Streptococcus dysgalactiae is a gram positive, beta-haemolytic, coccal bacterium belonging to the family Streptococcaceae. It is capable of infecting both humans and animals, but is most frequently encountered as a commensal of the alimentary tract, genital tract, or less commonly, as a part of the skin flora. The clinical manifestations in human disease range from superficial skin-infections and tonsillitis, to severe necrotising fasciitis and bacteraemia. The incidence of invasive disease has been reported to be rising. Several different animal species are susceptible to infection by S.dysgalactiae, but bovine mastitis and infectious arthritis in lambs (joint ill) have been most frequently reported. Streptococcus dysgalactiae is currently divided into the subspecies Streptococcus dysgalactiae subspecies equisimilis (SDSE) and Streptococcus dysgalactiae subspecies dysgalactiae (SDSD); the former mostly associated with human disease, and the latter almost exclusively encountered in veterinary ...
Streptococcus dysgalactiae subsp. equisimilis (SDSE) causes invasive streptococcal infections, including streptococcal toxic shock syndrome (STSS), as does Lancefield group A Streptococcus pyogenes (GAS). We sequenced the entire genome of SDSE strain
AIM: To evaluate Lancefield grouping and caramel smell for presumptive identification of the Streptococcus milleri group, and to find whether Lancefield group, species, or protein profile correlated with virulence or infection site. METHODS: Prospective studies were made of 100 consecutive streptococcal isolates in blood cultures or pus from 100 patients in whom the severity of infection was categorised as serious, moderate, or not significant. The usefulness of Lancefield group and the caramel smell for presumptive identification was examined, and the relation of the S milleri species, Lancefield group, and SDS-PAGE protein analysis to severity of infection and infection site was investigated. Lower respiratory tract and genital tract specimens, strict anaerobes, group D streptococci, and strains identified as Streptococcus pneumoniae, Streptococcus pyogenes, or Streptococcus agalactiae were excluded. RESULTS: Most streptococci occurring in pure or significant growth density were S milleri ...
Cubicin® is a lipopeptide antibiotic for Gram-positive infections, particularly Staph and MRSA infections and the following infections: Complicated skin and skin structure infections (cSSSI) caused by susceptible isolates of the following Gram-positive bacteria: Staphylococcus aureus (including methicillin-resistant isolates), Streptococcus pyogenes, Streptococcus agalactiae, Streptococcus dysgalactiae subspecies equisimilis, and Enterococcus faecalis (vancomycin-susceptible isolates only). S. aureus are bloodstream infections (bacteremia), including those with right-sided infective endocarditis, caused by methicillin-susceptible and methicillin-resistant isolates ...
Streptococcus equinus is a Gram-positive, nonhemolytic, nonpathogenic, lactic acid bacterium of the genus Streptococcus. It is the principal Streptococcus found in the alimentary canal of a horse, and makes up the majority of the bacterial flora in horse feces. S. equinus is seldom found in humans. S. equinus, which is always abundant in the feces of horses, was first isolated from the air in 1906 by Andrewes and Horder due to the presence of dried horse manure, common in most cities at the time. In 1910, Winslow and Palmer verified the findings of Andrewes and Horder and reported further findings in both cattle and human feces. After the bacterium was discovered in 1906, the term Streptococcus equinus became a convenient "wastebasket" into which nonhemolytic streptococci that do not ferment lactose and mannitol were categorized. The classification of all streptococci that fail to ferment lactose into one large category has made the classification of S. equinus very difficult. However, as shown ...
The gene sequence for the circular chromosomes of twelves pecies of streptococci have been sequenced: Streptococcus pneumoniae, Streptococcus agalactiae 2603 V/R , Streptococcus mutans, Streptococcus thermophilus CNRZ1066, Streptococcus thermophilus LMG 18311, and Streptococcus pyogenes. The genome of Streptococcus pyogenes is 1,852,442 base pairs long, containing 1,752 predicted protein-coding genes. Researchers have identified more than 40 virulence-associated genes on the S. pyogenes genome, which fits in with its ability to cause a variety of human diseases. Researchers also found numerous genes that encode proteins that aid in "molecular mimicry," when the bacterium disguises itself by posing as a cell that is a part of the host. The genome of S. pneumoniae is 2,038,615 base pairs long with 2,043 predicted protein-coding regions. S. pneumoniae has a high capacity for DNA uptake, and consequently its genome contains many genes that are most likely derived from other bacteria. More than 53% ...
