belongs to Group C streptococci with regards to antigen response and is known to cause strangles. The subspecies S. zooepidemicus is also considered a pathogen of horses.
A long-acting barbiturate that depresses most metabolic processes at high doses. It is used as a hypnotic and sedative and may induce dependence. Barbital is also used in veterinary practice for central nervous system depression.
Substances elaborated by bacteria that have antigenic activity.
Deoxyribonucleic acid that makes up the genetic material of bacteria.
A disaccharide consisting of two glucose units in an alpha (1-6) glycosidic linkage.
A methylpentose whose L- isomer is found naturally in many plant glycosides and some gram-negative bacterial lipopolysaccharides.
A bacteriostatic antibiotic macrolide produced by Streptomyces erythreus. Erythromycin A is considered its major active component. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.
A species of gram-positive, coccoid bacteria isolated from the human tooth surface. Strains have been shown to be cariogenic in experimental animals and may be associated with human dental caries.
Enzymes that catalyze the transfer of glucose from a nucleoside diphosphate glucose to an acceptor molecule which is frequently another carbohydrate. EC 2.4.1.-.
Bacterial polysaccharides that are rich in phosphodiester linkages. They are the major components of the cell walls and membranes of many bacteria.
Viruses whose host is Streptococcus.
Proteins and peptides found in SALIVA and the SALIVARY GLANDS. Some salivary proteins such as ALPHA-AMYLASES are enzymes, but their composition varies in different individuals.
A genus of gram-negative, anaerobic cocci parasitic in the mouth and in the intestinal and respiratory tracts of man and other animals.
Rupture of bacterial cells due to mechanical force, chemical action, or the lytic growth of BACTERIOPHAGES.
Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp.
Polysaccharides found in bacteria and in capsules thereof.
Infections with bacteria of the species STREPTOCOCCUS PNEUMONIAE.
Substances that reduce the growth or reproduction of BACTERIA.
A strong oxidizing agent.
The outermost layer of a cell in most PLANTS; BACTERIA; FUNGI; and ALGAE. The cell wall is usually a rigid structure that lies external to the CELL MEMBRANE, and provides a protective barrier against physical or chemical agents.
Cell-surface components or appendages of bacteria that facilitate adhesion (BACTERIAL ADHESION) to other cells or to inanimate surfaces. Most fimbriae (FIMBRIAE, BACTERIAL) of gram-negative bacteria function as adhesins, but in many cases it is a minor subunit protein at the tip of the fimbriae that is the actual adhesin. In gram-positive bacteria, a protein or polysaccharide surface layer serves as the specific adhesin. What is sometimes called polymeric adhesin (BIOFILMS) is distinct from protein adhesin.
A species of gram-positive, facultatively anaerobic bacteria in the family STREPTOCOCCACEAE. It is a normal inhabitant of the human oral cavity, and causes DENTAL PLAQUE and ENDOCARDITIS. It is being investigated as a vehicle for vaccine delivery.
A group of antibiotics that contain 6-aminopenicillanic acid with a side chain attached to the 6-amino group. The penicillin nucleus is the chief structural requirement for biological activity. The side-chain structure determines many of the antibacterial and pharmacological characteristics. (Goodman and Gilman's The Pharmacological Basis of Therapeutics, 8th ed, p1065)
One of a set of bone-like structures in the mouth used for biting and chewing.
A disaccharide of GLUCOSE and GALACTOSE in human and cow milk. It is used in pharmacy for tablets, in medicine as a nutrient, and in industry.
A species of thermophilic, gram-positive bacteria found in MILK and milk products.
Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses).
Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.
The ability of microorganisms, especially bacteria, to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).
A group of glucose polymers made by certain bacteria. Dextrans are used therapeutically as plasma volume expanders and anticoagulants. They are also commonly used in biological experimentation and in industry for a wide variety of purposes.
The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.
The functional hereditary units of BACTERIA.
An antibiotic produced by Streptomyces lincolnensis var. lincolnensis. It has been used in the treatment of staphylococcal, streptococcal, and Bacteroides fragilis infections.
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
A class of plasmids that transfer antibiotic resistance from one bacterium to another by conjugation.
Polysaccharides composed of repeating glucose units. They can consist of branched or unbranched chains in any linkages.
Semisynthetic antibiotic prepared by combining penicillin G with PROCAINE.
A technique that combines protein electrophoresis and double immunodiffusion. In this procedure proteins are first separated by gel electrophoresis (usually agarose), then made visible by immunodiffusion of specific antibodies. A distinct elliptical precipitin arc results for each protein detectable by the antisera.
Change brought about to an organisms genetic composition by unidirectional transfer (TRANSFECTION; TRANSDUCTION, GENETIC; CONJUGATION, GENETIC, etc.) and incorporation of foreign DNA into prokaryotic or eukaryotic cells by recombination of part or all of that DNA into the cell's genome.
Techniques used in studying bacteria.
Process of determining and distinguishing species of bacteria or viruses based on antigens they share.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Substances elaborated by specific strains of bacteria that are lethal against other strains of the same or related species. They are protein or lipopolysaccharide-protein complexes used in taxonomy studies of bacteria.
Thin, hairlike appendages, 1 to 20 microns in length and often occurring in large numbers, present on the cells of gram-negative bacteria, particularly Enterobacteriaceae and Neisseria. Unlike flagella, they do not possess motility, but being protein (pilin) in nature, they possess antigenic and hemagglutinating properties. They are of medical importance because some fimbriae mediate the attachment of bacteria to cells via adhesins (ADHESINS, BACTERIAL). Bacterial fimbriae refer to common pili, to be distinguished from the preferred use of "pili", which is confined to sex pili (PILI, SEX).
The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The adhesion of gases, liquids, or dissolved solids onto a surface. It includes adsorptive phenomena of bacteria and viruses onto surfaces as well. ABSORPTION into the substance may follow but not necessarily.

Effect of warfarin on the induction and course of experimental endocarditis. (1/447)

The effect of warfarin treatment on an experimental endocarditis was studied in rabbits. Warfarin had no effect on the induction of a Streptococcus sanguis infection in catheter-induced endocardial vegetations, and the course of this infection was also unaltered. However, warfarin treatment resulted in rapidly progressive bacteremia, probably due to impaired circulation in clearing organs such as the lungs, liver, and spleen. Warfarin also reduced the survival time of the infected rabbits, in which pulmonary edema and extensive lung hemorrhages may have been a contributory factor.  (+info)

Interaction of inflammatory cells and oral microorganisms. II. Modulation of rabbit polymorphonuclear leukocyte hydrolase release by polysaccharides in response to Streptococcus mutans and Streptococcus sanguis. (2/447)

The release of lysosomal hydrolases from polymorphonuclear leukocytes (PMNs) has been postulated in the pathogenesis of tissue injury in periodontal disease. In the present study, lysosomal enzyme release was monitored from rabbit peritoneal exudate PMNs exposed to Streptocccus mutans or Streptococcus sanguis. S. mutans grown in brain heart infusion (BHI) broth failed to promote significant PMN enzyme release. S. sanguis grown in BHI broth, although more effective than S. mutants, was a weak stimulus for promotion of PMN hydrolase release. Preincubation of washed, viable S. mutans in sucrose or in different-molecular-weight dextrans resulted in the ability of the organisms to provoke PMN release reactions. This effect could bot be demonstrated with boiled or trypsinized S. mutans or with viable S. sanguis. However, when grown in BHI broth supplemented with sucrose, but not with glucose, both S. mutans and S. sanguis triggered discharge of PMN enzymes. The mechanism(s) whereby dextran or sucrose modulates PMN-bacterial interaction may in some manner be related to promotion of microbial adhesiveness or aggregation by dextran and by bacterial synthesis of glucans from sucrose.  (+info)

Lipoteichoic acid acts as an antagonist and an agonist of lipopolysaccharide on human gingival fibroblasts and monocytes in a CD14-dependent manner. (3/447)

CD14 has been implicated as a receptor of lipoteichoic acid (LTA) and other bacterial components as well as lipopolysaccharide (LPS). Since the structures of LTAs from various gram-positive bacteria are heterogeneous, we analyzed the effects of LTAs on the secretion of interleukin-8 (IL-8) by high- and low-CD14-expressing (CD14(high) and CD14(low)) human gingival fibroblasts (HGF). While Bacillus subtilis LTA had an IL-8-inducing effect on CD14(high) HGF which was considerably weaker than that of LPS, Streptococcus sanguis and Streptococcus mutans LTAs had practically no effect on the cells. B. subtilis LTA had only a weak effect on CD14(low) HGF, as did LPS. S. sanguis and S. mutans LTAs at a 1,000-fold excess each completely inhibited the IL-8-inducing activities of both LPS and a synthetic lipid A on CD14(high) HGF. The effect of LPS was also inhibited by the presence of an LPS antagonist, synthetic lipid A precursor IVA (LA-14-PP), with a 100-fold higher potency than S. sanguis and S. mutans LTAs and by anti-CD14 monoclonal antibody (MAb). S. sanguis and S. mutans LTAs, LA-14-PP, and anti-CD14 MAb had no significant effect on phorbol myristate acetate-stimulated IL-8 secretion by HGF. These LTAs also inhibited the IL-8-inducing activity of B. subtilis LTA on CD14(high) HGF, as did LA-14-PP and anti-CD14 MAb. The antagonistic and agonistic functions of LTAs were also observed with human monocytes. Binding of fluorolabeled LPS to human monocytes was inhibited by S. sanguis LTA, although the inhibition was 100 times weaker than that of LPS itself, and anti-CD14 MAb inhibited fluorolabeled LPS and S. sanguis LTA binding. Binding of LTAs to CD14 was also observed with nondenaturing polyacrylamide gel electrophoresis. These results indicate that LTAs act as antagonists or agonists via a CD14-dependent mechanism, probably due to the heterogeneous structure of LTAs, and that an antagonistic LTA might be a useful agent for suppressing the periodontal disease caused by gram-negative bacteria.  (+info)

Autolysis in strains of viridans streptococci. (4/447)

Seven strains of viridans streptococci of the species Streptococcus sanguis, S. mutans and S. mitis were investigated for autolysis. The effect of pH, salt concentration and temperature on the autolytic process was studied in Na2HPO4/NaH2PO4 buffer. Whole cells and walls of all strains autolysed most rapidly at pH values above 7. Autolysis of whole cells of S. sanguis and one strain of S. mitis (ATCC15909) was maximal in 0-05 TO 0-2 M buffer, while the two S. mutans strains and S. mitis ATCC15912 showed maximal autolysis in 0-5 and 1-0 M buffers. Cultures harvested in the stationary phase of growth possessed only slightly decreased autolytic activity compared with those from the exponential phase. Whole cells autolysed more rapidly at 37 degrees C Than at 45 degrees C and 10 degrees C. Autolysis of isolated walls of three strains of S. mitis (ATCC903, ATCC15909 and ATCC15912) was maximal at pH 7-0 AND 7-5 and in 1-0 M buffers. Streptococcus mitis ATCC15909 also showed maximal lysis in 0-01 M and 0-5 M buffers. An endopeptidase action of the autolytic system of S. mitis ATCC15912 was indicated by the progressive release of soluble amino groups during autolysis of the walls. No release of reducing groups was observed. Several free amino acids were released during autolysis of these walls, alanine, lysine and glutamic acid being in greatest quanitity.  (+info)

Cure of implantable venous port-associated bloodstream infections in pediatric hematology-oncology patients without catheter removal. (5/447)

The efficacy of antibiotic treatment of port-associated bloodstream infection without device removal has not been systematically studied. We analyzed the outcome of 43 consecutive port-associated bloodstream infections in pediatric hematology-oncology patients. Etiologies included Staphylococcus epidermidis (30) and Staphylococcus aureus (6). Antibiotics were given through the port for a median of 11 days. Four ports were removed within 72 hours. In 36 (92%) of the remaining 39 episodes, there was a response to antibiotic therapy (defervescence and negative blood culture). In 78% of episodes in which there was a response (excluding two in which the catheters were removed because of mechanical problems), the infections were cured without port removal. Two of the four relapses were cured with a second course of antibiotics. The cure rate was 92% for S. epidermidis infections and 67% for S. aureus infections. Thus, the majority of port-associated bloodstream infections in pediatric hematology-oncology patients can be cured without device removal.  (+info)

Enhanced transformability with heterospecific deoxyribonucleic acid in a Streptococcus sanguis mutant impaired in ribonucleic acid polymerase activity. (6/447)

