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Superantigen gene complement of Streptococcus pyogenes

Virulence Factors and Pathogenesis of Some Streptococcus

Jan 10,2020 Superantigen gene complement of Streptococcus pyogenes#0183;Superantigen gene complement of Streptococcus pyogenes-relationship with other typing methods and short-term stability.Eur J Clin Microbiol Infect Dis.,32:115-125.Fulde,M.and Weigand P.(2013).Virulence Factors and Pathogenesis of Some Streptococcus Jan 10,2020 Superantigen gene complement of Streptococcus pyogenes#0183;Superantigen gene complement of Streptococcus pyogenes-relationship with other typing methods and short-term stability.Eur J Clin Microbiol Infect Dis.,32:115-125.Fulde,M.and Weigand P.(2013).Superantigenic Activity of emm3 Streptococcus pyogenes Is Oct 01,2012 Superantigen gene complement of Streptococcus pyogenes#0183;Streptococcus pyogenes M/emm3 strains have been epidemiologically linked with enhanced infection severity and risk of streptococcal toxic shock syndrome (STSS),a syndrome triggered by superantigenic stimulation of T cells.Comparison of S.pyogenes strains causing STSS demonstrated that emm3 strains were surprisingly less mitogenic than other emm-types (emm1,emm12,emm18,

Superantigenic Activity of emm3 Streptococcus pyogenes Is

Oct 01,2012 Superantigen gene complement of Streptococcus pyogenes#0183;Streptococcus pyogenes M/emm3 strains have been epidemiologically linked with enhanced infection severity and risk of streptococcal toxic shock syndrome (STSS),a syndrome triggered by superantigenic stimulation of T cells.Comparison of S.pyogenes strains causing STSS demonstrated that emm3 strains were surprisingly less mitogenic than other emm-types (emm1,emm12,emm18,Superantigen gene complement of Streptococcus pyogenes Superantigen gene complement of Streptococcus pyogenes - Relationship with other typing methods and short-term stability Article in European Journal of Clinical Microbiology 32(1) August 2012 Superantigen gene complement of Streptococcus pyogenes Aug 31,2012 Superantigen gene complement of Streptococcus pyogenes#0183;The profiling of the superantigen (SAg) encoding genes has been frequently used as a complementary typing method for group A streptococci (GAS),but a confusing gene nomenclature and a large diversity of primers used in screening has led to some conflicting results.The aim of this work was to develop a polymerase chain reaction (PCR) method capable of efficiently amplifying all the known

Superantigen gene complement of Streptococcus pyogenes

Aug 31,2012 Superantigen gene complement of Streptococcus pyogenes#0183;Abstract.Eur J Clin Microbiol Infect Dis (2013) 32:115125 DOI 10.1007/s10096-012-1726-3 ARTICLE Superantigen gene complement of Streptococcus pyogenesrelationship with other typing methods and short-term stability A.Fri Superantigen gene complement of Streptococcus pyogenes#227;es F.R.Pinto C.Silva-Costa M.Ramirez J.Melo-Cristino Received 5 June 2012 /Accepted 8 August 2012 /Published online 31 August 2012Superantigen Genes Are More Important than the emmJul 01,2010 Superantigen gene complement of Streptococcus pyogenes#0183;Abstract.Background.In this study,we examined the role of superantigen genes and emm genotypes of clinical Streptococcus pyogenes isolates collected in Germany between 1997 and 2003..Methods.Multiplex polymerase chain reaction for all 11 currently known superantigen genes and sequencing for emm types were used.Streptococcus pyogenes Superantigens Studies IntoS.pyogenes.retains multiple superantigens has remained elusive.Using a murine model of acute nasopharyngeal infection,the role of each superantigen encoded by .S.pyogenes.MGAS5005 was evaluated using isogenic superantigen-deletion or -complemented strains,and passive immunization with superantigen-neutralizing antibodies.