Definition : Molecular assay reagents intended to identify group C Streptococcus (e.g., S. equisimilis, S. zooepidemicus, S. dysgalactiae) a species of coccoid bacterium by detecting specific nucleic-acid information of the target bacteria. Group C Streptococcus may cause endocarditis, bacteremia, pneumonia, meningitis, and mild upper respiratory tract infections; S. equisimilis is the most common group C bacterial pathogen in humans, but other group C species such as S. zooepidemicus and S. dysgalactiae may also cause infections.. Entry Terms : "Streptococcus dysgalactiae Detection/Identification Reagents" , "Strepcoccus zooepidemicus Detection/Identification Reagents" , "Streptococcus equisimilis Detection/Identification Reagents" , "Streptococcus C Detection/Identification Reagents" , "Meningococcal Meningitis Diagnostic Reagents" , "Bacterial Endocarditis Diagnostic Reagents" , "Reagents, Molecular Assay, Infection, Bacteria, Streptococcus C". UMDC code : 21674 ...
The letter before the laboratory description, e.g. "Group A or Group B etc.", refers to a molecule or antigen on the bacterial cell wall. It was first discovered in 1933 by Rebecca Lancefield, an American Microbiologist born in 1895, and became known as Lancefield grouping. Lancefield grouping only applies to Beta-haemolytic streptococci. Do not group the alpha or non-haemolytic streptococci; in these bacteria the grouping antigens may lead to a misidentification (and false significance) of the microorganism e.g. a non-haemolytic streptococcus that groups with an "A" is not S. pyogenes and does not have the same significance as S. pyogenes. If you do this you will end up mismanaging patients! Take my word for it… dont group alpha and non-haemolytic streptococci… just dont do it, its wrong ...
Kikuchi, T.; Desmazeaud, M.; Bergere, J.L., 1973: Proteolytic action of lactic streptococci. I. The action of mesophilic lactic streptococci on N constituents of milk
United States Patent Hajime Okamoto; Susumu Shoin; Saburo Koshimura, all of Kanazawa-shl, Japan [72] Inventors Kanazawa-shi, Japan [32] Priority Mar. 1, 1968 J p [31] 43/ 13043 [54] PROCESS FOR THE CULTIVATION OF HEMOLYTIC STREPTOCOCCI 5 Claims, No Drawings [52] U.S. Cl 195/96, 195/1 14, 424/493 [51] Int. Cl. ....A6lk 21/00, Cl2d 1/20 [50] Field of Search 195/66, 96, 66 B, 1 I4, 30 [56] References Cited UNITED STATES PATENTS 3,477,914 ll/l969 Okamoto etal. l95/96 Primary ExaminerAlvin E. Tanenhultz Assistant Examiner Robert M. Elliott AtlomeyBrowdy and Neimark ABSTRACT: A process for the cultivation of hemolytic streptococci by cultivating hemolytic streptococci (e.g., Streptococcus hemolylicus ATCC 21060) in a meat infusion broth or the medium containing an extract containing watersoluble components in a yeast autolysate as a major component of pH 7.0-7.5 containing oxaloacetic acid or salts thereof and, if desired, ribonucleic acid or ribonuclease core at about 37C. for 14-20 hours, in order ...
Lancefield group G Streptococcus canis is a component of the normal urogenital and pharyngeal flora of the cat. It is also frequently implicated in epizootics of severe disease in closed cat colonies and animal shelters. Given the importance of S canis as a feline pathogen and relative lack of published information on characteristics potentially associated with virulence, the authors have compared isolates from healthy and diseased cats in New York and California using fermentation profiles (biotype) and ScM sequences. With few exceptions, isolates associated with disease were biotype 1. Four alleles of scm were identified of which type 1 dominated in diseased cats. Type 4 allelic variants were found only in healthy cats and all but one were biotype 2. Type 2 and 3 alleles showed extensive N-terminal variation suggesting a plasminogen-binding site as found on the type 1 allele was absent. Cat antisera to ScM were opsonobactericidal, and these potentially protective antibodies increased during ...