We have induced with nitrosoguanidine in Streptococcus sanguis a mutation conferring inability to grow and synthesize ribonucleic acid (RNA) at 42 C, the optimal temperature for growth and RNA synthesis in the parental strain. The mutation (ts) is transferable via transforming deoxyribonucleic acid (DNA) and is replaceable by its wild-type allele with fairly high efficiency in transformation reactions. The ts mutation is unlinked to the sites of mutation conferring resistance of rifampin (rifr) and streptolydigin (stgr), known to affect the beta subunit of DNA-dependent RNA polymerase. Extracts from strains carrying the ts mutation are more sensitive to elevated temperatures than are parental extracts when assayed for DNA-dependent RNA polymerase. The conclusion that the mutation causes a temperature-sensitive defect in some component of this enzyme (other than beta) is supported by the finding that the polymerase activity of a heat-inactivated ts stgr extract cannot be increased by addition of an unheated ts stgs extract, which is itself inactivated by streptolydigin. S. sanguis recipients carrying the ts mutation are highly transformable with heterospecific DNA, especially at the restrictive temperature.  (+info)

Bacterial species- and strain-dependent induction of tissue factor in human vascular endothelial cells. (7/447)

A cardinal process in bacterial endocarditis (BE) is the activation of the clotting system and the formation of a fibrin clot on the inner surface of the heart, the so-called endocardial vegetation. The processes that lead to the activation of the clotting system on endothelial surfaces upon exposure to bacteria are largely unknown. In the present study, we investigated in an in vitro model whether infection of human endothelial cells (EC) with bacteria that are relevant to BE, such as Staphylococcus aureus, Streptococcus sanguis, and Staphylococcus epidermidis, leads to induction of tissue factor (TF)-dependent procoagulant activity (TFA) and whether this process is influenced by host factors, such as interleukin-1 (IL-1), that are produced in response to the bacteremia in vivo. The results show that S. aureus binds to and is internalized by EC, resulting in expression of TF mRNA and TF surface protein as well as generation of TFA within 4 to 8 h after infection. No TFA was found when EC were exposed to UV-irradiated S. aureus or bacterial cell wall fragments. S. sanguis and S. epidermidis, although also binding to EC, did not induce endothelial TFA. This indicates a species and strain dependency. EC also expressed TFA after exposure to IL-1. The enhanced TFA of EC after exposure to S. aureus was not prevented by IL-1 receptor antagonist, arguing against an auto- or paracrine contribution of endogenous IL-1. When IL-1 was applied together with bacteria, this had a synergistic effect on the induction of EC TFA. This was found in particular with S. aureus but also, although to a lesser degree, with S. sanguis and S. epidermidis. This influence of IL-1 on the species- and strain-dependent induction of EC TFA suggests that bacterial factors as well as host factors orchestrate the induction of coagulation in an early stage in the pathogenesis of endovascular disease, such as BE.  (+info)

Efficacy of levofloxacin for experimental aortic-valve endocarditis in rabbits infected with viridans group streptococcus or Staphylococcus aureus. (8/447)

Levofloxacin is among the more active fluoroquinolones against streptococci and staphylococci. It is effective against moderately severe infections caused by these organisms, but its efficacy in the treatment of bacteremia and serious infections such as endocarditis is not well defined. We compared the efficacy of levofloxacin to those of standard agents in the rabbit model of aortic-valve endocarditis caused by fluoroquinolone-susceptible strains including a penicillin-susceptible strain of Streptococcus sanguis, a penicillin-resistant strain of Streptococcus mitis, a methicillin-resistant strain of Staphylococcus aureus, and a methicillin-susceptible strain of S. aureus. Levofloxacin administered intramuscularly at dosages of 20 to 40 mg/kg of body weight twice daily (b.i.d.) was completely ineffective against the penicillin-susceptible strain, with mean vegetation titers after 3 days of therapy not statistically significantly different from those for controls. Levofloxacin was no more effective than penicillin against the penicillin-resistant strain. Levofloxacin administered for 4 days at a dosage of 20 mg/kg b.i.d. was at least as effective as vancomycin administered intravenously at a dosage of 25 mg/kg b.i. d. against the methicillin-resistant S. aureus strain and was as effective as nafcillin administered intramuscularly at 100 mg three times daily against the methicillin-susceptible strain. Emergence of resistance to levofloxacin in vitro was less likely to occur than resistance to ciprofloxacin, and resistance to levofloxacin was not observed in vivo. Levofloxacin-rifampin combinations were antagonistic in vitro and in vivo. Levofloxacin was highly effective as a single agent against experimental staphylococcal endocarditis but was surprisingly ineffective against streptococcal endocarditis, suggesting that it has a potential role as treatment for serious S. aureus but not viridans group streptococcal infections in humans.  (+info)