Streptococci and the complement system interplay during

Jun 28,2020 Superantigen gene complement of Streptococcus pyogenes#0183;Streptococcus pyogenes streptococcal inhibitor of complement (SIC) is a 31kDa secreted protein that binds to the C5b67 and C5b678 complexes.Thereby,it has been suggested to inhibit the terminal complement complex formation on the bacterial surface.Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextClinical and Microbiologic Characteristics of Invasive INTRODUCTION.Streptococcus pyogenes is a significant human pathogen capable of causing a wide spectrum of diseases ranging from uncomplicated infections of the throat and skin to severe life-threatening diseases and poststreptococcal sequelae.Streptococcal pharyngitis is one of the most common childhood diseases worldwide,accounting for several millions of cases each year.Some results are removed in response to a notice of local law requirement.For more information,please see here.

Severe invasive streptococcal infection by Streptococcus

Streptococcus pyogenes ,a group A Streptococcus (GAS),has been recognized as the causative pathogen in patients with severe invasive streptococcal infection with or without necrotizing fasciitis.In recent epidemiological studies,Streptococcus dysgalactiae subsp.equisimilis (SDSE) has been isolated from severe invasive streptococcal infection..Complete genome sequence showed that SDSE is Molecular epidemiology and antimicrobial resistance of Jul 13,2020 Superantigen gene complement of Streptococcus pyogenes#0183;Streptococcus pyogenes (Lancefield group A streptococcus; GAS) is a major pathogen causing infectious diseases in children.It causes suppurative and non-suppurative diseases,such as erysipelas,suppurative tonsillitis,scarlet fever,rheumatic fever,and glomerulonephritis [].Globally,there are about 616 million cases of GAS pharyngitis every year,among which,17,800 cases are new Molecular epidemiology and antimicrobial resistance of Jul 13,2020 Superantigen gene complement of Streptococcus pyogenes#0183;Streptococcus pyogenes (Lancefield group A streptococcus; GAS) is a major pathogen causing infectious diseases in children.It causes suppurative and non-suppurative diseases,such as erysipelas,suppurative tonsillitis,scarlet fever,rheumatic fever,and glomerulonephritis [].Globally,there are about 616 million cases of GAS pharyngitis every year,among which,17,800 cases are new

Molecular characterization and phylogenetic distribution

Streptococcal superantigen (SSA),a superantigen isolated from a TSLS- inducing,serotype M3 S.pyogenes strain,has recently been identified.We here describe the cloning,sequencing,and phylogenetic distribution of the SSA structural gene.Members of a new subgroup of Streptococcus anginosus Apr 01,2017 Superantigen gene complement of Streptococcus pyogenes#0183;A complementary PCR-based screening for S.pyogenes virulence factor as well as antibiotic resistance genes revealed not only the presence of superantigen- and extracellular DNase coding genes identical to corresponding genes of S.pyogenes,but also of erythromycin and tetracycline resistance genes in the genomes of the analyzed S.anginosus Identification of two new core chromosome-encoded May 01,2019 Superantigen gene complement of Streptococcus pyogenes#0183;Superantigens are ubiquitous within the Streptococcus pyogenes genome,which suggests that superantigen-mediated T-cell activation provides a significant selective advantage.S.pyogenes can carry a variable complement of the 11 known superantigens.We have identified two novel S.pyogenes superantigens,denoted speQ and speR,adjacent to each other in the core

Identification of superantigen genes speM,ssa,and smeZ

Abstract.Group C and G Streptococcus dysgalactiae subspecies equisimilis (GCSE and GGSE) cause a substantial percentage of invasive disease caused by beta-hemolytic streptococci.To determine whether Streptococcus pyogenes superantigen (SAg) genes commonly exist within these organisms,20 recent invasive GCSE and GGSE human isolates and one group G Streptococcus canis humanIdentification of superantigen genes speM,ssa,and smeZ Abstract.Group C and G Streptococcus dysgalactiae subspecies equisimilis (GCSE and GGSE) cause a substantial percentage of invasive disease caused by beta-hemolytic streptococci.To determine whether Streptococcus pyogenes superantigen (SAg) genes commonly exist within these organisms,20 recent invasive GCSE and GGSE human isolates and one group G Streptococcus canis humanHuman Group A Streptococci Virulence Genes in BovinePhage-encoded virulence genes of group A streptococci were detected in 10 (55.6%) of 18 isolates of group C streptococci that had caused bovine mastitis.Bovine isolates carried other genetic determinants,such as composite transposon Tn1207.3/10394.4 (100%) and antimicrobial drug resistance genes erm(B)/erm(A) (22.2%),linB (16.6%),and tet(M)/tet(O) (66.7%),located on mobile elements.