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(oleh Ardy Prian Nirwana, S.Pd.Bio & Yusianti Silviani, S.Pd.Bio) Streptococcus adalah bakteri spheris Gram positif yang khasnya berpasangan atau membentuk rantai selama pertumbuhannya. Beberapa kelompok streptococcus adalah flora normal manusia. Streptococcus menghasilkan berbagai enzim dan substansi ekstraseluler. Streptococcus merupakan kelompok bakteri yang heterogen, dan tidak ada sistem yang dapat mengklasifikasikannya. Dua puluh spesies, termasuk Streptococcus…
Unscramble streptococci, Unscramble letters streptococci, Point value for streptococci, Word Decoder for streptococci, Word generator using the letters streptococci, Word Solver streptococci, Possible Scrabble words with streptococci, Anagram of streptococci
Unscramble streptococci, Unscramble letters streptococci, Point value for streptococci, Word Decoder for streptococci, Word generator using the letters streptococci, Word Solver streptococci, Possible Scrabble words with streptococci, Anagram of streptococci
Of all bacteria isolated from the mice, heat-killed Streptococcus sp. and heat-killed E. coli bound to immobilized MGL1. The binding was significantly reduced by the addition of 100 mmol/L Gal but not mannose (Figure 4A). The binding was also abrogated by the addition of 5 mmol/L EDTA, indicating that the interaction between the bacteria Dovitinib side effects and MGL1 was calcium-dependent (Figure 4B). To evaluate the interaction of bacteria with MGL1 on cell surfaces, uptake of fluorescent-labeled bacteria by CHO cells transfected with Mgl1 was examined. These cells engulfed Streptococcus sp., but not E. coli or Enterococcus sp. (Figure 4C), suggesting that Streptococcus sp. was one of the candidates of bacteria that interact with MGL1 during the pathogenesis of experimental colitis.. Figure 4 MGL1 binding to intestinal commensal bacteria. A: Commensal bacteria were isolated from mesenteric lymph nodes of DSS-treated mice on day 7. Heat-killed bacterial bodies were applied on microtiter plates ...
Oral bacteria. Coloured scanning electron micrograph (SEM) of mixed oral bacteria (Streptococcus, round) with some bacilli bacteria (rod-shaped). - Masterfile - Premium Royalty-Free, Code: 679-08425093
The principal source of streptococci in milk is the cows udder. The udder streptococci fall into two broad groups; those of the larger group agree in cultural characters and agglutination affinities with mastitis streptococci; the smaller group is composed of low acid-producing streptococci. The streptococci of the latter group produce clear zones of hemolysis about surface and deep colonies in horse blood agar plates. They attack dextrose, lactose, saccharose, and maltose, but do not ferment raffinose, inulin, mannite, or salicin. Acid production in dextrose by the members of this group is about the same as that produced by human streptococci under the same conditions. The limiting hydrogen ion concentration for these pleomorphic udder streptococci in dextrose serum bouillon is within the limits of the limiting hydrogen ion concentration observed by Avery and Cullen for human streptococci. All the streptococci from the vagina, saliva, skin, and feces have been non-hemolytic. Those from the saliva form
The ability of epithelial cells to sense the external environment and communicate this information to the local immune system, thereby initiating appropriate responses, is essential for the maintenance of health and prevention of the development of chronic inflammatory diseases. Our studies have shown that an oral probiotic commensal strain of S. salivarius is able to inhibit inflammatory responses in human bronchial epithelial cells by downregulating the NF-κB pathway. This is consistent with an emerging paradigm that indicates the downregulation of epithelial immune responses by commensal bacteria (8, 13, 24, 38, 48). Not only did S. salivarius K12 inhibit baseline synthesis of IL-8, but it also suppressed IL-8 secretion when cells were stimulated with pathogenic P. aeruginosa, Salmonella serovar Typhimurium flagellin, or the immunomodulatory host defense peptide LL-37. Most previous studies have focused on IL-8 and IL-6 responses, but here it was demonstrated that this commensal bacterium ...
Summary: Biochemical, menaquinone, fatty acid and DNA analyses were conducted on a number of streptococci of serological group D. The results indicate that S. faecalis, S. faecium, S. casseliflavus and taxa previously designated S. avium, S. durans and S. faecalis var. malodoratus are distinct species. Strains previously labelled S. faecium var. mobilis were shown to be identical with S. casseliflavus. The results also indicate that some group D streptococci recently isolated from chickens constitute a new species.