The contributions of granulocytes to the prevention and therapy of Streptococcus sanguis endocarditis with procaine benzylpenicillin (PBP) was investigated in rabbits. Depletion of granulocytes by treatment with mechlorethamine appeared to have no significant effect on either the prophylactic or therapeutic activities of PBP. Administration of 3,000 IU of PBP before inoculation with S. sanguis retarded the course of the endocarditis for only 24 h whether granulocytes were normal or depressed in numbers. Prophylaxis with either 15,000 or 30,000 IU of PBP was equally effective in non-granulocytopenic and granulocytopenic rabbits. Treatment of established infections with PBP at doses of 3,000 to 300,000 IU of PBP at 12-h intervals for 48 h was equally effective in rabbits with normal and depressed numbers of granulocytes. The effect of 3,000 IU of PBP was equivalent, however, to that of granulocytes alone, as shown by the fact that the numbers of CFU per gram of vegetation in the granulocytopenic ...
The adherence of Streptococcus sanguis to specific receptors exposed or deposited at the site of endothelial damage may play an important role in the development of infective endocarditis. Adherence of the Challis strain of S. sanguis to gelatin (or collagen) and gelatin-binding components of plasma was examined with an enzyme-linked immunosorbent assay. S. sanguis adhered poorly to immobilized gelatin and to molecular or fibrillar collagen. However, in the presence of fresh human plasma, the adherence of S. sanguis to all three substrates increased as much as eightfold. Removal of gelatin-binding proteins eliminates the ability of plasma to enhance adherence of S. sanguis to the substrates. Addition of purified human plasma fibronectin (Fn) to the absorbed plasma restored the adherence-promoting ability in a dose-dependent manner. A similar dose-dependent increase in S. sanguis adherence was observed when increasing concentrations of Fn alone were added to the gelatin-coated assay wells. S. ...
Kilian et al. 1989 Kilian M, Mikkelsen L, Henrichsen J. Taxonomic study of viridans streptococci: description of Streptococcus gordonii sp. nov. and emended descriptions of Streptococcus sanguis (White and Niven 1946), Streptococcus oralis (Bridge and Sneath 1982), and Streptococcus mitis (Andrewes and Horder 1906). Int. J. Syst. Bacteriol. 1989; 39:471-484. ...
TY - JOUR. T1 - Competent antigen-binding fragments (Fab) from secretory immunoglobulin A using Streptococcus sanguis immunoglobulin A protease.. AU - Mallett, C. P.. AU - Boylan, Robert. AU - Everhart, D. L.. PY - 1984. Y1 - 1984. UR - http://www.scopus.com/inward/record.url?scp=0021294860&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0021294860&partnerID=8YFLogxK. M3 - Article. C2 - 6423284. AN - SCOPUS:0021294860. VL - 18. SP - 201. EP - 208. JO - Caries Research. JF - Caries Research. SN - 0008-6568. IS - 3. ER - ...
In the Kilians opinion [1] the change of the well-established name Streptococcus sanguis may be a source of confusion. So, with reference to the first Principle of the Bacteriological Code (1990 Revision), Kilian requested that the original name Streptococcus sanguis be conserved [2]. The Judicial Commission denied this request, and no Opinion will be issued upon this request [3]. Publication: Kilian M. Necessary changes of bacterial names? ASM News 1998; 64:670 ...
Albumin is the most abundant plasma protein. Critical illness is often associated with altered, predominately decreased, serum albumin levels. This hypoalbuminaemia is usually corrected by administration of exogenous albumin. This study aimed to track the concentration-dependent influence of albumin on blood coagulation in vitro. Whole blood (WB) samples from 25 volunteers were prepared to contain low (19.3 ± 7.7 g/L), physiological (45.2 ± 7.8 g/L), and high (67.5 ± 18.1 g/L) levels of albumin. Haemostatic profiling was performed using a platelet function analyzer (PFA) 200, impedance aggregometry, a Cone and Platelet analyzer (CPA), calibrated automated thrombogram, and thrombelastometry (TEM). Platelet aggregation-associated ATP release was assessed via HPLC analysis. In the low albumin group, when compared to the physiological albumin group, we found: i) shortened PFA 200-derived closure times indicating increased primary haemostasis; ii) increased impedance aggregometry-derived amplitudes,
Don;t understand why you wasted so much media and time with irrelevant tests. Please determine if this isolate shows alpha hemolysis on blood agar ...
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This topic has 1 study abstract on Streptococcus Sanguinis indicating that they may have therapeutic value in the treatment of Childhood Infections, and Otitis media
UNVERIFIED: Streptococcus sanguinis galactose repressor (galR) gene, complete cds; galactokinase-like (galK) gene, complete sequence; and galactose-1-phosphate-uridylyltransferase (galT) and UDP-Gal-epimerase (galE1) genes, complete ...
Bloch, E. M., Goel, R., Wendel, S., Burnouf, T., Al-Riyami, A. Z., Ang, A. L., DeAngelis, V., Dumont, L. J., Land, K., Lee, C. K., Oreh, A., Patidar, G., Spitalnik, S. L., Vermeulen, M., Hindawi, S., Van den Berg, K., Tiberghien, P., Vrielink, H., Young, P., Devine, D. 及其他1, So - Osman, C., 一月 2021, 於: Vox Sanguinis. 116, 1, p. 18-35 18 p.. 研究成果: 雜誌貢獻 › 文章 › 同行評審 ...
Huik K; Sadam M; Karki T; Avi R; Krispin T; Paap P; Rüütel K; Uusküla A; Talu A; Abel-Ollo K; Lutsar I; The Journal of Infectious Diseases ...
Huik K; Sadam M; Karki T; Avi R; Krispin T; Paap P; Rüütel K; Uusküla A; Talu A; Abel-Ollo K; Lutsar I; The Journal of Infectious Diseases ...
The purpose of this study was to identify the major salivary components which interact with oral bacteria and to determine the mechanism(s) responsible for their binding to the bacterial surface. Strains of Streptococcus sanguis, Streptococcus mitis, Streptococcus mutans, and Actinomyces viscosus were incubated for 2 h in freshly collected human submandibular-sublingual saliva (HSMSL) or parotid saliva (HPS), and bound salivary components were eluted with 2% sodium dodecyl sulfate. By sodium dodecyl sulfate-polyacrylamide gel electrophoresis and Western transfer, alpha-amylase (EC 3.2.1.1) was the prominent salivary component eluted from S. sanguis. Studies with 125I-labeled HSMSL or 125I-labeled HPS also demonstrated a component with an electrophoretic mobility identical to that of alpha-amylase which bound to S. sanguis. Purified alpha-amylase from human parotid saliva was radiolabeled and found to bind to strains of S. sanguis genotypes 1 and 3 and S. mitis genotype 2, but not to strains of ...
This study examined the initial attachment of Streptococcus sanguis G9-B and Actinomyces viscosus T14V to saliva-treated powdered enamel and titanium surfaces. Using an in vitro adherence model, significantly lower numbers of Actinomyces viscosus T14V bound to the saliva-treated titanium surface when compared to that of the similarly treated enamel. The binding of Streptococcus sanguis G9-B to titanium or enamel did not vary significantly. A comparison of the percentage of cells bound to the titanium surface revealed that S sanguis cells attached in significantly higher numbers when compared to the A viscosus cells ...
Streptococcus sanguinis, formerly known as Streptococcus sanguis, is a Gram-positive facultative anaerobic coccus species of bacteria and a member of the Viridans Streptococcus group. S. sanguinis is a normal inhabitant of the healthy human mouth where it is particularly found in dental plaque, where it modifies the environment to make it less hospitable for other strains of Streptococcus that cause cavities, such as Streptococcus mutans. S. sanguinis may gain entrance to the bloodstream when opportunity presents (dental cleanings and surgeries) and colonize the heart valves, particularly the mitral and aortic valves, where it is the most common cause of subacute bacterial endocarditis. For this reason, oral surgeons often prescribe a short course of antibiotics to be taken a few days before to a few days after oral surgery. Once an infection has occurred, treatment is much more complicated and generally involves the administration of several weeks of penicillin and aminoglycoside antibiotics. ...
TY - JOUR. T1 - Streptococcus sanguinis and the sera of patients with Behçets disease stimulate membrane expression of α-enolase in human dermal microvascular endothelial cells. AU - Cho, Suhyun. AU - Zheng, Zhenlong. AU - Cho, Sung Bin. AU - Choi, Min Ju. AU - Lee, Kwang Hoon. AU - Bang, Dongsik. PY - 2013/4/1. Y1 - 2013/4/1. N2 - The glycolytic enzyme α-enolase is a plasminogen-binding protein that is generally found in the cytosolic compartment. However, α-enolase can also be expressed on cell surfaces following an inflammatory stimulus via an unknown mechanism. We investigated the effects of Streptococcus sanguinis (S. sanguinis) and the sera of patients with Behçets disease (BD) on the expression and distribution of α-enolase in human dermal microvascular endothelial cells (HDMECs). HDMECs were stimulated with cultured S. sanguinis and the sera of active BD patients. HDMECs incubated for 6, 12 or 24 h were harvested, and the membrane and cytoplasmic fractions of proteins were ...
Although S. sanguis is believed to be a rare cause of septic arthritis in native joints, it should be considered in the differential diagnosis of this disorder, especially in patients with recent treatment of severe dental caries and periodontal disease.
Biofilm accounts for 65%-80% of microbial infections in humans. Considerable evidence links biofilm formation to oral disease and consequently systemic infections. Eradication of biofilm-associated infections is important. Streptococcus sanguinis, a Gram-positive bacterium, is one of the most abundant species in oral biofilm. It contributes to biofilm development in oral cavities and is one of the recognized causes of infective endocarditis. To study and identify biofilm genes in S. sanguinis, biofilm formation of 51 mutants was compared with the wild type SK36 strain using crystal violet (CV) staining in a microtiter plate. Confocal laser scanning microscopy (CLSM) and image analysis was done to compare biofilm formation by the mutant to the wild type SK36 strain. A biofilm mutant XG2_0351, encoding a type I signal peptidase (SPase I), was further investigated. SPase I cleaves proteins that are transported through secretory machinery and is necessary for the release of translocated preproteins from a
TY - JOUR. T1 - Neutrophil and lymphocyte responses to oral Streptococcus in Adamantiades-Behçets disease. AU - Kurauchi, Tomomi. AU - Yokota, Kenji. AU - Matsuo, Toshihiko. AU - Fujinami, Yoshihito. AU - Isogai, Emiko. AU - Isogai, Hiroshi. AU - Ohtsuki, Hiroshi. AU - Oguma, Keiji. PY - 2005/2/1. Y1 - 2005/2/1. N2 - Immune reactions against microorganisms play an important pathogenic role in Adamantiades-Behçets disease. We had previously obtained Streptococcus sanguinis (strain BD113-20), isolated from the oral cavity of patients with Adamantiades-Behçets syndrome. To investigate the pathogenesis of this isolate, we examined neutrophil reactions and levels of cytokine production by lymphocytes after stimulation with the strain. The reactions of neutrophils were examined by chemiluminescence assay using whole blood. The amounts of interferon gamma (IFN-γ) and interleukin (IL)-4, IL-8, IL-10 and IL-12, produced by peripheral blood mononuclear cells, were measured by ELISA. Strain BD113-20 ...
High-level resistance to macrolide-lincosamide-streptogramin type B (MLS) antibiotics in Escherichia coli BM2570 is due to the presence on the conjugative plasmid pIP1527 of the MLS resistance determinant ermBC, which is almost identical to the erm genes previously described in plasmid pAM77 from Streptococcus sanguis (ermAM) and in transposon Tn917 from Enterococcus faecalis (ermB). This gene and its regulatory region are located downstream from the insertion sequence IS1. The 23S rRNA methylase encoded by pIP1527 differs by three and six amino acids from those encoded by Tn917 and pAM77, respectively. Unlike the streptococcal elements which confer the inducible MLS phenotype, the ermBC gene is expressed constitutively in E. coli and Bacillus subtilis, due to several mutations in the regulatory region. Transcription of the ermBC gene starts from three different sites following three overlapping promoters which function in both E. coli and B. subtilis. Promoters P2 and P3 are located within the ...
(2016) Arenz et al. Nature Communications. Nascent polypeptides can induce ribosome stalling, regulating downstream genes. Stalling of ErmBL peptide translation in the presence of the macrolide antibiotic erythromycin leads to resistance in Streptococcus sanguis. To reveal this stalling mechanism...
Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit.
In May 2017 Wiley Blackwell published a mobile app for Vox Sanguinis. Initially this app was only available for Apple devices. We are happy to announce that as of now the Vox Sanguinis mobile app is also available for Android devices! Vox Sanguinis brings you a stimulating, high-impact mixture of Review Articles, Highlights, Communications, and more. Stay current with the latest articles through Early View, download articles and issues for offline perusal, save your favorite articles for quick and easy access, view figures and tables full screen, and share them via email. Go to the Google Play Store or the Apple App Store and search for Vox Sanguinis to download the app. ...
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TY - JOUR. T1 - A massive haemothorax as an unusual complication of infective endocarditis caused by Streptococcus sanguinis. AU - Kim, Kyoung Jin. AU - Lee, Kang Won. AU - Choi, Ju Hee. AU - Sohn, Jang Wook. AU - Min, Ja Kim. AU - Yoon, Young Kyung. PY - 2016/7/3. Y1 - 2016/7/3. N2 - Objective and importance: Infective endocarditis involving the tricuspid valve is an uncommon condition, and a consequent haemothorax associated with pulmonary embolism is extremely rare. Particularly, there are no guidelines for the management of this complication. We describe a rare case of pulmonary embolism and infarction followed by a haemothorax due to infective endocarditis of the tricuspid valve caused by Streptococcus sanguinis. Clinical presentation: A 25-year-old man with a ventricular septal defect (VSD) presented with fever. On physical examination, his body temperature was 38.8 °C, and a grade III holosystolic murmur was heard. A chest X-ray did not reveal any specific findings. A transoesophageal ...