High virulence gene diversity in Streptococcus pyogenes

Superantigen gene complement of Streptococcus pyogenesrelationship with other typing methods and short-term stability.European Journal of Clinical Microbiology Infectious Diseases 32 (1) 115-125High virulence gene diversity in Streptococcus pyogenes Superantigen gene complement of Streptococcus pyogenesrelationship with other typing methods and short-term stability.European Journal of Clinical Microbiology Infectious Diseases 32 (1) 115-125High virulence gene diversity in Streptococcus pyogenes Mar 20,2019 Superantigen gene complement of Streptococcus pyogenes#0183;Fri Superantigen gene complement of Streptococcus pyogenes#227;es et al.(2013) Fri Superantigen gene complement of Streptococcus pyogenes#227;es A,Pinto FR,Silva-Costa C,Ramirez M,Melo-Cristino J.Superantigen gene complement of Streptococcus pyogenesrelationship with other typing methods and short-term stability.European Journal of Clinical Microbiology Infectious Diseases.2013; 32 (1):115125.doi 10.1007/s10096-012-1726-3.

Group A streptococci clones associated with invasive

Fri Superantigen gene complement of Streptococcus pyogenes#227;es A,Pinto FR,Silva-Costa C,Ramirez M,Melo-Cristino J.Superantigen gene complement of Streptococcus pyogenes-relationship with other typing methods and short-term stability.Eur J Clin Microbiol Infect Dis.2012.Frontiers High Prevalence of Macrolide-resistance and Streptococcus pyogenes,or group A Streptococcus,is a pathogen responsible for a wide range of clinical manifestations,from mild skin and soft tissue infections and pharyngitis to severe diseases.Its epidemiological characteristics should be comprehensively under surveillance for regulating the national prevention and treatment practice.Herein,a total of 140 S.pyogenes,including 38 Effects of Streptococcal Pyrogenic Exotoxin B on Sep 01,2008 Superantigen gene complement of Streptococcus pyogenes#0183;J Formos Med Assoc 2008 Vol 107 No 9 677 Streptococcus pyogenes (group A streptococcus,GAS) is an important Gram-positive human pathogen,which causes mild to severe diseases,including tonsillitis,pharyngitis,cellulitis,scarlet fever,rheu- matic fever,necrotizing fasciitis,and streptococcal toxic shock syndrome (STSS).1,2 In Taiwan,the most common clinical

Effects of Streptococcal Pyrogenic Exotoxin B on

Sep 01,2008 Superantigen gene complement of Streptococcus pyogenes#0183;J Formos Med Assoc 2008 Vol 107 No 9 677 Streptococcus pyogenes (group A streptococcus,GAS) is an important Gram-positive human pathogen,which causes mild to severe diseases,including tonsillitis,pharyngitis,cellulitis,scarlet fever,rheu- matic fever,necrotizing fasciitis,and streptococcal toxic shock syndrome (STSS).1,2 In Taiwan,the most common clinicalDetection of Streptococcus pyogenes Virulence Factors Request PDF Detection of Streptococcus pyogenes Virulence Factors Streptococcus pyogenes encodes multiple virulence factors and their presence is often related to the severity of the disease.Cysteine Proteinase from Streptococcus pyogenes Enables May 31,2013 Superantigen gene complement of Streptococcus pyogenes#0183;Streptococcus pyogenes is an important human pathogen that causes invasive diseases such as necrotizing fasciitis,sepsis,and streptococcal toxic shock syndrome.We investigated the function of a major cysteine protease from S.pyogenes that affects the amount of C1-esterase inhibitor (C1-INH) and other complement factors and aimed to elucidate the mechanism involved in

