نتایج جستجو برای: staphylococcal enterotoxin b
تعداد نتایج: 930408 فیلتر نتایج به سال:
background: staphylococcus aureus, the major virulence factor of hospital and community acquired infections, secretes numerous exotoxins (super antigens), which may affect immunological and inflammatory status in psoriatic skin lesion. objectives: this study is designed to compare the s. aureus super antigens level in sera of psoriatic patients with normal cases (nevus). patients and methods: a...
Background: Staphylococcal superantigens (SAg;aposs) may have some role in otitis media with effusion (OME). The aim of this study was the search of staphylococcal SAg;aposs in middle ear effusion of children with OME. Methods: This cross sectional-analytic study was done in ENT & pediatric wards upon 64 children with otitis media with effusion (OME) between 1-15 years, (mean age=7.42+4 years)...
results in total, 80 food samples suspected of seb contamination were assessed using the two methods. fifty-four samples were contaminated based on the pcr technique and twenty-six of those were confirmed using the strip assay. conclusions the sensitivity of the sandwich method was approximately 10 ng/ml and that of the competitive method was approximately 250 ng/ml. in the lfd, a highly specif...
Introduction: Breast cancer is one of the most prevalent malignancies among women. Patients whose suffering from this condition, as a result of the use of conventional therapies often have a poor response to treatment and the relapse among them is frequent. In this study, the effects of staphylococcal enterotoxin type B on BAK، FAS، BAX، TNF-a، BCL-2 و Survivin genes expression in human breast ...
Background: Determining the etiologic causes of septic arthritis is of the most importance. Goal of this study was to investigate presence of staphylococcal enterotoxins A, B, C and Toxic Shock Staphylococcal toxin-1 in the synovial fluid of patients with arthritis. Methods: This cross-sectional study was performed in the Pediatric and Orthopedic Wards of Hazrat Rasoul Hospital in Tehran, Iran...
objective: the role of staphylococcal enterotoxin b (seb) in food poisoning is well known, however its role in other diseases remains to be explored. the aim of this study is the molecular screening and characterization of the seb gene in clinically isolated strains. materials and methods: in this experimentally study, 300 staphylococcus aureus (s. aureus) strains isolated from clinical samples...
A sensitive and specific monoclonal antibody-based sandwich enzyme-linked immunosorbent assay (ELISA) was established and validated for the detection of staphylococcal enterotoxin A (SEA). After routine fusion and selection, 10 monoclonal antibodies showed high affinity for SEA. An optimal pair for sandwich ELISA was selected by pairwise interaction analysis. After optimization, the limit of de...
Immunologic cross-reactivity between Streptococcus pyogenes type A exotoxin (erythrogenic toxin) and Staphylococcus aureus enterotoxins B and C1 was demonstrated by Ouchterlony double diffusion, Western immunoblot, and immunodot analyses. Specific antiserum to type A streptococcal exotoxin reacted more strongly with staphylococcal enterotoxin B than with enterotoxin C1. The reactivity of type A...
background accurate and rapid diagnosis of bacterial arthritis is not always possible in unvaccinated (streptococcus pneumoniae and haemophilus influenzae type b) children in iran. objectives searching the staphylococcal superantigen (entrotoxin a, b, c and tsst1) in synovial fluid of cases with inflammatory arthritis. patients and methods this cross sectional study was implemented in the pedia...
background rheumatoid arthritis (ra) is the most common chronic inflammatory disease. the staphylococcal superantigens are considered as the causative agent of ra disease. objectives this study aimed to assess the presence of staphylococcal enterotoxin d in synovial fluid and blood of patients with ra. patients and methods a total of 120 blood and sf samples of patients with ra were studied. ba...
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