Imbalances within the dental biofilm trigger dental caries, currently considered a dysbiosis and the most prevalent noncommunicable disease. There is still a gap in knowledge about the dynamics of enamel colonization by bacteria from the dental biofilm in caries. The aim, therefore, was to test whether the sequence of enamel colonization by a typically commensal and a cariogenic species modifies biofilms cariogenicity. Dual-species biofilms of Streptococcus mutans and Streptococcus sanguinis on saliva-coated enamel slabs were inoculated in different sequences: S. mutans followed by S. sanguinis (Sm-Ss), S. sanguinis followed by S. mutans (Ss-Sm), S. mutans and S. sanguinis inoculated at the same time (Sm=Ss), and the single-species controls S. mutans followed by S. mutans (Sm-Sm) and S. sanguinis followed by S. sanguinis (Ss-Ss). Biofilms were exposed to 10% sucrose 3 times per day for 5 days, and the slabs/biofilms were retrieved to assess demineralization, viable cells, biomass, proteins, ...
Proteostasis, a portmanteau of the words protein and homeostasis, is the concept that there are competing and integrated biological pathways within cells that control the biogenesis, folding, trafficking and degradation of proteins present within and outside the cell. The concept of proteostasis maintenance is central to understanding the cause of diseases associated with excessive protein misfolding and degradation leading to loss-of-function phenotypes, as well as aggregation-associated degenerative disorders. Therefore, adapting proteostasis should enable the restoration of proteostasis once its loss leads to pathology. Cellular proteostasis is key to ensuring successful development, healthy aging, resistance to environmental stresses, and to minimize homeostasis perturbations by pathogens such as viruses. Mechanisms by which proteostasis is ensured include regulated protein translation, chaperone assisted protein folding and protein degradation pathways. Adjusting each of these mechanisms to ...
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de Vooght KM, Lozano M, Bueno JL, Alarcon A, Romera I, Suzuki K, Zhiburt E, Holbro A, Infanti L, Buser A, Hustinx H, Deneys V, Frelik A, Thiry C, Murphy M, Staves J, Selleng K, Greinacher A, Kutner JM, Bonet Bub C, Castilho L, Kaufman R, Colling ME, Perseghin P, Incontri A, Dassi M, Brilhante D, Macedo A, Cserti-Gazdewich C, Pendergrast JM, Hawes J, Lundgren MN, Storry JR, Jain A, Marwaha N, Sharma RR (May 2018). Vox Sanguinis International Forum on typing and matching strategies in patients on anti-CD38 monoclonal therapy: summary. Vox Sanguinis. 113 (5): 492-498. doi:10.1111/vox.12653. PMID 29781081 ...
Disialoganglioside-GD2 from bovine brain (~ 95%, lyophilized powder, semisynthetic); Cell surface component from disialoganglioside-GD1b;
TY - JOUR. T1 - Absence of the paradoxical effect when determining the bactericidal activity of penicillin against penicillin-susceptible strains of viridans group streptococci. AU - Moody, J. A.. AU - Stewart-Wigglesworth, S.. AU - Woolfrey, B. F.. PY - 1992/5/25. Y1 - 1992/5/25. N2 - Several reports based on broth dilution plate count data have linked the paradoxical effect with tolerance. In this study, bactericidal time-kill patterns for 15 strains of Streptococcus sanguis and four strains of Streptococcus mitis against penicillin were determined by the agar dilution plate count method. All 19 strains were susceptible to penicillin. Twenty-four-hour killing curve patterns were obtained for each strain, and sequential killing curve patterns representing penicillin action times of 6, 12, and 24 hours were obtained for selected strains. The 19 strains ranged from some that were slowly killed to others that were rapidly killed. The paradoxical effect was not demonstrable for 17 of 19 strains ...
Surely everyone knows that the first step in preventing tooth decay is their regular cleaning, however, it is very useful to know exactly how certain foods allow maintenance of tooth enamel and removing unsightly stains. Certain foods are bad for your body, especially your teeth. If you do not control the amount you eat, it can lead to serious problems.. Hard candy can stick to the surface of the tooth and requires a long time to decompose, so they are very harmful to the teeth. Some of them are so hard that they can cause your teeth to break if you bite into them. However, its not just about the amount of sugar you eat but how often, too.. Bacteria in the mouth love sugar, and the fermentation of sweet things into acid that eats away at the enamel of the tooth causes bleeding and formation of unsightly stains.. Caries is an infectious disease caused by various bacteria (Streptococcus sanguis and Streptococcus mutans, Lactobacillus acidophilus, Actinomyces naeslundi, Actinomyces viscosus and ...
Actinomyces viscosus bacteria. Coloured scanning electron micrograph (SEM) of strands of Actinomyces viscosus. Actinomyces viscosus is a filamentous soil bacterium, classified in the Actinobacteria. - Stock Image F012/4031
Fingerprint Dive into the research topics of Oxygen dependent pyruvate oxidase expression and production in Streptococcus sanguinis. Together they form a unique fingerprint. ...
Calculation of surface free energy (SFE) from contact angle results, measurement of contact angles on solids yields data that reflect the thermodynamics of a liquid/solid interaction.
Resistance in oral streptococci after repeated three-dose erythromycin prophylaxis.: Ten healthy volunteers, from whom no erythromycin-resistant oral streptococ
PHILADELPHIA--(January 20, 2017) - The two newest companies to join the University City Science Centers Port business incubator are transforming healthcare treatment options for patients. Vironika, founded by Paul Lieberman of The Wistar Institute, and Sanguis, launched by a trio of students from the University of Pennsylvania, are both taking lab space at 3624 Market Street.. Vironika is developing treatments for chronic viral infection and its associated diseases, with the goal of helping to develop new drugs that interfere with Epstein-Barr Virus ability to cause cancer and other serious illnesses. The companys work is supported by multiple NIH small business grants and ongoing research collaboration with The Wistar Institute.. The student founders of Sanguis are working to address a significant gap in care for chemotherapy patients. Blood cell counts are usually only measured when the patient is visiting the clinic, which can leave patients vulnerable to medical complications if their ...
Looking for medication to treat bacterial endocarditis? Find a list of current medications, their possible side effects, dosage, and efficacy when used to treat or reduce the symptoms of bacterial endocarditis
A number of media outlets recently reported on new research from the STSI examining the effects of aging on the DNA of a special type of stem cell.
Summary An agglutination assay for detecting intermicrobial adherence between the cells of Candida albicans and various oral bacteria is described. Strains of Streptococcus sanguis, S. salivarius, S. mutans, S. mitis, Fusobacterium nucleatum and Actinomyces viscosus all coagglutinated with C. albicans. No interaction could be demonstrated between the cells of Bacteroides melaninogenicus and those of C. albicans. Preliminary investigations of these interactions suggest that binding of F. nucleatum and A. viscosus to C. albicans is mediated by bacterial proteins, possibly lectins. Other mechanisms must account for the binding of oral streptococci to C. albicans. The possible implications of these findings in relation to oral mucosal colonisation and oral candidal clearance are discussed.
台灣五葉松(Pinus morrisonicola Hayata)為台灣特有之松科植物,其松針發芽主要為四月和九月,業者多以此時期之嫩芽製汁販售。本研究欲探討台灣五葉松松針精油是否能抑制齲齒菌的生長和抑制其生物膜形成。研究使用蒸餾萃取法(Distillation)萃取松針中精油物質,抑菌試驗使用24微量多孔盤進行(24-well cell culture microplates)與生物膜結晶紫染色法(crystal violet assay)和抑菌圈判定法(Inhibitory zone assay)。結果顯示,松針精油會影響齲齒菌Staphylococcus aureus、Streptococcus mutans、Streptococcus sanguinis、Streptococcus sobrinus的生長,與控制組相比,精油濃度達到16200 ppm時,Sta. aureus、S. mutans、S. sanguinis、S. sobrinus菌量剩0%、16%、15%、7.24% ; 精油濃度高至18000 ppm時,對Sta. aureus、S. sanguinis、S. sobrinus有全面抑制功效,雖然S. mutans的生長未完全被抑制,但其菌量已降量8.25%。松針精油會抑制Sta.
The Author(s) 2019. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail: [email protected] Pneumococcal conjugate vaccines have been successful, but their use has increased infections by nonvaccine serotypes. Oral streptococci often harbor capsular polysaccharide (PS) synthesis loci (cps). Although this has not been observed in nature, if pneumococcus can replace its cps with oral streptococcal cps, it may increase its serotype repertoire. In the current study, we showed that oral Streptococcus strain SK95 and pneumococcal strain D39 both produce structurally identical capsular PS, and their genetic backgrounds influence the amount of capsule production and shielding from nonspecific killing. SK95 is avirulent in a well-established in vivo mouse model. When acapsular pneumococcus was transformed with SK95 cps, the transformant became virulent and killed all mice. Thus, cps from oral Streptococcus strains ...
Purpose: Bacterial adhesion and colonization play a crucial function in the pathogenesis of peri-implant tissue infection, which is considered the main cause of fixture loss. The aim of this study is to evaluate the differences in bacterial adhesion between a machined titanium surface, a double acid etched surface (Osseotite®) and an Osseotite surface with Nanometer-scale Discrete Crystalline Deposition (DCD™) of calcium phosphate (CaP)(Nanotite®).Methods: Surface roughness properties of each sample were determined by a laser profilometer and scanning electron microscopy (SEM) observation. Bacterial adhesion on machined, Osseotite®, and Nanotite® discs were performed using the following bacterial strains: Streptococcus mutans CCUG 35176, Streptococcus sanguis CCUG 17826, Streptococcus salivarius CCUG 11878, Actinobacillus actinomycetecomitans CCUG 37002, Porphyromonas gingivalis CCUG 2521. The assessment of bacterial adhesion was performed by comparing two methods: Total Viable Count (TVC) ...
Objectives: Oral bacteria implying a natural resistance may deteriorate the antibacterial efficacy of chlorhexidine on cariogenic microorganisms. Xylitol, mostly applied via chewing gum, is known to possess favorable plaque-reducing properties. The aim of this study was to investigate the effect of a xylitol rinse formulated as pure solution or combined with chlorhexidine on the viability of Streptococcus sanguis (early colonizer of human teeth) and Streptococcus mutans (the most causal strain for caries) during initial steps of biofilm formation. Method and Materials: After exposure to the test solutions, the bacteria suspended in human sterile saliva were allowed to attach to human enamel slides for 60 minutes in a preclinical flow chamber system. The bacterial vitality of suspended and attached cells was monitored using 2 fluorescent DNA stains by epifluorescence microscopy. Further parameters measured were the total bacterial cell counts on enamel slides and growth of suspended streptococci. ...
In this study, Chinese researchers investigated the activity of loureirin A against biofilms formed by Candida albicans. Their findings were published in the Chinese Journal of Natural Medicines. Loureirin A is the major active component of draconis sanguis (dragons blood), a resin obtained from Dracaena plants that are used in traditional Chinese medicine (TCM). To explore its […]
In this study, Chinese researchers investigated the activity of loureirin A against biofilms formed by Candida albicans. Their findings were published in the Chinese Journal of Natural Medicines. Loureirin A is the major active component of draconis sanguis (dragons blood), a resin obtained from Dracaena plants that are used in traditional Chinese medicine (TCM). To explore its […]
PubMed journal article: Rationalization of the behavior of solid-liquid surface free energy of water in Cassie and Wenzel wetting states on rugged solid surfaces at the nanometer scale. Download Prime PubMed App to iPhone, iPad, or Android
Species of streptococci are well represented among the bacteria found in the oral cavity, which has been estimated to harbor around 500 different species of bacteria, though there remain many taxa of uncertain status and many microscopically observable microbes that have not yet been isolated in laboratory culture. These oral streptococci seem to be ubiquitous among all the human populations studied. When they have been sought, identical or closely related streptococci have also been found in a wide variety of animal species, so streptococci are clearly part of the normal commensal flora of mammals; this chapter considers the problems that arise when this commensal relationship breaks down and the oral streptococci become opportunistic pathogens. The chapter talks about acquisition of oral streptococci, mechanism of colonization, immunological processes in the mouth, and metabolism of dental plaque. The oral streptococci are normal commensals of the human mouth and as such play a beneficial role in
The stacking of discotic molecules (hexakis(alkoxy)diquinoxalino[2,3-a:2,3-c]phenazines) in the columnar phase sandwiched between two flat glass substrates has been studied. The surface free energy of the substrates, measured by means of sessile drop technique, is found to have significant influence on the way that the discotic molecules anchor on the surface, and a steady thermal state of the system is crucial for a homogenous orientation of the discotic columns. On a surface of high free energy, the discotic molecules anchor with their disc-face toward the surface. A decrease in the surface free energy of the substrate causes the discotic columns to tilt away from the normal of the substrate.
Authors Notes: Archived at ff.net and my site, Forbidden Love. This was started in a fit of PMT, and will probably only be written when Im in a similar state of mind, so dont expect regular updates! *Grins* Reviews are greatly appreciated from all and sundry - *Hinthint!* Sanguinis Masculus Hermione had had enough. She was a woman at breaking point, and if Malfoy turned around to give her one more smirk, or Snape dealt her one more snide remark, or Ron even dared to tell her to pull herself together once more, she would swing for one, or all, of the offenders. Hermione winced as another bolt of pain shot through her stomach. She gritted her teeth and stared into her lightly simmering cauldron, counting her stirs methodically in an attempt to take her mind off the pain. I need chocolate. I need chocolate. The mantra kept entering her mind, unbidden, and she fought against it with all her will. Her eyes flicked up, just for a moment, as the pain began to recede again. She scowled at the back of ...