Clinical and Microbiologic Characteristics of Invasive

INTRODUCTION.Streptococcus pyogenes is a significant human pathogen capable of causing a wide spectrum of diseases ranging from uncomplicated infections of the throat and skin to severe life-threatening diseases and poststreptococcal sequelae.Streptococcal pharyngitis is one of the most common childhood diseases worldwide,accounting for several millions of cases each year.Cited by 4Publish Year 2019Author Fri Superantigen gene complement of Streptococcus pyogenes#227;es A,Melo-Cristino J,Ramirez M(PDF) Changes in emm types and superantigen gene content Changes in emm types and superantigen gene content of Streptococcus pyogenes causing invasive infections in Portugal Article (PDF Available) in Scientific Reports 9(1) December 2019 with 29 ReadsCited by 30Publish Year 2012Author Ana Fri Superantigen gene complement of Streptococcus pyogenes#227;es,Francisco R Pinto,Catarina Silva-Costa,Mario Ramirez,Jos Superantigen gene complement of Streptococcus pyogenes#233; Melo-CristinoEmergence of Streptococcus pyogenes emm102 CausingFri Superantigen gene complement of Streptococcus pyogenes#227;es A,Pinto FR,Silva-Costa C,Ramirez M,Melo-Cristino J (2013) Superantigen gene complement of Streptococcus pyogenesrelationship with other typing methods and short-term stability.Eur J Clin Microbiol Infect Dis 32 115125

Cited by 22Publish Year 2013Author A.Fri Superantigen gene complement of Streptococcus pyogenes#227;es,F.R.Pinto,C.Silva-Costa,M.Ramirez,J.Melo-CristinoSuperantigen gene complement of Streptococcus pyogenes

Aug 31,2012 Superantigen gene complement of Streptococcus pyogenes#0183;Read Superantigen gene complement of Streptococcus pyogenesrelationship with other typing methods and short-term stability,European Journal of Clinical Microbiology Infectious Diseases on DeepDyve,the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.Characterization of Streptococcus pyogenes isolates Apr 01,2016 Superantigen gene complement of Streptococcus pyogenes#0183;Streptococcus pyogenes or group A Streptococcus (GAS) is a human pathogen responsible for a wide range of clinical manifestations,from mild skin/soft tissue infections and pharyngitis to more severe diseases that may be complicated by a streptococcal toxic shock syndrome (STSS) (Carapetis et al.,2005).Although meningitis is rare and has been reported in only 12% of GASCharacterization of Streptococcus pyogenes isolates Apr 01,2016 Superantigen gene complement of Streptococcus pyogenes#0183;Streptococcus pyogenes or group A Streptococcus (GAS) is a human pathogen responsible for a wide range of clinical manifestations,from mild skin/soft tissue infections and pharyngitis to more severe diseases that may be complicated by a streptococcal toxic shock syndrome (STSS) (Carapetis et al.,2005).Although meningitis is rare and has been reported in only 12% of GAS

Characteristics of Group A Streptococcus Strains

Streptococcus pyogenes,also known as group A Streptococcus (GAS),is a common human pathogen that can induce a wide spectrum of diseases,ranging from noninvasive diseases,such as pharyngitis,scarlet fever,and impetigo,to invasive diseases,such as erysipelas,cellulitis,pneumonia,bacteremia,necrotizing fasciitis,and toxic shock syndrome..Moreover,GAS can cause rheumaticChanges in emm types and superantigen gene content of Dec 02,2019 Superantigen gene complement of Streptococcus pyogenes#0183;Fri Superantigen gene complement of Streptococcus pyogenes#227;es,A.,Melo-Cristino,J.,Ramirez,M.et al.Changes in emm types and superantigen gene content of Streptococcus pyogenes causing invasive infections in Portugal.Sci Rep 9,12345Next(PDF) Changes in emm types and superantigen geneChanges in emm types and superantigen gene content of Streptococcus pyogenes causing invasive infections in Portugal Article (PDF Available) in Scientific Reports 9(1) December 2019 with 29 Reads

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