Sökning: "emm gene"

Hittade 5 avhandlingar innehållade orden emm gene.

  1. 1. Superantigens in group A streptococcus : gene diversity and humoral immune response

    Författare :Linda Maripuu; Mari Norgren; Susan Hollingshead; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Group A streptococcus; Streptococcus pyogenes; superantigen SAg ; SAg-gene profile; M-protein; emm-genotype; biomedicinsk laboratorievetenskap; biomedical laboratory science;

    Sammanfattning : Group A streptococcus (GAS) is a strictly human pathogen that causes infections ranging from asymptomatic carriage to the highly lethal streptococcal toxic shock syndrome (STSS). GAS are classified according to the sequence of the variable 5’ end of the emm-gene that encodes the surface associated M-protein. LÄS MER

  3. 2. Group A Streptococci; Epidemiology and Genetics of Antibiotic Resistance

    Författare :Aftab Jasir; Avdelningen för medicinsk mikrobiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microbiology; typing; epidemiology; M protein; emm gene; erythromycin; tetracycline; macrolides; streptococci; antibiotics; mykologi; virologi; bakteriologi; Mikrobiologi; mycology; virology; bacteriology;

    Sammanfattning : Group A streptococci (GAS) cause throat and skin infections, severe invasive diseases as well as the non-suppurative complications acute rheumatic fever and glomerulonephritis. GAS have retained susceptibility to betalactam drugs, but resistance to alternative antibiotics is of concern. LÄS MER

  4. 3. Streptococcal cell surface proteins : structure and gene characterisation

    Författare :Viatcheslav Katerov; Avdelningen för medicinsk mikrobiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Mikrobiologi; mycology; virology; bacteriology; virologi; mykologi; Microbiology; bakteriologi;

    Sammanfattning : Streptococcus pyogenes (group A streptococci, GAS) is a potent human pathogen known to express a number of cell surface associated virulence factors. It is an established fact that these different surface proteins play an important role during infection. LÄS MER

  5. 4. Clinical and molecular studies of β-haemolytic streptococci

    Författare :Kristina Trell; Infektionsmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Beta-hemolytic streptococci; Streptococcus dysgalactiae; MALDI-TOF MS analysis; Streptococcus equi; Streptococcus pyogenes; endometritis; Erysipelas;

    Sammanfattning : Beta-haemolytic streptococci (BHS) are important causes of human infections and they have traditionally been grouped according to Lancefield antigens. The spectrum of infections caused by BHS includes pharyngitis, skin infections, bacteraemia/sepsis, endocarditis, septic arthritis and meningitis. LÄS MER

  7. 5. Invasive group A streptococcal infection : host and pathogen interactions

    Författare :Björn K G Eriksson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Group A streptococci; invasive infections; erysipelas; Streptococcal Toxic Shock Syndrome STSS ; epidemiology; M1 serotype streptococcal pyrogenic exotoxins Spe ; SpeA; toxin neutralization; opsonization;

    Sammanfattning : Invasive group A streptococcal (GAS) infections were studied in 229 patients with a clinical diagnosis of erysipelas and 151 patients with GAS bacteremia, respectively. Beta-hemolytic streptococci were identified in about a third of the erysipelas patients, mostly group A, whereas group G streptococci were identified in about half as many episodes. LÄS MER