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Swedish steelmaker SSAB offers a full lineup of dual-phase AHSS types under its Docol brand name. Its six Docol DP steels available for the U.S. market have minimum tensile strength to 145 ksi (1000 MPa). These cold-rolled dual-phase steels find global automotive applications in door beams, bumper reinforcements and seat tracks. SSAB offers the steels in sheet thicknesses of 0.5 to 2.0 mm in widths from 800 to 1500 mm, depending on steel grade and thickness.. As with other DP steels, Docol DP types offer good formability, and at more extreme levels of forming SSAB recommends forming in the direction transverse to the rolling direction rather than in the longitudinal direction. Also, when shearing or punching Docol DP, cutting clearance is of primary concern, says SSAB. It recommends a cutting clearance of 10 to 12 percent of sheet thickness for Docol DP steels.. SSAB also recently introduced AHSS types for rollformers: Docol Roll, a pair of cold-reduced high-strength steels that SSAB claims ...
Bacterial endocarditis is an infection of the lining of the heart. This infection can occur in anyone who has congenital heart disease.
Whenver I blog these conferences, people want to know what books have been recommended. Before each session weve had a couple of books recommended to us. Here is the list thus far: Evangelism and the Sovereignty of God by J.I. Packer Questioning Evangelism by Randy Newman Doing Things Right in Matters of the Heart by John Ensor The Message of the Old Testament by Mark Dever The Message of the New Testament by Mark Dever Holiness by J.C. Ryle Tonight …. ...
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Over the past few weeks I spent a good deal of time studying the life of General Stonewall Jackson. He is one of the more complex individuals Ive studied-a man who had a strong sense of Gods sovereignty yet was something of a hypochondriac, a man who exhibited a great deal of Christian character who nevertheless also owned slaves. The tension between these things is what makes him so interesting to me. He was by no means a perfect man …. ...
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SSAB is a Nordic and US-based steel company. SSAB offers value added products and services developed in close cooperation with its customers to create a.
Fritsch G, Frank N, Dmytrus J, Frech C, Pichler H, Witt V, Geyeregger R, Scharner D, Trbojevic D, Zipperer E, Printz D, Worel N. Relevance of flow cytometric enumberation of post-thaw leucocytes: influence of temperature during cell staining on viable cell recovery. Vox Sanguinis. (2016) April 1. doi: 10.1111/vox.12398. [Epub ahead of print]. Read More ...
Nonetheless, I think applying these rules to his blood was/is a beautiful color is a bit pedantic. Its still obvious that you wouldnt translate Dracula said that the color of his blood is beautiful as Dīxit Dracula colōrem sanguinis eius pulchrum futūrum esse just because is is in the future relative to said. Rather, is seems timeless even though its conjugated in the present tense. Despite what adrianus said, I would say that either is or was would be fine in English. (Using the present tense in constructions like this does trip me up when I speak Spanish, though, where the rules of tense agreement seem stricter and you must say fue or era, i.e., was ...
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Gilbert JV, Plaut AG, Wright A (January 1991). "Analysis of the immunoglobulin A protease gene of Streptococcus sanguis". ... hinge region of the heavy chain of human immunoglobulin A This enzyme is present in several pathogenic species of Streptococcus ...
Chen L, Ge X, Xu P (2015). "Identifying essential Streptococcus sanguinis genes using genome-wide deletion mutation". Gene ... "Genome-wide essential gene identification in Streptococcus sanguinis". Scientific Reports. 1 (1): 125. Bibcode:2011NatSR...1E. ... "Genome-wide identification of genes essential for the survival of Streptococcus pneumoniae in human saliva". PLOS ONE. 9 (2): ... "Essential Genes in the Core Genome of the Human Pathogen Streptococcus pyogenes". Scientific Reports. 5: 9838. Bibcode: ...
The bacteria Streptococcus mutans and Streptococcus sanguis cause dental caries by metabolising sugars. The term feline ...
... as well as the gram-positive firmicutes Streptococcus sanguinis. Other structures and systems closely related to type IV pili ... "Functional analysis of an unusual type IV pilus in the Gram-positive Streptococcus sanguinis". Molecular Microbiology. 99 (2): ...
Viridans streptococci are a common cause of infective endocarditis in South America. Other Streptococci are also a frequent ... The viridans group includes S. oralis, S. mitis, S. sanguis, S. gordonii and S. parasanguis. The primary habitats for these ... Viridans group streptococci and Streptococcus bovis are usually highly susceptible to penicillin and can be treated with ... Subacute bacterial endocarditis (SBE) is often due to streptococci of low virulence (mainly viridans streptococci) and mild to ...
Hauser-Gerspach, I; Scandiucci de Freitas P; Daniels AU; Meyer J (2008). "Adhesion of Streptococcus sanguinis to glass surfaces ... "Quantification of vital adherent Streptococcus sanguinis cells on protein-coated titanium after disinfectant treatment" (PDF). ...
The first bacteria to attach to these pellicle glycoproteins are gram-positive, aerobic cocci such as Streptococcus sanguinis. ... Other bacteria, including Streptococcus mutans, are able to grow in these colonies. Streptococcus mutans is important, because ...
"Streptococcus sanguinis class Ib ribonucleotide reductase: high activity with both iron and manganese cofactors and structural ...
The anti-HSP60 and anti-HSP65 antibodies that target HSPs produced by Streptococci (including S. sanguinis and S. pyogenes) and ... An involvement of Th1 immunoreactivity against Streptococcus Sanguinis antigen". J. Invest. Dermatol. 126 (7): 1534-40. doi: ...
HSP60 and anti-HSP65 antibodies that target HSPs produced by Streptococci (including S. sanguinis and S. pyogenes) and ... An involvement of Th1 immunoreactivity against Streptococcus Sanguinis antigen". J. Invest. Dermatol. 126 (7): 1534-40. doi: ... sanguinis has been found to have a homologous antigenicity.[20] ...
Streptococcus mutans, mitis, sanguis or milleri). Other strains of streptococci can cause subacute endocarditis as well. These ... streptococcus viridans) needs a previous heart valve disease to colonize. On the other hand, in cases of acute bacterial ... Malaise Weakness Excessive sweat Fever It is usually caused by a form of Viridans group streptococcus bacteria that normally ... "Antimicrobial treatment of infective endocarditis caused by viridans streptococci highly susceptible to penicillin: historic ...
It was suggested, though not proven, that this gender-biased mortality was caused by Streptococcus sanguinis, a bacterium ...
... oralis Streptococcus pneumoniae Streptococcus pyogenes Streptococcus rattus Streptococcus salivarius Streptococcus sanguis ... Streptococcus avium Streptococcus bovis Streptococcus cricetus Streptococcus faceium Streptococcus faecalis Streptococcus ferus ... Streptococcus gallinarum Streptococcus lactis Streptococcus mitior Streptococcus mitis Streptococcus mutans Streptococcus ... Staphylococcus Staphylococcus aureus Staphylococcus epidermidis Stenotrophomonas maltophilia Streptococcus Streptococcus ...
Streptococcus mutans, Staphylococcus aureus and Streptococcus sanguinis and in gram-positive soil bacterium Bacillus subtilis, ... Two of these, Streptococcus and Staphylococcus, are cocci (sphere-shaped). The remaining organisms are bacilli (rod-shaped) and ... Transformation among gram-positive bacteria has been studied in medically important species such as Streptococcus pneumoniae, ...
... formations in which Streptococcus sanguinis bacteria bind to and surround C. matruchotii to create a corn-cob appearance). C. ...
... but sucrose may be uniquely useful to Streptococcus sanguinis (formerly Streptococcus sanguis) and Streptococcus mutans. ... Oral bacteria such as Streptococcus mutans live in dental plaque and metabolize any free sugars (not just sucrose, but also ... Thus, sucrose could enable S. mutans, S. sanguinis and many other species of bacteria to adhere strongly and resist natural ... Sucrose is particularly dangerous from the point of view of tooth decay because Streptococcus mutans bacteria convert it into a ...
Streptococcus mutans, Staphylococcus aureus and Streptococcus sanguinis and in Gram-positive soil bacterium Bacillus subtilis. ... Transformation in Streptococcus mutans, as well as in many other streptococci, occurs at high cell density and is associated ... However, he discovered that a non-virulent strain of Streptococcus pneumoniae could be made virulent after being exposed to ... For instance, transformation is induced in Streptococcus pneumoniae by the DNA damaging agents mitomycin C (a DNA cross-linking ...
"Genome of the opportunistic pathogen Streptococcus sanguinis". Journal of Bacteriology. 189 (8): 3166-75. doi:10.1128/JB.01808- ... Streptococcus pneumoniae and a group of oral streptococci (Streptococcus viridans or viridans streptococci) display alpha- ... The remaining nonenterococcal group D strains include Streptococcus gallolyticus, Streptococcus bovis and Streptococcus equinus ... "group A strep" and "group B strep"). Table: Medically relevant streptococci (not all are alpha-hemolytic) When alpha-hemolysis ...
Streptococcus sanguinis, closely related to S. mutans and also found in the oral cavity, has been shown to cause Infective ... Rao M, John G, Ganesh A, Jose J, Lalitha MK, John L (November 1990). "Infective endocarditis due to Streptococcus sanguis I ... "Streptococcus mutans and the mutans streptococci. In: The Oral Environment, online tutorial". Archived from the original on ... Oral streptococci have both harmless and harmful bacteria. However, under special conditions commensal streptococci can become ...
"Environmental pH as a factor in the competition between strains of the oral streptococci Streptococcus mutans, S. sanguis, and ... Streptococcus mitior is a species of Streptococcus. It is synonymous of streptococcus mitis. Bowden, G. H.; Hamilton, I. R. ( ... "Evaluation of blood culture media for isolation of pyridoxal-dependent Streptococcus mitior (mitis)". J. Clin. Microbiol. 14 (3 ...
Kilian M (March 2001). "Recommended conservation of the names Streptococcus sanguis, Streptococcus rattus, Streptococcus ... Streptococcus cricetus is a species of Streptococcus. ...
... , formerly known as Streptococcus sanguis, is a Gram-positive facultative anaerobic coccus species of ... The GC content of the S. sanguinis genome is 43.4% (higher than the GC contents of other streptococci). The genome encodes ... Type strain of Streptococcus sanguinis at BacDive - the Bacterial Diversity Metadatabase Biology portal. ... such as Streptococcus mutans. S. sanguinis may gain entrance to the bloodstream when opportunity presents (dental cleanings and ...
... sanguinis group was formerly known as S. sanguinis. Some taxonomists have lumped the S. sanguinis group in with the S. mitis ... Viridans streptococci can be differentiated from Streptococcus pneumoniae using an optochin test, as viridans streptococci are ... The S. sanguinis group includes S. sanguinis, S. parasanguinis, and S. gordonii (14). S. salivarius group The S. salivarius ... Viridans streptococci are identified in cases of neonatal infections. Viridans streptococci have the unique ability to ...
Streptococcus oralis MeSH B03.510.400.800.872.875.700 - Streptococcus sanguis MeSH B03.510.400.800.872.875.750 - Streptococcus ... Streptococcus MeSH B03.510.400.800.872.100 - Streptococcus agalactiae MeSH B03.510.400.800.872.150 - Streptococcus bovis MeSH ... Streptococcus pneumoniae MeSH B03.510.400.800.872.575 - Streptococcus pyogenes MeSH B03.510.400.800.872.750 - Streptococcus ... Viridans streptococci MeSH B03.510.400.800.872.875.475 - Streptococcus milleri group MeSH B03.510.400.800.872.875.475.080 - ...
Streptococcus sanguis Group K - Streptococcus salivarius Group L - Streptococcus dysgalactiae Group M & O - Streptococcus mitis ... Streptococcus agalactiae, Streptococcus halichoeri Group C - Streptococcus equisimilis, Streptococcus equi, Streptococcus ... Streptococcus gallolyticus and Streptococcus infantarius, both members of the Streptococcus bovis group), and two groups that ... Streptococcus suis Other Streptococcus species are classified as 'non-Lancefield streptococci'. Facklam, R. (1 October 2002). " ...
Common and species-specific genes among Streptococcus sanguinis, S. mutans, and S. pneumoniae. Modified after Xu et al. (2007)[ ... Streptococcus pneumoniae and a group of oral streptococci (Streptococcus viridans or viridans streptococci) display alpha ... Group G streptococciEdit. These streptococci are usually, but not exclusively, beta-hemolytic. Streptococcus dysgalactiae is ... Group H streptococciEdit. Group H streptococci cause infections in medium-sized canines. Group H streptococci rarely cause ...
Në hemolizën-α që është karakteristikë për streptococcus pneumoniae dhe një grupi të streptokokeve orale (streptococcus ... Streptokoket viridante (S. mitis, S. sanguis, S. salivarium dhe S. mutans) nuk janë të tretshme në bilë dhe nuk frenohen nga ... Patterson MJ (1996). Streptococcus. In: Baron's Medical Microbiology (Baron S et al, eds.) (bot. 4th). Univ of Texas Medical ... Streptococcus. Rosenbach, 1884 Streptokoku bën pjesë në rendin Lactobacillales, e cila përveç streptokokut përfshinë edhe gjini ...
It was renamed Streptococcus pneumoniae in 1974 because it was very similar to streptococci.[7][11] ... Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ... Streptococcus pneumoniae, or pneumococcus, is a Gram-positive, alpha-hemolytic (under aerobic conditions) or beta-hemolytic ( ... S. pneumoniae can be differentiated from the viridans streptococci, some of which are also alpha-hemolytic, using an optochin ...
... Lehmann and Neumann, 1896. Streptococcus agalactiae (also known as group B streptococcus or GBS) is a ... 2010). Streptococcus agalactiae (group B streptococcus). "In" Mandell GL, Bennett JE, Dolin R (eds). Principles and practice of ... Streptococcus agalactiae is the species designation for streptococci belonging to group B of the Lancefield classification. GBS ... Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ...
Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ...
Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ...
Streptococcus mutans, Staphylococcus aureus and Streptococcus sanguinis and in gram-positive soil bacterium Bacillus subtilis, ... Two of these, Streptococcus and Staphylococcus, are cocci (sphere-shaped). The remaining organisms are bacilli (rod-shaped) and ... Transformation among gram-positive bacteria has been studied in medically important species such as Streptococcus pneumoniae, ...
Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ...
Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ... Streptococcus, Staphylococcus, Listeria, etc.), due to Bacillus coahuilensis and others. A gene concatenation study found ...
Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ...
Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ... Bacteroides and anaerobic streptococci). The exotoxin is commonly found in C. perfringens type A strain and is known as alpha ...