Scanning electron micrograph (SEM) of Streptococcus salivarius, Gram-positive, coccoid, facultatively anaerobic bacterium. Streptococcus salivarius forms chains of cells which are bound together by the capsular material seen around each cell (shown as surface stipulation in this image). It is the principal commensal bacterium of the oral cavity and a normal inhabitant of the upper respiratory tract in humans. It is the first bacterium that colonizes dental plaque, before being joined by numerous other species of various genera. It creates favourable conditions so other species can begin to colonize. The bacterium colonizes the mouth and upper respiratory tract of humans a few hours after birth, making further exposure to the bacteria harmless. Magnification: x5,335 when shortest axis printed at 25 millimetres. - Stock Image C037/0162
Strains from subclinical mastitis, from the genital tract and tonsils of cattle, from tonsils of a goat and a cat and from the crop and the respiratory tract of canaries were found to constitute a new streptococcal species, for which the name Streptococcus pluranimalium sp. nov. is proposed. Sequencing of 16S rRNA showed that Streptococcus thoraltensis and Streptococcus hyovaginalis were its closest known phylogenetic relatives. The new species showed some phenotypic resemblance to the poorly described species Streptococcus acidominimus, but whole-cell protein analysis and 16S rRNA sequencing revealed that the new species was only distantly related to the type strain of S ...
Group G hemolytic streptococcal cell walls which have been treated with trypsin are composed of a group-specific polysaccharide moiety and a mucopeptide matrix. The mucopeptide contains N-acetylglucosamine, N-acetylmuramic acid, alanine, glutamic acid, lysine, and glycine, a composition similar to that of other groups of streptococci. The Group G carbohydrate is composed of rhamnose, N-acetylgalactosamine, and galactose. Serological studies suggest that the monosaccharide of L-rhamnose is a major component of the determinant of antigenic specificity.. ...
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Streptococci are non-motile, microaerophilic, Grampositive spherical bacteria (cocci). They often occur as chains or pairs and are facultative or strict anaerobes. Streptococci give a negative catalase test, while staphylococci are catalase-positive. Because they are unable to synthesize cytochromes, streptococci cannot carry out oxidative phosphorylation. They are able to ferment sugars, but the end product is always lactic acid. Therefore, streptococci are very acid tolerant and count among the lactic acid bacteria order.. There are many natural sources of streptococci, including humans and diverse animals where they often colonize the mucosal surfaces of the mouth, intestinal tract, nasal passages and pharynx. The presence of streptococci in drinking water indicates fecal contamination. Food sources with high risk of contamination include milk and dairy products, eggs, steamed lobster, ground ham, potato salad, custard, rice pudding and shrimp salad. In most streptococcal food poisoning ...
species of spherical, gram-positive bacteria Streptococci (from phylum Firmicutes) that forms chains and colonizes the mouth and upper respiratory tract of humans just a few hours after birth, making further exposure to the bacteria harmless in most circumstances. It is considered to be a "good" oral bacteria fighting bad odor and disease-causing species yet, if it gets into bloodstream (what, fortunately, rarely happens), it could be associated with sepsis in people with neutropenia (a deficiency in white blood cells). Streptococcus salivarius secretes a glucosltransferase (Gtf) which forms a glucan from sucrose and it uses sucrose (but not glucose) to build a capsule around itself. This bacteria can ferment the glucose yielding lactic acid. S. salivarius is also known to secrete an enzyme called urease. Urease can catalyze the hydrolysis of urea to ammonia and carbon dioxide ...
Looking for b-hemolytic streptococci? Find out information about b-hemolytic streptococci. any of a group of gram-positive bacteria, genus Streptococcus, some of which cause disease. Streptococci are spherical and divide by fission, but they... Explanation of b-hemolytic streptococci
The proteinase activity of strains of group A streptococci isolated from patients in acute and convalescent phases of illness was found to be remarkably constant. Sulfadiazine therapy of patients did not affect proteinase production by the infecting streptococci.. The ability to produce streptococcal proteinase would appear to be related to the strain and not necessarily to the serological type.. No relationship could be found between the capacity of group A streptococci of different serological types to produce proteinase and the various clinical responses to infection with these microorganisms.. ...
This page includes the following topics and synonyms: Group A Beta-hemolytic Streptococcus, Group A Streptococcus, Streptococcus Pyogenes.
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 streptococci are a diverse group of Gram-positive pathogenic cocci that cause clinical disease in humans and domestic animals. They are traditionally classified on the basis of serological reactions, particularly Lancefield grouping based on cell-wall carbohydrates, and haemolytic activity on blood agar. Six groups can be defined by genetic analysis: pyogenic streptococci, milleri or anginosus group, mitis group, salivarius group, mutans group, and bovis group....