Streptococcus mitis ja Streptococcus bovis endokardiiti. Streptococcus mutans hambakaariest. Pneumokokk (Streptococcus ... S. sanguinis White and Niven 1946. *S. suis (ex Elliot 1966) Kilpper-Bälz & Schleifer 1987 ... Streptokokk Streptococcus. Rosenbach 1884. Streptokokk ehk ahelkokk (Streptococcus) on bakteriperekond.[1] Streptokokkide ... C-grupp: Streptococcus bovis jt.. Fülogeneetiline klassifikatsioon[muuda , muuda lähteteksti]. Streptokokkide fülogeneetiline ...
Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ...
Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ...
... sanguinis[1]. *Streptococcus sinensis[1]. *Streptococcus sobrinus[1]. *Streptococcus suis. *Streptococcus ... Streptococcus is a genus o coccus (spherical) Gram-positive bacteria alangin tae the phylum Firmicutes[3] an the ... LPSN entry for Streptococcus *↑ Ryan KJ, Ray CG, eds. (2004). Sherris Medical Microbiology (4th ed.). McGraw Hill. ISBN 0-8385- ... Taen frae "https://sco.wikipedia.org/w/index.php?title=Streptococcus&oldid=708013" ...
Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ...
Streptococcus ratti. *Streptococcus salivarius. *Streptococcus tigurinus. *Streptococcus thermophilus. *Streptococcus sanguinis ... LPSN entry for Streptococcus *^ a b c d e Hartanto, Mahatmi, Huriawati, Nisa (2001). Kamus Ringkas Kedokteran Stedman Edisi 4. ... Klasifikasi bakteri dari genus Streptococcus disusun berdasarkan sifat-sifat hemolitik yang dimiliki yaitu Streptococcus ... Streptococcus adalah salah satu genus dari bakteri nonmotil yang mengandung sel gram positif, berbentuk buat, oval dan ...
optochin resistant: S. viridans (S. mitis, S. mutans, S. oralis, S. sanguinis, S. sobrinus, milleri group) ... Streptococcus. Alpha hemolytic. optochin susceptible: S. pneumoniae (Pneumococcal infection). ...
S. sanguinis. S. sobrinus. S. suis. S. uberis. S. vestibularis. S. viridans. ... Ang Streptococcus ay isang uri ng pamilya sa bakterya kahariang Protista. Ito ay Gram-negative bacteria. ... Kinuha mula sa "https://tl.wikipedia.org/w/index.php?title=Streptococcus&oldid=1291930" ...
Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ... The first tenet of treatment is to eliminate the streptococcus at a primary, secondary and tertiary level. Strategies involve ... haemolytic Streptococcus[2] and is reported to occur in 20-30% of people with acute rheumatic fever. The disease is usually ... Sydenham's chorea is a result of an autoimmune response that occurs following infection by group A β-hemolytic streptococci[7] ...
... is a disease which can occur as a result of a group A Streptococcus (group A strep) infection.[1] The signs and ... Strep throat[edit]. Typical symptoms of streptococcal pharyngitis (also known as strep throat):[10] ... The rash of scarlet fever, which is what differentiates this disease from an isolated Group A Strep pharyngitis (or strep ... Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ...
Streptococcus sanguis 54 5' GGATG 3' CCTAC 5' ---GGATGN8NN NNNN--- 3' 3' ---CCTACN8NNNNNN --- 5' ... Streptococcus mutans E 5' GGWCC 3' CCWGG 5' ---G GWCC--- 3' 3' ---CCWG G--- 5' Bme216I, CauI, EagMI, FdiI, HgiBI, HgiHIII, ... Streptococcus thermophilus CNRZ368 5' GATC 3' CTAG 5' --- GATC--- 3' 3' ---CTAG --- 5' BscFI, BspFI, BstKTI, CpfI, HacI, MkrAI ... Streptococcus salivarius thermophilus 5' CCWGG 3' GGWCC 5' ---CC WGG--- 3' 3' ---GGW CC--- 5' ApaORI, BseBI, BshGI, BstNI, ...
Prior to 1984, enterococci were members of the genus Streptococcus; thus, E. faecalis was known as Streptococcus faecalis.[24] ... Viridans streptococci: S. mitis. *S. mutans. *S. oralis. *S. sanguinis. *S. sobrinus ... "Transfer of Streptococcus faecalis and Streptococcus faecium to the Genus Enterococcus nom. rev. as Enterococcus faecalis comb ... Enterococcus faecalis - formerly classified as part of the group D Streptococcus system - is a Gram-positive, commensal ...
Lavigne has been legally French from birth, because her father is French and France applies jus sanguinis. She applied for her ... Hart, Courtney (August 13, 2010). "Avril Lavigne Back in the Studio, Has Strep Throat". Kingston Herald. Archived from the ...
Streptococcus sanguinis, formerly known as Streptococcus sanguis, is a Gram-positive facultative anaerobic coccus species of ... The GC content of the S. sanguinis genome is 43.4% (higher than the GC contents of other streptococci). The genome encodes ... Type strain of Streptococcus sanguinis at BacDive - the Bacterial Diversity Metadatabase Biology portal. ... such as Streptococcus mutans. S. sanguinis may gain entrance to the bloodstream when opportunity presents (dental cleanings and ...
... sanguis is believed to be a rare cause of septic arthritis in native joints, it should be considered in the differential ... Acute septic arthritis due to Streptococcus sanguis Med Princ Pract. 2006;15(1):77-9. doi: 10.1159/000089391. ... Objective: To present a case of acute septic arthritis due to Streptococcussanguis, a member of the viridans group streptococci ... S. sanguis was isolated in synovial fluid cultures, and the patient was treated with intravenous cefotaxime for 3 weeks and ...
tr,F0I882,F0I882_STRSA Inositol monophosphatase OS=Streptococcus sanguinis SK115 OX=888810 GN=suhB PE=4 SV=1 ... cellular organisms › Bacteria › Terrabacteria group › Firmicutes › Bacilli › Lactobacillales › Streptococcaceae › Streptococcus ...
Terpenoid backbone biosynthesis - Streptococcus sanguinis [ Pathway menu , Organism menu , Pathway entry , Download KGML , Show ...
Identification and preliminary characterization of a Streptococcus sanguis fibrillar glycoprotein.. E J Morris, N Ganeshkumar, ... Identification and preliminary characterization of a Streptococcus sanguis fibrillar glycoprotein.. E J Morris, N Ganeshkumar, ... Identification and preliminary characterization of a Streptococcus sanguis fibrillar glycoprotein.. E J Morris, N Ganeshkumar, ... Identification and preliminary characterization of a Streptococcus sanguis fibrillar glycoprotein. Message Subject (Your Name) ...
Streptococcus sanguis??. by microbiologyhelp » Fri Dec 20, 2013 10:08 pm Hey guys have i correctly matched up my micro - ... Streptococcus sanguis??. About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics ... Re: Streptococcus sanguis??. by Cepacia » Sat Dec 21, 2013 1:22 pm ...
Formation of trimethylamine from dietary choline by Streptococcus sanguis I, which colonizes the mouth.. Chao CK1, Zeisel SH. ... The formation of trimethylamine by S. sanguis I was enzyme-mediated. Activity was destroyed by heating at 100 degrees C, and ... The enzyme activity that we describe in S. sanguis I is similar to that previously described in the anaerobic bacteria isolated ... only organism with trimethylamine-forming capability isolated from these mixed cultures was identified as Streptococcus sanguis ...
Streptococcus sanguis??. About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics ...
sp,A3CNY7,RL20_STRSV 50S ribosomal protein L20 OS=Streptococcus sanguinis (strain SK36) OX=388919 GN=rplT PE=3 SV=1 ... Streptococcus sanguinis (strain SK36). ,p>This subsection of the ,a href="http://www.uniprot.org/help/names_and_taxonomy_ ... cellular organisms › Bacteria › Terrabacteria group › Firmicutes › Bacilli › Lactobacillales › Streptococcaceae › Streptococcus ...
Streptococcus sanguis, and Streptococcus pneumoniae. ... Patterns Among European Isolates of Streptococcus mitis, ... Streptococcus Pneumoniae Susceptibility Pattern European Isolate Vitro Susceptibility These keywords were added by machine and ...
Previous studies of Streptococcus pneumoniae and Streptococcus mutans have identified functions for the ,100-gene com regulon ... Genetic competence in S. sanguinis requires a quorum sensing system encoded by the early comCDE genes, as well as late genes ... We propose that the different roles of the S. sanguinis, S. pneumoniae, and S. mutans com regulons in virulence can be ... We investigated this possibility in S. sanguinis. Strains deleted for the comCDE or comX master regulatory genes were created. ...
In this study, we used two oral bacterial species, Streptococcus mutans and Streptococcus sanguinis (formerly S. sanguis), as a ... In this study, we used two members of the dental biofilm, Streptococcus mutans and Streptococcus sanguinis (formerly S. sanguis ... Competition and Coexistence between Streptococcus mutans and Streptococcus sanguinis in the Dental Biofilm. Jens Kreth, Justin ... Establishment and symbiosis of Actinomyces viscosus, Streptococcus sanguis and Streptococcus mutans in germfree Osborne-Mendel ...
Strains of Streptococcus sanguis, Streptococcus mitis, Streptococcus mutans, and Actinomyces viscosus were incubated for 2 h in ... Characterization of salivary alpha-amylase binding to Streptococcus sanguis.. F A Scannapieco, E J Bergey, M S Reddy, M J ... Characterization of salivary alpha-amylase binding to Streptococcus sanguis.. F A Scannapieco, E J Bergey, M S Reddy, M J ... Characterization of salivary alpha-amylase binding to Streptococcus sanguis.. F A Scannapieco, E J Bergey, M S Reddy, M J ...
Dextransucrase from Streptococcus sanguis 804: Characterization of the Products. JOSIE A. BEELEY, PHYLLIS M. AYRES ... Dextransucrase from Streptococcus sanguis 804: Characterization of the Products Message Subject (Your Name) has forwarded a ...
Streptococcus sanguis-Induced Platelet Clotting in Rabbits and Hemodynamic and Cardiopulmonary Consequences. Maurice W. Meyer, ... A collagen-like immunodeterminant on the surface of Streptococcus sanguis induces platelet aggregation.J. Immunol.13819873360 ... Involvement of α2-adrenoreceptors and G-proteins in the modulation of platelet secretion in response to Streptococcus sanguis. ... The Streptococcus sanguis platelet aggregation-associated protein: identification and characterization of the minimal platelet- ...
Base excision repair - Streptococcus sanguinis [ Pathway menu , Organism menu , Pathway entry , Download KGML , Show ...
Streptococcal antagonism in oral biofilms: Streptococcus sanguinis and Streptococcus gordonii interference with Streptococcus ... Characterization of Hydrogen Peroxide-Induced DNA Release by Streptococcus sanguinis and Streptococcus gordonii. Jens Kreth,1,* ... Competition and coexistence between Streptococcus mutans and Streptococcus sanguinis in the dental biofilm. J. Bacteriol. 187: ... We present data showing that the oral commensals Streptococcus sanguinis and Streptococcus gordonii release DNA in a process ...
The ATCC Licensed Derivative Emblem, the ATCC Licensed Derivative word mark and the ATCC catalog marks are trademarks of ATCC. Microbiologics, Inc. is licensed to use these trademarks and to sell products derived from ATCC® cultures. Look for the ATCC Licensed Derivative © Emblem for products derived from ATCC© cultures. ...
Streptococcus sanguinis SK36 and its derivatives, Streptococcus gordonii DL1, Streptococcus mutans UA159, and Streptococcus ... Streptococcal antagonism in oral biofilms: Streptococcus sanguinis and Streptococcus gordonii interference with Streptococcus ... Characterization of hydrogen peroxide-induced DNA release by Streptococcus sanguinis and Streptococcus gordonii. J Bacteriol191 ... Streptococcus sanguinis and Streptococcus gordonii are considered health-associated pioneer colonizers within the oral biofilm ...
Role of granulocytes in the prevention and therapy of experimental Streptococcus sanguis endocarditis in rabbits.. M J Meddens ... Role of granulocytes in the prevention and therapy of experimental Streptococcus sanguis endocarditis in rabbits. ... The contributions of granulocytes to the prevention and therapy of Streptococcus sanguis endocarditis with procaine ... Role of granulocytes in the prevention and therapy of experimental Streptococcus sanguis endocarditis in rabbits. ...
... on acid production by Streptococcus mutans and Streptococcus sanguis was studied. Cells were grown in a chemostat under ... on acid production by Streptococcus mutans and Streptococcus sanguis was studied. Cells were grown in a chemostat under ... effects of combinations of fluoride and chlorhexidine on acid production by Streptococcus mutans and Streptococcus sanguis ... effects of combinations of fluoride and chlorhexidine on acid production by Streptococcus mutans and Streptococcus sanguis. ...
The effect of fluoride on adhesion of Streptococcus mutans and Streptococcus sanguis on the dental pure titanium surface ... The effect of immunization with streptococcus mutans on the development of streptococcus mutans streptococcus sanguis and ... Streptococcus salivavius, Streptococcus mitis, and Streptococcus sanguis: an in vitro study. Indian Journal of Dental Research ... Streptococcus salivarius, Streptococcus mitis and Streptococcus sanguis: an in vitro study. Journal of Contemporary Dental ...
Competition and Caries on Enamel of a Dual-Species Biofilm Model with Streptococcus mutans and Streptococcus sanguinis. Natalia ... Dual-species biofilms of Streptococcus mutans and Streptococcus sanguinis on saliva-coated enamel slabs were inoculated in ... Competition and Caries on Enamel of a Dual-Species Biofilm Model with Streptococcus mutans and Streptococcus sanguinis ... Competition and Caries on Enamel of a Dual-Species Biofilm Model with Streptococcus mutans and Streptococcus sanguinis ...
The in vitro effect of treated surfaces on two oral bacteria strains (Streptococcus sanguinis and Lactobacillus salivarius) was ... deposition on titanium surface by electrochemical anodizing process reduces bacterial adhesion of Streptococcus sanguinis and ... deposition on titanium surface by electrochemical anodizing process reduces bacterial adhesion of Streptococcus sanguinis and ...
and emended descriptions of Streptococcus sanguis (White and Niven 1946), Streptococcus oralis (Bridge and Sneath 1982), and ... Parent taxon: Streptococcus Rosenbach 1884 (Approved Lists 1980) Assigned by: White JC, Niven CFJ. Streptococcus S.B.E.: A ... Streptococcus sanguinis corrig. White and Niven 1946 (Approved Lists 1980) orthographically corrected name, validly published. ... Streptococcus S.B.E.: A Streptococcus Associated with Subacute Bacterial Endocarditis. J Bacteriol 1946; 51:717-722. ...
The Microbe collection is a diverse group of mAbs that recognize primarily surface components of prokaryotes including bacteria and viruses
and emended descriptions of Streptococcus sanguis (White and Niven 1946), Streptococcus oralis (Bridge and Sneath 1982), and ... Parent taxon: Streptococcus Rosenbach 1884 (Approved Lists 1980) Assigned by: White JC, Niven CFJ. Streptococcus S.B.E.: A ... Streptococcus sanguis (sic) White and Niven 1946 (Approved Lists 1980) orthographically incorrect name, misspelling. ... corrig.: IJSB 47:909; Streptococcus sanguis (sic). Publication: Trüper HG, De Clari L. Taxonomic note: Necessary correction of ...