Background Successful commensal bacteria have evolved to maintain colonization in challenging environments. The oral viridans streptococci are pioneer colonizers of dental plaque biofilm. Some of...
... is a diverse genus in the Firmicutes phylum and the Bacterial Kingdom. The bacteria under the streptococcus are spherical in shape, or cocci, and Gram-positive. They usually are found to grow in pairs or chains and are oxidase- and catalase-negative. Many species of streptococcus bacteria are facultative anaerobes, meaning that they usually make adenosine triphosphate (ATP) via aerobic respiration in the presence of exygen, but are capable of producing ATP via fermentation if there is no oxygen present. While some species of streptococcus are normally found in the human flora, many species are capable of bringing about various diseases and can be potent. Such diseases range from strep throat (S. pharyngitis) to pneumonia (S. pneumoniae) to even necrotizing human flesh (S. pyogenes). Unfortunately, many of these species has been able to reproduce as antibiotic-resistant strains, which lead to the cause of some epidemics. Two species of this genus, S. agalactiae and S. mutans are ...
TY - JOUR. T1 - Group-A beta-hemolytic streptococci resistance pattern in north Indian pediatric population. AU - Das, Srijit. PY - 2009/9/1. Y1 - 2009/9/1. UR - http://www.scopus.com/inward/record.url?scp=70349792596&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=70349792596&partnerID=8YFLogxK. U2 - 10.4103/0019-5359.56112. DO - 10.4103/0019-5359.56112. M3 - Article. VL - 63. SP - 417. EP - 418. JO - Indian Journal of Medical Sciences. JF - Indian Journal of Medical Sciences. SN - 0019-5359. IS - 9. ER - ...
Ultrasonography showed a 14×8-mm area of decreased echogenicity with arterial flow on Doppler examination. Anatomic details were further delineated by arteriography, which showed a false aneurysm arising from the superficial palmar arch. Clinical presentation, ultrasonography, and angiography suggested a mycotic aneurysm. In the presence of aortic regurgitation, endocarditis was suspected and was actively searched for. Transthoracic echocardiography confirmed the known aortic regurgitation but revealed no vegetations. The patient refused transesophageal cardiac ultrasound. Blood cultures revealed the presence of a penicillin-multisensitive α-hemolytic streptococcus (streptococcus parasanguinis). A 4-week treatment of intravenous penicillin was initiated, with progressive improvement of local symptoms. The mycotic aneurysm was surgically removed. Histological analysis of the aneurysm revealed the presence of many Gram-positive bacteria, thereby confirming the diagnosis. Under antibiotic ...
臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。. To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of "NTU Repository" with "Academic Hub" to form NTU Scholars.. ...
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Vahora, G.Y.; Ernstrom, C.A.; Post, F.J., 1973: Production of proteolytic activity by selected strains of lactic streptococci in skim milk and a whey medium
The purpose of this study was to determine if any factors immediately upstream of the fimA operon were associated with adherence or survival within the host. Just 148 bp upstream and divergently transcribed from the fimA operon, a 1,893-bp ORF (pepO) that encodes a protein with many structural features in common with the M13 (neprilysin) family of metallopeptidases was identified. This family of metallopeptidases includes bacterial members as well as mammalian neuropeptide-processing, immunoregulatory, and peptide hormone-processing zinc metallopeptidases (36). While the role of the bacterial enzymes is uncertain, the mammalian enzymes have been shown to play essential roles in events such as inflammatory response phenomena and in pain and cardiovascular regulation (45, 51, 52).. FW213 PepO contains the essential HEXXH consensus motif typical of this family of peptidases as well as numerous positionally conserved residues known to be critical for the activity of the mammalian enzymes. Some of ...
Statewide surveillance for neonatal sepsis includes reporting of any bacteria (other than coagulase-negative Staphylococcus) isolated from a sterile site in an infant ,7 days of age, and mandatory submission of isolates.. In 2011, 56 cases of neonatal sepsis (0.82 cases per 1,000 live births) were reported compared to 58 cases (0.82 cases per 1,000 live births) in 2010. Among these cases, all were identified via blood or cerebral spinal fluid (CSF). Most cases (86%) were culture-positive within the first 2 days of life. In 2011, group B Streptococcus was the most common bacteria isolated (21) followed by Escherichia coli (17), Streptococcus viridians (3), other Streptococcus spp. (3), Staphylococcus aureus (3), Enterococcus spp. (3), Actinomyces spp. (2), and 1 each Haemophilus influenzae, Klebsiella pneumoniae, group D Streptococcus,. ...