Streptococcus sanguinis. OVERVIEW: Streptococcus sanguinis, formerly known as Streptococcus sanguis, is a Gram-positive ... Streptococcus sanguinis. RANK: Species TAXONOMY: Terrabacteria group -> Firmicutes -> Bacilli -> Lactobacillales -> ... The database ranks the pathogenicity of species on a scale of 1 to 4. Streptococcus sanguinis ranks 2 on this scale: Species ... S. sanguinis is a normal inhabitant of the healthy human mouth where it is particularly found in dental plaque, where it ...
A new type of amphipathic antigen was extracted from whole cells of Streptococcus sanguis ATCC 10557 (biotype B, serotype II) ... f Chemical and Immunological Characterization of a Novel Amphipathic Antigen from Biotype B Streptococcus sanguis ... Summary: A new type of amphipathic antigen was extracted from whole cells of Streptococcus sanguis ATCC 10557 (biotype B, ... Chemical and Immunological Characterization of a Novel Amphipathic Antigen from Biotype B Streptococcus sanguis, Page 1 of 1 ...
Streptococcus sanguinis is the most common cause of infective endocarditis (IE). Since the molecular basis of virulence of this ... N2 - Streptococcus sanguinis is the most common cause of infective endocarditis (IE). Since the molecular basis of virulence of ... AB - Streptococcus sanguinis is the most common cause of infective endocarditis (IE). Since the molecular basis of virulence of ... abstract = "Streptococcus sanguinis is the most common cause of infective endocarditis (IE). Since the molecular basis of ...
  • Streptococcus sanguinis, formerly known as Streptococcus sanguis, is a Gram-positive facultative anaerobic coccus species of bacteria and a member of the Viridans Streptococcus group. (wikipedia.org)
  • We propose that the different roles of the S. sanguinis , S. pneumoniae , and S. mutans com regulons in virulence can be understood in relation to the pathogenic mechanisms employed by each species. (plos.org)
  • Apart from caries formation by Mutans group species, oral streptococci generally play a benign or beneficial role within the oral cavity. (plos.org)
  • Oral streptococci are a common cause of IE, with Streptococcus sanguinis frequently reported as the most commonly isolated oral species [5] . (plos.org)
  • This capability also occurs in certain other streptococcal species, and is best characterized in Streptococcus pneumoniae , in which it was first discovered. (plos.org)
  • In this study, we used two oral bacterial species, Streptococcus mutans and Streptococcus sanguinis (formerly S. sanguis ), as a model to probe the possible mechanisms of competition/coexistence between different species which occupy the same ecological niche. (asm.org)
  • Purified alpha-amylase from human parotid saliva was radiolabeled and found to bind to strains of S. sanguis genotypes 1 and 3 and S. mitis genotype 2, but not to strains of other species of oral bacteria. (asm.org)
  • In dual-species cultures, the oral commensals Streptococcus sanguinis and Streptococcus gordonii release eDNA in a manner dependent on pyruvate oxidase (Pox) generation of hydrogen peroxide (H 2 O 2 ) under the control of ambient oxygen ( 23 ). (pubmedcentralcanada.ca)
  • Our laboratory showed previously that, under aerobic conditions, S. sanguinis can produce H 2 O 2 to inhibit the growth of bacterial species that promote dental caries. (asm.org)
  • Both species are known to combat actively the growth of cariogenic and periodontal pathogens, such as Streptococcus mutans and Porphyromonas gingivalis , via the production of H 2 O 2 ( 4 , 5 ). (asm.org)
  • S. mutans followed by S. sanguinis (Sm-Ss), S. sanguinis followed by S. mutans (Ss-Sm), S. mutans and S. sanguinis inoculated at the same time (Sm=Ss), and the single-species controls S. mutans followed by S. mutans (Sm-Sm) and S. sanguinis followed by S. sanguinis (Ss-Ss). (asm.org)
  • Initial enamel adherence with S. sanguinis seems to induce more intense competition against typically caries-inducing species. (asm.org)
  • Streptococcus sanguinis, a Gram-positive bacterium, is one of the most abundant species in oral biofilm. (vcu.edu)
  • Completion of the genome sequence of Streptococcus sanguinis SK36 necessitates tools for further characterization of this species. (microbiologyresearch.org)
  • This study investigated the effect of nicotine on mono- and dual-species growth of S. mutans and S. sanguinis. (elsevier.com)
  • The results indicate that nicotine has no significant effect on S. sanguinis grown in either mono- or dual-species biofilms. (elsevier.com)
  • With the addition of nicotine, the level of S. mutans biofilm was significantly enhanced as the nicotine concentration increased over the level of S. sanguinis in dual-species biofilm, and we also got the same result from the fluorescence in situ hybridization detecting the two bacteria grown in biofilm formation. (elsevier.com)
  • Infections with bacteria of the species STREPTOCOCCUS PNEUMONIAE. (bioportfolio.com)
  • A species of Streptococcus that is pathogenic in fish and may also cause disease in humans who routinely handle infected fish. (bioportfolio.com)
  • In addition to streptococcal pharyngitis (strep throat), certain Streptococcus species are responsible for many cases of pink eye, meningitis, bacterial pneumonia, endocarditis, erysipelas, and necrotizing fasciitis (the 'flesh-eating' bacterial infections). (wikipedia.org)
  • citation needed] Species of Streptococcus are classified based on their hemolytic properties. (wikipedia.org)
  • 19 ) studied 104 isolates of VS recovered from blood cultures and found that Streptococcus oralis and S. mitis were the two species most frequently isolated from patients in the hematology unit, whereas species of the anginosus group were the most common species isolated from the general hospital population. (asm.org)
  • The genome of ''S. agalactiae'' is very similar to other ''Streptococcus'' species such as ''S. pyogenes'' and ''S. pneumoniae'', but differs in several metabolic pathways and membrane transport systems. (kenyon.edu)
  • We compared the clinical features of pediatric KIE cases with those of Streptococcus species IE (StIE) and Staphylococcus aureus IE (SaIE). (cdc.gov)
  • 4 Streptococcus mutans and Lactobacillus species are considered to be principal indicator organisms of those of aciduric bacteria responsible for caries. (aappublications.org)
  • ABPs were detected in culture supernatants of 27 of 59 strains representing 13 oral Streptococcus species screened using the amylase-ligand binding assay. (springer.com)
  • Summary: A new type of amphipathic antigen was extracted from whole cells of Streptococcus sanguis ATCC 10557 (biotype B, serotype II) by the phenol/water method. (microbiologyresearch.org)
  • We present data showing that the oral commensals Streptococcus sanguinis and Streptococcus gordonii release DNA in a process induced by pyruvate oxidase-dependent production of hydrogen peroxide (H 2 O 2 ). (pubmedcentralcanada.ca)
  • Surprisingly, S. sanguinis and S. gordonii cell integrity appears unaffected by conditions that cause autolysis in other eDNA-producing bacteria. (pubmedcentralcanada.ca)
  • Exogenous H 2 O 2 causes release of DNA from S. sanguinis and S. gordonii but does not result in obvious lysis of cells. (pubmedcentralcanada.ca)
  • For example, Streptococcus sanguinis and Streptococcus gordonii are considered health-associated pioneer colonizers within the oral biofilm. (asm.org)
  • Kilian M, Mikkelsen L, Henrichsen J. Taxonomic study of viridans streptococci: description of Streptococcus gordonii sp. (dsmz.de)
  • Taxonomic study of viridans streptococci: Description of Streptococcus gordonii sp. (straininfo.net)
  • 1991. Delineation of a segment of adsorbed salivary acidic proline-rich proteins which promotes adhesion of Streptococcus gordonii to apatitic surfaces. (springer.com)
  • As a member of the normal human oral microbiota, the fungus Candida albicans is often found in association with Streptococcus gordonii , a member of dental plaque forming bacteria. (frontiersin.org)
  • In this study, we used two members of the dental biofilm, Streptococcus mutans and Streptococcus sanguinis (formerly S. sanguis ) ( 22 ), as a model to investigate the interspecies interactions leading to competition and coexistence. (asm.org)
  • 2. Kreth J , Merritt J , Shi W , Qi F . Competition and coexistence between Streptococcus mutans and Streptococcus sanguinis in the dental biofilm. (microbiologyresearch.org)
  • Both Streptococcus mutans and Streptococcus sanguinis are normal bacterial inhabitants of dental plaque. (elsevier.com)
  • The enzyme activity that we describe in S. sanguis I is similar to that previously described in the anaerobic bacteria isolated from intestinal flora. (nih.gov)
  • Promoting early colonization by health-associated bacteria such as S. sanguinis could help to maintain oral health, delaying dysbiosis. (asm.org)
  • The in vitro effect of treated surfaces on two oral bacteria strains (Streptococcus sanguinis and Lactobacillus salivarius) was studied with viable bacterial adhesion measurements and growth curve assays. (upc.edu)
  • S. sanguinis, like many Gram-positive bacteria, has multiple SPases I. The objective of this project is to investigate the distinctive role that SPase I plays in biofilm formation in S. sanguinis. (vcu.edu)
  • The antimicrobial activity of an extract from stems of the cashew tree , Anacardium occidentale Linn, was evaluated on three cultures of bacteria , Streptococcus mitis , Streptococcus mutans , Streptococcus sanguis , found in dental plaque . (bvsalud.org)
  • Caries and periodontitis are dental diseases caused by bacteria of S. sanguinis , S. mutans, and E. faecalis with three main etiological factors of the host, substrate, and time. (benthamopen.com)
  • against oral bacteria of E.faecalis , S. mutans , and S. sanguinis . (benthamopen.com)
  • The concentrations of single and mixture extracts were adjusted for antibacterial assay against bacteria of E. faecalis , S. mutans , and S. sanguinis strains through agar well diffusion assay with chlorhexidine, fosfomycin, and quercetin used as positive controls. (benthamopen.com)
  • The extracts of Buah Merah demonstrated antibacterial activity against oral bacteria of E. faecalis , S. mutans, and S. sanguinis and gave important information for further in vivo clinical studies to determine the exact dosages and its effectiveness in practical application. (benthamopen.com)
  • Streptococcus is a genus of gram-positive coccus (plural cocci) or spherical bacteria that belongs to the family Streptococcaceae, within the order Lactobacillales (lactic acid bacteria), in the phylum Firmicutes. (wikipedia.org)
  • In 1984, many bacteria formerly grouped in the genus Streptococcus were separated out into the genera Enterococcus and Lactococcus. (wikipedia.org)
  • The viridans streptococci are a large group of commensal bacteria that are either alpha-hemolytic, producing a green coloration on blood agar plates (hence the name "viridans", from Latin vĭrĭdis, green), or nonhemolytic. (wikipedia.org)
  • Streptococci are nonmotile, Gram-positive, nonsporeforming bacteria, that live in pairs or chains of varying length. (kenyon.edu)
  • Streptococcus is a genus of coccus (spherical) Gram-positive bacteria belonging to the phylum Firmicutes [3] and the order Lactobacillales (lactic acid bacteria). (wikipedia.org)
  • Viridans streptococci are the predominant commensal bacteria colonizing the oral cavity and dental plaque biofilm. (springer.com)
  • Streptococcus salivarius subsp. (atcc.org)
  • VS can be divided into five major groups on the basis of the 16S ribosomal DNA (rDNA) sequences: (i) the mutans group, (ii) the salivarius group, (iii) the anginosus group (also called the milleri group), (iv) the sanguinis group, and (v) the mitis group ( 9 ). (asm.org)
  • Streptococcus salivarius is present in the mouth and upper respiratory tract a few hours after birth. (dentaltown.com)
  • Rubin et al could trace to a single anesthesiologist Streptococcus salivarius as the responsible agent for six cases of meningitis following spinal anesthesia, and the Centers for Disease Control and Prevention (CDC) reported five cases in Ohio and one case in New York between 2008 and 2009 with the same organisms. (nysora.com)
  • S. sanguinis may gain entrance to the bloodstream when opportunity presents (dental cleanings and surgeries) and colonize the heart valves, particularly the mitral and aortic valves, where it is the most common cause of subacute bacterial endocarditis. (wikipedia.org)
  • Except for reported associations with bacterial endocarditis ( 37 ), S. sanguinis is considered a benign, or even a beneficial, bacterium with regard to dental caries ( 2 , 5 ). (asm.org)
  • Streptococcus S.B.E.: A Streptococcus Associated with Subacute Bacterial Endocarditis. (dsmz.de)
  • 0.01) and recovered bacterial loads (log 10 CFU, P = 0.01), suggesting that Nt5e contributes to the virulence of S. sanguinis in vivo. (umn.edu)
  • The ethyl acetate extract showed highest antibacterial activity against three oral bacterial of E. faecalis , S. mutans , and S. sanguinis with inhibition zones values of 9.3, 12.3, and 17.9 mm at 40%, respectively, together with their MIC and MBC values of 1250 & 2500, 0.312 & 0.625, and 0.312 & 0.625 ppm, respectively. (benthamopen.com)
  • citation needed] Beta-hemolytic streptococci are further classified by Lancefield grouping, a serotype classification (that is, describing specific carbohydrates present on the bacterial cell wall). (wikipedia.org)
  • These results suggest that the com regulon is not required for S. sanguinis infective endocarditis virulence in this model. (plos.org)
  • S. sanguinis virulence for IE has been examined in a number of studies [6] - [11] but very few genes or functions required for virulence have been identified. (plos.org)
  • Since the molecular basis of virulence of this oral commensal bacterium remains unclear, we searched the genome of S. sanguinis for previously unidentified virulence factors. (umn.edu)
  • In conclusion, we now show for the first time that streptococcal Nt5e modulates S. sanguinis-induced platelet aggregation and may contribute to the virulence of streptococci in experimental IE. (umn.edu)
  • Streptococcus sanguinis is a cause of infective endocarditis and has been shown to require a manganese transporter called SsaB for virulence and O 2 tolerance. (syr.edu)
  • GGS_124 and GAS, but not other streptococci, shared a number of virulence factor genes, including genes encoding streptolysin O, NADase, and streptokinase A, distantly related to SIC (DRS), suggesting the importance of these factors in the development of invasive disease. (biomedsearch.com)
  • Role of DNA base excision repair in the mutability and virulence of Streptococcus mutans. (rochester.edu)
  • Role of Clp proteins in expression of virulence properties of Streptococcus mutans. (rochester.edu)
  • Role of unsaturated fatty acid biosynthesis in virulence of Streptococcus mutans. (rochester.edu)