... is a Gram-positive bacterium , with type strain MFe28 (NCTC 11391 ). It is thought to be cariogenic . References Whiley, R. A.; Russell, R. R. B.; Hardie, J. M.; Beighton, D. (1988).
Streptococcus bacteria. Coloured scanning electron micrograph (SEM) of chains of Streptococcus bacteria. Streptococcus bacteria are an example of cocci (round bacteria) that form chains. There are over 50 species of Streptococcus bacteria, some of which cause disease in humans. - Stock Image C026/7497
S. zooepidemicus. Streptococcus is a genus of spherical Gram-positive bacteria belonging to the phylum Firmicutes[2] and the lactic acid bacteria group. Cellular division occurs along a single axis in these bacteria, and thus they grow in chains or pairs, hence the name - from Greek στρεπτος streptos, meaning easily bent or twisted, like a chain (twisted chain). Contrast this with staphylococci, which divide along multiple axes and generate grape-like clusters of cells. Streptococci are oxidase- and catalase-negative, and many are facultative anaerobes.. In 1984, many organisms formerly considered Streptococcus were separated out into the genera Enterococcus and Lactococcus.[3]. ...
Streptococci can be differentiated based on the antigenic characteristics of a carbohydrate in streptococcal cell wall. These Lancefield antigens are given letter names A, B, C, D, and so on. However, note that some strains do not have Lancefield antigens ...
Streptococcus salivarius strain ATCC 7073 16S ribosomal RNA gene, partial sequence; 16S-23S ribosomal RNA internal transcribed spacer, complete sequence; and 23S ribosomal RNA gene, partial ...
Streptococcus salivarius strain ATCC 7073 16S ribosomal RNA gene, partial sequence; 16S-23S ribosomal RNA internal transcribed spacer, complete sequence; and 23S ribosomal RNA gene, partial ...
Due to the major role played by several species of Streptococcus in the etiology of periodontitis, it is important to assess the pattern of Streptococcus pathogenic pathways within the infected subgingival pockets using a bacterial specific 16S rRNA fragment. From the total of 50 patients with periodontitis included in the study, only 23 Streptococcal isolates were considered for further analyses, in which their 16S rRNA fragments were amplified and sequenced. Then, a comprehensive phylogenetic tree was constructed and in silico prediction was performed for the observed Streptococcal species. The phylogenetic analysis of the subgingival Streptococcal species revealed a high discrimination power of the 16S rRNA fragment to accurately identify three groups of Streptococcus on the species level, including S. salivarius (14 isolates), S. anginosus (5 isolates), and S. gordonii (4 isolates). The employment of state-of-art in silico tools indicated that each Streptococcal species group was ...
Results: Among the aerobic organism from meatus and oropharynx, the most frequent isolated strains were alpha-hemolytic Streptococcus (15.4%), followed by coagulase-negative Staphylococcus (14.6%), and Branhamella catarrhalis (13.2%), and the most prevalent isolated strains from sinus were S. aureus (19.1%), Klebsiella pneumonia (16.4%), and B. catarrhalis (15.6%), respectively. The highest antibiotic susceptibility was detected to ciprofloxacin and ceftriaxone in most of the strains; susceptibility to ciprofloxacin ranged from 76.7% (for Pseudomonas aeruginosa) to 100% (for Escherichia coli and Haemophilus influenza); susceptibility to ceftriaxone ranged from 71.4% (for Acinetobacter baumannii) to 100% (for S. pneumonia, Corynebacterium diphtheria, and H. influenza). Besides, regardless of strain, the highest resistance was mostly detected to penicillin (ranging from 33.3% to 91.7%), and to ampicillin (ranging from 38.4% to 83.7%). ...
Resistance in oral streptococci after repeated three-dose erythromycin prophylaxis.: Ten healthy volunteers, from whom no erythromycin-resistant oral streptococ
Family built after PMID=25023666; The GT101 module of Streptococcus parasanguinis dGT1 catalyzes the transfer of glucose to the branch point of the hexasaccharide O-linked to the serine-rich repeat of the bacterial adhesin Fap1 ...