  • Streptococcus pneumoniae , Streptococcus agalactiae 2603 V/R , Streptococcus mutans , Streptococcus thermophilus CNRZ1066 , Streptococcus thermophilus LMG 18311 , and Streptococcus pyogenes . (kenyon.edu)
  • Electron micrograph of Streptococcus pyogenes . (kenyon.edu)
  • equisimilis (SDSE) causes invasive streptococcal infections, including streptococcal toxic shock syndrome (STSS), as does Lancefield group A Streptococcus pyogenes (GAS). (biomedsearch.com)
  • Identification and preliminary characterization of a Streptococcus sanguis fibrillar glycoprotein. (asm.org)
  • Characterization of salivary alpha-amylase binding to Streptococcus sanguis. (asm.org)
  • Erickson, PR & Herzberg, MC 1990, ' Purification and partial characterization of a 65-kDa platelet aggregation-associated protein antigen from the surface of Streptococcus sanguis ', Journal of Biological Chemistry , vol. 265, no. 24, pp. 14080-14087. (umn.edu)
  • Streptococcus sanguinis is an important component of dental plaque and a leading cause of infective endocarditis. (plos.org)
  • Consequently, people with prior heart valve disease are at risk for infective endocarditis associated most frequently with S. sanguis bacteremias ( 11 ). (asm.org)
  • Streptococcus sanguinis is the most common cause of infective endocarditis (IE). (umn.edu)
  • Streptococcus sanguinis is a major component of the oral flora and an important cause of infective endocarditis. (datamed.org)
  • We describe a rare case of pulmonary embolism and infarction followed by a haemothorax due to infective endocarditis of the tricuspid valve caused by Streptococcus sanguinis. (elsevier.com)
  • Conclusion: When treating infective endocarditis caused by S. sanguinis, clinicians should include haemothorax in the differential diagnosis of patients complaining of sudden chest pain. (elsevier.com)
  • Viridans group streptococci (VS) are the most common etiologic agents of subacute infective endocarditis and are capable of causing a variety of pyogenic infections ( 9 ). (asm.org)
  • Streptococci are a diverse genus, infecting a barrage of different animals, including humans, with diseases ranging from strep throat to necrotizing fasciitis. (kenyon.edu)
  • A significant microbial shift in composition was observed: genus Streptococcus and Veillonella increased while Corynebacterium, Haemophilus, Leptotrichia, Cardiobacterium and Capnocytophaga decreased ( p ≤ 0.001). (frontiersin.org)
  • The purpose of the current study was to evaluate the potential of Javanese turmeric ethanol extract in the inhibition of the formation of Streptococcus sanguinis and Porphyromonas gingivalis biofilms, individually and in combination. (innovareacademics.in)
  • Javanese turmeric has the potential to inhibit the formation of S. sanguinis and P. gingivalis biofilms. (innovareacademics.in)
  • Streptococcus mutans Biofilms. (innovareacademics.in)
  • 7. Tu Y, Huang W, Pan Z, Hu H, Chen H. Effect of Streptococcus sanguinis/Porphyromonas gingivalis single and combined biofilms upon platelet aggregation. (innovareacademics.in)
  • S. sanguinis biofilms cultivated in either the European Biofilm Reactor (EUREBI) or in 24 well plates were treated with argon plasma. (egms.de)
  • Future investigations using reduced distances between plasma source and biofilm, various compositions of plasma and alternative plasma sources will contribute to further optimization of the efficacy against S. sanguinis biofilms. (egms.de)
  • To study and identify biofilm genes in S. sanguinis, biofilm formation of 51 mutants was compared with the wild type SK36 strain using crystal violet (CV) staining in a microtiter plate. (vcu.edu)
  • The genome sequence of S. sanguinis strain SK36 was recently determined. (datamed.org)
  • Role of granulocytes in the prevention and therapy of experimental Streptococcus sanguis endocarditis in rabbits. (asm.org)
  • The contributions of granulocytes to the prevention and therapy of Streptococcus sanguis endocarditis with procaine benzylpenicillin (PBP) was investigated in rabbits. (asm.org)
  • Administration of 3,000 IU of PBP before inoculation with S. sanguis retarded the course of the endocarditis for only 24 h whether granulocytes were normal or depressed in numbers. (asm.org)
  • Platelet aggregation in vitro occurs after a lag time of 1.5 to 15 min depending on the platelet donor and the strain of S. sanguis ( 24 , 25 , 50 ). (asm.org)
  • Given the ability to induce aggregation in vitro and perhaps cause coagulation-associated diseases, we hypothesized that a platelet aggregating strain of S. sanguis could induce platelet aggregation or clots in the circulation. (asm.org)
  • Overall design: Transcriptional analysis of S. sanguinis strain JFP41 cells 0 to 30 min after treatment with CSP. (datamed.org)
  • The purpose of this study was to determine in vitro penetration of Streptococcus sanguis and Prevotella intermedia into dentinal tubules, Samples obtained from human teeth were inoculated with a strain of S. sanguis (NCTC 7853) and P. intermedia (NCTC 93336) for 20 days. (marmara.edu.tr)
  • Therefore, Agg + S. sanguis induced platelet aggregation in vitro. (asm.org)
  • Yet it is unclear whether S. sanguis induces platelet aggregation in vivo. (asm.org)
  • These platelet aggregation-associated proteins (PAAPs) are recovered in cell-free preparations obtained from cells of S. sanguis after 5 min of sonic or limited trypsin treatment. (umn.edu)
  • Pretreatment of platelet-rich plasma with these soluble preparations selectively inhibits platelet aggregation in response to S. sanguis cells. (umn.edu)
  • In their native state on the cell wall of platelet-interactive strains of S. sanguis, platelet aggregation-associated proteins are probably assembled on fibrils as polyvalent agonists. (umn.edu)
  • nov. and emended descriptions of Streptococcus sanguis (White and Niven 1946), Streptococcus oralis (Bridge and Sneath 1982), and Streptococcus mitis (Andrewes and Horder 1906). (dsmz.de)
  • Streptococcus sanguinis White and Niven emend. (atcc.org)
  • Turnover of the cell wall peptidoglycan fraction of six different strains of Streptococcus mutans and eight different strains of Streptococcus sanguis was examined. (geoscience.net)
  • Strains of Streptococcus sanguis, Streptococcus mitis, Streptococcus mutans, and Actinomyces viscosus were incubated for 2 h in freshly collected human submandibular-sublingual saliva (HSMSL) or parotid saliva (HPS), and bound salivary components were eluted with 2% sodium dodecyl sulfate. (asm.org)
  • The adhesion of Streptococcus mutans and Streptococcus sanguis on the dental pure titanium surface were examined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay after soaked in artificial saliva containing different concentrations of sodium fluoride for 24 h. (eurekamag.com)
  • Reactions between selected strains of oral streptococci and saliva were studied spectrophotometrically. (nih.gov)
  • El presente trabajo , tiene como objetivo evaluar la influencia de la prótesis parcial removible sobre elnivel de Streptococcus mutans y Streptococcus sanguis en la saliva de un grupo de pacientes parcialmente edéntulos. (bvsalud.org)
  • Construction and evaluation of new drug-resistance cassettes for gene disruption mutagenesis in Streptococcus pneumoniae , using an ami test platform. (microbiologyresearch.org)
  • Functional profiling in Streptococcus mutans: construction and examination of a genomic collection of gene deletion mutants. (rochester.edu)
  • Mutation of the NADH oxidase gene (nox) reveals an overlap of the oxygen- and acid-mediated stress responses in Streptococcus mutans. (rochester.edu)
  • Influence of apigenin on gtf gene expression in Streptococcus mutans UA159. (rochester.edu)
  • Complete genome sequencing and analysis of a Lancefield group G Streptococcus dysgalactiae subsp. (biomedsearch.com)
  • BACKGROUND: Streptococcus dysgalactiae subsp. (biomedsearch.com)
  • Streptococcus oralis subsp. (expasy.org)
  • Our findings revealed that translation was the functional category in S. sanguinis that was most enriched in essential proteins. (microbiologyresearch.org)
  • Despite the ampicillin-induced stress, the transcriptional up-regulation of amino acid-tRNA synthetases and proteomic elevation of amino acid biosynthesis enzymes favoured the enriched components of essential proteins revealing 'proteomic signatures' that can be used to bridge the genotype-phenotype gap of S. sanguinis under ampicillin stress. (microbiologyresearch.org)
  • In conclusion, XG2_0351 reduces biofilm formation in S. sanguinis but further research is necessary to elucidate the specific proteins that are involved. (vcu.edu)
  • S. sanguinis is a normal inhabitant of the healthy human mouth where it is particularly found in dental plaque, where it modifies the environment to make it less hospitable for other strains of Streptococcus that cause cavities, such as Streptococcus mutans. (wikipedia.org)
  • Certain strains of Streptococcus sanguis , a microorganism most commonly found in human dental plaque, induce human platelets in plasma to aggregate in vitro ( 17 , 23-25 , 52 ). (asm.org)
  • The oral viridans streptococci are pioneer colonizers of dental plaque biofilm. (springer.com)
  • Collagen and S. sanguis induce in vitro platelet responses similarly ( 13 ). (asm.org)
  • To test this hypothesis, we first identified strains of S. sanguis that differed in their ability to induce rabbit platelets to aggregate in vitro ( 26 ). (asm.org)
  • This production of H 2 O 2 by S. sanguinis also induces the release of eDNA, which is essential for proper biofilm formation. (asm.org)
  • Determining how S. sanguinis releases DNA is thus essential to understand biofilm formation in the oral cavity. (asm.org)
  • Clarifying the vii role that SPase I plays in reduced biofilm formation in S. sanguinis will give a better understanding of the biofilm formation mechanism. (vcu.edu)
  • The tested Prevotella strains and Fusobacterium nucleatum showed the highest sensitivity, while streptococci and Lactobacillus acidophilus were most resistant to AX. (frontiersin.org)
  • Genetic competence in S. sanguinis requires a quorum sensing system encoded by the early comCDE genes, as well as late genes controlled by the alternative sigma factor, ComX. (plos.org)
  • S. sanguinis exhibits genetic competence [12] , [13] , the ability to acquire and incorporate exogenous DNA into its genome. (plos.org)
  • We sought to examine S. sanguinis genetic competence, to characterize the global transcriptional response to competence induction, and to compare our results with those obtained from previous analyses of other streptococci. (datamed.org)
  • To present a case of acute septic arthritis due to Streptococcussanguis, a member of the viridans group streptococci. (nih.gov)
  • The feasibility of sequence analysis of the 16S-23S ribosomal DNA (rDNA) intergenic spacer (ITS) for the identification of clinically relevant viridans group streptococci (VS) was evaluated. (asm.org)
  • The most common IE pathogens in children are gram-positive cocci, especially the α-hemolytic viridans group streptococci (e.g. (cdc.gov)
  • 1 year of age, the viridans group streptococci are the most commonly isolated organisms. (cdc.gov)
  • To test the hypothesis that aggregation occurs in vivo, S. sanguis (Agg + or Agg − suspension) was infused intravenously into rabbits. (asm.org)
  • Cells of Streptococcus sanguis express a collagen-like immunodeterminant (class II antigen) on their cell walls that induces aggregation of platelets in plasma. (umn.edu)
  • The 65-kDa (p65) antigen isolated by immunoaffinity chromatography had 50-fold greater specific inhibitory activity in S. sanguis-induced PRP aggregation than the original tryptic digest and about 1.4 times that recovered by sequential column chromatography. (umn.edu)
  • Epidemiological studies showed that early colonization and high levels of S. sanguinis in an infant's oral cavity correlate with significantly delayed colonization by S. mutans ( 5 ). (asm.org)
  • Early studies with germ-free rats also demonstrated a so-called "competitive exclusion" between S. mutans and S. sanguinis depending on the sequence of inoculation ( 25 ). (asm.org)
  • Genetic and biochemical analyses reveal that these interspecies interactions are possibly mediated through a well-regulated production of chemicals, such as bacteriocins (produced by S. mutans ) and hydrogen peroxide (produced by S. sanguinis ). (asm.org)
  • Under anaerobic conditions, S. sanguinis does not produce H 2 O 2 but DNA is still released. (asm.org)
  • The purpose of this study was to determine antibacterial and antibiofilm effects of quercetin on two oral microbes, S. sanguinis and S. mutans in anaerobic condition. (seronijihou.com)
  • An anaerobic flow chamber model accomplished initial adhesion of S. sanguinis on protein-coated titanium. (unibas.ch)
  • Like certain other pathogens, S. sanguinis possesses aerobic class Ib (NrdEF) and anaerobic class III (NrdDG) ribonucleotide reductases (RNRs) that perform the essential function of reducing ribonucleotides to deoxyribonucleotides. (syr.edu)
  • The PFL in streptococcus mutans was not converted into an oxygen-tolerant inactive form by anaerobic starvation, and after exposure of the cells to oxygen the PFL could not be reactivated. (elsevier.com)
  • These findings suggest that S. mutans can produce acids rapidly under anaerobic conditions because of its capacity to keep PFL active and that S. sanguis can protect its sugar metabolism from oxygen impairment because of its interconversion of PFL. (elsevier.com)
  • Regulation of fatty acid biosynthesis by the global regulator CcpA and the local regulator FabT in Streptococcus mutans. (rochester.edu)
  • Cardiolipin biosynthesis in Streptococcus mutans is regulated in response to external pH. (rochester.edu)
  • During competence development, Streptococcus pneumoniae DNA is released by lysis of a subpopulation of cells ( 30 , 42 ). (pubmedcentralcanada.ca)
  • However, significant differences in the S. sanguinis competence system relative to that of other streptococci were noted. (datamed.org)
  • S. sanguinis possesses a comparatively limited early response, which may define a minimal competence regulatory circuit. (datamed.org)
  • Although S. sanguis is believed to be a rare cause of septic arthritis in native joints, it should be considered in the differential diagnosis of this disorder, especially in patients with recent treatment of severe dental caries and periodontal disease. (nih.gov)
  • S. sanguis apparently causes thrombotic infection of damaged heart valves involving the accumulation of platelets and fibrin ( 2 , 10 , 26 ) and expression of tissue factor ( 3 , 4 , 7 ). (asm.org)
  • Streptolysin O is an oxygen-sensitive cytotoxin, secreted by most group A Streptococcus (GAS), and interacts with cholesterol in the membrane of eukaryotic cells (mainly red and white blood cells, macrophages, and platelets), and usually results in beta-hemolysis under the surface of blood agar. (wikipedia.org)